test(command): some test case

packages/command/src/__tests__/action.spec.ts

@@ -0,0 +1,48 @@
+import { jest } from '@jest/globals'
+import { Command } from 'commander'
+import { Action, runAction } from '../action.js'
+
+type Name = string
+type HelloArguments = [Name]
+type HelloOptions = { welcome: boolean }
+
+const initFn = jest.fn()
+const execFn = jest.fn((name: Name, welcome = false) => {
+  return `Hello, ${name}!${welcome ? ' Welcome!' : ''}`
+})
+const clearFn = jest.fn()
+
+class HelloAction extends Action<HelloArguments, HelloOptions> {
+  async initialize() {
+    initFn()
+  }
+  async execute() {
+    execFn(this.arguments[0], this.options.welcome)
+  }
+  async clear() {
+    clearFn()
+  }
+}
+
+describe('@vrn-deco/cli-command -> action.ts', () => {
+  test('No environment variables will throw an exception', async () => {
+    expect(runAction(HelloAction)('Hoyoe', { welcome: false }, new Command())).rejects.toThrow(
+      'command sub package can be invoked',
+    )
+  })
+
+  test('Can run action', async () => {
+    process.env.VRN_CLI_NAME = 'vrn-cli'
+    process.env.VRN_CLI_PACKAGE_NAME = '@vrn-deco/cli'
+    process.env.VRN_CLI_VERSION = '1.0.0'
+    process.env.VRN_CLI_HOME_PATH = '/home/vrn'
+    await expect(runAction(HelloAction)('Hoyoe', { welcome: false }, new Command())).resolves.not.toThrow()
+    expect(initFn).toBeCalled()
+    expect(execFn).toBeCalledWith('Hoyoe', false)
+    expect(execFn).toReturnWith('Hello, Hoyoe!')
+    expect(clearFn).toBeCalled()
+
+    await expect(runAction(HelloAction)('Hoyoe', { welcome: true }, new Command())).resolves.not.toThrow()
+    expect(execFn).toReturnWith('Hello, Hoyoe! Welcome!')
+  })
+})

packages/command/src/__tests__/index.spec.ts

@@ -0,0 +1,16 @@
+import { Command, prompt, registerCommands } from '../index.js'
+
+describe('@vrn-deco/cli-command -> index.ts', () => {
+  test('Correct export', () => {
+    expect(Command).toBeDefined()
+    expect(prompt).toBeDefined()
+    expect(registerCommands).toBeDefined()
+  })
+
+  test('can register children to parent command', () => {
+    const parent = new Command('parent')
+    const child1 = new Command('child1')
+    const child2 = new Command('child2')
+    expect(registerCommands(parent, [child1, child2])).toBe(parent)
+  })
+})