Merge pull request #20 from wagoid/add-tests

test: add tests for the action

.dockerignore

@@ -1,7 +1,10 @@
 node_modules
 .commitlintrc.yml
 commitlint.config.js
-.commitlintrc-with-lerna-scopes
 action.yml
 .github
 CHANGELOG.md
+coverage
+fixtures
+action.test.js
+testUtils.js

.github/workflows/ci.yml

@@ -0,0 +1,14 @@
+name: CI
+on: [push]
+
+jobs:
+  test:
+    name: Test
+    runs-on: ubuntu-latest
+    steps:
+      - uses: actions/checkout@v1
+      - uses: actions/setup-node@v1
+        with:
+          node-version: '10.x'
+      - run: npm install
+      - run: npm test --ci

.github/workflows/commitlint.yml

@@ -1,5 +1,5 @@
 name: Commitlint
-on: [pull_request]
+on: [push, pull_request]
 
 jobs:
   commitlint:
@@ -22,14 +22,3 @@ jobs:
       - uses: ./
         with:
           configFile: './.commitlintrc.yml'
-  commitlint-with-lerna-scopes:
-    runs-on: ubuntu-latest
-    env:
-      GITHUB_TOKEN: ${{ secrets.GITHUB_TOKEN }}
-    steps:
-      - uses: actions/checkout@v1
-      - run: sed -i -E "s/([']docker:.+)/Dockerfile/" ./action.yml
-      - run: echo -n '' > .dockerignore
-      - uses: ./
-        with:
-          configFile: './.commitlintrc-with-lerna-scopes.yml'

.github/workflows/test.yml

@@ -1,13 +0,0 @@
-name: Test
-on: [push]
-
-jobs:
-  commitlint:
-    runs-on: ubuntu-latest
-    env:
-      GITHUB_TOKEN: ${{ secrets.GITHUB_TOKEN }}
-    steps:
-      - uses: actions/checkout@v1
-      - run: sed -i -E "s/([']docker:.+)/Dockerfile/" ./action.yml
-      - run: echo -n '' > .dockerignore
-      - uses: ./

