kubernetes ioutils_test 源码

2022-09-18
浏览 (305)

kubernetes ioutils_test 代码

文件路径：/pkg/kubelet/util/ioutils/ioutils_test.go

/*
Copyright 2019 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 ioutils

import (
	"bytes"
	"fmt"
	"math/rand"
	"testing"

	"github.com/stretchr/testify/assert"
)

func TestLimitWriter(t *testing.T) {
	r := rand.New(rand.NewSource(1234)) // Fixed source to prevent flakes.

	tests := []struct {
		inputSize, limit, writeSize int64
	}{
		// Single write tests
		{100, 101, 100},
		{100, 100, 100},
		{100, 99, 100},
		{1, 1, 1},
		{100, 10, 100},
		{100, 0, 100},
		{100, -1, 100},
		// Multi write tests
		{100, 101, 10},
		{100, 100, 10},
		{100, 99, 10},
		{100, 10, 10},
		{100, 0, 10},
		{100, -1, 10},
	}

	for _, test := range tests {
		t.Run(fmt.Sprintf("inputSize=%d limit=%d writes=%d", test.inputSize, test.limit, test.writeSize), func(t *testing.T) {
			input := make([]byte, test.inputSize)
			r.Read(input)
			output := &bytes.Buffer{}
			w := LimitWriter(output, test.limit)

			var (
				err     error
				written int64
				n       int
			)
			for written < test.inputSize && err == nil {
				n, err = w.Write(input[written : written+test.writeSize])
				written += int64(n)
			}

			expectWritten := bounded(0, test.inputSize, test.limit)
			assert.EqualValues(t, expectWritten, written)
			if expectWritten <= 0 {
				assert.Empty(t, output)
			} else {
				assert.Equal(t, input[:expectWritten], output.Bytes())
			}

			if test.limit < test.inputSize {
				assert.Error(t, err)
			} else {
				assert.NoError(t, err)
			}
		})
	}
}

func bounded(min, val, max int64) int64 {
	if max < val {
		val = max
	}
	if val < min {
		val = min
	}
	return val
}

相关信息

kubernetes 源码目录

相关文章

kubernetes ioutils 源码

0 赞

所属分类： 后端技术
本文标签： docker golang
版权声明： 原创文章如转载，请注明本文链接: https://www.seaxiang.com/blog/8de237d91e424ccdbef20f454ace7fab

热门推荐

1、直接访问google.com
2、 - 优质文章
3、 gate.io
4、 harmony 鸿蒙hdc使用指导
5、 harmony 鸿蒙ArkUI组件（ArkTS）开发常见问题
6、 harmony 鸿蒙初识ArkTS语言
7、 golang
8、 flink kafka connector scan.startup.mode 的几个选项
9、 openharmony
10、 Vue中input框自动聚焦

Loading...