Uncomment the code that cause by #19254

contrib/mesos/pkg/scheduler/integration/integration_test.go

@@ -623,8 +623,7 @@ func (lt lifecycleTest) Start() <-chan LaunchedTask {
 }
 
 func (lt lifecycleTest) Close() {
-	// TODO: Uncomment when fix #19254
+	lt.apiServer.server.Close()
-	// lt.apiServer.server.Close()
 }
 
 func (lt lifecycleTest) End() <-chan struct{} {

pkg/apiserver/apiserver_test.go

@@ -778,8 +778,7 @@ func TestNotFound(t *testing.T) {
 		"simpleroots": &SimpleRESTStorage{},
 	})
 	server := httptest.NewServer(handler)
-	// TODO: Uncomment when fix #19254
+	defer server.Close()
-	// defer server.Close()
 	client := http.Client{}
 	for k, v := range cases {
 		request, err := http.NewRequest(v.Method, server.URL+v.Path, nil)
@@ -841,8 +840,7 @@ func TestUnimplementedRESTStorage(t *testing.T) {
 		"foo": UnimplementedRESTStorage{},
 	})
 	server := httptest.NewServer(handler)
-	// TODO: Uncomment when fix #19254
+	defer server.Close()
-	// defer server.Close()
 	client := http.Client{}
 	for k, v := range cases {
 		request, err := http.NewRequest(v.Method, server.URL+v.Path, bytes.NewReader([]byte(`{"kind":"Simple","apiVersion":"version"}`)))
@@ -869,8 +867,7 @@ func TestUnimplementedRESTStorage(t *testing.T) {
 func TestVersion(t *testing.T) {
 	handler := handle(map[string]rest.Storage{})
 	server := httptest.NewServer(handler)
-	// TODO: Uncomment when fix #19254
+	defer server.Close()
-	// defer server.Close()
 	client := http.Client{}
 
 	request, err := http.NewRequest("GET", server.URL+"/version", nil)
@@ -1066,8 +1063,7 @@ func TestList(t *testing.T) {
 		}
 		var handler = handleInternal(storage, admissionControl, selfLinker)
 		server := httptest.NewServer(handler)
-		// TODO: Uncomment when fix #19254
+		defer server.Close()
-		// defer server.Close()
 
 		resp, err := http.Get(server.URL + testCase.url)
 		if err != nil {
@@ -1111,8 +1107,7 @@ func TestErrorList(t *testing.T) {
 	storage["simple"] = &simpleStorage
 	handler := handle(storage)
 	server := httptest.NewServer(handler)
-	// TODO: Uncomment when fix #19254
+	defer server.Close()
-	// defer server.Close()
 
 	resp, err := http.Get(server.URL + "/" + prefix + "/" + testGroupVersion.Group + "/" + testGroupVersion.Version + "/simple")
 	if err != nil {
@@ -1137,8 +1132,7 @@ func TestNonEmptyList(t *testing.T) {
 	storage["simple"] = &simpleStorage
 	handler := handle(storage)
 	server := httptest.NewServer(handler)
-	// TODO: Uncomment when fix #19254
+	defer server.Close()
-	// defer server.Close()
 
 	resp, err := http.Get(server.URL + "/" + prefix + "/" + testGroupVersion.Group + "/" + testGroupVersion.Version + "/simple")
 	if err != nil {
@@ -1189,8 +1183,7 @@ func TestSelfLinkSkipsEmptyName(t *testing.T) {
 	storage["simple"] = &simpleStorage
 	handler := handle(storage)
 	server := httptest.NewServer(handler)
-	// TODO: Uncomment when fix #19254
+	defer server.Close()
-	// defer server.Close()
 
 	resp, err := http.Get(server.URL + "/" + prefix + "/" + testGroupVersion.Group + "/" + testGroupVersion.Version + "/simple")
 	if err != nil {
@@ -1272,8 +1265,7 @@ func TestExport(t *testing.T) {
 	storage["simple"] = &simpleStorage
 	handler := handleLinker(storage, selfLinker)
 	server := httptest.NewServer(handler)
-	// TODO: Uncomment when fix #19254
+	defer server.Close()
-	// defer server.Close()
 
 	resp, err := http.Get(server.URL + "/" + prefix + "/" + testGroupVersion.Group + "/" + testGroupVersion.Version + "/namespaces/default/simple/id?export=true")
 	if err != nil {
@@ -1318,8 +1310,7 @@ func TestGet(t *testing.T) {
 	storage["simple"] = &simpleStorage
 	handler := handleLinker(storage, selfLinker)
 	server := httptest.NewServer(handler)
-	// TODO: Uncomment when fix #19254
+	defer server.Close()
-	// defer server.Close()
 
 	resp, err := http.Get(server.URL + "/" + prefix + "/" + testGroupVersion.Group + "/" + testGroupVersion.Version + "/namespaces/default/simple/id")
 	if err != nil {
@@ -1351,8 +1342,7 @@ func TestGetBinary(t *testing.T) {
 	}
 	stream := simpleStorage.stream
 	server := httptest.NewServer(handle(map[string]rest.Storage{"simple": &simpleStorage}))
-	// TODO: Uncomment when fix #19254
+	defer server.Close()
-	// defer server.Close()
 
 	req, err := http.NewRequest("GET", server.URL+"/"+prefix+"/"+testGroupVersion.Group+"/"+testGroupVersion.Version+"/namespaces/default/simple/binary", nil)
 	if err != nil {
@@ -1429,8 +1419,7 @@ func TestGetWithOptions(t *testing.T) {
 	storage["simple"] = &simpleStorage
 	handler := handle(storage)
 	server := httptest.NewServer(handler)
-	// TODO: Uncomment when fix #19254
+	defer server.Close()
-	// defer server.Close()
 
 	resp, err := http.Get(server.URL + "/" + prefix + "/" + testGroupVersion.Group + "/" + testGroupVersion.Version + "/namespaces/default/simple/id?param1=test1&param2=test2")
 	if err != nil {
@@ -1472,8 +1461,7 @@ func TestGetWithOptionsAndPath(t *testing.T) {
 	storage["simple"] = &simpleStorage
 	handler := handle(storage)
 	server := httptest.NewServer(handler)
-	// TODO: Uncomment when fix #19254
+	defer server.Close()
-	// defer server.Close()
 
 	resp, err := http.Get(server.URL + "/" + prefix + "/" + testGroupVersion.Group + "/" + testGroupVersion.Version + "/namespaces/default/simple/id/a/different/path?param1=test1&param2=test2&atAPath=not")
 	if err != nil {
@@ -1517,8 +1505,7 @@ func TestGetAlternateSelfLink(t *testing.T) {
 	storage["simple"] = &simpleStorage
 	handler := handleLinker(storage, selfLinker)
 	server := httptest.NewServer(handler)
-	// TODO: Uncomment when fix #19254
+	defer server.Close()
-	// defer server.Close()
 
 	resp, err := http.Get(server.URL + "/" + prefix + "/" + testGroupVersion.Group + "/" + testGroupVersion.Version + "/namespaces/test/simple/id")
 	if err != nil {
@@ -1556,8 +1543,7 @@ func TestGetNamespaceSelfLink(t *testing.T) {
 	storage["simple"] = &simpleStorage
 	handler := handleInternal(storage, admissionControl, selfLinker)
 	server := httptest.NewServer(handler)
-	// TODO: Uncomment when fix #19254
+	defer server.Close()
-	// defer server.Close()
 
 	resp, err := http.Get(server.URL + "/" + prefix + "/" + newGroupVersion.Group + "/" + newGroupVersion.Version + "/namespaces/foo/simple/id")
 	if err != nil {
@@ -1586,8 +1572,7 @@ func TestGetMissing(t *testing.T) {
 	storage["simple"] = &simpleStorage
 	handler := handle(storage)
 	server := httptest.NewServer(handler)
-	// TODO: Uncomment when fix #19254
+	defer server.Close()
-	// defer server.Close()
 
 	resp, err := http.Get(server.URL + "/" + prefix + "/" + testGroupVersion.Group + "/" + testGroupVersion.Version + "/simple/id")
 	if err != nil {
@@ -1613,8 +1598,7 @@ func TestConnect(t *testing.T) {
 	}
 	handler := handle(storage)
 	server := httptest.NewServer(handler)
-	// TODO: Uncomment when fix #19254
+	defer server.Close()
-	// defer server.Close()
 
 	resp, err := http.Get(server.URL + "/" + prefix + "/" + testGroupVersion.Group + "/" + testGroupVersion.Version + "/namespaces/default/simple/" + itemID + "/connect")
 
@@ -1652,8 +1636,7 @@ func TestConnectResponderObject(t *testing.T) {
 	}
 	handler := handle(storage)
 	server := httptest.NewServer(handler)
-	// TODO: Uncomment when fix #19254
+	defer server.Close()
-	// defer server.Close()
 
 	resp, err := http.Get(server.URL + "/" + prefix + "/" + testGroupVersion.Group + "/" + testGroupVersion.Version + "/namespaces/default/simple/" + itemID + "/connect")
 
@@ -1694,8 +1677,7 @@ func TestConnectResponderError(t *testing.T) {
 	}
 	handler := handle(storage)
 	server := httptest.NewServer(handler)
-	// TODO: Uncomment when fix #19254
+	defer server.Close()
-	// defer server.Close()
 
 	resp, err := http.Get(server.URL + "/" + prefix + "/" + testGroupVersion.Group + "/" + testGroupVersion.Version + "/namespaces/default/simple/" + itemID + "/connect")
 
@@ -1764,8 +1746,7 @@ func TestConnectWithOptions(t *testing.T) {
 	}
 	handler := handle(storage)
 	server := httptest.NewServer(handler)
-	// TODO: Uncomment when fix #19254
+	defer server.Close()
-	// defer server.Close()
 
 	resp, err := http.Get(server.URL + "/" + prefix + "/" + testGroupVersion.Group + "/" + testGroupVersion.Version + "/namespaces/default/simple/" + itemID + "/connect?param1=value1&param2=value2")
 
@@ -1815,8 +1796,7 @@ func TestConnectWithOptionsAndPath(t *testing.T) {
 	}
 	handler := handle(storage)
 	server := httptest.NewServer(handler)
-	// TODO: Uncomment when fix #19254
+	defer server.Close()
-	// defer server.Close()
 
 	resp, err := http.Get(server.URL + "/" + prefix + "/" + testGroupVersion.Group + "/" + testGroupVersion.Version + "/namespaces/default/simple/" + itemID + "/connect/" + testPath + "?param1=value1&param2=value2")
 
@@ -1856,8 +1836,7 @@ func TestDelete(t *testing.T) {
 	storage["simple"] = &simpleStorage
 	handler := handle(storage)
 	server := httptest.NewServer(handler)
-	// TODO: Uncomment when fix #19254
+	defer server.Close()
-	// defer server.Close()
 
 	client := http.Client{}
 	request, err := http.NewRequest("DELETE", server.URL+"/"+prefix+"/"+testGroupVersion.Group+"/"+testGroupVersion.Version+"/namespaces/default/simple/"+ID, nil)
@@ -1880,8 +1859,7 @@ func TestDeleteWithOptions(t *testing.T) {
 	storage["simple"] = &simpleStorage
 	handler := handle(storage)
 	server := httptest.NewServer(handler)
-	// TODO: Uncomment when fix #19254
+	defer server.Close()
-	// defer server.Close()
 
 	grace := int64(300)
 	item := &api.DeleteOptions{
@@ -1922,8 +1900,7 @@ func TestLegacyDelete(t *testing.T) {
 	var _ rest.Deleter = storage["simple"].(LegacyRESTStorage)
 	handler := handle(storage)
 	server := httptest.NewServer(handler)
-	// TODO: Uncomment when fix #19254
+	defer server.Close()
-	// defer server.Close()
 
 	client := http.Client{}
 	request, err := http.NewRequest("DELETE", server.URL+"/"+prefix+"/"+testGroupVersion.Group+"/"+testGroupVersion.Version+"/namespaces/default/simple/"+ID, nil)
@@ -1949,8 +1926,7 @@ func TestLegacyDeleteIgnoresOptions(t *testing.T) {
 	storage["simple"] = LegacyRESTStorage{&simpleStorage}
 	handler := handle(storage)
 	server := httptest.NewServer(handler)
-	// TODO: Uncomment when fix #19254
+	defer server.Close()
-	// defer server.Close()
 
 	item := api.NewDeleteOptions(300)
 	body, err := runtime.Encode(codec, item)
@@ -1982,8 +1958,7 @@ func TestDeleteInvokesAdmissionControl(t *testing.T) {
 	storage["simple"] = &simpleStorage
 	handler := handleDeny(storage)
 	server := httptest.NewServer(handler)
-	// TODO: Uncomment when fix #19254
+	defer server.Close()
-	// defer server.Close()
 