action.js

@@ -0,0 +1,143 @@
+const { existsSync } = require('fs')
+const { resolve } = require('path')
+const core = require('@actions/core')
+const github = require('@actions/github')
+const lint = require('@commitlint/lint')
+const { format } = require('@commitlint/format')
+const load = require('@commitlint/load')
+const gitRawCommits = require('git-raw-commits')
+
+const pullRequestEvent = 'pull_request'
+
+const { GITHUB_TOKEN, GITHUB_EVENT_NAME, GITHUB_SHA } = process.env
+
+const configPath = resolve(
+  process.env.GITHUB_WORKSPACE,
+  core.getInput('configFile'),
+)
+
+const { context: eventContext } = github
+
+const pushEventHasOnlyOneCommit = from => {
+  const gitEmptySha = '0000000000000000000000000000000000000000'
+
+  return from === gitEmptySha
+}
+
+const getRangeForPushEvent = () => {
+  let from = eventContext.payload.before
+  const to = GITHUB_SHA
+
+  if (eventContext.payload.forced) {
+    // When a commit is forced, "before" field from the push event data may point to a commit that doesn't exist
+    console.warn(
+      'Commit was forced, checking only the latest commit from push instead of a range of commit messages',
+    )
+    from = null
+  }
+
+  if (pushEventHasOnlyOneCommit(from)) {
+    from = null
+  }
+
+  return [from, to]
+}
+
+const getRangeForEvent = async () => {
+  if (GITHUB_EVENT_NAME !== pullRequestEvent) return getRangeForPushEvent()
+
+  const octokit = new github.GitHub(GITHUB_TOKEN)
+  const { owner, repo, number } = eventContext.issue
+  const { data: commits } = await octokit.pulls.listCommits({
+    owner,
+    repo,
+    pull_number: number,
+  })
+  const commitShas = commits.map(commit => commit.sha)
+  const [from] = commitShas
+  const to = commitShas[commitShas.length - 1]
+  // Git revision range doesn't include the "from" field in "git log", so for "from" we use the parent commit of PR's first commit
+  const fromParent = `${from}^1`
+
+  return [fromParent, to]
+}
+
+function getHistoryCommits(from, to) {
+  const options = {
+    from,
+    to,
+  }
+
+  if (core.getInput('firstParent') === 'true') {
+    options.firstParent = true
+  }
+
+  if (!from) {
+    options.maxCount = 1
+  }
+
+  return new Promise((resolve, reject) => {
+    const data = []
+
+    gitRawCommits(options)
+      .on('data', chunk => data.push(chunk.toString('utf-8')))
+      .on('error', reject)
+      .on('end', () => {
+        resolve(data)
+      })
+  })
+}
+
+function getOptsFromConfig(config) {
+  return {
+    parserOpts:
+      config.parserPreset != null && config.parserPreset.parserOpts != null
+        ? config.parserPreset.parserOpts
+        : {},
+    plugins: config.plugins != null ? config.plugins : {},
+    ignores: config.ignores != null ? config.ignores : [],
+    defaultIgnores:
+      config.defaultIgnores != null ? config.defaultIgnores : true,
+  }
+}
+
+const showLintResults = async ([from, to]) => {
+  const commits = await getHistoryCommits(from, to)
+  const config = existsSync(configPath)
+    ? await load({}, { file: configPath })
+    : {}
+  const opts = getOptsFromConfig(config)
+  const results = await Promise.all(
+    commits.map(commit => lint(commit, config.rules, opts)),
+  )
+  const formattedResults = format(
+    { results },
+    {
+      color: true,
+      helpUrl:
+        'https://github.com/conventional-changelog/commitlint/#what-is-commitlint',
+    },
+  )
+
+  if (formattedResults) {
+    core.setFailed(
+      `You have commit messages with errors\n\n${formattedResults}`,
+    )
+  } else {
+    console.log('Lint free! 🎉')
+  }
+}
+
+const exitWithMessage = message => error => {
+  core.setFailed(`${message}\n${error.message}\n${error.stack}`)
+}
+
+const commitLinterAction = () =>
+  getRangeForEvent()
+    .catch(
+      exitWithMessage("error trying to get list of pull request's commits"),
+    )
+    .then(showLintResults)
+    .catch(exitWithMessage('error running commitlint'))
+
+module.exports = commitLinterAction

