test(scripts/commit): add tests for git-cz bootstrap invocation

Author: jrolfs

Diff for: src/scripts/__tests__/__snapshots__/commit.js.snap

@@ -0,0 +1,45 @@
+// Jest Snapshot v1, https://goo.gl/fbAQLP
+
+exports[`commit bootstraps @commitlint/prompt 1`] = `
+Object {
+  cliPath: <PROJECT_ROOT>/node_modules/commitizen,
+  config: Object {
+    path: @commitlint/prompt,
+  },
+}
+`;
+
+exports[`commit bootstraps @commitlint/prompt 2`] = `node ../commit`;
+
+exports[`commit forwards arguments 1`] = `
+Object {
+  cliPath: <PROJECT_ROOT>/node_modules/commitizen,
+  config: Object {
+    path: @commitlint/prompt,
+  },
+}
+`;
+
+exports[`commit forwards arguments 2`] = `node ../commit --retry`;
+
+exports[`commit strips errant "commit" argument 1`] = `
+Object {
+  cliPath: <PROJECT_ROOT>/node_modules/commitizen,
+  config: Object {
+    path: @commitlint/prompt,
+  },
+}
+`;
+
+exports[`commit strips errant "commit" argument 2`] = `node ../commit`;
+
+exports[`commit strips errant "commit" argument and forwards arguments 1`] = `
+Object {
+  cliPath: <PROJECT_ROOT>/node_modules/commitizen,
+  config: Object {
+    path: @commitlint/prompt,
+  },
+}
+`;
+
+exports[`commit strips errant "commit" argument and forwards arguments 2`] = `node ../commit --retry`;

Diff for: src/scripts/__tests__/commit.js

@@ -0,0 +1,62 @@
+import cases from 'jest-in-case'
+import {
+  unquoteSerializer,
+  winPathSerializer,
+  relativePathSerializer,
+} from './helpers/serializers'
+
+jest.mock('commitizen/dist/cli/git-cz')
+
+expect.addSnapshotSerializer(unquoteSerializer)
+expect.addSnapshotSerializer(winPathSerializer)
+expect.addSnapshotSerializer(relativePathSerializer)
+
+cases(
+  'commit',
+  ({args = [], env = {}}) => {
+    // beforeEach
+    const {bootstrap: bootstrapMock} = require('commitizen/dist/cli/git-cz')
+
+    const originalArgv = process.argv
+    const originalExit = process.exit
+    const originalEnv = process.env
+
+    process.exit = jest.fn()
+    process.argv = ['node', '../commit', ...args]
+    process.env = env
+
+    try {
+      // tests
+      require('../commit')
+
+      expect(bootstrapMock).toHaveBeenCalledTimes(1)
+
+      const [call] = bootstrapMock.mock.calls
+      const [optionsArg, argsArg] = call
+
+      expect(optionsArg).toMatchSnapshot()
+      expect(argsArg.join(' ')).toMatchSnapshot()
+    } catch (error) {
+      throw error
+    } finally {
+      // afterEach
+      process.exit = originalExit
+      process.argv = originalArgv
+      process.env = originalEnv
+
+      jest.resetModules()
+    }
+  },
+  {
+    'bootstraps @commitlint/prompt': {},
+    'strips errant "commit" argument': {
+      args: ['commit'],
+    },
+    'forwards arguments': {
+      args: ['--retry'],
+    },
+    'strips errant "commit" argument and forwards arguments': {
+      args: ['commit', '--retry'],
+    },
+  },
+)