 	client := http.Client{}
 	request, err := http.NewRequest("DELETE", server.URL+"/"+prefix+"/"+testGroupVersion.Group+"/"+testGroupVersion.Version+"/namespaces/default/simple/"+ID, nil)
@@ -2005,8 +1980,7 @@ func TestDeleteMissing(t *testing.T) {
 	storage["simple"] = &simpleStorage
 	handler := handle(storage)
 	server := httptest.NewServer(handler)
-	// TODO: Uncomment when fix #19254
+	defer server.Close()
-	// defer server.Close()
 
 	client := http.Client{}
 	request, err := http.NewRequest("DELETE", server.URL+"/"+prefix+"/"+testGroupVersion.Group+"/"+testGroupVersion.Version+"/namespaces/default/simple/"+ID, nil)
@@ -2040,8 +2014,7 @@ func TestPatch(t *testing.T) {
 	}
 	handler := handleLinker(storage, selfLinker)
 	server := httptest.NewServer(handler)
-	// TODO: Uncomment when fix #19254
+	defer server.Close()
-	// defer server.Close()
 
 	client := http.Client{}
 	request, err := http.NewRequest("PATCH", server.URL+"/"+prefix+"/"+testGroupVersion.Group+"/"+testGroupVersion.Version+"/namespaces/default/simple/"+ID, bytes.NewReader([]byte(`{"labels":{"foo":"bar"}}`)))
@@ -2073,8 +2046,7 @@ func TestPatchRequiresMatchingName(t *testing.T) {
 	storage["simple"] = &simpleStorage
 	handler := handle(storage)
 	server := httptest.NewServer(handler)
-	// TODO: Uncomment when fix #19254
+	defer server.Close()
-	// defer server.Close()
 
 	client := http.Client{}
 	request, err := http.NewRequest("PATCH", server.URL+"/"+prefix+"/"+testGroupVersion.Group+"/"+testGroupVersion.Version+"/namespaces/default/simple/"+ID, bytes.NewReader([]byte(`{"metadata":{"name":"idbar"}}`)))
@@ -2101,8 +2073,7 @@ func TestUpdate(t *testing.T) {
 	}
 	handler := handleLinker(storage, selfLinker)
 	server := httptest.NewServer(handler)
-	// TODO: Uncomment when fix #19254
+	defer server.Close()
-	// defer server.Close()
 
 	item := &apiservertesting.Simple{
 		ObjectMeta: api.ObjectMeta{
@@ -2139,8 +2110,7 @@ func TestUpdateInvokesAdmissionControl(t *testing.T) {
 	storage["simple"] = &simpleStorage
 	handler := handleDeny(storage)
 	server := httptest.NewServer(handler)
-	// TODO: Uncomment when fix #19254
+	defer server.Close()
-	// defer server.Close()
 
 	item := &apiservertesting.Simple{
 		ObjectMeta: api.ObjectMeta{
@@ -2173,8 +2143,7 @@ func TestUpdateRequiresMatchingName(t *testing.T) {
 	storage["simple"] = &simpleStorage
 	handler := handleDeny(storage)
 	server := httptest.NewServer(handler)
-	// TODO: Uncomment when fix #19254
+	defer server.Close()
-	// defer server.Close()
 
 	item := &apiservertesting.Simple{
 		Other: "bar",
@@ -2203,8 +2172,7 @@ func TestUpdateAllowsMissingNamespace(t *testing.T) {
 	storage["simple"] = &simpleStorage
 	handler := handle(storage)
 	server := httptest.NewServer(handler)
-	// TODO: Uncomment when fix #19254
+	defer server.Close()
-	// defer server.Close()
 
 	item := &apiservertesting.Simple{
 		ObjectMeta: api.ObjectMeta{
@@ -2241,8 +2209,7 @@ func TestUpdateAllowsMismatchedNamespaceOnError(t *testing.T) {
 	}
 	handler := handleLinker(storage, selfLinker)
 	server := httptest.NewServer(handler)
-	// TODO: Uncomment when fix #19254
+	defer server.Close()
-	// defer server.Close()
 
 	item := &apiservertesting.Simple{
 		ObjectMeta: api.ObjectMeta{
@@ -2279,8 +2246,7 @@ func TestUpdatePreventsMismatchedNamespace(t *testing.T) {
 	storage["simple"] = &simpleStorage
 	handler := handle(storage)
 	server := httptest.NewServer(handler)
-	// TODO: Uncomment when fix #19254
+	defer server.Close()
-	// defer server.Close()
 
 	item := &apiservertesting.Simple{
 		ObjectMeta: api.ObjectMeta{
@@ -2315,8 +2281,7 @@ func TestUpdateMissing(t *testing.T) {
 	storage["simple"] = &simpleStorage
 	handler := handle(storage)
 	server := httptest.NewServer(handler)
-	// TODO: Uncomment when fix #19254
+	defer server.Close()
-	// defer server.Close()
 
 	item := &apiservertesting.Simple{
 		ObjectMeta: api.ObjectMeta{
@@ -2350,8 +2315,7 @@ func TestCreateNotFound(t *testing.T) {
 		},
 	})
 	server := httptest.NewServer(handler)
-	// TODO: Uncomment when fix #19254
+	defer server.Close()
-	// defer server.Close()
 	client := http.Client{}
 
 	simple := &apiservertesting.Simple{Other: "foo"}
@@ -2377,8 +2341,7 @@ func TestCreateNotFound(t *testing.T) {
 func TestCreateChecksDecode(t *testing.T) {
 	handler := handle(map[string]rest.Storage{"simple": &SimpleRESTStorage{}})
 	server := httptest.NewServer(handler)
-	// TODO: Uncomment when fix #19254
+	defer server.Close()
-	// defer server.Close()
 	client := http.Client{}
 
 	simple := &api.Pod{}
@@ -2574,8 +2537,7 @@ func TestCreateWithName(t *testing.T) {
 		"simple/sub": storage,
 	})
 	server := httptest.NewServer(handler)
-	// TODO: Uncomment when fix #19254
+	defer server.Close()
-	// defer server.Close()
 	client := http.Client{}
 
 	simple := &apiservertesting.Simple{Other: "foo"}
@@ -2602,8 +2564,7 @@ func TestCreateWithName(t *testing.T) {
 func TestUpdateChecksDecode(t *testing.T) {
 	handler := handle(map[string]rest.Storage{"simple": &SimpleRESTStorage{}})
 	server := httptest.NewServer(handler)
-	// TODO: Uncomment when fix #19254
+	defer server.Close()
-	// defer server.Close()
 	client := http.Client{}
 
 	simple := &api.Pod{}
@@ -2677,8 +2638,7 @@ func TestCreate(t *testing.T) {
 	}
 	handler := handleLinker(map[string]rest.Storage{"foo": &storage}, selfLinker)
 	server := httptest.NewServer(handler)
-	// TODO: Uncomment when fix #19254
+	defer server.Close()
-	// defer server.Close()
 	client := http.Client{}
 
 	simple := &apiservertesting.Simple{
@@ -2805,8 +2765,7 @@ func TestCreateInNamespace(t *testing.T) {
 	}
 	handler := handleLinker(map[string]rest.Storage{"foo": &storage}, selfLinker)
 	server := httptest.NewServer(handler)
-	// TODO: Uncomment when fix #19254
+	defer server.Close()
-	// defer server.Close()
 	client := http.Client{}
 
 	simple := &apiservertesting.Simple{
@@ -2865,8 +2824,7 @@ func TestCreateInvokesAdmissionControl(t *testing.T) {
 	}
 	handler := handleInternal(map[string]rest.Storage{"foo": &storage}, deny.NewAlwaysDeny(), selfLinker)
 	server := httptest.NewServer(handler)
-	// TODO: Uncomment when fix #19254
+	defer server.Close()
-	// defer server.Close()
 	client := http.Client{}
 
 	simple := &apiservertesting.Simple{
@@ -2928,8 +2886,7 @@ func TestDelayReturnsError(t *testing.T) {
 	}
 	handler := handle(map[string]rest.Storage{"foo": &storage})
 	server := httptest.NewServer(handler)
-	// TODO: Uncomment when fix #19254
+	defer server.Close()
-	// defer server.Close()
 
 	status := expectApiStatus(t, "DELETE", fmt.Sprintf("%s/"+prefix+"/"+testGroupVersion.Group+"/"+testGroupVersion.Version+"/namespaces/default/foo/bar", server.URL), nil, http.StatusConflict)
 	if status.Status != unversioned.StatusFailure || status.Message == "" || status.Details == nil || status.Reason != unversioned.StatusReasonAlreadyExists {
@@ -2949,8 +2906,7 @@ func TestWriteJSONDecodeError(t *testing.T) {
 	server := httptest.NewServer(http.HandlerFunc(func(w http.ResponseWriter, req *http.Request) {
 		writeNegotiated(api.Codecs, newGroupVersion, w, req, http.StatusOK, &UnregisteredAPIObject{"Undecodable"})
 	}))
-	// TODO: Uncomment when fix #19254
+	defer server.Close()
-	// defer server.Close()
 	// We send a 200 status code before we encode the object, so we expect OK, but there will
 	// still be an error object.  This seems ok, the alternative is to validate the object before
 	// encoding, but this really should never happen, so it's wasted compute for every API request.
@@ -2975,8 +2931,7 @@ func TestWriteRAWJSONMarshalError(t *testing.T) {
 	server := httptest.NewServer(http.HandlerFunc(func(w http.ResponseWriter, req *http.Request) {
 		writeRawJSON(http.StatusOK, &marshalError{errors.New("Undecodable")}, w)
 	}))
-	// TODO: Uncomment when fix #19254
+	defer server.Close()
-	// defer server.Close()
 	client := http.Client{}
 	resp, err := client.Get(server.URL)
 	if err != nil {
@@ -3002,8 +2957,7 @@ func TestCreateTimeout(t *testing.T) {
 		"foo": &storage,
 	})
 	server := httptest.NewServer(handler)
-	// TODO: Uncomment when fix #19254
+	defer server.Close()
-	// defer server.Close()
 
 	simple := &apiservertesting.Simple{Other: "foo"}
 	data, err := runtime.Encode(testCodec, simple)
@@ -3040,8 +2994,7 @@ func TestCORSAllowedOrigins(t *testing.T) {
 			allowedOriginRegexps, nil, nil, "true",
 		)
 		server := httptest.NewServer(handler)
-		// TODO: Uncomment when fix #19254
+		defer server.Close()
-		// defer server.Close()
 		client := http.Client{}
 
 		request, err := http.NewRequest("GET", server.URL+"/version", nil)
@@ -3094,8 +3047,7 @@ func TestCORSAllowedOrigins(t *testing.T) {
 func TestCreateChecksAPIVersion(t *testing.T) {
 	handler := handle(map[string]rest.Storage{"simple": &SimpleRESTStorage{}})
 	server := httptest.NewServer(handler)
-	// TODO: Uncomment when fix #19254
+	defer server.Close()
-	// defer server.Close()
 	client := http.Client{}
 
 	simple := &apiservertesting.Simple{}
@@ -3126,8 +3078,7 @@ func TestCreateChecksAPIVersion(t *testing.T) {
 func TestCreateDefaultsAPIVersion(t *testing.T) {
 	handler := handle(map[string]rest.Storage{"simple": &SimpleRESTStorage{}})
 	server := httptest.NewServer(handler)
-	// TODO: Uncomment when fix #19254
+	defer server.Close()
-	// defer server.Close()
 	client := http.Client{}
 
 	simple := &apiservertesting.Simple{}
@@ -3162,8 +3113,7 @@ func TestCreateDefaultsAPIVersion(t *testing.T) {
 func TestUpdateChecksAPIVersion(t *testing.T) {
 	handler := handle(map[string]rest.Storage{"simple": &SimpleRESTStorage{}})
 	server := httptest.NewServer(handler)
-	// TODO: Uncomment when fix #19254
+	defer server.Close()
-	// defer server.Close()
 	client := http.Client{}
 
 	simple := &apiservertesting.Simple{ObjectMeta: api.ObjectMeta{Name: "bar"}}
@@ -3270,8 +3220,7 @@ func TestXGSubresource(t *testing.T) {
 
 	handler := defaultAPIServer{mux, container}
 	server := httptest.NewServer(handler)
-	// TODO: Uncomment when fix #19254
+	defer server.Close()
-	// defer server.Close()
 
 	resp, err := http.Get(server.URL + "/" + prefix + "/" + testGroupVersion.Group + "/" + testGroupVersion.Version + "/namespaces/default/simple/" + itemID + "/subsimple")
 	if err != nil {

pkg/apiserver/handlers_test.go

@@ -112,8 +112,7 @@ func TestMaxInFlight(t *testing.T) {
 			}),
 		),
 	)
-	// TODO: Uncomment when fix #19254
+	defer server.Close()
-	// defer server.Close()
 