action.test.js

@@ -0,0 +1,313 @@
+const { git } = require('@commitlint/test')
+const execa = require('execa')
+const td = require('testdouble')
+const {
+  updateEnvVars,
+  gitEmptyCommit,
+  getCommitHashes,
+  updatePushEnvVars,
+  createPushEventPayload,
+  createPullRequestEventPayload,
+  updatePullRequestEnvVars,
+} = require('./testUtils')
+
+const {
+  matchers: { contains },
+} = td
+
+const initialEnv = { ...process.env }
+
+const listCommits = td.func('listCommits')
+
+const runAction = () => {
+  const github = require('@actions/github')
+  class MockOctokit {
+    constructor() {
+      this.pulls = {
+        listCommits,
+      }
+    }
+  }
+
+  updateEnvVars({ GITHBU_TOKEN: 'test-github-token' })
+  td.replace(github, 'GitHub', MockOctokit)
+
+  return require('./action')()
+}
+
+describe('Commit Linter action', () => {
+  let core
+
+  beforeEach(() => {
+    core = require('@actions/core')
+    td.replace(core, 'getInput')
+    td.replace(core, 'setFailed')
+    td.when(core.getInput('configFile')).thenReturn('./commitlint.config.js')
+    td.when(core.getInput('firstParent')).thenReturn('true')
+  })
+
+  afterEach(() => {
+    td.reset()
+    process.env = initialEnv
+    jest.resetModules()
+  })
+
+  it('should fail for single push with incorrect message', async () => {
+    const cwd = await git.bootstrap('fixtures/conventional')
+    await gitEmptyCommit(cwd, 'wrong message')
+    const [to] = await getCommitHashes(cwd)
+    await createPushEventPayload(cwd, { to })
+    updatePushEnvVars(cwd, to)
+    td.replace(process, 'cwd', () => cwd)
+
+    await runAction()
+
+    td.verify(core.setFailed(contains('You have commit messages with errors')))
+  })
+
+  it('should pass for single push with correct message', async () => {
+    const cwd = await git.bootstrap('fixtures/conventional')
+    await gitEmptyCommit(cwd, 'chore: correct message')
+    const [to] = await getCommitHashes(cwd)
+    await createPushEventPayload(cwd, { to })
+    updatePushEnvVars(cwd, to)
+    td.replace(process, 'cwd', () => cwd)
+    td.replace(console, 'log')
+
+    await runAction()
+
+    td.verify(core.setFailed(), { times: 0, ignoreExtraArgs: true })
+    td.verify(console.log('Lint free! 🎉'))
+  })
+
+  it('should fail for push range with wrong messages', async () => {
+    const cwd = await git.bootstrap('fixtures/conventional')
+    await gitEmptyCommit(cwd, 'message from before push')
+    await gitEmptyCommit(cwd, 'wrong message 1')
+    await gitEmptyCommit(cwd, 'wrong message 2')
+    const [before, , to] = await getCommitHashes(cwd)
+    await createPushEventPayload(cwd, { before, to })
+    updatePushEnvVars(cwd, to)
+    td.replace(process, 'cwd', () => cwd)
+
+    await runAction()
+
+    td.verify(core.setFailed(contains('wrong message 1')))
+    td.verify(core.setFailed(contains('wrong message 2')))
+  })
+
+  it('should pass for push range with correct messages', async () => {
+    const cwd = await git.bootstrap('fixtures/conventional')
+    await gitEmptyCommit(cwd, 'message from before push')
+    await gitEmptyCommit(cwd, 'chore: correct message 1')
+    await gitEmptyCommit(cwd, 'chore: correct message 2')
+    const [before, , to] = await getCommitHashes(cwd)
+    await createPushEventPayload(cwd, { before, to })
+    updatePushEnvVars(cwd, to)
+    td.replace(process, 'cwd', () => cwd)
+    td.replace(console, 'log')
+
+    await runAction()
+
+    td.verify(core.setFailed(), { times: 0, ignoreExtraArgs: true })
+    td.verify(console.log('Lint free! 🎉'))
+  })
+
+  it('should lint only last commit for forced push', async () => {
+    const cwd = await git.bootstrap('fixtures/conventional')
+    await gitEmptyCommit(cwd, 'message from before push')
+    await gitEmptyCommit(cwd, 'wrong message 1')
+    await gitEmptyCommit(cwd, 'wrong message 2')
+    const [before, , to] = await getCommitHashes(cwd)
+    await createPushEventPayload(cwd, { before, to, forced: true })
+    updatePushEnvVars(cwd, to)
+    td.replace(process, 'cwd', () => cwd)
+    td.replace(console, 'warn')
+
+    await runAction()
+
+    td.verify(
+      console.warn(
+        'Commit was forced, checking only the latest commit from push instead of a range of commit messages',
+      ),
+    )
+    td.verify(core.setFailed(contains('wrong message 1')), { times: 0 })
+    td.verify(core.setFailed(contains('wrong message 2')))
+  })
+
+  it('should lint only last commit when "before" field is an empty sha', async () => {
+    const gitEmptySha = '0000000000000000000000000000000000000000'
+    const cwd = await git.bootstrap('fixtures/conventional')
+    await gitEmptyCommit(cwd, 'message from before push')
+    await gitEmptyCommit(cwd, 'wrong message 1')
+    await gitEmptyCommit(cwd, 'chore(WRONG): message 2')
+    const [before, , to] = await getCommitHashes(cwd)
+    await createPushEventPayload(cwd, { before: gitEmptySha, to })
+    updatePushEnvVars(cwd, to)
+    td.replace(process, 'cwd', () => cwd)
+
+    await runAction()
+
+    td.verify(core.setFailed(contains('wrong message 1')), { times: 0 })
+    td.verify(core.setFailed(contains('chore(WRONG): message 2')))
+  })
+
+  it('should fail for commit with scope that is not a lerna package', async () => {
+    const cwd = await git.bootstrap('fixtures/lerna-scopes')
+    td.when(core.getInput('configFile')).thenReturn('./commitlint.config.yml')
+    await gitEmptyCommit(cwd, 'chore(wrong): not including package scope')
+    const [to] = await getCommitHashes(cwd)
