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doc/things_about_e2e_test.md
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doc/things_about_e2e_test.md
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# v2 版本的集成测试设计
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## 回顾 v1
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在 v1 版本中,我们选用了 [bats](https://github.com/sstephenson/bats) 这个框架来做集成测试。当时这么做有如下原因:
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1. bats 框架是基于 bash 的,在 case 里面调用命令贴合 goc 实际的使用方法,非常直观。
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但是实际编写有如下难度:
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1. bats 中运行并行的任务时非常难受,同时运行的两个进程属于前后台关系,实测对 bats 的 case 有破坏性。
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2. 由于有双进程,又受限于 bash 的表达能力,实际 case 编写并不容易,其它维护者难以上手。
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3. 无法跨平台,或者跨平台叫麻烦。
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## 思考 v2
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v2 版本中要支持多平台,包括 Windows,基于这一点就可以否定继续使用 bats 了。
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剩下就是 Python 或者 Go 的测试框架了。考虑到内部团队的技术栈,这里就选用了 ginkgo。
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# How to run e2e test
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# How to run e2e test
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## 如何运行集成测试
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```
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make e2e
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```
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## 如何添加 sample
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为了不让 case 之间执行时互相干扰,集测设计了 samples 管理系统。
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在 `tests/e2e/samples` 目录中,按如下格式在 `meta.yaml` 中添加 sample 的元信息:
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```yaml
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samples:
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basic:
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dir: basic-project
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description: a basic project only print hello world
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gomod:
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dir: invalidmod-project
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description: a project which contains invalid go.mod
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```
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其中 basic 是键值,dir 是目录名,description 你可以添加一些说明,让大家一目了然这个 sample 的特点。
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然后就按照 `meta.yaml` 填写的信息在 samples 目录内添加相应的工程目录即可。
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@ -4,6 +4,7 @@ import (
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"bytes"
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"bytes"
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"context"
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"context"
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"fmt"
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"fmt"
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"os"
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"os/exec"
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"os/exec"
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"time"
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"time"
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)
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)
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@ -18,10 +19,15 @@ type LongRunCmd struct {
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done bool
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done bool
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}
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}
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func NewLongRunCmd(dir string, args []string) *LongRunCmd {
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// NewLongRunCmd defines a command which will be run forever
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//
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// You can specify the whole command arg list, the directory where the command
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// will be run in, and the env list.
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func NewLongRunCmd(args []string, dir string, envs []string) *LongRunCmd {
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ctx, cancel := context.WithCancel(context.Background())
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ctx, cancel := context.WithCancel(context.Background())
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cmd := exec.CommandContext(ctx, args[0], args[1:]...)
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cmd := exec.CommandContext(ctx, args[0], args[1:]...)
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cmd.Dir = dir
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cmd.Dir = dir
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cmd.Env = append(os.Environ(), envs...)
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var stderrBuf bytes.Buffer
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var stderrBuf bytes.Buffer
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var stdoutBuf bytes.Buffer
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var stdoutBuf bytes.Buffer
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@ -71,12 +77,13 @@ func (l *LongRunCmd) GetStdoutStdErr() (string, string) {
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}
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}
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// RunShortRunCmd defines a cmd which run and exits immediately
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// RunShortRunCmd defines a cmd which run and exits immediately
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func RunShortRunCmd(dir string, args []string) (string, error) {
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func RunShortRunCmd(args []string, dir string, envs []string) (string, error) {
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ctx, cancel := context.WithTimeout(context.Background(), time.Second*20)
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ctx, cancel := context.WithTimeout(context.Background(), time.Second*20)
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defer cancel()
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defer cancel()
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cmd := exec.CommandContext(ctx, args[0], args[1:]...)
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cmd := exec.CommandContext(ctx, args[0], args[1:]...)
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cmd.Dir = dir
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cmd.Dir = dir
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cmd.Env = append(os.Environ(), envs...)
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output, err := cmd.CombinedOutput()
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output, err := cmd.CombinedOutput()
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return string(output), err
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return string(output), err
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@ -20,7 +20,7 @@ var _ = Describe("1 [基础测试]", func() {
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Expect(err).To(BeNil(), "找不到 sample")
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Expect(err).To(BeNil(), "找不到 sample")
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By("使用 goc build 命令编译")
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By("使用 goc build 命令编译")
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_, err = RunShortRunCmd(dir, []string{"goc", "build", "."})
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_, err = RunShortRunCmd([]string{"goc", "build", "."}, dir, nil)
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Expect(err).To(BeNil(), "goc build 运行错误")
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Expect(err).To(BeNil(), "goc build 运行错误")
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})
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})
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})
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})
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@ -31,12 +31,12 @@ var _ = Describe("1 [基础测试]", func() {
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Expect(err).To(BeNil(), "找不到 sample")
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Expect(err).To(BeNil(), "找不到 sample")
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By("启动 goc server")
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By("启动 goc server")
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lc := NewLongRunCmd(dir, []string{"goc", "server", "."})
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lc := NewLongRunCmd([]string{"goc", "server", "."}, dir, nil)
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lc.Run()
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lc.Run()
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defer lc.Stop()
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defer lc.Stop()
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By("使用 goc list 获取服务列表")
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By("使用 goc list 获取服务列表")
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output, err := RunShortRunCmd(dir, []string{"goc", "list"})
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output, err := RunShortRunCmd([]string{"goc", "list"}, dir, nil)
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Expect(err).To(BeNil(), "goc list 运行错误")
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Expect(err).To(BeNil(), "goc list 运行错误")
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Expect(output).To(ContainSubstring("REMOTEIP"), "goc list 输出应该包含 REMOTEIP")
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Expect(output).To(ContainSubstring("REMOTEIP"), "goc list 输出应该包含 REMOTEIP")
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})
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})
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Block a user