 	// These should hang, but not affect accounting.  use a query param match
 	for i := 0; i < AllowedInflightRequestsNo; i++ {
@@ -175,8 +174,7 @@ func TestReadOnly(t *testing.T) {
 			}
 		},
 	)))
-	// TODO: Uncomment when fix #19254
+	defer server.Close()
-	// defer server.Close()
 	for _, verb := range []string{"GET", "POST", "PUT", "DELETE", "CREATE"} {
 		req, err := http.NewRequest(verb, server.URL, nil)
 		if err != nil {
@@ -202,8 +200,7 @@ func TestTimeout(t *testing.T) {
 		func(*http.Request) (<-chan time.Time, string) {
 			return timeout, timeoutResp
 		}))
-	// TODO: Uncomment when fix #19254
+	defer ts.Close()
-	// defer ts.Close()
 
 	// No timeouts
 	sendResponse <- struct{}{}

pkg/apiserver/proxy_test.go

@@ -194,8 +194,7 @@ func TestProxyRequestContentLengthAndTransferEncoding(t *testing.T) {
 			// Write successful response
 			w.Write([]byte(successfulResponse))
 		}))
-		// TODO: Uncomment when fix #19254
+		defer downstreamServer.Close()
-		// defer downstreamServer.Close()
 
 		// Start the proxy server
 		serverURL, _ := url.Parse(downstreamServer.URL)
@@ -206,8 +205,7 @@ func TestProxyRequestContentLengthAndTransferEncoding(t *testing.T) {
 		}
 		namespaceHandler := handleNamespaced(map[string]rest.Storage{"foo": simpleStorage})
 		server := httptest.NewServer(namespaceHandler)
-		// TODO: Uncomment when fix #19254
+		defer server.Close()
-		// defer server.Close()
 
 		// Dial the proxy server
 		conn, err := net.Dial(server.Listener.Addr().Network(), server.Listener.Addr().String())
@@ -302,8 +300,7 @@ func TestProxy(t *testing.T) {
 			}
 			fmt.Fprint(out, item.respBody)
 		}))
-		// TODO: Uncomment when fix #19254
+		defer downstreamServer.Close()
-		// defer downstreamServer.Close()
 
 		serverURL, _ := url.Parse(downstreamServer.URL)
 		simpleStorage := &SimpleRESTStorage{
@@ -314,8 +311,7 @@ func TestProxy(t *testing.T) {
 
 		namespaceHandler := handleNamespaced(map[string]rest.Storage{"foo": simpleStorage})
 		namespaceServer := httptest.NewServer(namespaceHandler)
-		// TODO: Uncomment when fix #19254
+		defer namespaceServer.Close()
-		// defer namespaceServer.Close()
 
 		// test each supported URL pattern for finding the redirection resource in the proxy in a particular namespace
 		serverPatterns := []struct {
@@ -424,8 +420,7 @@ func TestProxyUpgrade(t *testing.T) {
 			ws.Read(body)
 			ws.Write([]byte("hello " + string(body)))
 		}))
-		// TODO: Uncomment when fix #19254
+		defer backendServer.Close()
-		// defer backendServer.Close()
 
 		serverURL, _ := url.Parse(backendServer.URL)
 		simpleStorage := &SimpleRESTStorage{
@@ -438,8 +433,7 @@ func TestProxyUpgrade(t *testing.T) {
 		namespaceHandler := handleNamespaced(map[string]rest.Storage{"foo": simpleStorage})
 
 		server := httptest.NewServer(namespaceHandler)
-		// TODO: Uncomment when fix #19254
+		defer server.Close()
-		// defer server.Close()
 
 		ws, err := websocket.Dial("ws://"+server.Listener.Addr().String()+"/"+prefix+"/"+newGroupVersion.Group+"/"+newGroupVersion.Version+"/proxy/namespaces/myns/foo/123", "", "http://127.0.0.1/")
 		if err != nil {
@@ -492,8 +486,7 @@ func TestRedirectOnMissingTrailingSlash(t *testing.T) {
 				t.Errorf("Unexpected query on url: %s, expected: %s", req.URL.RawQuery, item.query)
 			}
 		}))
-		// TODO: Uncomment when fix #19254
+		defer downstreamServer.Close()
-		// defer downstreamServer.Close()
 
 		serverURL, _ := url.Parse(downstreamServer.URL)
 		simpleStorage := &SimpleRESTStorage{
@@ -504,8 +497,7 @@ func TestRedirectOnMissingTrailingSlash(t *testing.T) {
 
 		handler := handleNamespaced(map[string]rest.Storage{"foo": simpleStorage})
 		server := httptest.NewServer(handler)
-		// TODO: Uncomment when fix #19254
+		defer server.Close()
-		// defer server.Close()
 
 		proxyTestPattern := "/" + prefix + "/" + newGroupVersion.Group + "/" + newGroupVersion.Version + "/proxy/namespaces/ns/foo/id" + item.path
 		req, err := http.NewRequest(

pkg/apiserver/watch_test.go

@@ -88,8 +88,7 @@ func TestWatchWebsocket(t *testing.T) {
 	_ = rest.Watcher(simpleStorage) // Give compile error if this doesn't work.
 	handler := handle(map[string]rest.Storage{"simples": simpleStorage})
 	server := httptest.NewServer(handler)
-	// TODO: Uncomment when fix #19254
+	defer server.Close()
-	// defer server.Close()
 
 	dest, _ := url.Parse(server.URL)
 	dest.Scheme = "ws" // Required by websocket, though the server never sees it.
@@ -142,8 +141,7 @@ func TestWatchRead(t *testing.T) {
 	_ = rest.Watcher(simpleStorage) // Give compile error if this doesn't work.
 	handler := handle(map[string]rest.Storage{"simples": simpleStorage})
 	server := httptest.NewServer(handler)
-	// TODO: Uncomment when fix #19254
+	defer server.Close()
-	// defer server.Close()
 
 	dest, _ := url.Parse(server.URL)
 	dest.Path = "/" + prefix + "/" + testGroupVersion.Group + "/" + testGroupVersion.Version + "/simples"
@@ -328,8 +326,7 @@ func TestWatchParamParsing(t *testing.T) {
 		"simpleroots": simpleStorage,
 	})
 	server := httptest.NewServer(handler)
-	// TODO: Uncomment when fix #19254
+	defer server.Close()
-	// defer server.Close()
 
 	dest, _ := url.Parse(server.URL)
 
@@ -436,8 +433,7 @@ func TestWatchProtocolSelection(t *testing.T) {
 	simpleStorage := &SimpleRESTStorage{}
 	handler := handle(map[string]rest.Storage{"simples": simpleStorage})
 	server := httptest.NewServer(handler)
-	// TODO: Uncomment when fix #19254
+	defer server.Close()
-	// defer server.Close()
 	defer server.CloseClientConnections()
 	client := http.Client{}
 
@@ -520,8 +516,7 @@ func TestWatchHTTPTimeout(t *testing.T) {
 	s := httptest.NewServer(http.HandlerFunc(func(w http.ResponseWriter, req *http.Request) {
 		watchServer.ServeHTTP(w, req)
 	}))
-	// TODO: Uncomment when fix #19254
+	defer s.Close()
-	// defer s.Close()
 
 	// Setup a client
 	dest, _ := url.Parse(s.URL)

pkg/client/cache/listwatch_test.go

@@ -96,8 +96,7 @@ func TestListWatchesCanList(t *testing.T) {
 			T:            t,
 		}
 		server := httptest.NewServer(&handler)
-		// TODO: Uncomment when fix #19254
+		defer server.Close()
-		// defer server.Close()
 		client := client.NewOrDie(&restclient.Config{Host: server.URL, ContentConfig: restclient.ContentConfig{GroupVersion: testapi.Default.GroupVersion()}})
 		lw := NewListWatchFromClient(client, item.resource, item.namespace, item.fieldSelector)
 		// This test merely tests that the correct request is made.
@@ -163,8 +162,7 @@ func TestListWatchesCanWatch(t *testing.T) {
 			T:            t,
 		}
 		server := httptest.NewServer(&handler)
-		// TODO: Uncomment when fix #19254
+		defer server.Close()
-		// defer server.Close()
 		client := client.NewOrDie(&restclient.Config{Host: server.URL, ContentConfig: restclient.ContentConfig{GroupVersion: testapi.Default.GroupVersion()}})
 		lw := NewListWatchFromClient(client, item.resource, item.namespace, item.fieldSelector)
 		// This test merely tests that the correct request is made.

pkg/client/chaosclient/chaosclient_test.go

@@ -42,8 +42,7 @@ func TestChaos(t *testing.T) {
 	server := httptest.NewServer(http.HandlerFunc(func(w http.ResponseWriter, _ *http.Request) {
 		w.WriteHeader(http.StatusOK)
 	}))
-	// TODO: Uncomment when fix #19254
+	defer server.Close()
-	// defer server.Close()
 	client := http.Client{
 		Transport: NewChaosRoundTripper(http.DefaultTransport, TestLogChaos{t}, ErrSimulatedConnectionResetByPeer),
 	}
@@ -60,8 +59,7 @@ func TestPartialChaos(t *testing.T) {
 	server := httptest.NewServer(http.HandlerFunc(func(w http.ResponseWriter, _ *http.Request) {
 		w.WriteHeader(http.StatusOK)
 	}))
-	// TODO: Uncomment when fix #19254
+	defer server.Close()
-	// defer server.Close()
 	seed := NewSeed(1)
 	client := http.Client{
 		Transport: NewChaosRoundTripper(

pkg/client/restclient/client_test.go

@@ -42,8 +42,7 @@ func TestDoRequestSuccess(t *testing.T) {
 		T:            t,
 	}
 	testServer := httptest.NewServer(&fakeHandler)
-	// TODO: Uncomment when fix #19254
+	defer testServer.Close()
-	// defer testServer.Close()
 	c, err := RESTClientFor(&Config{
 		Host: testServer.URL,
 		ContentConfig: ContentConfig{
@@ -88,8 +87,7 @@ func TestDoRequestFailed(t *testing.T) {
 		T:            t,
 	}
 	testServer := httptest.NewServer(&fakeHandler)
-	// TODO: Uncomment when fix #19254
+	defer testServer.Close()
-	// defer testServer.Close()
 	c, err := RESTClientFor(&Config{
 		Host: testServer.URL,
 		ContentConfig: ContentConfig{
@@ -127,8 +125,7 @@ func TestDoRequestCreated(t *testing.T) {
 		T:            t,
 	}
 	testServer := httptest.NewServer(&fakeHandler)
-	// TODO: Uncomment when fix #19254
+	defer testServer.Close()
-	// defer testServer.Close()
 	c, err := RESTClientFor(&Config{
 		Host: testServer.URL,
 		ContentConfig: ContentConfig{

pkg/client/restclient/request_test.go

@@ -723,8 +723,7 @@ func TestDoRequestNewWay(t *testing.T) {
 		T:            t,
 	}
 	testServer := httptest.NewServer(&fakeHandler)
-	// TODO: Uncomment when fix #19254
+	defer testServer.Close()
-	// defer testServer.Close()
 	c := testRESTClient(t, testServer)
 	obj, err := c.Verb("POST").
 		Prefix("foo", "bar").
@@ -760,8 +759,7 @@ func TestBackoffLifecycle(t *testing.T) {
 			return
 		}
 	}))
-	// TODO: Uncomment when fix #19254
+	defer testServer.Close()
-	// defer testServer.Close()
 	c := testRESTClient(t, testServer)
 
 	// Test backoff recovery and increase.  This correlates to the constants
@@ -806,8 +804,7 @@ func TestCheckRetryClosesBody(t *testing.T) {
 		w.Header().Set("Retry-After", "0")
 		w.WriteHeader(apierrors.StatusTooManyRequests)
 	}))
-	// TODO: Uncomment when fix #19254
+	defer testServer.Close()
-	// defer testServer.Close()
 
 	c := testRESTClient(t, testServer)
 	_, err := c.Verb("POST").
@@ -839,8 +836,7 @@ func TestCheckRetryHandles429And5xx(t *testing.T) {
 		w.WriteHeader([]int{apierrors.StatusTooManyRequests, 500, 501, 504}[count])
 		count++
 	}))
-	// TODO: Uncomment when fix #19254
+	defer testServer.Close()
-	// defer testServer.Close()
 
 	c := testRESTClient(t, testServer)
 	_, err := c.Verb("POST").
@@ -869,8 +865,7 @@ func BenchmarkCheckRetryClosesBody(b *testing.B) {
 		w.Header().Set("Retry-After", "0")
 		w.WriteHeader(apierrors.StatusTooManyRequests)
 	}))
-	// TODO: Uncomment when fix #19254
+	defer testServer.Close()
-	// defer testServer.Close()
 
