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Inject a kernel-compat tester for kube-proxy test

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This commit is contained in:
Tim Hockin
2016-01-13 12:07:18 -08:00
parent ea5f1233c2
commit 11f75e61b9
3 changed files with 85 additions and 23 deletions
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61
cmd/kube-proxy/app/server_test.go
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@@ -45,6 +45,17 @@ func (fake *fakeIptablesVersioner) GetVersion() (string, error) {
return fake.version, fake.err
}
type fakeKernelCompatTester struct {
ok bool
}
func (fake *fakeKernelCompatTester) IsCompatible() error {
if !fake.ok {
return fmt.Errorf("error")
}
return nil
}
func Test_getProxyMode(t *testing.T) {
if runtime.GOOS != "linux" {
t.Skip("skipping on non-Linux")
@@ -54,6 +65,7 @@ func Test_getProxyMode(t *testing.T) {
annotationKey string
annotationVal string
iptablesVersion string
kernelCompat bool
iptablesError error
expected string
}{
@@ -71,9 +83,16 @@ func Test_getProxyMode(t *testing.T) {
iptablesVersion: "0.0.0",
expected: proxyModeUserspace,
},
{ // flag says iptables, version ok
{ // flag says iptables, version ok, kernel not compatible
flag: "iptables",
iptablesVersion: iptables.MinCheckVersion,
kernelCompat: false,
expected: proxyModeUserspace,
},
{ // flag says iptables, version ok, kernel is compatible
flag: "iptables",
iptablesVersion: iptables.MinCheckVersion,
kernelCompat: true,
expected: proxyModeIptables,
},
{ // detect, error
@@ -86,9 +105,16 @@ func Test_getProxyMode(t *testing.T) {
iptablesVersion: "0.0.0",
expected: proxyModeUserspace,
},
{ // detect, version ok
{ // detect, version ok, kernel not compatible
flag: "",
iptablesVersion: iptables.MinCheckVersion,
kernelCompat: false,
expected: proxyModeUserspace,
},
{ // detect, version ok, kernel is compatible
flag: "",
iptablesVersion: iptables.MinCheckVersion,
kernelCompat: true,
expected: proxyModeIptables,
},
{ // annotation says userspace
@@ -111,11 +137,20 @@ func Test_getProxyMode(t *testing.T) {
iptablesVersion: "0.0.0",
expected: proxyModeUserspace,
},
{ // annotation says iptables, version ok
{ // annotation says iptables, version ok, kernel not compatible
flag: "",
annotationKey: "net.experimental.kubernetes.io/proxy-mode",
annotationVal: "iptables",
iptablesVersion: iptables.MinCheckVersion,
kernelCompat: false,
expected: proxyModeUserspace,
},
{ // annotation says iptables, version ok, kernel is compatible
flag: "",
annotationKey: "net.experimental.kubernetes.io/proxy-mode",
annotationVal: "iptables",
iptablesVersion: iptables.MinCheckVersion,
kernelCompat: true,
expected: proxyModeIptables,
},
{ // annotation says something else, version ok
@@ -123,6 +158,7 @@ func Test_getProxyMode(t *testing.T) {
annotationKey: "net.experimental.kubernetes.io/proxy-mode",
annotationVal: "other",
iptablesVersion: iptables.MinCheckVersion,
kernelCompat: true,
expected: proxyModeIptables,
},
{ // annotation says nothing, version ok
@@ -130,6 +166,7 @@ func Test_getProxyMode(t *testing.T) {
annotationKey: "net.experimental.kubernetes.io/proxy-mode",
annotationVal: "",
iptablesVersion: iptables.MinCheckVersion,
kernelCompat: true,
expected: proxyModeIptables,
},
{ // annotation says userspace
@@ -152,11 +189,20 @@ func Test_getProxyMode(t *testing.T) {
iptablesVersion: "0.0.0",
expected: proxyModeUserspace,
},
{ // annotation says iptables, version ok
{ // annotation says iptables, version ok, kernel not compatible
flag: "",
annotationKey: "net.beta.kubernetes.io/proxy-mode",
annotationVal: "iptables",
iptablesVersion: iptables.MinCheckVersion,
kernelCompat: false,
expected: proxyModeUserspace,
},
{ // annotation says iptables, version ok, kernel is compatible
flag: "",
annotationKey: "net.beta.kubernetes.io/proxy-mode",
annotationVal: "iptables",
iptablesVersion: iptables.MinCheckVersion,
kernelCompat: true,
expected: proxyModeIptables,
},
{ // annotation says something else, version ok
@@ -164,6 +210,7 @@ func Test_getProxyMode(t *testing.T) {
annotationKey: "net.beta.kubernetes.io/proxy-mode",
annotationVal: "other",
iptablesVersion: iptables.MinCheckVersion,
kernelCompat: true,
expected: proxyModeIptables,
},
{ // annotation says nothing, version ok
@@ -171,6 +218,7 @@ func Test_getProxyMode(t *testing.T) {
annotationKey: "net.beta.kubernetes.io/proxy-mode",
annotationVal: "",
iptablesVersion: iptables.MinCheckVersion,
kernelCompat: true,
expected: proxyModeIptables,
},
{ // flag says userspace, annotation disagrees
@@ -185,6 +233,7 @@ func Test_getProxyMode(t *testing.T) {
annotationKey: "net.experimental.kubernetes.io/proxy-mode",
annotationVal: "userspace",
iptablesVersion: iptables.MinCheckVersion,
kernelCompat: true,
expected: proxyModeIptables,
},
{ // flag says userspace, annotation disagrees
@@ -199,6 +248,7 @@ func Test_getProxyMode(t *testing.T) {
annotationKey: "net.beta.kubernetes.io/proxy-mode",
annotationVal: "userspace",
iptablesVersion: iptables.MinCheckVersion,
kernelCompat: true,
expected: proxyModeIptables,
},
}
@@ -206,7 +256,8 @@ func Test_getProxyMode(t *testing.T) {
getter := &fakeNodeInterface{}
getter.node.Annotations = map[string]string{c.annotationKey: c.annotationVal}
versioner := &fakeIptablesVersioner{c.iptablesVersion, c.iptablesError}
r := getProxyMode(c.flag, getter, "host", versioner)
kcompater := &fakeKernelCompatTester{c.kernelCompat}
r := getProxyMode(c.flag, getter, "host", versioner, kcompater)
if r != c.expected {
t.Errorf("Case[%d] Expected %q, got %q", i, c.expected, r)
}