Add concurrent e2e test

e2e/__tests__/__snapshots__/circusConcurrent.test.ts.snap

@@ -0,0 +1,84 @@
+// Jest Snapshot v1, https://goo.gl/fbAQLP
+
+exports[`runs the tests in the correct order 1`] = `
+"  console.log
+    [[beforeAll]]
+
+      at log (__tests__/concurrent.test.js:12:29)
+
+  console.log
+    [[test one start]]
+
+      at log (__tests__/concurrent.test.js:12:29)
+
+  console.log
+    [[test three start]]
+
+      at log (__tests__/concurrent.test.js:12:29)
+
+  console.log
+    [[test five start]]
+
+      at log (__tests__/concurrent.test.js:12:29)
+
+  console.log
+    [[test six start]]
+
+      at log (__tests__/concurrent.test.js:12:29)
+
+  console.log
+    [[test seven (fails) start]]
+
+      at log (__tests__/concurrent.test.js:12:29)
+
+  console.log
+    [[test three end]]
+
+      at log (__tests__/concurrent.test.js:12:29)
+
+  console.log
+    [[test eight start]]
+
+      at log (__tests__/concurrent.test.js:12:29)
+
+  console.log
+    [[test one end]]
+
+      at log (__tests__/concurrent.test.js:12:29)
+
+  console.log
+    [[test nine start]]
+
+      at log (__tests__/concurrent.test.js:12:29)
+
+  console.log
+    [[test six end]]
+
+      at log (__tests__/concurrent.test.js:12:29)
+
+  console.log
+    [[test ten (fails) start]]
+
+      at log (__tests__/concurrent.test.js:12:29)
+
+  console.log
+    [[test eight end]]
+
+      at log (__tests__/concurrent.test.js:12:29)
+
+  console.log
+    [[test nine end]]
+
+      at log (__tests__/concurrent.test.js:12:29)
+
+  console.log
+    [[test five end]]
+
+      at log (__tests__/concurrent.test.js:12:29)
+
+  console.log
+    [[afterAll]]
+
+      at log (__tests__/concurrent.test.js:12:29)
+"
+`;

e2e/__tests__/circusConcurrent.test.ts

@@ -0,0 +1,24 @@
+/**
+ * Copyright (c) Meta Platforms, Inc. and affiliates.
+ *
+ * This source code is licensed under the MIT license found in the
+ * LICENSE file in the root directory of this source tree.
+ */
+import {skipSuiteOnJasmine} from '@jest/test-utils';
+import runJest, {json as runWithJson} from '../runJest';
+
+skipSuiteOnJasmine();
+
+it('runs the correct number of tests', () => {
+  const {json} = runWithJson('circus-concurrent', ['concurrent.test.js']);
+
+  expect(json.numTotalTests).toBe(10);
+  expect(json.numPassedTests).toBe(6);
+  expect(json.numFailedTests).toBe(2);
+  expect(json.numPendingTests).toBe(2);
+});
+
+it('runs the tests in the correct order', () => {
+  const {stdout} = runJest('circus-concurrent', ['concurrent.test.js']);
+  expect(stdout).toMatchSnapshot();
+});

e2e/circus-concurrent/__tests__/concurrent.test.js

@@ -0,0 +1,58 @@
+/**
+ * Copyright (c) Meta Platforms, Inc. and affiliates.
+ *
+ * This source code is licensed under the MIT license found in the
+ * LICENSE file in the root directory of this source tree.
+ */
+
+'use strict';
+
+const {setTimeout} = require('timers/promises');
+
+const marker = s => console.log(`[[${s}]]`);
+
+beforeAll(() => marker('beforeAll'));
+afterAll(() => marker('afterAll'));
+
+beforeEach(() => marker('beforeEach'));
+afterEach(() => marker('afterEach'));
+
+const testFn = (name, delay, fail) => {
+  return async () => {
+    marker(`test ${name} start`);
+    await setTimeout(delay);
+    if (fail) {
+      throw new Error(`${name} failed`);
+    }
+    expect(name).toBe(name);
+    expect.assertions(1);
+    marker(`test ${name} end`);
+  };
+};
+
+it.concurrent('one', testFn('one', 100));
+it.concurrent.skip('two (skipped)', testFn('two (skipped)', 100));
+
+describe('level 1', () => {
+  beforeEach(() => marker('beforeEach level 1'));
+  afterEach(() => marker('afterEach level 1'));
+
+  it.concurrent('three', testFn('three', 60));
+
+  it.concurrent.skip('four (skipped)', testFn('four (skipped)', 100));
+
+  describe('level 2', () => {
+    beforeEach(() => marker('beforeEach level 2'));
+    afterEach(() => marker('afterEach level 2'));
+    it.concurrent('five', testFn('five', 150));
+
+    it.concurrent('six', testFn('six', 100));
+  });
+
+  it.concurrent('seven (fails)', testFn('seven (fails)', 100, true));
+  it.concurrent('eight', testFn('eight', 50));
+});
+
+it.concurrent('nine', testFn('nine', 20));
+
+it.concurrent('ten (fails)', testFn('ten (fails)', 30, true));