 	c := testRESTClient(b, testServer)
 	r := c.Verb("POST").
@@ -901,8 +896,7 @@ func TestDoRequestNewWayReader(t *testing.T) {
 		T:            t,
 	}
 	testServer := httptest.NewServer(&fakeHandler)
-	// TODO: Uncomment when fix #19254
+	defer testServer.Close()
-	// defer testServer.Close()
 	c := testRESTClient(t, testServer)
 	obj, err := c.Verb("POST").
 		Resource("bar").
@@ -942,8 +936,7 @@ func TestDoRequestNewWayObj(t *testing.T) {
 		T:            t,
 	}
 	testServer := httptest.NewServer(&fakeHandler)
-	// TODO: Uncomment when fix #19254
+	defer testServer.Close()
-	// defer testServer.Close()
 	c := testRESTClient(t, testServer)
 	obj, err := c.Verb("POST").
 		Suffix("baz").
@@ -998,8 +991,7 @@ func TestDoRequestNewWayFile(t *testing.T) {
 		T:            t,
 	}
 	testServer := httptest.NewServer(&fakeHandler)
-	// TODO: Uncomment when fix #19254
+	defer testServer.Close()
-	// defer testServer.Close()
 	c := testRESTClient(t, testServer)
 	wasCreated := true
 	obj, err := c.Verb("POST").
@@ -1044,8 +1036,7 @@ func TestWasCreated(t *testing.T) {
 		T:            t,
 	}
 	testServer := httptest.NewServer(&fakeHandler)
-	// TODO: Uncomment when fix #19254
+	defer testServer.Close()
-	// defer testServer.Close()
 	c := testRESTClient(t, testServer)
 	wasCreated := false
 	obj, err := c.Verb("PUT").
@@ -1250,8 +1241,7 @@ func TestWatch(t *testing.T) {
 			flusher.Flush()
 		}
 	}))
-	// TODO: Uncomment when fix #19254
+	defer testServer.Close()
-	// defer testServer.Close()
 
 	s := testRESTClient(t, testServer)
 	watching, err := s.Get().Prefix("path/to/watch/thing").Watch()
@@ -1291,8 +1281,7 @@ func TestStream(t *testing.T) {
 		w.Write([]byte(expectedBody))
 		flusher.Flush()
 	}))
-	// TODO: Uncomment when fix #19254
+	defer testServer.Close()
-	// defer testServer.Close()
 
 	s := testRESTClient(t, testServer)
 	readCloser, err := s.Get().Prefix("path/to/stream/thing").Stream()

pkg/client/typed/discovery/client_test.go

@@ -47,8 +47,7 @@ func TestGetServerVersion(t *testing.T) {
 		w.WriteHeader(http.StatusOK)
 		w.Write(output)
 	}))
-	// TODO: Uncomment when fix #19254
+	defer server.Close()
-	// defer server.Close()
 	client := NewDiscoveryClientForConfigOrDie(&restclient.Config{Host: server.URL})
 
 	got, err := client.ServerVersion()
@@ -83,8 +82,7 @@ func TestGetServerGroupsWithV1Server(t *testing.T) {
 		w.WriteHeader(http.StatusOK)
 		w.Write(output)
 	}))
-	// TODO: Uncomment when fix #19254
+	defer server.Close()
-	// defer server.Close()
 	client := NewDiscoveryClientForConfigOrDie(&restclient.Config{Host: server.URL})
 	// ServerGroups should not return an error even if server returns error at /api and /apis
 	apiGroupList, err := client.ServerGroups()
@@ -120,8 +118,7 @@ func TestGetServerResourcesWithV1Server(t *testing.T) {
 		w.WriteHeader(http.StatusOK)
 		w.Write(output)
 	}))
-	// TODO: Uncomment when fix #19254
+	defer server.Close()
-	// defer server.Close()
 	client := NewDiscoveryClientForConfigOrDie(&restclient.Config{Host: server.URL})
 	// ServerResources should not return an error even if server returns error at /api/v1.
 	resourceMap, err := client.ServerResources()
@@ -213,8 +210,7 @@ func TestGetServerResources(t *testing.T) {
 		w.WriteHeader(http.StatusOK)
 		w.Write(output)
 	}))
-	// TODO: Uncomment when fix #19254
+	defer server.Close()
-	// defer server.Close()
 	client := NewDiscoveryClientForConfigOrDie(&restclient.Config{Host: server.URL})
 	for _, test := range tests {
 		got, err := client.ServerResourcesForGroupVersion(test.request)
@@ -275,8 +271,7 @@ func TestGetSwaggerSchema(t *testing.T) {
 	if err != nil {
 		t.Errorf("unexpected encoding error: %v", err)
 	}
-	// TODO: Uncomment when fix #19254
+	defer server.Close()
-	// defer server.Close()
 
 	client := NewDiscoveryClientForConfigOrDie(&restclient.Config{Host: server.URL})
 	got, err := client.SwaggerSchema(v1.SchemeGroupVersion)
@@ -295,8 +290,7 @@ func TestGetSwaggerSchemaFail(t *testing.T) {
 	if err != nil {
 		t.Errorf("unexpected encoding error: %v", err)
 	}
-	// TODO: Uncomment when fix #19254
+	defer server.Close()
-	// defer server.Close()
 
 	client := NewDiscoveryClientForConfigOrDie(&restclient.Config{Host: server.URL})
 	got, err := client.SwaggerSchema(unversioned.GroupVersion{Group: "api.group", Version: "v4"})

pkg/client/unversioned/containerinfo_test.go

@@ -70,8 +70,7 @@ func testHTTPContainerInfoGetter(
 			t.Fatal(err)
 		}
 	}))
-	// TODO: Uncomment when fix #19254
+	defer ts.Close()
-	// defer ts.Close()
 	hostURL, err := url.Parse(ts.URL)
 	if err != nil {
 		t.Fatal(err)
@@ -172,8 +171,7 @@ func TestHTTPGetMachineInfo(t *testing.T) {
 			t.Fatal(err)
 		}
 	}))
-	// TODO: Uncomment when fix #19254
+	defer ts.Close()
-	// defer ts.Close()
 	hostURL, err := url.Parse(ts.URL)
 	if err != nil {
 		t.Fatal(err)

pkg/client/unversioned/helper_test.go

@@ -124,8 +124,7 @@ func TestHelperGetServerAPIVersions(t *testing.T) {
 		w.WriteHeader(http.StatusOK)
 		w.Write(output)
 	}))
-	// TODO: Uncomment when fix #19254
+	defer server.Close()
-	// defer server.Close()
 	got, err := restclient.ServerAPIVersions(&restclient.Config{Host: server.URL, ContentConfig: restclient.ContentConfig{GroupVersion: &unversioned.GroupVersion{Group: "invalid version", Version: "one"}, Codec: testapi.Default.Codec()}})
 	if err != nil {
 		t.Fatalf("unexpected encoding error: %v", err)

pkg/client/unversioned/portforward/portforward_test.go

@@ -320,8 +320,7 @@ func TestForwardPorts(t *testing.T) {
 			clientConn, err := net.Dial("tcp", fmt.Sprintf("localhost:%d", port))
 			if err != nil {
 				t.Errorf("%s: error dialing %d: %s", testName, port, err)
-				// TODO: Uncomment when fix #19254
+				server.Close()
-				// server.Close()
 				continue
 			}
 			defer clientConn.Close()
@@ -329,28 +328,24 @@ func TestForwardPorts(t *testing.T) {
 			n, err := clientConn.Write([]byte(data))
 			if err != nil && err != io.EOF {
 				t.Errorf("%s: Error sending data '%s': %s", testName, data, err)
-				// TODO: Uncomment when fix #19254
+				server.Close()
-				// server.Close()
 				continue
 			}
 			if n == 0 {
 				t.Errorf("%s: unexpected write of 0 bytes", testName)
-				// TODO: Uncomment when fix #19254
+				server.Close()
-				// server.Close()
 				continue
 			}
 			b := make([]byte, 4)
 			n, err = clientConn.Read(b)
 			if err != nil && err != io.EOF {
 				t.Errorf("%s: Error reading data: %s", testName, err)
-				// TODO: Uncomment when fix #19254
+				server.Close()
-				// server.Close()
 				continue
 			}
 			if !bytes.Equal([]byte(test.serverSends[port]), b) {
 				t.Errorf("%s: expected to read '%s', got '%s'", testName, test.serverSends[port], b)
-				// TODO: Uncomment when fix #19254
+				server.Close()
-				// server.Close()
 				continue
 			}
 		}
@@ -362,16 +357,14 @@ func TestForwardPorts(t *testing.T) {
 		if err != nil {
 			t.Errorf("%s: unexpected error: %s", testName, err)
 		}
-		// TODO: Uncomment when fix #19254
+		server.Close()
-		// server.Close()
 	}
 
 }
 
 func TestForwardPortsReturnsErrorWhenAllBindsFailed(t *testing.T) {
 	server := httptest.NewServer(fakePortForwardServer(t, "allBindsFailed", nil, nil))
-	// TODO: Uncomment when fix #19254
+	defer server.Close()
-	// defer server.Close()
 
 	url, _ := url.Parse(server.URL)
 	exec, err := remotecommand.NewExecutor(&restclient.Config{}, "POST", url)

pkg/client/unversioned/remotecommand/remotecommand_test.go

@@ -257,15 +257,13 @@ func TestStream(t *testing.T) {
 					}
 				}
 
-				// TODO: Uncomment when fix #19254
+				server.Close()
-				// server.Close()
 				continue
 			}
 
 			if hasErr {
 				t.Errorf("%s: unexpected error: %v", name, err)
-				// TODO: Uncomment when fix #19254
+				server.Close()
-				// server.Close()
 				continue
 			}
 
@@ -281,8 +279,7 @@ func TestStream(t *testing.T) {
 				}
 			}
 
-			// TODO: Uncomment when fix #19254
+			server.Close()
-			// server.Close()
 		}
 	}
 }

pkg/client/unversioned/testclient/simple/simple_testclient.go

@@ -110,8 +110,7 @@ func (c *Client) Setup(t *testing.T) *Client {
 
 func (c *Client) Close() {
 	if c.server != nil {
-		// TODO: Uncomment when fix #19254
+		c.server.Close()
-		// c.server.Close()
 	}
 }
 

pkg/cloudprovider/providers/mesos/client_test.go

@@ -214,10 +214,8 @@ func Test_parseMesosState(t *testing.T) {
 func Test_listSlaves(t *testing.T) {
 	defer log.Flush()
 	md := FakeMasterDetector{}
-	// TODO: Uncomment next two lines and remove third line when fix #19254
+	httpServer, httpClient, httpTransport := makeHttpMocks()
-	// defer httpServer.Close()
+	defer httpServer.Close()
-	// httpServer, httpClient, httpTransport := makeHttpMocks()
-	_, httpClient, httpTransport := makeHttpMocks()
 
 	cacheTTL := 500 * time.Millisecond
 	mesosClient, err := createMesosClient(md, httpClient, httpTransport, cacheTTL)
@@ -255,10 +253,8 @@ func Test_listSlaves(t *testing.T) {
 func Test_clusterName(t *testing.T) {
 	defer log.Flush()
 	md := FakeMasterDetector{}
-	// TODO: Uncomment next two lines and remove third line when fix #19254
+	httpServer, httpClient, httpTransport := makeHttpMocks()
-	// defer httpServer.Close()
+	defer httpServer.Close()
-	// httpServer, httpClient, httpTransport := makeHttpMocks()
-	_, httpClient, httpTransport := makeHttpMocks()
 	cacheTTL := 500 * time.Millisecond
 	mesosClient, err := createMesosClient(md, httpClient, httpTransport, cacheTTL)
 

pkg/controller/controller_utils_test.go

@@ -242,8 +242,7 @@ func TestCreatePods(t *testing.T) {
 		ResponseBody: string(body),
 	}
 	testServer := httptest.NewServer(&fakeHandler)
-	// TODO: Uncomment when fix #19254
+	defer testServer.Close()
-	// defer testServer.Close()
 	clientset := clientset.NewForConfigOrDie(&restclient.Config{Host: testServer.URL, ContentConfig: restclient.ContentConfig{GroupVersion: testapi.Default.GroupVersion()}})
 
