test: use sync file in test-runner-output

Author: pmarchini

test/fixtures/test-runner/bailout/parallel-output/long-running-test.test.mjs

@@ -1,14 +1,18 @@
+import { writeFile } from 'node:fs/promises';
 import { describe, it } from 'node:test';
+import { setTimeout } from 'node:timers/promises';
+
+const testSyncPath = process.env.__TEST_SYNC_PATH__;
+const testSyncFile = process.env.__TEST_SYNC_FILE__;
 
 describe('long-running-test', async () => {
   it('first', async (t) => {
-    t.assert.ok(true, 'First test passed');
-  });
+    // Create a file to signal that the second test has started
+    writeFile(`${testSyncPath}/${testSyncFile}`, 'file content');
 
-  it('second', async () => {
     while (true) {
       // a long running test
-      await new Promise((resolve) => setTimeout(resolve, 2500));
+      await setTimeout(5000);
     }
     throw new Error('Second test should not run');
   });

test/fixtures/test-runner/bailout/parallel-output/test-with-setup.test.mjs

@@ -1,9 +1,24 @@
-import { describe, it, before } from 'node:test';
+import { existsSync } from 'node:fs';
+import { describe, it } from 'node:test';
+
+const testSyncPath = process.env.__TEST_SYNC_PATH__;
+const testSyncFile = process.env.__TEST_SYNC_FILE__;
 
 describe('test-with-setup', { concurrency: false }, () => {
-  before(async () => {
-    // Give some time to the concurrent test to start
-    await new Promise((resolve) => setTimeout(resolve, 2500));
+  it('awaits second test to start running before passing', async (t) => {
+    // Wait for the second test to run and create the file
+    await t.waitFor(
+      () => {
+        const exist = existsSync(`${testSyncPath}/${testSyncFile}`);
+        if (!exist) {
+          throw new Error('Second file does not exist yet');
+        }
+      },
+      {
+        interval: 1000,
+        timeout: 60_000,
+      },
+    );
   });
 
   it('first', async () => {

test/fixtures/test-runner/output/bail-concurrent-spec.snapshot

@@ -1,8 +1,11 @@
-▶ long-running-test
-  ✔ first (*ms)
+▶ long-running-test.test.mjs
 ▶ test-with-setup
+  ✔ awaits second test to start running before passing (*ms)
   ✖ first (*ms)
     Error: First test failed
+        *
+        *
+        *
         *
         *
         *
@@ -11,11 +14,11 @@
         *
 
 ✖ Bail out!
-ℹ tests 3
+ℹ tests 4
 ℹ suites 1
 ℹ pass 1
 ℹ fail 1
-ℹ cancelled 1
+ℹ cancelled 2
 ℹ skipped 0
 ℹ todo 0
 ℹ duration_ms *
@@ -25,6 +28,9 @@
 *
 ✖ first (*ms)
   Error: First test failed
+      *
+      *
+      *
       *
       *
       *

test/fixtures/test-runner/output/bail-concurrent-tap.snapshot

@@ -1,14 +1,14 @@
 TAP version 13
-# Subtest: long-running-test
-    # Subtest: first
-    ok 1 - first
+# Subtest: long-running-test.test.mjs
+# Subtest: test-with-setup
+    # Subtest: awaits second test to start running before passing
+    ok 1 - awaits second test to start running before passing
       ---
       duration_ms: *
       type: 'test'
       ...
-# Subtest: test-with-setup
     # Subtest: first
-    not ok 1 - first
+    not ok 2 - first
       ---
       duration_ms: *
       type: 'test'
@@ -17,6 +17,9 @@ TAP version 13
       error: 'First test failed'
       code: 'ERR_TEST_FAILURE'
       stack: |-
+        *
+        *
+        *
         *
         *
         *
@@ -25,14 +28,14 @@ TAP version 13
         *
       ...
     # Subtest: second
-    1..2
+    1..3
 Bail out!
-1..1
-# tests 3
+1..2
+# tests 4
 # suites 1
 # pass 1
 # fail 1
-# cancelled 1
+# cancelled 2
 # skipped 0
 # todo 0
 # duration_ms *

test/parallel/test-runner-output.mjs

@@ -5,6 +5,9 @@ import { describe, it } from 'node:test';
 import { hostname } from 'node:os';
 import { chdir, cwd } from 'node:process';
 import { fileURLToPath } from 'node:url';
+import tmpdir from '../common/tmpdir.js';
+
+tmpdir.refresh();
 
 const skipForceColors =
   process.config.variables.icu_gyp_path !== 'tools/icu/icu-generic.gyp' ||
@@ -298,20 +301,29 @@ const tests = [
   {
     name: 'test-runner/output/bail-concurrent-spec.mjs',
     transform: specTransform,
+    env: {
+      __TEST_SYNC_PATH__: tmpdir.path,
+      __TEST_SYNC_FILE__: 'bail-concurrent-spec'
+    },
   },
   {
     name: 'test-runner/output/bail-sequential-spec.js',
     transform: specTransform,
   },
-  { name: 'test-runner/output/bail-concurrent-tap.mjs' },
-
+  {
+    name: 'test-runner/output/bail-concurrent-tap.mjs',
+    env: {
+      __TEST_SYNC_PATH__: tmpdir.path,
+      __TEST_SYNC_FILE__: 'bail-concurrent-tap'
+    },
+  },
   { name: 'test-runner/output/bail-sequential-tap.js' },
 ]
 .filter(Boolean)
-.map(({ flags, name, tty, transform }) => ({
+.map(({ flags, name, tty, transform, env }) => ({
   name,
   fn: common.mustCall(async () => {
-    await snapshot.spawnAndAssert(fixtures.path(name), transform ?? defaultTransform, { tty, flags });
+    await snapshot.spawnAndAssert(fixtures.path(name), transform ?? defaultTransform, { tty, flags, env });
   }),
 }));