test: cli list

packages/cli/src/list.js

@@ -13,9 +13,9 @@ export default async function listCommands() {
   let maxLength = 0
   const commandsHelp = []
 
-  for (const name in _commands) {
-    commandsHelp.push([_commands[name].usage, _commands[name].description])
-    maxLength = Math.max(maxLength, _commands[name].usage.length)
+  for (const command of _commands) {
+    commandsHelp.push([command.usage, command.description])
+    maxLength = Math.max(maxLength, command.usage.length)
   }
 
   const _cmds = commandsHelp.map(([cmd, description]) => {

packages/cli/test/unit/list.test.js

@@ -0,0 +1,57 @@
+
+import chalk from 'chalk'
+
+import listCommands from '../../src/list'
+import getCommand from '../../src/commands'
+import { indent, foldLines, colorize } from '../../src/utils/formatting'
+
+jest.mock('chalk', () => ({ green: jest.fn().mockImplementation(text => text) }))
+jest.mock('../../src/commands')
+jest.mock('../../src/utils/formatting')
+
+describe('list', () => {
+  beforeAll(() => {
+    const commands = {
+      dev: { usage: 'dev', description: 'dev desc' },
+      build: { usage: 'build', description: 'build desc' },
+      generate: { usage: 'generate', description: 'generate desc' },
+      start: { usage: 'start', description: 'start desc' },
+      help: { usage: 'help', description: 'help desc' }
+    }
+    indent.mockReturnValue(' ')
+    colorize.mockImplementation(text => text)
+    getCommand.mockImplementation(cmd => commands[cmd])
+    process.stderr.write = jest.fn()
+  })
+
+  test('should list all commands', async () => {
+    await listCommands()
+
+    expect(indent).toBeCalledTimes(5)
+    expect(indent).nthCalledWith(1, 7)
+    expect(indent).nthCalledWith(2, 5)
+    expect(indent).nthCalledWith(3, 2)
+    expect(indent).nthCalledWith(4, 5)
+    expect(indent).nthCalledWith(5, 6)
+
+    expect(chalk.green).toBeCalledTimes(5)
+    expect(chalk.green).nthCalledWith(1, 'dev')
+    expect(chalk.green).nthCalledWith(2, 'build')
+    expect(chalk.green).nthCalledWith(3, 'generate')
+    expect(chalk.green).nthCalledWith(4, 'start')
+    expect(chalk.green).nthCalledWith(5, 'help')
+
+    const spaces = [14, 4]
+    expect(foldLines).toBeCalledTimes(7)
+    expect(foldLines).nthCalledWith(1, 'dev dev desc', ...spaces)
+    expect(foldLines).nthCalledWith(2, 'build build desc', ...spaces)
+    expect(foldLines).nthCalledWith(3, 'generate generate desc', ...spaces)
+    expect(foldLines).nthCalledWith(4, 'start start desc', ...spaces)
+    expect(foldLines).nthCalledWith(5, 'help help desc', ...spaces)
+    expect(foldLines).nthCalledWith(6, 'Usage: nuxt <command> [--help|-h]', 2)
+    expect(foldLines).nthCalledWith(7, 'Commands:', 2)
+
+    expect(colorize).toBeCalledTimes(1)
+    expect(process.stderr.write).toBeCalledTimes(1)
+  })
+})