 	podControl := RealPodControl{

pkg/controller/endpoint/endpoints_controller_test.go

@@ -105,8 +105,7 @@ func TestSyncEndpointsItemsPreserveNoSelector(t *testing.T) {
 				Ports:     []api.EndpointPort{{Port: 1000}},
 			}},
 		}})
-	// TODO: Uncomment when fix #19254
+	defer testServer.Close()
-	// defer testServer.Close()
 	client := clientset.NewForConfigOrDie(&restclient.Config{Host: testServer.URL, ContentConfig: restclient.ContentConfig{GroupVersion: testapi.Default.GroupVersion()}})
 	endpoints := NewEndpointControllerFromClient(client, controller.NoResyncPeriodFunc)
 	endpoints.podStoreSynced = alwaysReady
@@ -139,8 +138,7 @@ func TestCheckLeftoverEndpoints(t *testing.T) {
 				}},
 			}},
 		}})
-	// TODO: Uncomment when fix #19254
+	defer testServer.Close()
-	// defer testServer.Close()
 	client := clientset.NewForConfigOrDie(&restclient.Config{Host: testServer.URL, ContentConfig: restclient.ContentConfig{GroupVersion: testapi.Default.GroupVersion()}})
 	endpoints := NewEndpointControllerFromClient(client, controller.NoResyncPeriodFunc)
 	endpoints.podStoreSynced = alwaysReady
@@ -169,8 +167,7 @@ func TestSyncEndpointsProtocolTCP(t *testing.T) {
 				Ports:     []api.EndpointPort{{Port: 1000, Protocol: "TCP"}},
 			}},
 		}})
-	// TODO: Uncomment when fix #19254
+	defer testServer.Close()
-	// defer testServer.Close()
 	client := clientset.NewForConfigOrDie(&restclient.Config{Host: testServer.URL, ContentConfig: restclient.ContentConfig{GroupVersion: testapi.Default.GroupVersion()}})
 	endpoints := NewEndpointControllerFromClient(client, controller.NoResyncPeriodFunc)
 	endpoints.podStoreSynced = alwaysReady
@@ -213,8 +210,7 @@ func TestSyncEndpointsProtocolUDP(t *testing.T) {
 				Ports:     []api.EndpointPort{{Port: 1000, Protocol: "UDP"}},
 			}},
 		}})
-	// TODO: Uncomment when fix #19254
+	defer testServer.Close()
-	// defer testServer.Close()
 	client := clientset.NewForConfigOrDie(&restclient.Config{Host: testServer.URL, ContentConfig: restclient.ContentConfig{GroupVersion: testapi.Default.GroupVersion()}})
 	endpoints := NewEndpointControllerFromClient(client, controller.NoResyncPeriodFunc)
 	endpoints.podStoreSynced = alwaysReady
@@ -253,8 +249,7 @@ func TestSyncEndpointsItemsEmptySelectorSelectsAll(t *testing.T) {
 			},
 			Subsets: []api.EndpointSubset{},
 		}})
-	// TODO: Uncomment when fix #19254
+	defer testServer.Close()
-	// defer testServer.Close()
 	client := clientset.NewForConfigOrDie(&restclient.Config{Host: testServer.URL, ContentConfig: restclient.ContentConfig{GroupVersion: testapi.Default.GroupVersion()}})
 	endpoints := NewEndpointControllerFromClient(client, controller.NoResyncPeriodFunc)
 	endpoints.podStoreSynced = alwaysReady
@@ -292,8 +287,7 @@ func TestSyncEndpointsItemsEmptySelectorSelectsAllNotReady(t *testing.T) {
 			},
 			Subsets: []api.EndpointSubset{},
 		}})
-	// TODO: Uncomment when fix #19254
+	defer testServer.Close()
-	// defer testServer.Close()
 	client := clientset.NewForConfigOrDie(&restclient.Config{Host: testServer.URL, ContentConfig: restclient.ContentConfig{GroupVersion: testapi.Default.GroupVersion()}})
 	endpoints := NewEndpointControllerFromClient(client, controller.NoResyncPeriodFunc)
 	endpoints.podStoreSynced = alwaysReady
@@ -331,8 +325,7 @@ func TestSyncEndpointsItemsEmptySelectorSelectsAllMixed(t *testing.T) {
 			},
 			Subsets: []api.EndpointSubset{},
 		}})
-	// TODO: Uncomment when fix #19254
+	defer testServer.Close()
-	// defer testServer.Close()
 	client := clientset.NewForConfigOrDie(&restclient.Config{Host: testServer.URL, ContentConfig: restclient.ContentConfig{GroupVersion: testapi.Default.GroupVersion()}})
 	endpoints := NewEndpointControllerFromClient(client, controller.NoResyncPeriodFunc)
 	endpoints.podStoreSynced = alwaysReady
@@ -374,8 +367,7 @@ func TestSyncEndpointsItemsPreexisting(t *testing.T) {
 				Ports:     []api.EndpointPort{{Port: 1000}},
 			}},
 		}})
-	// TODO: Uncomment when fix #19254
+	defer testServer.Close()
-	// defer testServer.Close()
 	client := clientset.NewForConfigOrDie(&restclient.Config{Host: testServer.URL, ContentConfig: restclient.ContentConfig{GroupVersion: testapi.Default.GroupVersion()}})
 	endpoints := NewEndpointControllerFromClient(client, controller.NoResyncPeriodFunc)
 	endpoints.podStoreSynced = alwaysReady
@@ -416,8 +408,7 @@ func TestSyncEndpointsItemsPreexistingIdentical(t *testing.T) {
 				Ports:     []api.EndpointPort{{Port: 8080, Protocol: "TCP"}},
 			}},
 		}})
-	// TODO: Uncomment when fix #19254
+	defer testServer.Close()
-	// defer testServer.Close()
 	client := clientset.NewForConfigOrDie(&restclient.Config{Host: testServer.URL, ContentConfig: restclient.ContentConfig{GroupVersion: testapi.Default.GroupVersion()}})
 	endpoints := NewEndpointControllerFromClient(client, controller.NoResyncPeriodFunc)
 	endpoints.podStoreSynced = alwaysReady
@@ -437,8 +428,7 @@ func TestSyncEndpointsItems(t *testing.T) {
 	ns := "other"
 	testServer, endpointsHandler := makeTestServer(t, ns,
 		serverResponse{http.StatusOK, &api.Endpoints{}})
-	// TODO: Uncomment when fix #19254
+	defer testServer.Close()
-	// defer testServer.Close()
 	client := clientset.NewForConfigOrDie(&restclient.Config{Host: testServer.URL, ContentConfig: restclient.ContentConfig{GroupVersion: testapi.Default.GroupVersion()}})
 	endpoints := NewEndpointControllerFromClient(client, controller.NoResyncPeriodFunc)
 	endpoints.podStoreSynced = alwaysReady
@@ -481,8 +471,7 @@ func TestSyncEndpointsItemsWithLabels(t *testing.T) {
 	ns := "other"
 	testServer, endpointsHandler := makeTestServer(t, ns,
 		serverResponse{http.StatusOK, &api.Endpoints{}})
-	// TODO: Uncomment when fix #19254
+	defer testServer.Close()
-	// defer testServer.Close()
 	client := clientset.NewForConfigOrDie(&restclient.Config{Host: testServer.URL, ContentConfig: restclient.ContentConfig{GroupVersion: testapi.Default.GroupVersion()}})
 	endpoints := NewEndpointControllerFromClient(client, controller.NoResyncPeriodFunc)
 	endpoints.podStoreSynced = alwaysReady
@@ -543,8 +532,7 @@ func TestSyncEndpointsItemsPreexistingLabelsChange(t *testing.T) {
 				Ports:     []api.EndpointPort{{Port: 1000}},
 			}},
 		}})
-	// TODO: Uncomment when fix #19254
+	defer testServer.Close()
-	// defer testServer.Close()
 	client := clientset.NewForConfigOrDie(&restclient.Config{Host: testServer.URL, ContentConfig: restclient.ContentConfig{GroupVersion: testapi.Default.GroupVersion()}})
 	endpoints := NewEndpointControllerFromClient(client, controller.NoResyncPeriodFunc)
 	endpoints.podStoreSynced = alwaysReady

pkg/controller/replication/replication_controller_test.go

@@ -222,8 +222,7 @@ func TestStatusUpdatesWithoutReplicasChange(t *testing.T) {
 		ResponseBody: "",
 	}
 	testServer := httptest.NewServer(&fakeHandler)
-	// TODO: Uncomment when fix #19254
+	defer testServer.Close()
-	// defer testServer.Close()
 	c := clientset.NewForConfigOrDie(&restclient.Config{Host: testServer.URL, ContentConfig: restclient.ContentConfig{GroupVersion: testapi.Default.GroupVersion()}})
 	manager := NewReplicationManagerFromClient(c, controller.NoResyncPeriodFunc, BurstReplicas, 0)
 	manager.podStoreSynced = alwaysReady
@@ -264,8 +263,7 @@ func TestControllerUpdateReplicas(t *testing.T) {
 		ResponseBody: "",
 	}
 	testServer := httptest.NewServer(&fakeHandler)
-	// TODO: Uncomment when fix #19254
+	defer testServer.Close()
-	// defer testServer.Close()
 	c := clientset.NewForConfigOrDie(&restclient.Config{Host: testServer.URL, ContentConfig: restclient.ContentConfig{GroupVersion: testapi.Default.GroupVersion()}})
 	manager := NewReplicationManagerFromClient(c, controller.NoResyncPeriodFunc, BurstReplicas, 0)
 	manager.podStoreSynced = alwaysReady
@@ -309,8 +307,7 @@ func TestSyncReplicationControllerDormancy(t *testing.T) {
 		ResponseBody: "{}",
 	}
 	testServer := httptest.NewServer(&fakeHandler)
-	// TODO: Uncomment when fix #19254
+	defer testServer.Close()
-	// defer testServer.Close()
 	c := clientset.NewForConfigOrDie(&restclient.Config{Host: testServer.URL, ContentConfig: restclient.ContentConfig{GroupVersion: testapi.Default.GroupVersion()}})
 	fakePodControl := controller.FakePodControl{}
 	manager := NewReplicationManagerFromClient(c, controller.NoResyncPeriodFunc, BurstReplicas, 0)
@@ -564,8 +561,7 @@ func TestControllerUpdateRequeue(t *testing.T) {
 		ResponseBody: "",
 	}
 	testServer := httptest.NewServer(&fakeHandler)
-	// TODO: Uncomment when fix #19254
+	defer testServer.Close()
-	// defer testServer.Close()
 
 	c := clientset.NewForConfigOrDie(&restclient.Config{Host: testServer.URL, ContentConfig: restclient.ContentConfig{GroupVersion: testapi.Default.GroupVersion()}})
 	manager := NewReplicationManagerFromClient(c, controller.NoResyncPeriodFunc, BurstReplicas, 0)

pkg/credentialprovider/gcp/jwt_test.go

@@ -77,8 +77,7 @@ func TestJwtProvider(t *testing.T) {
 			"expires_in": 3600
 		}`, token)))
 	}))
-	// TODO: Uncomment when fix #19254
+	defer ts.Close()
-	// defer ts.Close()
 
 	file, err := ioutil.TempFile(os.TempDir(), "temp")
 	if err != nil {

pkg/credentialprovider/gcp/metadata_test.go

@@ -57,8 +57,7 @@ func TestDockerKeyringFromGoogleDockerConfigMetadata(t *testing.T) {
 			w.WriteHeader(http.StatusNotFound)
 		}
 	}))
-	// TODO: Uncomment when fix #19254
+	defer server.Close()
-	// defer server.Close()
 
 	// Make a transport that reroutes all traffic to the example server
 	transport := utilnet.SetTransportDefaults(&http.Transport{
@@ -130,8 +129,7 @@ func TestDockerKeyringFromGoogleDockerConfigMetadataUrl(t *testing.T) {
 			w.WriteHeader(http.StatusNotFound)
 		}
 	}))
-	// TODO: Uncomment when fix #19254
+	defer server.Close()
-	// defer server.Close()
 
 	// Make a transport that reroutes all traffic to the example server
 	transport := utilnet.SetTransportDefaults(&http.Transport{
@@ -204,8 +202,7 @@ func TestContainerRegistryBasics(t *testing.T) {
 			w.WriteHeader(http.StatusNotFound)
 		}
 	}))
-	// TODO: Uncomment when fix #19254
+	defer server.Close()
-	// defer server.Close()
 
 	// Make a transport that reroutes all traffic to the example server
 	transport := utilnet.SetTransportDefaults(&http.Transport{
@@ -261,8 +258,7 @@ func TestContainerRegistryNoStorageScope(t *testing.T) {
 			w.WriteHeader(http.StatusNotFound)
 		}
 	}))
-	// TODO: Uncomment when fix #19254
+	defer server.Close()
-	// defer server.Close()
 
 	// Make a transport that reroutes all traffic to the example server
 	transport := utilnet.SetTransportDefaults(&http.Transport{
@@ -295,8 +291,7 @@ func TestComputePlatformScopeSubstitutesStorageScope(t *testing.T) {
 			w.WriteHeader(http.StatusNotFound)
 		}
 	}))
-	// TODO: Uncomment when fix #19254
+	defer server.Close()
-	// defer server.Close()
 
 	// Make a transport that reroutes all traffic to the example server
 	transport := utilnet.SetTransportDefaults(&http.Transport{
@@ -318,8 +313,7 @@ func TestAllProvidersNoMetadata(t *testing.T) {
 	server := httptest.NewServer(http.HandlerFunc(func(w http.ResponseWriter, r *http.Request) {
 		w.WriteHeader(http.StatusNotFound)
 	}))
-	// TODO: Uncomment when fix #19254
+	defer server.Close()
-	// defer server.Close()
 
 	// Make a transport that reroutes all traffic to the example server
 	transport := utilnet.SetTransportDefaults(&http.Transport{

pkg/kubectl/proxy_server_test.go

@@ -205,8 +205,7 @@ func TestFileServing(t *testing.T) {
 	const prefix = "/foo/"
 	handler := newFileHandler(prefix, dir)
 	server := httptest.NewServer(handler)
-	// TODO: Uncomment when fix #19254
+	defer server.Close()
-	// defer server.Close()
 
 	url := server.URL + prefix + fname
 	res, err := http.Get(url)
@@ -236,8 +235,7 @@ func TestAPIRequests(t *testing.T) {
 		}
 		fmt.Fprintf(w, "%s %s %s", r.Method, r.RequestURI, string(b))
 	}))
-	// TODO: Uncomment when fix #19254
+	defer ts.Close()
-	// defer ts.Close()
 