+    await createPushEventPayload(cwd, { to })
+    updatePushEnvVars(cwd, to)
+    td.replace(process, 'cwd', () => cwd)
+
+    await runAction()
+
+    td.verify(
+      core.setFailed(contains('chore(wrong): not including package scope')),
+    )
+  })
+
+  it('should pass for scope that is a lerna package', async () => {
+    const cwd = await git.bootstrap('fixtures/lerna-scopes')
+    td.when(core.getInput('configFile')).thenReturn('./commitlint.config.yml')
+    await gitEmptyCommit(cwd, 'chore(second-package): this works')
+    const [to] = await getCommitHashes(cwd)
+    await createPushEventPayload(cwd, { to })
+    updatePushEnvVars(cwd, to)
+    td.replace(process, 'cwd', () => cwd)
+    td.replace(console, 'log')
+
+    await runAction()
+
+    td.verify(console.log('Lint free! 🎉'))
+  })
+
+  it("should fail for commit that doesn't comply with jira rules", async () => {
+    const cwd = await git.bootstrap('fixtures/jira')
+    td.when(core.getInput('configFile')).thenReturn('./commitlint.config.js')
+    await gitEmptyCommit(cwd, 'ib-21212121212121: without jira ticket')
+    const [to] = await getCommitHashes(cwd)
+    await createPushEventPayload(cwd, { to })
+    updatePushEnvVars(cwd, to)
+    td.replace(process, 'cwd', () => cwd)
+
+    await runAction()
+
+    td.verify(
+      core.setFailed(contains('ib-21212121212121: without jira ticket')),
+    )
+    td.verify(
+      core.setFailed(
+        contains(
+          'ib-21212121212121 taskId must not be loonger than 9 characters',
+        ),
+      ),
+    )
+    td.verify(
+      core.setFailed(
+        contains('ib-21212121212121 taskId must be uppercase case'),
+      ),
+    )
+    td.verify(
+      core.setFailed(
+        contains('ib-21212121212121 commitStatus must be uppercase case'),
+      ),
+    )
+  })
+
+  it('should NOT consider commits from another branch', async () => {
+    const cwd = await git.bootstrap('fixtures/conventional')
+    await gitEmptyCommit(cwd, 'chore: commit before')
+    await gitEmptyCommit(cwd, 'chore: correct message')
+    await execa.command('git checkout -b another-branch', { cwd })
+    await gitEmptyCommit(cwd, 'wrong commit from another branch')
+    await execa.command('git checkout -', { cwd })
+    await execa.command('git merge --no-ff another-branch', { cwd })
+    const [before, , to] = await getCommitHashes(cwd)
+    await createPushEventPayload(cwd, { before, to })
+    updatePushEnvVars(cwd, to)
+    td.replace(process, 'cwd', () => cwd)
+    td.replace(console, 'log')
+
+    await runAction()
+
+    td.verify(console.log('Lint free! 🎉'))
+  })
+
+  it('should consider commits from another branch when firstParent is false', async () => {
+    const cwd = await git.bootstrap('fixtures/conventional')
+    await gitEmptyCommit(cwd, 'chore: commit before')
+    await gitEmptyCommit(cwd, 'chore: correct message')
+    await execa.command('git checkout -b another-branch', { cwd })
+    await gitEmptyCommit(cwd, 'wrong commit from another branch')
+    await execa.command('git checkout -', { cwd })
+    await execa.command('git merge --no-ff another-branch', { cwd })
+    const [before, , , to] = await getCommitHashes(cwd)
+    await createPushEventPayload(cwd, { before, to })
+    updatePushEnvVars(cwd, to)
+    td.replace(process, 'cwd', () => cwd)
+    td.when(core.getInput('firstParent')).thenReturn('false')
+
+    await runAction()
+
+    td.verify(core.setFailed(contains('wrong commit from another branch')))
+  })
+
+  it('should lint all commits from a pull request', async () => {
+    const cwd = await git.bootstrap('fixtures/conventional')
+    td.when(core.getInput('configFile')).thenReturn('./commitlint.config.js')
+    await gitEmptyCommit(cwd, 'message from before push')
+    await gitEmptyCommit(cwd, 'wrong message 1')
+    await gitEmptyCommit(cwd, 'wrong message 2')
+    await gitEmptyCommit(cwd, 'wrong message 3')
+    await createPullRequestEventPayload(cwd)
+    const [, first, second, to] = await getCommitHashes(cwd)
+    updatePullRequestEnvVars(cwd, to)
+    td.when(
+      listCommits({
+        owner: 'wagoid',
+        repo: 'commitlint-github-action',
+        pull_number: '1',
+      }),
+    ).thenResolve({
+      data: [first, second, to].map(sha => ({ sha })),
+    })
+    td.replace(process, 'cwd', () => cwd)
+
+    await runAction()
+
+    td.verify(core.setFailed(contains('message from before push')), {
+      times: 0,
+    })
+    td.verify(core.setFailed(contains('wrong message 1')))
+    td.verify(core.setFailed(contains('wrong message 2')))
+    td.verify(core.setFailed(contains('wrong message 3')))
+  })
+
+  it('should show an error message when failing to fetch commits', async () => {
+    const cwd = await git.bootstrap('fixtures/conventional')
+    td.when(core.getInput('configFile')).thenReturn('./commitlint.config.js')
+    await gitEmptyCommit(cwd, 'commit message')
+    await createPullRequestEventPayload(cwd)
+    const [to] = await getCommitHashes(cwd)
+    updatePullRequestEnvVars(cwd, to)
+    td.when(
+      listCommits({
+        owner: 'wagoid',
+        repo: 'commitlint-github-action',
+        pull_number: '1',
+      }),
+    ).thenReject(new Error('HttpError: Bad credentials'))
+    td.replace(process, 'cwd', () => cwd)
+
+    await runAction()
+
+    td.verify(
+      core.setFailed(
+        contains("error trying to get list of pull request's commits"),
+      ),
+    )
+    td.verify(core.setFailed(contains('HttpError: Bad credentials')))
+  })
+})

