kubernetes group_version_test 源码

kubernetes group_version_test 代码

文件路径：/staging/src/k8s.io/apimachinery/pkg/runtime/schema/group_version_test.go

/*
Copyright 2015 The Kubernetes Authors.

Licensed under the Apache License, Version 2.0 (the "License");
you may not use this file except in compliance with the License.
You may obtain a copy of the License at

    http://www.apache.org/licenses/LICENSE-2.0

Unless required by applicable law or agreed to in writing, software
distributed under the License is distributed on an "AS IS" BASIS,
WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
See the License for the specific language governing permissions and
limitations under the License.
*/

package schema

import (
	"testing"
)

func TestGroupVersionParse(t *testing.T) {
	tests := []struct {
		input string
		out   GroupVersion
		err   func(error) bool
	}{
		{input: "v1", out: GroupVersion{Version: "v1"}},
		{input: "v2", out: GroupVersion{Version: "v2"}},
		{input: "/v1", out: GroupVersion{Version: "v1"}},
		{input: "v1/", out: GroupVersion{Group: "v1"}},
		{input: "/v1/", err: func(err error) bool { return err.Error() == "unexpected GroupVersion string: /v1/" }},
		{input: "v1/a", out: GroupVersion{Group: "v1", Version: "a"}},
	}
	for i, test := range tests {
		out, err := ParseGroupVersion(test.input)
		if test.err == nil && err != nil || err == nil && test.err != nil {
			t.Errorf("%d: unexpected error: %v", i, err)
			continue
		}
		if test.err != nil && !test.err(err) {
			t.Errorf("%d: unexpected error: %v", i, err)
			continue
		}
		if out != test.out {
			t.Errorf("%d: unexpected output: %#v", i, out)
		}
	}
}

func TestGroupResourceParse(t *testing.T) {
	tests := []struct {
		input string
		out   GroupResource
	}{
		{input: "v1", out: GroupResource{Resource: "v1"}},
		{input: ".v1", out: GroupResource{Group: "v1"}},
		{input: "v1.", out: GroupResource{Resource: "v1"}},
		{input: "v1.a", out: GroupResource{Group: "a", Resource: "v1"}},
		{input: "b.v1.a", out: GroupResource{Group: "v1.a", Resource: "b"}},
	}
	for i, test := range tests {
		out := ParseGroupResource(test.input)
		if out != test.out {
			t.Errorf("%d: unexpected output: %#v", i, out)
		}
	}
}

func TestParseResourceArg(t *testing.T) {
	tests := []struct {
		input string
		gvr   *GroupVersionResource
		gr    GroupResource
	}{
		{input: "v1", gr: GroupResource{Resource: "v1"}},
		{input: ".v1", gr: GroupResource{Group: "v1"}},
		{input: "v1.", gr: GroupResource{Resource: "v1"}},
		{input: "v1.a", gr: GroupResource{Group: "a", Resource: "v1"}},
		{input: "b.v1.a", gvr: &GroupVersionResource{Group: "a", Version: "v1", Resource: "b"}, gr: GroupResource{Group: "v1.a", Resource: "b"}},
	}
	for i, test := range tests {
		gvr, gr := ParseResourceArg(test.input)
		if (gvr != nil && test.gvr == nil) || (gvr == nil && test.gvr != nil) || (test.gvr != nil && *gvr != *test.gvr) {
			t.Errorf("%d: unexpected output: %#v", i, gvr)
		}
		if gr != test.gr {
			t.Errorf("%d: unexpected output: %#v", i, gr)
		}
	}
}

func TestKindForGroupVersionKinds(t *testing.T) {
	gvks := GroupVersions{
		GroupVersion{Group: "batch", Version: "v1"},
		GroupVersion{Group: "batch", Version: "v2alpha1"},
		GroupVersion{Group: "policy", Version: "v1beta1"},
	}
	cases := []struct {
		input  []GroupVersionKind
		target GroupVersionKind
		ok     bool
	}{
		{
			input:  []GroupVersionKind{{Group: "batch", Version: "v2alpha1", Kind: "ScheduledJob"}},
			target: GroupVersionKind{Group: "batch", Version: "v2alpha1", Kind: "ScheduledJob"},
			ok:     true,
		},
		{
			input:  []GroupVersionKind{{Group: "batch", Version: "v3alpha1", Kind: "CronJob"}},
			target: GroupVersionKind{Group: "batch", Version: "v1", Kind: "CronJob"},
			ok:     true,
		},
		{
			input:  []GroupVersionKind{{Group: "policy", Version: "v1beta1", Kind: "PodDisruptionBudget"}},
			target: GroupVersionKind{Group: "policy", Version: "v1beta1", Kind: "PodDisruptionBudget"},
			ok:     true,
		},
		{
			input:  []GroupVersionKind{{Group: "apps", Version: "v1alpha1", Kind: "StatefulSet"}},
			target: GroupVersionKind{},
			ok:     false,
		},
	}

