kubernetes globalflags_test 源码

2022-09-18
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kubernetes globalflags_test 代码

文件路径：/staging/src/k8s.io/component-base/cli/globalflag/globalflags_test.go

/*
Copyright 2018 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 globalflag

import (
	"flag"
	"reflect"
	"sort"
	"strings"
	"testing"

	"github.com/spf13/pflag"

	cliflag "k8s.io/component-base/cli/flag"
	"k8s.io/component-base/logs"
)

func TestAddGlobalFlags(t *testing.T) {
	namedFlagSets := &cliflag.NamedFlagSets{}
	nfs := namedFlagSets.FlagSet("global")
	nfs.SetNormalizeFunc(cliflag.WordSepNormalizeFunc)
	AddGlobalFlags(nfs, "test-cmd")

	actualFlag := []string{}
	nfs.VisitAll(func(flag *pflag.Flag) {
		actualFlag = append(actualFlag, flag.Name)
	})

	// Get all flags from flags.CommandLine, except flag `test.*`.
	wantedFlag := []string{"help"}
	pflag.CommandLine.AddGoFlagSet(flag.CommandLine)
	logs.AddFlags(pflag.CommandLine)
	normalizeFunc := nfs.GetNormalizeFunc()
	pflag.VisitAll(func(flag *pflag.Flag) {
		if !strings.Contains(flag.Name, "test.") {
			wantedFlag = append(wantedFlag, string(normalizeFunc(nfs, flag.Name)))
		}
	})
	sort.Strings(wantedFlag)

	if !reflect.DeepEqual(wantedFlag, actualFlag) {
		t.Errorf("[Default]: expected %+v, got %+v", wantedFlag, actualFlag)
	}

	tests := []struct {
		expectedFlag  []string
		matchExpected bool
	}{
		{
			// Happy case
			expectedFlag:  []string{"add-dir-header", "alsologtostderr", "help", "log-backtrace-at", "log-dir", "log-file", "log-file-max-size", "log-flush-frequency", "logtostderr", "one-output", "skip-headers", "skip-log-headers", "stderrthreshold", "v", "vmodule"},
			matchExpected: false,
		},
		{
			// Missing flag
			expectedFlag:  []string{"logtostderr", "log-dir"},
			matchExpected: true,
		},
		{
			// Empty flag
			expectedFlag:  []string{},
			matchExpected: true,
		},
		{
			// Invalid flag
			expectedFlag:  []string{"foo"},
			matchExpected: true,
		},
	}

	for i, test := range tests {
		if reflect.DeepEqual(test.expectedFlag, actualFlag) == test.matchExpected {
			t.Errorf("[%d]: expected %+v, got %+v", i, test.expectedFlag, actualFlag)
		}
	}
}

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kubernetes globalflags 源码

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所属分类： 后端技术
本文标签： golang docker
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