fixtures/conventional/commitlint.config.js

@@ -0,0 +1,3 @@
+module.exports = {
+  extends: ['@commitlint/config-conventional'],
+}

fixtures/jira/commitlint.config.js

@@ -0,0 +1,4 @@
+module.exports = {
+  plugins: ['commitlint-plugin-jira-rules'],
+  extends: ['jira'],
+}

fixtures/lerna-scopes/lerna.json

@@ -0,0 +1,5 @@
+{
+  "name": "fixture-lerna-scopes",
+  "version": "independent",
+  "packages": ["packages/*"]
+}

fixtures/lerna-scopes/packages/first-package/package.json

@@ -0,0 +1,6 @@
+{
+  "name": "first-package",
+  "version": "0.1.0",
+  "private": true,
+  "dependencies": {}
+}

fixtures/lerna-scopes/packages/second-package/package.json

@@ -0,0 +1,6 @@
+{
+  "name": "second-package",
+  "version": "0.1.0",
+  "private": true,
+  "dependencies": {}
+}

fixtures/payloads/push.json

@@ -0,0 +1,15 @@
+{
+  "after": "cb3c15aee3d0fb546fa1509eef4286e421529e1e",
+  "base_ref": null,
+  "before": "d33e92a269fea31eac29d2dcbe964902cf0aee61",
+  "commits": [],
+  "compare": "https://github.com/wagoid/commitlint-github-action/compare/d33e92a269fe...cb3c15aee3d0",
+  "created": false,
+  "deleted": false,
+  "forced": false,
+  "head_commit": {},
+  "pusher": {},
+  "ref": "refs/heads/master",
+  "repository": {},
+  "sender": {}
+}

