test: add some basic e2e tests

Author: danielroe

src/main.ts

@@ -21,6 +21,7 @@ export const main = defineCommand({
     ...cwdArgs,
     command: {
       type: 'positional',
+      required: false,
     },
   },
   subCommands: commands,

test/e2e/commands.spec.ts

@@ -0,0 +1,56 @@
+import type { TestFunction } from 'vitest'
+import type { commands } from '../../src/commands'
+
+import { spawnSync } from 'node:child_process'
+
+import { fileURLToPath } from 'node:url'
+import { describe, expect, it } from 'vitest'
+
+const fixtureDir = fileURLToPath(new URL('../../playground', import.meta.url))
+
+describe('commands', () => {
+  const tests: Record<keyof typeof commands, 'todo' | TestFunction<object>> = {
+    _dev: 'todo',
+    add: 'todo',
+    analyze: 'todo',
+    build: 'todo',
+    cleanup: 'todo',
+    devtools: 'todo',
+    module: 'todo',
+    prepare: 'todo',
+    preview: 'todo',
+    start: 'todo',
+    test: 'todo',
+    typecheck: 'todo',
+    upgrade: 'todo',
+    dev: 'todo',
+    generate: 'todo',
+    init: 'todo',
+    info: 'todo',
+  }
+
+  it('throws error if no command is provided', async () => {
+    const res = spawnSync('pnpm', ['nuxi'], {
+      cwd: fixtureDir,
+    })
+    expect(res.status).toBe(1)
+    expect(res.stderr.toString()).toBe('[error] No command specified.\n')
+  })
+
+  it('throws error if wrong command is provided', async () => {
+    const res = spawnSync('pnpm', ['nuxi', 'foo'], {
+      cwd: fixtureDir,
+    })
+    expect(res.status).toBe(1)
+    expect(res.stderr.toString()).toBe('[error] Unknown command `foo`\n')
+  })
+
+  const testsToRun = Object.entries(tests).filter(([_, value]) => value !== 'todo')
+  it.each(testsToRun)(`%s`, (_, test) => (test as () => Promise<void>)())
+
+  for (const [command, value] of Object.entries(tests)) {
+    if (value === 'todo') {
+      it.todo(command)
+    }
+  }
+})