 	// httptest.NewServer should always generate a valid URL.
 	target, _ := url.Parse(ts.URL)
@@ -273,8 +271,7 @@ func TestPathHandling(t *testing.T) {
 	ts := httptest.NewServer(http.HandlerFunc(func(w http.ResponseWriter, r *http.Request) {
 		fmt.Fprint(w, r.URL.Path)
 	}))
-	// TODO: Uncomment when fix #19254
+	defer ts.Close()
-	// defer ts.Close()
 
 	table := []struct {
 		prefix     string
@@ -304,8 +301,7 @@ func TestPathHandling(t *testing.T) {
 				t.Fatalf("%#v: %v", item, err)
 			}
 			pts := httptest.NewServer(p.handler)
-			// TODO: Uncomment when fix #19254
+			defer pts.Close()
-			// defer pts.Close()
 
 			r, err := http.Get(pts.URL + item.reqPath)
 			if err != nil {

pkg/kubectl/resource/builder_test.go

@@ -452,8 +452,7 @@ func TestNamespaceOverride(t *testing.T) {
 		w.WriteHeader(http.StatusOK)
 		w.Write([]byte(runtime.EncodeOrDie(testapi.Default.Codec(), &api.Pod{ObjectMeta: api.ObjectMeta{Namespace: "foo", Name: "test"}})))
 	}))
-	// TODO: Uncomment when fix #19254
+	defer s.Close()
-	// defer s.Close()
 
 	b := NewBuilder(testapi.Default.RESTMapper(), api.Scheme, fakeClient(), testapi.Default.Codec()).
 		FilenameParam(false, false, s.URL).
@@ -484,8 +483,7 @@ func TestURLBuilder(t *testing.T) {
 		w.Write([]byte(runtime.EncodeOrDie(testapi.Default.Codec(), &api.Pod{ObjectMeta: api.ObjectMeta{Namespace: "foo", Name: "test"}})))
 		w.Write([]byte(runtime.EncodeOrDie(testapi.Default.Codec(), &api.Pod{ObjectMeta: api.ObjectMeta{Namespace: "foo", Name: "test1"}})))
 	}))
-	// TODO: Uncomment when fix #19254
+	defer s.Close()
-	// defer s.Close()
 
 	b := NewBuilder(testapi.Default.RESTMapper(), api.Scheme, fakeClient(), testapi.Default.Codec()).
 		FilenameParam(false, false, s.URL).
@@ -514,8 +512,7 @@ func TestURLBuilderRequireNamespace(t *testing.T) {
 		w.WriteHeader(http.StatusOK)
 		w.Write([]byte(runtime.EncodeOrDie(testapi.Default.Codec(), &api.Pod{ObjectMeta: api.ObjectMeta{Namespace: "foo", Name: "test"}})))
 	}))
-	// TODO: Uncomment when fix #19254
+	defer s.Close()
-	// defer s.Close()
 
 	b := NewBuilder(testapi.Default.RESTMapper(), api.Scheme, fakeClient(), testapi.Default.Codec()).
 		FilenameParam(false, false, s.URL).

pkg/kubelet/client/kubelet_client_test.go

@@ -39,8 +39,7 @@ func TestHTTPKubeletClient(t *testing.T) {
 		ResponseBody: string(body),
 	}
 	testServer := httptest.NewServer(&fakeHandler)
-	// TODO: Uncomment when fix #19254
+	defer testServer.Close()
-	// defer testServer.Close()
 
 	if _, err := url.Parse(testServer.URL); err != nil {
 		t.Errorf("unexpected error: %v", err)

pkg/kubelet/config/http_test.go

@@ -111,8 +111,7 @@ func TestExtractInvalidPods(t *testing.T) {
 			ResponseBody: string(data),
 		}
 		testServer := httptest.NewServer(&fakeHandler)
-		// TODO: Uncomment when fix #19254
+		defer testServer.Close()
-		// defer testServer.Close()
 		ch := make(chan interface{}, 1)
 		c := sourceURL{testServer.URL, http.Header{}, "localhost", ch, nil, 0, http.DefaultClient}
 		if err := c.extractFromURL(); err == nil {
@@ -290,8 +289,7 @@ func TestExtractPodsFromHTTP(t *testing.T) {
 			ResponseBody: string(data),
 		}
 		testServer := httptest.NewServer(&fakeHandler)
-		// TODO: Uncomment when fix #19254
+		defer testServer.Close()
-		// defer testServer.Close()
 		ch := make(chan interface{}, 1)
 		c := sourceURL{testServer.URL, http.Header{}, hostname, ch, nil, 0, http.DefaultClient}
 		if err := c.extractFromURL(); err != nil {
@@ -336,8 +334,7 @@ func TestURLWithHeader(t *testing.T) {
 		ResponseBody: string(data),
 	}
 	testServer := httptest.NewServer(&fakeHandler)
-	// TODO: Uncomment when fix #19254
+	defer testServer.Close()
-	// defer testServer.Close()
 	ch := make(chan interface{}, 1)
 	header := make(http.Header)
 	header.Set("Metadata-Flavor", "Google")

pkg/master/master_test.go

@@ -587,8 +587,7 @@ func testInstallThirdPartyAPIListVersion(t *testing.T, version string) {
 	for _, test := range tests {
 		func() {
 			master, etcdserver, server, assert := initThirdParty(t, version)
-			// TODO: Uncomment when fix #19254
+			defer server.Close()
-			// defer server.Close()
 			defer etcdserver.Terminate(t)
 
 			if test.items != nil {
@@ -698,8 +697,7 @@ func TestInstallThirdPartyAPIGet(t *testing.T) {
 
 func testInstallThirdPartyAPIGetVersion(t *testing.T, version string) {
 	master, etcdserver, server, assert := initThirdParty(t, version)
-	// TODO: Uncomment when fix #19254
+	defer server.Close()
-	// defer server.Close()
 	defer etcdserver.Terminate(t)
 
 	expectedObj := Foo{
@@ -746,8 +744,7 @@ func TestInstallThirdPartyAPIPost(t *testing.T) {
 
 func testInstallThirdPartyAPIPostForVersion(t *testing.T, version string) {
 	master, etcdserver, server, assert := initThirdParty(t, version)
-	// TODO: Uncomment when fix #19254
+	defer server.Close()
-	// defer server.Close()
 	defer etcdserver.Terminate(t)
 
 	inputObj := Foo{
@@ -811,8 +808,7 @@ func TestInstallThirdPartyAPIDelete(t *testing.T) {
 
 func testInstallThirdPartyAPIDeleteVersion(t *testing.T, version string) {
 	master, etcdserver, server, assert := initThirdParty(t, version)
-	// TODO: Uncomment when fix #19254
+	defer server.Close()
-	// defer server.Close()
 	defer etcdserver.Terminate(t)
 
 	expectedObj := Foo{
@@ -889,8 +885,7 @@ func TestInstallThirdPartyAPIListOptions(t *testing.T) {
 
 func testInstallThirdPartyAPIListOptionsForVersion(t *testing.T, version string) {
 	_, etcdserver, server, assert := initThirdParty(t, version)
-	// TODO: Uncomment when fix #19254
+	defer server.Close()
-	// defer server.Close()
 	defer etcdserver.Terminate(t)
 
 	// send a GET request with query parameter
@@ -922,8 +917,7 @@ func TestInstallThirdPartyResourceRemove(t *testing.T) {
 
 func testInstallThirdPartyResourceRemove(t *testing.T, version string) {
 	master, etcdserver, server, assert := initThirdParty(t, version)
-	// TODO: Uncomment when fix #19254
+	defer server.Close()
-	// defer server.Close()
 	defer etcdserver.Terminate(t)
 
 	expectedObj := Foo{
@@ -1012,8 +1006,7 @@ func TestThirdPartyDiscovery(t *testing.T) {
 
 func testThirdPartyDiscovery(t *testing.T, version string) {
 	_, etcdserver, server, assert := initThirdParty(t, version)
-	// TODO: Uncomment when fix #19254
+	defer server.Close()
-	// defer server.Close()
 	defer etcdserver.Terminate(t)
 
 	resp, err := http.Get(server.URL + "/apis/company.com/")

pkg/probe/tcp/tcp_test.go

@@ -42,8 +42,7 @@ func TestTcpHealthChecker(t *testing.T) {
 	server := httptest.NewServer(http.HandlerFunc(func(w http.ResponseWriter, r *http.Request) {
 		w.WriteHeader(http.StatusOK)
 	}))
-	// TODO: Uncomment when fix #19254
+	defer server.Close()
-	// defer server.Close()
 	tHost, tPortStr, err := net.SplitHostPort(server.Listener.Addr().String())
 	if err != nil {
 		t.Errorf("unexpected error: %v", err)

pkg/registry/generic/rest/proxy_test.go

@@ -208,8 +208,7 @@ func TestServeHTTP(t *testing.T) {
 				responseHeader: backendResponseHeader,
 			}
 			backendServer := httptest.NewServer(backendHandler)
-			// TODO: Uncomment when fix #19254
+			defer backendServer.Close()
-			// defer backendServer.Close()
 
 			responder := &fakeResponder{}
 			backendURL, _ := url.Parse(backendServer.URL)
@@ -220,8 +219,7 @@ func TestServeHTTP(t *testing.T) {
 				UpgradeRequired: test.upgradeRequired,
 			}
 			proxyServer := httptest.NewServer(proxyHandler)
-			// TODO: Uncomment when fix #19254
+			defer proxyServer.Close()
-			// defer proxyServer.Close()
 			proxyURL, _ := url.Parse(proxyServer.URL)
 			proxyURL.Path = test.requestPath
 			paramValues := url.Values{}
@@ -377,8 +375,7 @@ func TestProxyUpgrade(t *testing.T) {
 			ws.Read(body)
 			ws.Write([]byte("hello " + string(body)))
 		}))
-		// TODO: Uncomment when fix #19254
+		defer backendServer.Close()
-		// defer backendServer.Close()
 
 		serverURL, _ := url.Parse(backendServer.URL)
 		proxyHandler := &UpgradeAwareProxyHandler{
@@ -386,8 +383,7 @@ func TestProxyUpgrade(t *testing.T) {
 			Transport: tc.ProxyTransport,
 		}
 		proxy := httptest.NewServer(proxyHandler)
-		// TODO: Uncomment when fix #19254
+		defer proxy.Close()
-		// defer proxy.Close()
 
 		ws, err := websocket.Dial("ws://"+proxy.Listener.Addr().String()+"/some/path", "", "http://127.0.0.1/")
 		if err != nil {
@@ -621,8 +617,7 @@ func TestProxyRequestContentLengthAndTransferEncoding(t *testing.T) {
 			// Write successful response
 			w.Write([]byte(successfulResponse))
 		}))
-		// TODO: Uncomment when fix #19254
+		defer downstreamServer.Close()
-		// defer downstreamServer.Close()
 
 		responder := &fakeResponder{}
 		backendURL, _ := url.Parse(downstreamServer.URL)
@@ -632,8 +627,7 @@ func TestProxyRequestContentLengthAndTransferEncoding(t *testing.T) {
 			UpgradeRequired: false,
 		}
 		proxyServer := httptest.NewServer(proxyHandler)
-		// TODO: Uncomment when fix #19254
+		defer proxyServer.Close()
-		// defer proxyServer.Close()
 
 		// Dial the proxy server
 		conn, err := net.Dial(proxyServer.Listener.Addr().Network(), proxyServer.Listener.Addr().String())

pkg/registry/generic/rest/streamer_test.go

@@ -36,8 +36,7 @@ func TestInputStreamReader(t *testing.T) {
 	s := httptest.NewServer(http.HandlerFunc(func(w http.ResponseWriter, req *http.Request) {
 		w.Write([]byte(resultString))
 	}))
-	// TODO: Uncomment when fix #19254
+	defer s.Close()
-	// defer s.Close()
 	u, err := url.Parse(s.URL)
 	if err != nil {
 		t.Errorf("Error parsing server URL: %v", err)

pkg/storage/etcd/testing/utils.go

@@ -212,8 +212,7 @@ func (m *EtcdTestServer) Terminate(t *testing.T) {
 	time.Sleep(250 * time.Millisecond)
 	for _, hs := range m.hss {
 		hs.CloseClientConnections()
-		// TODO: Uncomment when fix #19254
+		hs.Close()
-		// hs.Close()
 	}
 	if err := os.RemoveAll(m.ServerConfig.DataDir); err != nil {
 		t.Fatal(err)

pkg/storage/etcd/util/etcd_util_test.go

@@ -47,8 +47,7 @@ func TestGetEtcdVersion_ValidVersion(t *testing.T) {
 	testServer := httptest.NewServer(http.HandlerFunc(func(w http.ResponseWriter, r *http.Request) {
 		fmt.Fprint(w, validEtcdVersion)
 	}))
-	// TODO: Uncomment when fix #19254
+	defer testServer.Close()
-	// defer testServer.Close()
 
 	var version string
 	var err error
@@ -63,8 +62,7 @@ func TestGetEtcdVersion_ErrorStatus(t *testing.T) {
 	testServer := httptest.NewServer(http.HandlerFunc(func(w http.ResponseWriter, r *http.Request) {
 		w.WriteHeader(http.StatusServiceUnavailable)
 	}))
-	// TODO: Uncomment when fix #19254
+	defer testServer.Close()
-	// defer testServer.Close()
 
