chore(repo): test migration to vitest. phase 1

.config/vitest.config.mts

@@ -3,9 +3,13 @@ import path from 'node:path';
 
 export default defineConfig({
   test: {
-    // Store snapshots next to each test in a .snapshots folder
+    // Enable global APIs for CommonJS test files.
+    globals: true,
+    // Phase 1 packages use runtime-style test entrypoints.
+    include: ['test/test.{js,mjs,cjs,ts,mts,cts}'],
+    // Keep snapshots in the same location used by Ava.
     resolveSnapshotPath: (testPath, snapExt) =>
-      path.join(path.dirname(testPath), '.snapshots', path.basename(testPath) + snapExt)
+      path.join(path.dirname(testPath), 'snapshots', path.basename(testPath) + snapExt)
   },
   resolve: {
     // Allow importing the current package under test via `~package`

packages/beep/package.json

@@ -21,9 +21,9 @@
     "ci:coverage": "nyc pnpm test && nyc report --reporter=text-lcov > coverage.lcov",
     "ci:lint": "pnpm lint",
     "ci:lint:commits": "commitlint --from=${CIRCLE_BRANCH} --to=${CIRCLE_SHA1}",
-    "ci:test": "ava --verbose",
+    "ci:test": "pnpm test -- --reporter=verbose",
     "release": "pnpm --workspace-root package:release $(pwd)",
-    "test": "ava"
+    "test": "vitest --config ../../.config/vitest.config.mts run"
   },
   "files": [
     "lib/",
@@ -49,13 +49,5 @@
     "rollup": "^4.0.0-24",
     "strip-ansi": "^7.0.1"
   },
-  "types": "types/index.d.ts",
-  "ava": {
-    "files": [
-      "!**/fixtures/**",
-      "!**/helpers/**",
-      "!**/output/**",
-      "!**/recipes/**"
-    ]
-  }
+  "types": "types/index.d.ts"
 }

packages/beep/test/test.js

@@ -1,20 +1,24 @@
-const test = require('ava');
 const execa = require('execa');
 
 const options = { cwd: __dirname };
 
-test('pass', async (t) => {
+test('pass', async () => {
   const args = '--config fixtures/pass.config.js'.split(' ');
   const { stderr } = await execa('rollup', args, options);
   const { default: strip } = await import('strip-ansi');
 
-  t.snapshot(strip(stderr.replace(/\d+ms|[\d.]+s/, '<time>ms')));
+  expect(strip(stderr.replace(/\d+ms|[\d.]+s/, '<time>ms'))).toMatchSnapshot();
 });
 
-test('error', async (t) => {
+test('error', async () => {
   const args = '--config fixtures/error.config.js'.split(' ');
   const throws = async () => execa('rollup', args, options);
 
-  const { stderr } = await t.throwsAsync(throws);
-  t.truthy(stderr.indexOf('\x07'));
+  const error = await throws().then(
+    () => null,
+    (caught) => caught
+  );
+  expect(error).not.toBeNull();
+  const { stderr } = error;
+  expect(stderr.indexOf('\x07')).toBeTruthy();
 });

packages/buble/package.json

@@ -28,13 +28,13 @@
     "ci:coverage": "nyc pnpm test && nyc report --reporter=text-lcov > coverage.lcov",
     "ci:lint": "pnpm build && pnpm lint",
     "ci:lint:commits": "commitlint --from=${CIRCLE_BRANCH} --to=${CIRCLE_SHA1}",
-    "ci:test": "pnpm test -- --verbose",
+    "ci:test": "pnpm test -- --reporter=verbose",
     "prebuild": "del-cli dist",
     "prepare": "if [ ! -d 'dist' ]; then pnpm build; fi",
     "prerelease": "pnpm build",
     "pretest": "pnpm build",
     "release": "pnpm --workspace-root package:release $(pwd)",
-    "test": "ava",
+    "test": "vitest --config ../../.config/vitest.config.mts run",
     "test:ts": "tsc types/index.d.ts test/types.ts --noEmit"
   },
   "files": [
@@ -73,15 +73,5 @@
     "source-map": "^0.7.4",
     "typescript": "^4.8.3"
   },
-  "types": "./types/index.d.ts",
-  "ava": {
-    "workerThreads": false,
-    "files": [
-      "!**/fixtures/**",
-      "!**/output/**",
-      "!**/helpers/**",
-      "!**/recipes/**",
-      "!**/types.ts"
-    ]
-  }
+  "types": "./types/index.d.ts"
 }

packages/buble/test/test.js

@@ -1,4 +1,3 @@
-const test = require('ava');
 const rollup = require('rollup');
 
 const buble = require('..');
@@ -22,12 +21,14 @@ function getChunksFromBundle(bundle) {
     .then(getChunksFromGenerated);
 }
 