	for i, c := range cases {
		target, ok := gvks.KindForGroupVersionKinds(c.input)
		if c.target != target {
			t.Errorf("%d: unexpected target: %v, expected %v", i, target, c.target)
		}
		if c.ok != ok {
			t.Errorf("%d: unexpected ok: %v, expected %v", i, ok, c.ok)
		}
	}
}

func TestParseKindArg(t *testing.T) {
	tests := []struct {
		input string
		gvk   *GroupVersionKind
		gk    GroupKind
	}{
		{input: "Pod", gk: GroupKind{Kind: "Pod"}},
		{input: ".apps", gk: GroupKind{Group: "apps"}},
		{input: "Pod.", gk: GroupKind{Kind: "Pod"}},
		{input: "StatefulSet.apps", gk: GroupKind{Group: "apps", Kind: "StatefulSet"}},
		{input: "StatefulSet.v1.apps", gvk: &GroupVersionKind{Group: "apps", Version: "v1", Kind: "StatefulSet"}, gk: GroupKind{Group: "v1.apps", Kind: "StatefulSet"}},
	}
	for i, test := range tests {
		t.Run(test.input, func(t *testing.T) {
			gvk, gk := ParseKindArg(test.input)
			if (gvk != nil && test.gvk == nil) || (gvk == nil && test.gvk != nil) || (test.gvk != nil && *gvk != *test.gvk) {
				t.Errorf("%d: expected output: %#v, got: %#v", i, test.gvk, gvk)
			}
			if gk != test.gk {
				t.Errorf("%d: expected output: %#v, got: %#v", i, test.gk, gk)
			}
		})
	}
}

func TestParseGroupKind(t *testing.T) {
	tests := []struct {
		input string
		out   GroupKind
	}{
		{input: "Pod", out: GroupKind{Kind: "Pod"}},
		{input: ".StatefulSet", out: GroupKind{Group: "StatefulSet"}},
		{input: "StatefulSet.apps", out: GroupKind{Group: "apps", Kind: "StatefulSet"}},
	}
	for i, test := range tests {
		t.Run(test.input, func(t *testing.T) {
			out := ParseGroupKind(test.input)
			if out != test.out {
				t.Errorf("%d: expected output: %#v, got: %#v", i, test.out, out)
			}
		})
	}
}

func TestToAPIVersionAndKind(t *testing.T) {
	tests := []struct {
		desc         string
		input        GroupVersionKind
		GroupVersion string
		Kind         string
	}{
		{
			desc:         "gvk object is not empty",
			input:        GroupVersionKind{Version: "V1", Kind: "pod"},
			GroupVersion: "V1",
			Kind:         "pod",
		},
		{
			desc:         "gvk object is empty",
			input:        GroupVersionKind{},
			GroupVersion: "",
			Kind:         "",
		},
	}
	for i, test := range tests {
		version, kind := test.input.ToAPIVersionAndKind()
		if version != test.GroupVersion {
			t.Errorf("%d: expected version: %#v, got: %#v", i, test.GroupVersion, version)
		}
		if kind != test.Kind {
			t.Errorf("%d: expected kind: %#v, got: %#v", i, test.Kind, kind)
		}
	}
}

func TestBestMatch(t *testing.T) {
	tests := []struct {
		desc    string
		kinds   []GroupVersionKind
		targets []GroupVersionKind
		output  GroupVersionKind
	}{
		{
			desc:    "targets and kinds have match items",
			kinds:   []GroupVersionKind{{Version: "V1", Kind: "pod"}, {Version: "V2", Kind: "pod"}},
			targets: []GroupVersionKind{{Version: "V1", Kind: "pod"}},
			output:  GroupVersionKind{Version: "V1", Kind: "pod"},
		},
		{
			desc:    "targets and kinds do not have match items",
			kinds:   []GroupVersionKind{{Version: "V1", Kind: "pod"}, {Version: "V2", Kind: "pod"}},
			targets: []GroupVersionKind{{Version: "V3", Kind: "pod"}, {Version: "V4", Kind: "pod"}},
			output:  GroupVersionKind{Version: "V3", Kind: "pod"},
		},
	}

	for i, test := range tests {
		out := bestMatch(test.kinds, test.targets)
		if out != test.output {
			t.Errorf("%d: expected out: %#v, got: %#v", i, test.output, out)
		}
	}
}

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