 	_, err := GetEtcdVersion(testServer.URL)
 	assert.NotNil(t, err)

pkg/util/configz/configz_test.go

@@ -32,8 +32,7 @@ func TestConfigz(t *testing.T) {
 	v.Set("blah")
 
 	s := httptest.NewServer(http.HandlerFunc(handle))
-	// TODO: Uncomment when fix #19254
+	defer s.Close()
-	// defer s.Close()
 
 	resp, err := http.Get(s.URL + "/configz")
 	if err != nil {

pkg/util/httpstream/spdy/roundtripper_test.go

@@ -264,8 +264,7 @@ func TestRoundTripAndNewConnection(t *testing.T) {
 			stream := <-streamCh
 			io.Copy(stream, stream)
 		}))
-		// TODO: Uncomment when fix #19254
+		defer server.Close()
-		// defer server.Close()
 
 		serverURL, err := url.Parse(server.URL)
 		if err != nil {
@@ -305,8 +304,7 @@ func TestRoundTripAndNewConnection(t *testing.T) {
 				proxyURL.User = testCase.proxyAuth
 				return proxyURL, nil
 			}
-			// TODO: Uncomment when fix #19254
+			defer proxy.Close()
-			// defer proxy.Close()
 		}
 
 		client := &http.Client{Transport: spdyTransport}

pkg/util/httpstream/spdy/upgrade_test.go

@@ -66,8 +66,7 @@ func TestUpgradeResponse(t *testing.T) {
 			}
 			defer conn.Close()
 		}))
-		// TODO: Uncomment when fix #19254
+		defer server.Close()
-		// defer server.Close()
 
 		req, err := http.NewRequest("GET", server.URL, nil)
 		if err != nil {

pkg/util/proxy/transport_test.go

@@ -219,8 +219,7 @@ func TestProxyTransport(t *testing.T) {
 			w.Header().Set("Content-Type", item.contentType)
 			fmt.Fprint(w, item.input)
 		}))
-		// TODO: Uncomment when fix #19254
+		defer server.Close()
-		// defer server.Close()
 
 		// Replace source URL with our test server address.
 		sourceURL := parseURLOrDie(item.sourceURL)

pkg/util/testing/fake_handler_test.go

@@ -26,8 +26,7 @@ import (
 func TestFakeHandlerPath(t *testing.T) {
 	handler := FakeHandler{StatusCode: http.StatusOK}
 	server := httptest.NewServer(&handler)
-	// TODO: Uncomment when fix #19254
+	defer server.Close()
-	// defer server.Close()
 	method := "GET"
 	path := "/foo/bar"
 	body := "somebody"
@@ -49,8 +48,7 @@ func TestFakeHandlerPath(t *testing.T) {
 func TestFakeHandlerPathNoBody(t *testing.T) {
 	handler := FakeHandler{StatusCode: http.StatusOK}
 	server := httptest.NewServer(&handler)
-	// TODO: Uncomment when fix #19254
+	defer server.Close()
-	// defer server.Close()
 	method := "GET"
 	path := "/foo/bar"
 
@@ -81,8 +79,7 @@ func (f *fakeError) Logf(format string, args ...interface{}) {}
 func TestFakeHandlerWrongPath(t *testing.T) {
 	handler := FakeHandler{StatusCode: http.StatusOK}
 	server := httptest.NewServer(&handler)
-	// TODO: Uncomment when fix #19254
+	defer server.Close()
-	// defer server.Close()
 	method := "GET"
 	path := "/foo/bar"
 	fakeT := fakeError{}
@@ -107,8 +104,7 @@ func TestFakeHandlerWrongPath(t *testing.T) {
 func TestFakeHandlerWrongMethod(t *testing.T) {
 	handler := FakeHandler{StatusCode: http.StatusOK}
 	server := httptest.NewServer(&handler)
-	// TODO: Uncomment when fix #19254
+	defer server.Close()
-	// defer server.Close()
 	method := "GET"
 	path := "/foo/bar"
 	fakeT := fakeError{}
@@ -133,8 +129,7 @@ func TestFakeHandlerWrongMethod(t *testing.T) {
 func TestFakeHandlerWrongBody(t *testing.T) {
 	handler := FakeHandler{StatusCode: http.StatusOK}
 	server := httptest.NewServer(&handler)
-	// TODO: Uncomment when fix #19254
+	defer server.Close()
-	// defer server.Close()
 	method := "GET"
 	path := "/foo/bar"
 	body := "somebody"
@@ -161,8 +156,7 @@ func TestFakeHandlerWrongBody(t *testing.T) {
 func TestFakeHandlerNilBody(t *testing.T) {
 	handler := FakeHandler{StatusCode: http.StatusOK}
 	server := httptest.NewServer(&handler)
-	// TODO: Uncomment when fix #19254
+	defer server.Close()
-	// defer server.Close()
 	method := "GET"
 	path := "/foo/bar"
 	body := "somebody"

pkg/util/wsstream/conn_test.go

@@ -36,10 +36,8 @@ func newServer(handler websocket.Handler) (*httptest.Server, string) {
 
 func TestRawConn(t *testing.T) {
 	conn := NewConn(ReadWriteChannel, ReadWriteChannel, IgnoreChannel, ReadChannel, WriteChannel)
-	// TODO: Uncomment next two lines and remove third line when fix #19254
+	s, addr := newServer(conn.handle)
-	// s, addr := newServer(conn.handle)
+	defer s.Close()
-	// defer s.Close()
-	_, addr := newServer(conn.handle)
 
 	client, err := websocket.Dial("ws://"+addr, "", "http://localhost/")
 	if err != nil {
@@ -115,10 +113,8 @@ func TestRawConn(t *testing.T) {
 
 func TestBase64Conn(t *testing.T) {
 	conn := NewConn(ReadWriteChannel, ReadWriteChannel)
-	// TODO: Uncomment next two lines and remove third line when fix #19254
+	s, addr := newServer(conn.handle)
-	// s, addr := newServer(conn.handle)
+	defer s.Close()
-	// defer s.Close()
-	_, addr := newServer(conn.handle)
 
 	config, err := websocket.NewConfig("ws://"+addr, "http://localhost/")
 	if err != nil {

plugin/pkg/auth/authenticator/token/oidc/oidc_test.go

@@ -227,8 +227,7 @@ func TestOIDCDiscoveryNoKeyEndpoint(t *testing.T) {
 		t.Fatalf("Cannot load cert/key pair: %v", err)
 	}
 	srv.StartTLS()
-	// TODO: Uncomment when fix #19254
+	defer srv.Close()
-	// defer srv.Close()
 
 	op.pcfg = oidc.ProviderConfig{
 		Issuer: mustParseURL(t, srv.URL), // An invalid ProviderConfig. Keys endpoint is required.
@@ -244,8 +243,7 @@ func TestOIDCDiscoverySecureConnection(t *testing.T) {
 	// Verify that plain HTTP issuer URL is forbidden.
 	op := newOIDCProvider(t)
 	srv := httptest.NewServer(op.mux)
-	// TODO: Uncomment when fix #19254
+	defer srv.Close()
-	// defer srv.Close()
 
 	op.pcfg = oidc.ProviderConfig{
 		Issuer:       mustParseURL(t, srv.URL),
@@ -281,8 +279,7 @@ func TestOIDCDiscoverySecureConnection(t *testing.T) {
 		t.Fatalf("Cannot load cert/key pair: %v", err)
 	}
 	tlsSrv.StartTLS()
-	// TODO: Uncomment when fix #19254
+	defer tlsSrv.Close()
-	// defer tlsSrv.Close()
 
 	op.pcfg = oidc.ProviderConfig{
 		Issuer:       mustParseURL(t, tlsSrv.URL),
@@ -317,8 +314,7 @@ func TestOIDCAuthentication(t *testing.T) {
 		t.Fatalf("Cannot load cert/key pair: %v", err)
 	}
 	srv.StartTLS()
-	// TODO: Uncomment when fix #19254
+	defer srv.Close()
-	// defer srv.Close()
 
 	// A provider config with all required fields.
 	op.pcfg = oidc.ProviderConfig{

plugin/pkg/scheduler/algorithmprovider/defaults/compatibility_test.go

@@ -113,8 +113,7 @@ func TestCompatibility_v1_Scheduler(t *testing.T) {
 			T:            t,
 		}
 		server := httptest.NewServer(&handler)
-		// TODO: Uncomment when fix #19254
+		defer server.Close()
-		// defer server.Close()
 		client := client.NewOrDie(&restclient.Config{Host: server.URL, ContentConfig: restclient.ContentConfig{GroupVersion: testapi.Default.GroupVersion()}})
 
 		if _, err := factory.NewConfigFactory(client, "some-scheduler-name").CreateFromConfig(policy); err != nil {

plugin/pkg/scheduler/factory/factory_test.go

@@ -45,8 +45,7 @@ func TestCreate(t *testing.T) {
 		T:            t,
 	}
 	server := httptest.NewServer(&handler)
-	// TODO: Uncomment when fix #19254
+	defer server.Close()
-	// defer server.Close()
 	client := client.NewOrDie(&restclient.Config{Host: server.URL, ContentConfig: restclient.ContentConfig{GroupVersion: testapi.Default.GroupVersion()}})
 	factory := NewConfigFactory(client, api.DefaultSchedulerName)
 	factory.Create()
@@ -64,8 +63,7 @@ func TestCreateFromConfig(t *testing.T) {
 		T:            t,
 	}
 	server := httptest.NewServer(&handler)
-	// TODO: Uncomment when fix #19254
+	defer server.Close()
-	// defer server.Close()
 	client := client.NewOrDie(&restclient.Config{Host: server.URL, ContentConfig: restclient.ContentConfig{GroupVersion: testapi.Default.GroupVersion()}})
 	factory := NewConfigFactory(client, api.DefaultSchedulerName)
 
@@ -106,8 +104,7 @@ func TestCreateFromEmptyConfig(t *testing.T) {
 		T:            t,
 	}
 	server := httptest.NewServer(&handler)
-	// TODO: Uncomment when fix #19254
+	defer server.Close()
-	// defer server.Close()
 	client := client.NewOrDie(&restclient.Config{Host: server.URL, ContentConfig: restclient.ContentConfig{GroupVersion: testapi.Default.GroupVersion()}})
 	factory := NewConfigFactory(client, api.DefaultSchedulerName)
 
@@ -150,8 +147,7 @@ func TestDefaultErrorFunc(t *testing.T) {
 	// FakeHandler musn't be sent requests other than the one you want to test.
 	mux.Handle(testapi.Default.ResourcePath("pods", "bar", "foo"), &handler)
 	server := httptest.NewServer(mux)
-	// TODO: Uncomment when fix #19254
+	defer server.Close()
-	// defer server.Close()
 	factory := NewConfigFactory(client.NewOrDie(&restclient.Config{Host: server.URL, ContentConfig: restclient.ContentConfig{GroupVersion: testapi.Default.GroupVersion()}}), api.DefaultSchedulerName)
 	queue := cache.NewFIFO(cache.MetaNamespaceKeyFunc)
 	podBackoff := podBackoff{
@@ -234,8 +230,7 @@ func TestBind(t *testing.T) {
 			T:            t,
 		}
 		server := httptest.NewServer(&handler)
-		// TODO: Uncomment when fix #19254
+		defer server.Close()
-		// defer server.Close()
 		client := client.NewOrDie(&restclient.Config{Host: server.URL, ContentConfig: restclient.ContentConfig{GroupVersion: testapi.Default.GroupVersion()}})
 		b := binder{client}
 
