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added previously failing unit test and fix using pkg/util/merge.go instead of mergo to apply patch.

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This commit is contained in:
Mike Danese 2015-01-31 10:59:08 -08:00
parent 3039f7846c
commit a4eca69e6c
5 changed files with 95 additions and 27 deletions
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3
pkg/kubectl/cmd/expose.go
View File

@ -85,7 +85,8 @@ Examples:
inline := util.GetFlagString(cmd, "overrides")
if len(inline) > 0 {
util.Merge(service, inline, "Service")
service, err = util.Merge(service, inline, "Service")
checkErr(err)
}
// TODO: extract this flag to a central location, when such a location exists.

3
pkg/kubectl/cmd/run.go
View File

@ -74,7 +74,8 @@ Examples:
inline := util.GetFlagString(cmd, "overrides")
if len(inline) > 0 {
util.Merge(controller, inline, "ReplicationController")
controller, err = util.Merge(controller, inline, "ReplicationController")
checkErr(err)
}
// TODO: extract this flag to a central location, when such a location exists.

9
pkg/kubectl/cmd/update.go
View File

@ -116,12 +116,13 @@ func updateWithPatch(cmd *cobra.Command, args []string, f *Factory, patch string
obj, err := helper.Get(namespace, name)
checkErr(err)
cmdutil.Merge(obj, patch, mapping.Kind)
data, err := helper.Codec.Encode(obj)
patchedObj, err := cmdutil.Merge(obj, patch, mapping.Kind)
checkErr(err)
obj, err = helper.Update(namespace, name, true, data)
data, err := helper.Codec.Encode(patchedObj)
checkErr(err)
_, err = helper.Update(namespace, name, true, data)
checkErr(err)
return name
}

30
pkg/kubectl/cmd/util/helpers.go
View File

@ -29,8 +29,8 @@ import (
"github.com/GoogleCloudPlatform/kubernetes/pkg/api"
"github.com/GoogleCloudPlatform/kubernetes/pkg/runtime"
"github.com/GoogleCloudPlatform/kubernetes/pkg/util/merge"
"github.com/golang/glog"
"github.com/imdario/mergo"
"github.com/spf13/cobra"
)
@ -188,36 +188,40 @@ func ReadConfigDataFromLocation(location string) ([]byte, error) {
}
}
func Merge(dst runtime.Object, fragment, kind string) error {
func Merge(dst runtime.Object, fragment, kind string) (runtime.Object, error) {
// Ok, this is a little hairy, we'd rather not force the user to specify a kind for their JSON
// So we pull it into a map, add the Kind field, and then reserialize.
// We also pull the apiVersion for proper parsing
var intermediate interface{}
if err := json.Unmarshal([]byte(fragment), &intermediate); err != nil {
return err
return nil, err
}
dataMap, ok := intermediate.(map[string]interface{})
if !ok {
return fmt.Errorf("Expected a map, found something else: %s", fragment)
return nil, fmt.Errorf("Expected a map, found something else: %s", fragment)
}
version, found := dataMap["apiVersion"]
if !found {
return fmt.Errorf("Inline JSON requires an apiVersion field")
return nil, fmt.Errorf("Inline JSON requires an apiVersion field")
}
versionString, ok := version.(string)
if !ok {
return fmt.Errorf("apiVersion must be a string")
return nil, fmt.Errorf("apiVersion must be a string")
}
codec := runtime.CodecFor(api.Scheme, versionString)
dataMap["kind"] = kind
data, err := json.Marshal(intermediate)
codec := runtime.CodecFor(api.Scheme, versionString)
// encode dst into versioned json and apply fragment directly too it
target, err := codec.Encode(dst)
if err != nil {
return err
return nil, err
}
src, err := codec.Decode(data)
patched, err := merge.MergeJSON(target, []byte(fragment))
if err != nil {
return err
return nil, err
}
return mergo.Merge(dst, src)
out, err := codec.Decode(patched)
if err != nil {
return nil, err
}
return out, nil
}