jest.config.js

@@ -0,0 +1,9 @@
+// For a detailed explanation regarding each configuration property, visit:
+// https://jestjs.io/docs/en/configuration.html
+
+module.exports = {
+  // Automatically clear mock calls and instances between every test
+  clearMocks: true,
+  // The test environment that will be used for testing
+  testEnvironment: 'node',
+}

package.json

@@ -4,7 +4,7 @@
   "description": "commitlint github action",
   "main": "index.js",
   "scripts": {
-    "test": "echo \"Error: no test specified\" && exit 1",
+    "test": "NODE_PATH=./node_modules jest",
     "changelog": "conventional-changelog -p angular -i CHANGELOG.md -s"
   },
   "repository": {
@@ -31,10 +31,14 @@
     "lerna": "3.18.1"
   },
   "devDependencies": {
+    "@commitlint/test": "8.2.0",
     "conventional-changelog-cli": "2.0.23",
+    "execa": "3.4.0",
     "husky": "3.0.7",
+    "jest": "^24.9.0",
     "prettier": "1.18.2",
-    "pretty-quick": "1.11.1"
+    "pretty-quick": "1.11.1",
+    "testdouble": "3.12.4"
   },
   "husky": {
     "hooks": {

run.js

@@ -1,143 +1,3 @@
-const { existsSync } = require('fs')
-const { resolve } = require('path')
-const core = require('@actions/core')
-const github = require('@actions/github')
-const lint = require('@commitlint/lint')
-const { format } = require('@commitlint/format')
-const load = require('@commitlint/load')
-const gitRawCommits = require('git-raw-commits')
+const action = require('./action')
 
-const pullRequestEvent = 'pull_request'
-
-const { GITHUB_TOKEN, GITHUB_EVENT_NAME, GITHUB_SHA } = process.env
-
-const configPath = resolve(
-  process.env.GITHUB_WORKSPACE,
-  core.getInput('configFile'),
-)
-
-const { context: eventContext } = github
-
-const pushEventHasOnlyOneCommit = from => {
-  const gitEmptySha = '0000000000000000000000000000000000000000'
-
-  return from === gitEmptySha
-}
-
-const getRangeForPushEvent = () => {
-  let from = eventContext.payload.before
-  const to = GITHUB_SHA
-
-  if (eventContext.payload.forced) {
-    // When a commit is forced, "before" field from the push event data may point to a commit that doesn't exist
-    console.warn(
-      'Commit was forced, checking only the latest commit from push instead of a range of commit messages',
-    )
-    from = null
-  }
-
-  if (pushEventHasOnlyOneCommit(from)) {
-    from = null
-  }
-
-  return [from, to]
-}
-
-const getRangeForEvent = async () => {
-  if (GITHUB_EVENT_NAME !== pullRequestEvent) return getRangeForPushEvent()
-
-  const octokit = new github.GitHub(GITHUB_TOKEN)
-  const { owner, repo, number } = eventContext.issue
-  const { data: commits } = await octokit.pulls.listCommits({
-    owner,
-    repo,
-    pull_number: number,
-  })
-  const commitShas = commits.map(commit => commit.sha)
-  const [from] = commitShas
-  const to = commitShas[commitShas.length - 1]
-  // Git revision range doesn't include the "from" field in "git log", so for "from" we use the parent commit of PR's first commit
-  const fromParent = `${from}^1`
-
-  return [fromParent, to]
-}
-
-function getHistoryCommits(from, to) {
-  const options = {
-    from,
-    to,
-  }
-
-  if (core.getInput('firstParent') === 'true') {
-    options.firstParent = true
-  }
-
-  if (!from) {
-    options.maxCount = 1
-  }
-
-  return new Promise((resolve, reject) => {
-    const data = []
-
-    gitRawCommits(options)
-      .on('data', chunk => data.push(chunk.toString('utf-8')))
-      .on('error', reject)
-      .on('end', () => {
-        resolve(data)
-      })
-  })
-}
-
-function getOptsFromConfig(config) {
-  return {
-    parserOpts:
-      config.parserPreset != null && config.parserPreset.parserOpts != null
-        ? config.parserPreset.parserOpts
-        : {},
-    plugins: config.plugins != null ? config.plugins : {},
-    ignores: config.ignores != null ? config.ignores : [],
-    defaultIgnores:
-      config.defaultIgnores != null ? config.defaultIgnores : true,
-  }
-}
-
-const showLintResults = async ([from, to]) => {
-  const commits = await getHistoryCommits(from, to)
-  const config = existsSync(configPath)
-    ? await load({}, { file: configPath })
-    : {}
-  const opts = getOptsFromConfig(config)
-  const results = await Promise.all(
-    commits.map(commit => lint(commit, config.rules, opts)),
-  )
-  const formattedResults = format(
-    { results },
-    {
-      color: true,
-      helpUrl:
-        'https://github.com/conventional-changelog/commitlint/#what-is-commitlint',
-    },
-  )
-
-  if (formattedResults) {
-    core.setFailed(
-      `You have commit messages with errors\n\n${formattedResults}`,
-    )
-  } else {
-    console.log('Lint free! 🎉')
-  }
-}
-
-const exitWithMessage = message => error => {
-  core.setFailed(`${message}\n${error.message}\n${error.stack}`)
-}
-
-const main = () =>
-  getRangeForEvent()
-    .catch(
-      exitWithMessage("error trying to get list of pull request's commits"),
-    )
-    .then(showLintResults)
-    .catch(exitWithMessage('error running commitlint'))
-
-main()
+action()

