chore: start converting tests

package.json

@@ -38,6 +38,7 @@
     "semver": "^7.5.2",
     "supports-color": "^9.0.0",
     "tar": "^6.0.1",
+    "tsx": "^4.7.0",
     "typescript": "^5.0.4",
     "v8-compile-cache": "^2.3.0",
     "which": "^4.0.0"

tests/Use.test.ts

@@ -1,4 +1,5 @@
 import {ppath, xfs, npath}        from '@yarnpkg/fslib';
+import assert                     from 'node:assert';
 import process                    from 'node:process';
 import {describe, beforeEach, it} from 'node:test';
 
@@ -15,15 +16,15 @@ describe(`UseCommand`, () => {
       await xfs.writeJsonPromise(ppath.join(cwd, `package.json`), {
       });
 
-      await expect(runCli(cwd, [`use`, `[email protected]`])).resolves.toMatchObject({
+      assert.deepStrictEqual(await runCli(cwd, [`use`, `[email protected]`]), {
         exitCode: 0,
       });
 
-      await expect(xfs.readJsonPromise(ppath.join(cwd, `package.json`))).resolves.toMatchObject({
+      assert.deepStrictEqual(await xfs.readJsonPromise(ppath.join(cwd, `package.json`)), {
         packageManager: `[email protected]+sha256.bc5316aa110b2f564a71a3d6e235be55b98714660870c5b6b2d2d3f12587fb58`,
       });
 
-      await expect(runCli(cwd, [`yarn`, `--version`])).resolves.toMatchObject({
+      assert.deepStrictEqual(await runCli(cwd, [`yarn`, `--version`]), {
         exitCode: 0,
         stdout: `1.22.4\n`,
       });

tests/main.test.ts

@@ -1,4 +1,5 @@
 import {Filename, ppath, xfs, npath, PortablePath} from '@yarnpkg/fslib';
+import assert                                      from 'node:assert/strict';
 import process                                     from 'node:process';
 import {beforeEach, it}                            from 'node:test';
 
@@ -549,13 +550,13 @@ it(`should support running package managers with bin array`, async () => {
       packageManager: `[email protected]`,
     });
 
-    await expect(runCli(cwd, [`yarnpkg`, `--version`])).resolves.toMatchObject({
+    assert.deepEqual(await runCli(cwd, [`yarnpkg`, `--version`]), {
       stdout: `2.2.2\n`,
       stderr: ``,
       exitCode: 0,
     });
 
-    await expect(runCli(cwd, [`yarn`, `--version`])).resolves.toMatchObject({
+    assert.deepEqual(await runCli(cwd, [`yarn`, `--version`]), {
       stdout: `2.2.2\n`,
       stderr: ``,
       exitCode: 0,
@@ -569,11 +570,11 @@ it(`should handle parallel installs`, async () => {
       packageManager: `[email protected]`,
     });
 
-    await expect(Promise.all([
+    assert.deepEqual(await Promise.all([
       runCli(cwd, [`yarn`, `--version`]),
       runCli(cwd, [`yarn`, `--version`]),
       runCli(cwd, [`yarn`, `--version`]),
-    ])).resolves.toMatchObject([
+    ]), [
       {
         stdout: `2.2.2\n`,
         stderr: ``,
@@ -607,7 +608,7 @@ it(`should not override the package manager exit code`, async () => {
       process.exitCode = 42;
     `);
 
-    await expect(runCli(cwd, [`yarn`, `--version`])).resolves.toMatchObject({
+    assert.deepEqual(await runCli(cwd, [`yarn`, `--version`]), {
       exitCode: 42,
       stdout: ``,
       stderr: ``,
@@ -633,11 +634,12 @@ it(`should not preserve the process.exitCode when a package manager throws`, asy
       throw new Error('foo');
     `);
 
-    await expect(runCli(cwd, [`yarn`, `--version`])).resolves.toMatchObject({
+    const result = await runCli(cwd, [`yarn`, `--version`]);
+    assert.deepEqual(result, {
       exitCode: 1,
       stdout: ``,
-      stderr: expect.stringContaining(`foo`),
     });
+    assert.match(result.stderr, /foo/);
   });
 });
 
@@ -659,7 +661,7 @@ it(`should not set the exit code after successfully launching the package manage
       });
     `);
 
-    await expect(runCli(cwd, [`yarn`, `--version`])).resolves.toMatchObject({
+    assert.deepEqual(await runCli(cwd, [`yarn`, `--version`]), {
       exitCode: 42,
       stdout: ``,
       stderr: ``,
@@ -686,7 +688,7 @@ it(`should support package managers in ESM format`, async () => {
       type: `module`,
     });
 
-    await expect(runCli(cwd, [`yarn`, `--version`])).resolves.toMatchObject({
+    assert.deepEqual(await runCli(cwd, [`yarn`, `--version`]), {
       exitCode: 0,
       stdout: `42\n`,
       stderr: ``,