77
pkg/kubectl/cmd/util/helpers_test.go
View File

@ -30,14 +30,16 @@ func TestMerge(t *testing.T) {
fragment string
expected runtime.Object
expectErr bool
kind string
}{
{
kind: "Pod",
obj: &api.Pod{
ObjectMeta: api.ObjectMeta{
Name: "foo",
},
},
fragment: "{ \"apiVersion\": \"v1beta1\" }",
fragment: `{ "apiVersion": "v1beta1" }`,
expected: &api.Pod{
ObjectMeta: api.ObjectMeta{
Name: "foo",
@ -51,12 +53,13 @@ func TestMerge(t *testing.T) {
},
},
{
kind: "Pod",
obj: &api.Pod{
ObjectMeta: api.ObjectMeta{
Name: "foo",
},
},
fragment: "{ \"apiVersion\": \"v1beta1\", \"id\": \"baz\", \"desiredState\": { \"host\": \"bar\" } }",
fragment: `{ "apiVersion": "v1beta1", "id": "baz", "desiredState": { "host": "bar" } }`,
expected: &api.Pod{
ObjectMeta: api.ObjectMeta{
Name: "baz",
@ -71,12 +74,13 @@ func TestMerge(t *testing.T) {
},
},
{
kind: "Pod",
obj: &api.Pod{
ObjectMeta: api.ObjectMeta{
Name: "foo",
},
},
fragment: "{ \"apiVersion\": \"v1beta3\", \"spec\": { \"volumes\": [ {\"name\": \"v1\"}, {\"name\": \"v2\"} ] } }",
fragment: `{ "apiVersion": "v1beta3", "spec": { "volumes": [ {"name": "v1"}, {"name": "v2"} ] } }`,
expected: &api.Pod{
ObjectMeta: api.ObjectMeta{
Name: "foo",
@ -100,24 +104,81 @@ func TestMerge(t *testing.T) {
},
},
{
kind: "Pod",
obj: &api.Pod{},
fragment: "invalid json",
expected: &api.Pod{},
expectErr: true,
},
{
kind: "Pod",
obj: &api.Pod{
ObjectMeta: api.ObjectMeta{
Name: "foo",
},
},
fragment: `{ "apiVersion": "v1beta1", "id": null}`,
expected: &api.Pod{
ObjectMeta: api.ObjectMeta{
Name: "",
},
Spec: api.PodSpec{
RestartPolicy: api.RestartPolicy{
Always: &api.RestartPolicyAlways{},
},
DNSPolicy: api.DNSClusterFirst,
},
},
},
{
kind: "Service",
obj: &api.Service{
Spec: api.ServiceSpec{
Port: 10,
},
},
fragment: `{ "apiVersion": "v1beta1", "port": 0 }`,
expected: &api.Service{
Spec: api.ServiceSpec{
Port: 0,
Protocol: "TCP",
SessionAffinity: "None",
},
},
},
{
kind: "Service",
obj: &api.Service{
Spec: api.ServiceSpec{
Selector: map[string]string{
"version": "v1",
},
},
},
fragment: `{ "apiVersion": "v1beta1", "selector": { "version": "v2" } }`,
expected: &api.Service{
Spec: api.ServiceSpec{
Protocol: "TCP",
SessionAffinity: "None",
Selector: map[string]string{
"version": "v2",
},
},
},
},
}
for i, test := range tests {
err := Merge(test.obj, test.fragment, "Pod")
out, err := Merge(test.obj, test.fragment, test.kind)
if !test.expectErr {
if err != nil {
t.Errorf("unexpected error: %v", err)
} else if !reflect.DeepEqual(test.obj, test.expected) {
t.Errorf("\n\ntestcase[%d]\nexpected:\n%v\nsaw:\n%v", i, test.expected, test.obj)
t.Errorf("testcase[%d], unexpected error: %v", i, err)
} else if !reflect.DeepEqual(out, test.expected) {
t.Errorf("\n\ntestcase[%d]\nexpected:\n%+v\nsaw:\n%+v", i, test.expected, out)
}
}
if test.expectErr && err == nil {
t.Errorf("unexpected non-error")
t.Errorf("testcase[%d], unexpected non-error", i)
}
}