@@ -320,8 +315,7 @@ func TestResponsibleForPod(t *testing.T) {
 		T:            t,
 	}
 	server := httptest.NewServer(&handler)
-	// TODO: Uncomment when fix #19254
+	defer server.Close()
-	// defer server.Close()
 	client := client.NewOrDie(&restclient.Config{Host: server.URL, ContentConfig: restclient.ContentConfig{GroupVersion: testapi.Default.GroupVersion()}})
 	// factory of "default-scheduler"
 	factoryDefaultScheduler := NewConfigFactory(client, api.DefaultSchedulerName)

test/component/scheduler/perf/util.go

@@ -75,8 +75,7 @@ func mustSetupScheduler() (schedulerConfigFactory *factory.ConfigFactory, destro
 	destroyFunc = func() {
 		glog.Infof("destroying")
 		close(schedulerConfig.StopEverything)
-		// TODO: Uncomment when fix #19254
+		s.Close()
-		// s.Close()
 		glog.Infof("destroyed")
 	}
 	return

test/integration/auth_test.go

@@ -391,8 +391,7 @@ func TestAuthModeAlwaysAllow(t *testing.T) {
 	s := httptest.NewServer(http.HandlerFunc(func(w http.ResponseWriter, req *http.Request) {
 		m.Handler.ServeHTTP(w, req)
 	}))
-	// TODO: Uncomment when fix #19254
+	defer s.Close()
-	// defer s.Close()
 
 	masterConfig := framework.NewIntegrationTestMasterConfig()
 	m, err := master.New(masterConfig)
@@ -497,8 +496,7 @@ func TestAuthModeAlwaysDeny(t *testing.T) {
 	s := httptest.NewServer(http.HandlerFunc(func(w http.ResponseWriter, req *http.Request) {
 		m.Handler.ServeHTTP(w, req)
 	}))
-	// TODO: Uncomment when fix #19254
+	defer s.Close()
-	// defer s.Close()
 
 	masterConfig := framework.NewIntegrationTestMasterConfig()
 	masterConfig.Authorizer = apiserver.NewAlwaysDenyAuthorizer()
@@ -555,8 +553,7 @@ func TestAliceNotForbiddenOrUnauthorized(t *testing.T) {
 	s := httptest.NewServer(http.HandlerFunc(func(w http.ResponseWriter, req *http.Request) {
 		m.Handler.ServeHTTP(w, req)
 	}))
-	// TODO: Uncomment when fix #19254
+	defer s.Close()
-	// defer s.Close()
 
 	masterConfig := framework.NewIntegrationTestMasterConfig()
 	masterConfig.Authenticator = getTestTokenAuth()
@@ -634,8 +631,7 @@ func TestBobIsForbidden(t *testing.T) {
 	s := httptest.NewServer(http.HandlerFunc(func(w http.ResponseWriter, req *http.Request) {
 		m.Handler.ServeHTTP(w, req)
 	}))
-	// TODO: Uncomment when fix #19254
+	defer s.Close()
-	// defer s.Close()
 
 	masterConfig := framework.NewIntegrationTestMasterConfig()
 	masterConfig.Authenticator = getTestTokenAuth()
@@ -686,8 +682,7 @@ func TestUnknownUserIsUnauthorized(t *testing.T) {
 	s := httptest.NewServer(http.HandlerFunc(func(w http.ResponseWriter, req *http.Request) {
 		m.Handler.ServeHTTP(w, req)
 	}))
-	// TODO: Uncomment when fix #19254
+	defer s.Close()
-	// defer s.Close()
 
 	masterConfig := framework.NewIntegrationTestMasterConfig()
 	masterConfig.Authenticator = getTestTokenAuth()
@@ -844,8 +839,7 @@ func TestAuthorizationAttributeDetermination(t *testing.T) {
 	s := httptest.NewServer(http.HandlerFunc(func(w http.ResponseWriter, req *http.Request) {
 		m.Handler.ServeHTTP(w, req)
 	}))
-	// TODO: Uncomment when fix #19254
+	defer s.Close()
-	// defer s.Close()
 
 	masterConfig := framework.NewIntegrationTestMasterConfig()
 	masterConfig.Authenticator = getTestTokenAuth()
@@ -917,8 +911,7 @@ func TestNamespaceAuthorization(t *testing.T) {
 	s := httptest.NewServer(http.HandlerFunc(func(w http.ResponseWriter, req *http.Request) {
 		m.Handler.ServeHTTP(w, req)
 	}))
-	// TODO: Uncomment when fix #19254
+	defer s.Close()
-	// defer s.Close()
 
 	masterConfig := framework.NewIntegrationTestMasterConfig()
 	masterConfig.Authenticator = getTestTokenAuth()
@@ -1023,8 +1016,7 @@ func TestKindAuthorization(t *testing.T) {
 	s := httptest.NewServer(http.HandlerFunc(func(w http.ResponseWriter, req *http.Request) {
 		m.Handler.ServeHTTP(w, req)
 	}))
-	// TODO: Uncomment when fix #19254
+	defer s.Close()
-	// defer s.Close()
 
 	masterConfig := framework.NewIntegrationTestMasterConfig()
 	masterConfig.Authenticator = getTestTokenAuth()
@@ -1116,8 +1108,7 @@ func TestReadOnlyAuthorization(t *testing.T) {
 	s := httptest.NewServer(http.HandlerFunc(func(w http.ResponseWriter, req *http.Request) {
 		m.Handler.ServeHTTP(w, req)
 	}))
-	// TODO: Uncomment when fix #19254
+	defer s.Close()
-	// defer s.Close()
 
 	masterConfig := framework.NewIntegrationTestMasterConfig()
 	masterConfig.Authenticator = getTestTokenAuth()

test/integration/client_test.go

@@ -40,8 +40,7 @@ import (
 
 func TestClient(t *testing.T) {
 	_, s := framework.RunAMaster(t)
-	// TODO: Uncomment when fix #19254
+	defer s.Close()
-	// defer s.Close()
 
 	ns := api.NamespaceDefault
 	framework.DeleteAllEtcdKeys()
@@ -111,8 +110,7 @@ func TestClient(t *testing.T) {
 
 func TestSingleWatch(t *testing.T) {
 	_, s := framework.RunAMaster(t)
-	// TODO: Uncomment when fix #19254
+	defer s.Close()
-	// defer s.Close()
 
 	ns := "blargh"
 	deleteAllEtcdKeys()
@@ -197,8 +195,7 @@ func TestMultiWatch(t *testing.T) {
 	framework.DeleteAllEtcdKeys()
 	defer framework.DeleteAllEtcdKeys()
 	_, s := framework.RunAMaster(t)
-	// TODO: Uncomment when fix #19254
+	defer s.Close()
-	// defer s.Close()
 
 	ns := api.NamespaceDefault
 	client := client.NewOrDie(&restclient.Config{Host: s.URL, ContentConfig: restclient.ContentConfig{GroupVersion: testapi.Default.GroupVersion()}})

test/integration/configmap_test.go

@@ -39,8 +39,7 @@ func TestConfigMap(t *testing.T) {
 	s := httptest.NewServer(http.HandlerFunc(func(w http.ResponseWriter, req *http.Request) {
 		m.Handler.ServeHTTP(w, req)
 	}))
-	// TODO: Uncomment when fix #19254
+	defer s.Close()
-	// defer s.Close()
 
 	masterConfig := framework.NewIntegrationTestMasterConfig()
 	m, err := master.New(masterConfig)

test/integration/extender_test.go

@@ -191,8 +191,7 @@ func TestSchedulerExtender(t *testing.T) {
 	s := httptest.NewServer(http.HandlerFunc(func(w http.ResponseWriter, req *http.Request) {
 		m.Handler.ServeHTTP(w, req)
 	}))
-	// TODO: Uncomment when fix #19254
+	defer s.Close()
-	// defer s.Close()
 
 	masterConfig := framework.NewIntegrationTestMasterConfig()
 	m, err := master.New(masterConfig)
@@ -210,8 +209,7 @@ func TestSchedulerExtender(t *testing.T) {
 	es1 := httptest.NewServer(http.HandlerFunc(func(w http.ResponseWriter, req *http.Request) {
 		extender1.serveHTTP(t, w, req)
 	}))
-	// TODO: Uncomment when fix #19254
+	defer es1.Close()
-	// defer es1.Close()
 
 	extender2 := &Extender{
 		name:         "extender2",
@@ -221,8 +219,7 @@ func TestSchedulerExtender(t *testing.T) {
 	es2 := httptest.NewServer(http.HandlerFunc(func(w http.ResponseWriter, req *http.Request) {
 		extender2.serveHTTP(t, w, req)
 	}))
-	// TODO: Uncomment when fix #19254
+	defer es2.Close()
-	// defer es2.Close()
 
 	policy := schedulerapi.Policy{
 		ExtenderConfigs: []schedulerapi.ExtenderConfig{

test/integration/framework/master_utils.go

@@ -210,8 +210,7 @@ func (m *MasterComponents) Stop(apiServer, rcManager bool) {
 		m.once.Do(m.stopRCManager)
 	}
 	if apiServer {
-		// TODO: Uncomment when fix #19254
+		m.ApiServer.Close()
-		// m.ApiServer.Close()
 	}
 }
 

test/integration/master_test.go

@@ -35,8 +35,7 @@ import (
 
 func testPrefix(t *testing.T, prefix string) {
 	_, s := framework.RunAMaster(t)
-	// TODO: Uncomment when fix #19254
+	defer s.Close()
-	// defer s.Close()
 
 	resp, err := http.Get(s.URL + prefix)
 	if err != nil {
@@ -65,8 +64,7 @@ func TestExtensionsPrefix(t *testing.T) {
 
 func TestWatchSucceedsWithoutArgs(t *testing.T) {
 	_, s := framework.RunAMaster(t)
-	// TODO: Uncomment when fix #19254
+	defer s.Close()
-	// defer s.Close()
 
 	resp, err := http.Get(s.URL + "/api/v1/namespaces?watch=1")
 	if err != nil {
@@ -306,8 +304,7 @@ func TestBatchGroupBackwardCompatibility(t *testing.T) {
 
 func TestAccept(t *testing.T) {
 	_, s := framework.RunAMaster(t)
-	// TODO: Uncomment when fix #19254
+	defer s.Close()
-	// defer s.Close()
 
 	resp, err := http.Get(s.URL + "/api/")
 	if err != nil {

test/integration/metrics_test.go

@@ -87,8 +87,7 @@ func checkForExpectedMetrics(t *testing.T, metrics []*prometheuspb.MetricFamily,
 
 func TestMasterProcessMetrics(t *testing.T) {
 	_, s := framework.RunAMaster(t)
-	// TODO: Uncomment when fix #19254
+	defer s.Close()
-	// defer s.Close()
 
 	metrics, err := scrapeMetrics(s)
 	if err != nil {
@@ -105,8 +104,7 @@ func TestMasterProcessMetrics(t *testing.T) {
 
 func TestApiserverMetrics(t *testing.T) {
 	_, s := framework.RunAMaster(t)
-	// TODO: Uncomment when fix #19254
+	defer s.Close()
-	// defer s.Close()
 
 	// Make a request to the apiserver to ensure there's at least one data point
 	// for the metrics we're expecting -- otherwise, they won't be exported.

test/integration/persistent_volumes_test.go

@@ -44,8 +44,7 @@ func init() {
 
 func TestPersistentVolumeRecycler(t *testing.T) {
 	_, s := framework.RunAMaster(t)
-	// TODO: Uncomment when fix #19254
+	defer s.Close()
-	// defer s.Close()
 
 	deleteAllEtcdKeys()
 	// Use higher QPS and Burst, there is a test for race condition below, which

test/integration/pods.go

@@ -37,8 +37,7 @@ func TestPodUpdateActiveDeadlineSeconds(t *testing.T) {
 	s := httptest.NewServer(http.HandlerFunc(func(w http.ResponseWriter, req *http.Request) {
 		m.Handler.ServeHTTP(w, req)
 	}))
-	// TODO: Uncomment when fix #19254
+	defer s.Close()
-	// defer s.Close()
 
 	ns := "pod-activedeadline-update"
 	masterConfig := framework.NewIntegrationTestMasterConfig()
@@ -168,8 +167,7 @@ func TestPodReadOnlyFilesystem(t *testing.T) {
 	s := httptest.NewServer(http.HandlerFunc(func(w http.ResponseWriter, req *http.Request) {
 		m.Handler.ServeHTTP(w, req)
 	}))
-	// TODO: Uncomment when fix #19254
+	defer s.Close()
-	// defer s.Close()
 
 	isReadOnly := true
 	ns := "pod-readonly-root"

test/integration/scheduler_test.go

@@ -58,8 +58,7 @@ func TestUnschedulableNodes(t *testing.T) {
 	s := httptest.NewServer(http.HandlerFunc(func(w http.ResponseWriter, req *http.Request) {
 		m.Handler.ServeHTTP(w, req)
 	}))
-	// TODO: Uncomment when fix #19254
+	defer s.Close()
-	// defer s.Close()
 
 	masterConfig := framework.NewIntegrationTestMasterConfig()
 	m, err := master.New(masterConfig)

test/integration/secret_test.go

@@ -45,8 +45,7 @@ func TestSecrets(t *testing.T) {
 	s := httptest.NewServer(http.HandlerFunc(func(w http.ResponseWriter, req *http.Request) {
 		m.Handler.ServeHTTP(w, req)
 	}))
-	// TODO: Uncomment when fix #19254
+	defer s.Close()
-	// defer s.Close()
 
 	masterConfig := framework.NewIntegrationTestMasterConfig()
 	m, err := master.New(masterConfig)

test/integration/service_account_test.go

@@ -426,8 +426,7 @@ func startServiceAccountTestServer(t *testing.T) (*clientset.Clientset, restclie
 		tokenController.Stop()
 		serviceAccountController.Stop()
 		serviceAccountAdmission.Stop()
-		// TODO: Uncomment when fix #19254
+		apiServer.Close()
-		// apiServer.Close()
 	}
 
 	return rootClientset, clientConfig, stop