-test('transforms files', async (t) => {
+test('transforms files', async () => {
   const bundle = await rollup.rollup({
     input: `${__dirname}/fixtures/basic/main.js`,
     plugins: [buble()]
   });
   const generated = await getChunksFromBundle(bundle);
-  t.is(generated.length, 1);
-  t.is(generated[0].code, 'function main () { return 42; }\n\nexport { main as default };\n');
+  expect(generated.length).toBe(1);
+  expect(generated[0].code).toBe(
+    'function main () { return 42; }\n\nexport { main as default };\n'
+  );
 });

packages/data-uri/package.json

@@ -28,13 +28,13 @@
     "ci:coverage": "nyc pnpm test && nyc report --reporter=text-lcov > coverage.lcov",
     "ci:lint": "pnpm build && pnpm lint",
     "ci:lint:commits": "commitlint --from=${CIRCLE_BRANCH} --to=${CIRCLE_SHA1}",
-    "ci:test": "pnpm test -- --verbose",
+    "ci:test": "pnpm test -- --reporter=verbose",
     "prebuild": "del-cli dist",
     "prepare": "if [ ! -d 'dist' ]; then pnpm build; fi",
     "prerelease": "pnpm build",
     "pretest": "pnpm build --sourcemap",
     "release": "pnpm --workspace-root package:release $(pwd)",
-    "test": "ava",
+    "test": "vitest --config ../../.config/vitest.config.mts run",
     "test:ts": "tsc --noEmit"
   },
   "files": [
@@ -70,15 +70,5 @@
     "rollup": "^4.0.0-24",
     "typescript": "^4.8.3"
   },
-  "types": "./types/index.d.ts",
-  "ava": {
-    "workerThreads": false,
-    "files": [
-      "!**/fixtures/**",
-      "!**/output/**",
-      "!**/helpers/**",
-      "!**/recipes/**",
-      "!**/types.ts"
-    ]
-  }
+  "types": "./types/index.d.ts"
 }

packages/data-uri/test/fixtures/base64.js

@@ -1,4 +1,4 @@
 import batman from 'data:application/json;base64, eyAiYmF0bWFuIjogInRydWUiIH0=';
 
-t.truthy(batman.batman);
-t.snapshot(batman);
+expect(batman.batman).toBeTruthy();
+expect(batman).toMatchSnapshot();

packages/data-uri/test/fixtures/import.js

@@ -1,4 +1,4 @@
-import 'data:text/javascript, t.truthy(true);';
+import 'data:text/javascript, expect(true).toBeTruthy();';
 import { batman } from 'data:text/javascript, export const batman = true;\nconst joker = false;\nexport default joker;';
 
-t.snapshot(batman);
+expect(batman).toMatchSnapshot();

packages/data-uri/test/fixtures/json.js

@@ -1,4 +1,4 @@
 import batman from 'data:application/json, { "batman": "true" }';
 
-t.truthy(batman.batman);
-t.snapshot(batman);
+expect(batman.batman).toBeTruthy();
+expect(batman).toMatchSnapshot();

packages/data-uri/test/test.mjs

@@ -1,7 +1,7 @@
 import { createRequire } from 'module';
 import { fileURLToPath } from 'url';
 
-import test from 'ava';
+import { test, expect } from 'vitest';
 import { rollup } from 'rollup';
 
 import dataUri from 'current-package';
@@ -11,54 +11,55 @@
 const DIRNAME = fileURLToPath(new URL('./fixtures', import.meta.url));
 process.chdir(DIRNAME);
 
-test('json', async (t) => {
-  t.plan(3);
+test('json', async () => {
   const bundle = await rollup({
     input: 'json.js',
     plugins: [dataUri()]
   });
-  const { code } = await testBundle(t, bundle);
-  t.snapshot(code);
+  const { code } = await testBundle(undefined, bundle);
+  expect(code).toMatchSnapshot();
 });
 
-test('import', async (t) => {
-  t.plan(3);
+test('import', async () => {
   const bundle = await rollup({
     input: 'import.js',
     plugins: [dataUri()]
   });
-  const { code } = await testBundle(t, bundle);
-  t.snapshot(code);
+  const { code } = await testBundle(undefined, bundle);
+  expect(code).toMatchSnapshot();
 });
 
-test('bad json', async (t) => {
+test('bad json', async () => {
   const fn = () =>
     rollup({
       input: 'bad-json.js',
       plugins: [dataUri()]
     });
-  const { code, plugin, pluginCode } = await t.throwsAsync(fn);
-  t.snapshot({ code, plugin, pluginCode });
+  const error = await fn().then(
+    () => null,
+    (caught) => caught
+  );
+  expect(error).not.toBeNull();
+  const { code, plugin, pluginCode } = error;
+  expect({ code, plugin, pluginCode }).toMatchSnapshot();
 });
 
-test('base64', async (t) => {
-  t.plan(3);
+test('base64', async () => {
   const bundle = await rollup({
     input: 'base64.js',
     plugins: [dataUri()]
   });
-  const { code } = await testBundle(t, bundle);
-  t.snapshot(code);
+  const { code } = await testBundle(undefined, bundle);
+  expect(code).toMatchSnapshot();
 });
 
-test('works as CJS plugin', async (t) => {
-  t.plan(3);
+test('works as CJS plugin', async () => {
   const require = createRequire(import.meta.url);
   const dataUriCjs = require('current-package');
   const bundle = await rollup({
     input: 'json.js',
     plugins: [dataUriCjs()]
   });
-  const { code } = await testBundle(t, bundle);
-  t.snapshot(code);
+  const { code } = await testBundle(undefined, bundle);
+  expect(code).toMatchSnapshot();
 });