示例#1
0
func TestExtensionMapping(t *testing.T) {
	internalGV := schema.GroupVersion{Group: "test.group", Version: runtime.APIVersionInternal}
	externalGV := schema.GroupVersion{Group: "test.group", Version: "testExternal"}

	scheme := runtime.NewScheme()
	scheme.AddKnownTypeWithName(internalGV.WithKind("ExtensionType"), &InternalExtensionType{})
	scheme.AddKnownTypeWithName(internalGV.WithKind("OptionalExtensionType"), &InternalOptionalExtensionType{})
	scheme.AddKnownTypeWithName(externalGV.WithKind("ExtensionType"), &ExternalExtensionType{})
	scheme.AddKnownTypeWithName(externalGV.WithKind("OptionalExtensionType"), &ExternalOptionalExtensionType{})

	// register external first when the object is the same in both schemes, so ObjectVersionAndKind reports the
	// external version.
	scheme.AddKnownTypeWithName(externalGV.WithKind("A"), &ExtensionA{})
	scheme.AddKnownTypeWithName(externalGV.WithKind("B"), &ExtensionB{})
	scheme.AddKnownTypeWithName(internalGV.WithKind("A"), &ExtensionA{})
	scheme.AddKnownTypeWithName(internalGV.WithKind("B"), &ExtensionB{})

	codec := serializer.NewCodecFactory(scheme).LegacyCodec(externalGV)

	table := []struct {
		obj      runtime.Object
		expected runtime.Object
		encoded  string
	}{
		{
			&InternalExtensionType{
				Extension: runtime.NewEncodable(codec, &ExtensionA{TestString: "foo"}),
			},
			&InternalExtensionType{
				Extension: &runtime.Unknown{
					Raw:         []byte(`{"apiVersion":"test.group/testExternal","kind":"A","testString":"foo"}`),
					ContentType: runtime.ContentTypeJSON,
				},
			},
			// apiVersion is set in the serialized object for easier consumption by clients
			`{"apiVersion":"` + externalGV.String() + `","kind":"ExtensionType","extension":{"apiVersion":"test.group/testExternal","kind":"A","testString":"foo"}}
`,
		}, {
			&InternalExtensionType{Extension: runtime.NewEncodable(codec, &ExtensionB{TestString: "bar"})},
			&InternalExtensionType{
				Extension: &runtime.Unknown{
					Raw:         []byte(`{"apiVersion":"test.group/testExternal","kind":"B","testString":"bar"}`),
					ContentType: runtime.ContentTypeJSON,
				},
			},
			// apiVersion is set in the serialized object for easier consumption by clients
			`{"apiVersion":"` + externalGV.String() + `","kind":"ExtensionType","extension":{"apiVersion":"test.group/testExternal","kind":"B","testString":"bar"}}
`,
		}, {
			&InternalExtensionType{Extension: nil},
			&InternalExtensionType{
				Extension: nil,
			},
			`{"apiVersion":"` + externalGV.String() + `","kind":"ExtensionType","extension":null}
`,
		},
	}

	for i, item := range table {
		gotEncoded, err := runtime.Encode(codec, item.obj)
		if err != nil {
			t.Errorf("unexpected error '%v' (%#v)", err, item.obj)
		} else if e, a := item.encoded, string(gotEncoded); e != a {
			t.Errorf("expected\n%#v\ngot\n%#v\n", e, a)
		}

		gotDecoded, err := runtime.Decode(codec, []byte(item.encoded))
		if err != nil {
			t.Errorf("unexpected error '%v' (%v)", err, item.encoded)
		} else if e, a := item.expected, gotDecoded; !reflect.DeepEqual(e, a) {
			t.Errorf("%d: unexpected objects:\n%s", i, diff.ObjectGoPrintSideBySide(e, a))
		}
	}
}
示例#2
0
func TestNestedObject(t *testing.T) {
	internalGV := schema.GroupVersion{Group: "test.group", Version: runtime.APIVersionInternal}
	externalGV := schema.GroupVersion{Group: "test.group", Version: "v1test"}
	embeddedTestExternalGVK := externalGV.WithKind("EmbeddedTest")

	s := runtime.NewScheme()
	s.AddKnownTypes(internalGV, &EmbeddedTest{})
	s.AddKnownTypeWithName(embeddedTestExternalGVK, &EmbeddedTestExternal{})

	codec := serializer.NewCodecFactory(s).LegacyCodec(externalGV)

	inner := &EmbeddedTest{
		ID: "inner",
	}
	outer := &EmbeddedTest{
		ID:     "outer",
		Object: runtime.NewEncodable(codec, inner),
	}

	wire, err := runtime.Encode(codec, outer)
	if err != nil {
		t.Fatalf("Unexpected encode error '%v'", err)
	}

	t.Logf("Wire format is:\n%v\n", string(wire))

	decoded, err := runtime.Decode(codec, wire)
	if err != nil {
		t.Fatalf("Unexpected decode error %v", err)
	}

	// for later tests
	outer.Object = inner

	if e, a := outer, decoded; reflect.DeepEqual(e, a) {
		t.Errorf("Expected unequal %#v %#v", e, a)
	}

	obj, err := runtime.Decode(codec, decoded.(*EmbeddedTest).Object.(*runtime.Unknown).Raw)
	if err != nil {
		t.Fatal(err)
	}
	decoded.(*EmbeddedTest).Object = obj
	if e, a := outer, decoded; !reflect.DeepEqual(e, a) {
		t.Errorf("Expected equal %#v %#v", e, a)
	}

	// test JSON decoding of the external object, which should preserve
	// raw bytes
	var externalViaJSON EmbeddedTestExternal
	err = json.Unmarshal(wire, &externalViaJSON)
	if err != nil {
		t.Fatalf("Unexpected decode error %v", err)
	}
	if externalViaJSON.Kind == "" || externalViaJSON.APIVersion == "" || externalViaJSON.ID != "outer" {
		t.Errorf("Expected objects to have type info set, got %#v", externalViaJSON)
	}
	if !reflect.DeepEqual(externalViaJSON.EmptyObject.Raw, []byte("null")) || len(externalViaJSON.Object.Raw) == 0 {
		t.Errorf("Expected deserialization of nested objects into bytes, got %#v", externalViaJSON)
	}

	// test JSON decoding, too, since Decode uses yaml unmarshalling.
	// Generic Unmarshalling of JSON cannot load the nested objects because there is
	// no default schema set.  Consumers wishing to get direct JSON decoding must use
	// the external representation
	var decodedViaJSON EmbeddedTest
	err = json.Unmarshal(wire, &decodedViaJSON)
	if err == nil || !strings.Contains(err.Error(), "unmarshal object into Go value of type runtime.Object") {
		t.Fatalf("Unexpected decode error %v", err)
	}
	if a := decodedViaJSON; a.Object != nil || a.EmptyObject != nil {
		t.Errorf("Expected embedded objects to be nil: %#v", a)
	}
}