test: add new CLI test fixture

Author: chenjiahan

packages/rstack/test/cli/specify-config/index.test.ts

@@ -1,14 +1,11 @@
 import { rm } from 'node:fs/promises';
 import path from 'node:path';
-import { expect, test } from 'rstack/test';
-import { execCli, getDistFiles, getFileContent } from '#test-helpers';
+import { getDistFiles, getFileContent, test } from '#test-helpers';
 
-const cwd = import.meta.dirname;
-
-test('should build with rstack --config', async () => {
+test('should build with rstack --config', async ({ cwd, execCli, expect }) => {
   await rm(path.join(cwd, 'dist'), { recursive: true, force: true });
 
-  execCli(['--config', './custom.config.ts', 'build'], { cwd });
+  execCli(['--config', './custom.config.ts', 'build']);
 
   const files = await getDistFiles(path.join(cwd, 'dist'));
   const output = getFileContent(files, 'static/js/index.js');

packages/rstack/test/config/define-app/index.test.ts

@@ -1,17 +1,15 @@
 import { rm } from 'node:fs/promises';
 import path from 'node:path';
-import { expect, test } from 'rstack/test';
-import { execCli, getDistFiles, getFileContent } from '#test-helpers';
+import { getDistFiles, getFileContent, test } from '#test-helpers';
 
-const cwd = import.meta.dirname;
 const expectedText = 'define.app works';
 
-test('should build app with define.app config', async () => {
+test('should build app with define.app config', async ({ cwd, execCli, expect }) => {
   const distPath = path.join(cwd, 'dist');
   await rm(distPath, { recursive: true, force: true });
 
   try {
-    execCli(['build'], { cwd });
+    execCli(['build']);
 
     const files = await getDistFiles(distPath);
     const output = getFileContent(files, 'static/js/index.js');

packages/rstack/test/config/define-lib/index.test.ts

@@ -1,16 +1,14 @@
 import { rm } from 'node:fs/promises';
 import path from 'node:path';
-import { expect, test } from 'rstack/test';
-import { execCli, getDistFiles, getFileContent } from '#test-helpers';
+import { getDistFiles, getFileContent, test } from '#test-helpers';
 
-const cwd = import.meta.dirname;
 const expectedText = 'define.lib works';
 
-test('should build lib with define.lib config', async () => {
+test('should build lib with define.lib config', async ({ cwd, execCli, expect }) => {
   const distPath = path.join(cwd, 'dist');
   await rm(distPath, { recursive: true, force: true });
 
-  execCli(['lib'], { cwd });
+  execCli(['lib']);
 
   const files = await getDistFiles(distPath);
   const output = getFileContent(files, 'index.js');

packages/rstack/test/helpers/cli.ts

@@ -3,6 +3,8 @@ import path from 'node:path';
 
 const RSTACK_BIN_PATH = path.join(import.meta.dirname, '../../bin/rs.js');
 
+export type ExecCli = (args: string[], options?: ExecFileSyncOptions) => string;
+
 export const execCli = (args: string[], options: ExecFileSyncOptions = {}): string => {
   const output = execFileSync(process.execPath, [RSTACK_BIN_PATH, ...args], {
     ...options,

packages/rstack/test/helpers/cliTest.ts

@@ -0,0 +1,28 @@
+import path from 'node:path';
+import { test as baseTest } from 'rstack/test';
+import { execCli as baseExecCli, type ExecCli } from './cli.ts';
+
+export type CliTestFixtures = {
+  cwd: string;
+  execCli: ExecCli;
+};
+
+type CliTest = ReturnType<typeof baseTest.extend<CliTestFixtures>>;
+
+export const test: CliTest = baseTest.extend<CliTestFixtures>({
+  cwd: async ({ expect }, use) => {
+    const { testPath } = expect.getState();
+
+    if (!testPath) {
+      throw new Error('Unable to resolve current test file path from expect state.');
+    }
+
+    await use(path.dirname(testPath));
+  },
+  execCli: async ({ cwd }, use) => {
+    const execCli: ExecCli = (args, options = {}) =>
+      baseExecCli(args, { ...options, cwd: options.cwd ?? cwd });
+
+    await use(execCli);
+  },
+});

packages/rstack/test/helpers/index.ts

@@ -1,2 +1,3 @@
 export * from './cli.ts';
+export * from './cliTest.ts';
 export * from './file.ts';