scripts/release.sh

@@ -0,0 +1 @@
+image=$()

testUtils.js

@@ -0,0 +1,74 @@
+const path = require('path')
+const fs = require('fs')
+const { promisify } = require('util')
+const execa = require('execa')
+const td = require('testdouble')
+
+const writeFile = promisify(fs.writeFile)
+
+const updateEnvVars = (exports.updateEnvVars = envVars => {
+  Object.keys(envVars).forEach(key => {
+    process.env[key] = envVars[key]
+  })
+})
+
+exports.gitEmptyCommit = (cwd, message) =>
+  execa('git', ['commit', '--allow-empty', '-m', message], { cwd })
+
+exports.getCommitHashes = async cwd => {
+  const { stdout } = await execa.command('git log --pretty=%H', { cwd })
+  const hashes = stdout.split('\n').reverse()
+
+  return hashes
+}
+
+exports.updatePushEnvVars = (cwd, to) => {
+  updateEnvVars({
+    GITHUB_WORKSPACE: cwd,
+    GITHUB_EVENT_NAME: 'push',
+    GITHUB_SHA: to,
+  })
+}
+
+exports.createPushEventPayload = async (
+  cwd,
+  { before = null, to, forced = false },
+) => {
+  const payload = {
+    after: to,
+    before,
+    forced,
+  }
+  const eventPath = path.join(cwd, 'pushEventPayload.json')
+
+  updateEnvVars({ GITHUB_EVENT_PATH: eventPath })
+  await writeFile(eventPath, JSON.stringify(payload), 'utf8')
+}
+
+exports.createPullRequestEventPayload = async cwd => {
+  const payload = {
+    number: '1',
+    repository: {
+      owner: {
+        login: 'wagoid',
+      },
+      name: 'commitlint-github-action',
+    },
+  }
+
+  const eventPath = path.join(cwd, 'pullRequestEventPayload.json')
+
+  updateEnvVars({
+    GITHUB_EVENT_PATH: eventPath,
+    GITHUB_REPOSITORY: 'wagoid/commitlint-github-action',
+  })
+  await writeFile(eventPath, JSON.stringify(payload), 'utf8')
+}
+
+exports.updatePullRequestEnvVars = (cwd, to) => {
+  updateEnvVars({
+    GITHUB_WORKSPACE: cwd,
+    GITHUB_EVENT_NAME: 'pull_request',
+    GITHUB_SHA: to,
+  })
+}