From 87a38b5a2d9e14514c83abb14612165c23eef81f Mon Sep 17 00:00:00 2001
From: Moshe Atlow <moshe@atlow.co.il>
Date: Sun, 2 Apr 2023 10:05:53 +0300
Subject: [PATCH] test_runner: hide failing tests title when all tests pass

---
 lib/internal/test_runner/reporter/spec.js             | 4 ++++
 test/message/test_runner_spec_reporter_successful.js  | 6 ++++++
 test/message/test_runner_spec_reporter_successful.out | 9 +++++++++
 3 files changed, 19 insertions(+)
 create mode 100644 test/message/test_runner_spec_reporter_successful.js
 create mode 100644 test/message/test_runner_spec_reporter_successful.out

diff --git a/lib/internal/test_runner/reporter/spec.js b/lib/internal/test_runner/reporter/spec.js
index 2e3ba834351970..4628cbe2fc3f03 100644
--- a/lib/internal/test_runner/reporter/spec.js
+++ b/lib/internal/test_runner/reporter/spec.js
@@ -121,6 +121,10 @@ class SpecReporter extends Transform {
     callback(null, this.#handleEvent({ type, data }));
   }
   _flush(callback) {
+    if (this.#failedTests.length === 0) {
+      callback(null, '');
+      return;
+    }
     const results = [`\n${colors['test:fail']}${symbols['test:fail']}failing tests:${white}\n`];
     for (let i = 0; i < this.#failedTests.length; i++) {
       ArrayPrototypePush(results, this.#formatTestReport(
diff --git a/test/message/test_runner_spec_reporter_successful.js b/test/message/test_runner_spec_reporter_successful.js
new file mode 100644
index 00000000000000..e5e21e29e15e3e
--- /dev/null
+++ b/test/message/test_runner_spec_reporter_successful.js
@@ -0,0 +1,6 @@
+// Flags: --no-warnings --test-reporter=spec
+'use strict';
+require('../common');
+const { it } = require('node:test');
+
+it('should pass', () => {});
diff --git a/test/message/test_runner_spec_reporter_successful.out b/test/message/test_runner_spec_reporter_successful.out
new file mode 100644
index 00000000000000..855778c777ec92
--- /dev/null
+++ b/test/message/test_runner_spec_reporter_successful.out
@@ -0,0 +1,9 @@
+* should pass *(*ms)*
+*ℹ tests 1*
+*ℹ suites 0*
+*ℹ pass 1*
+*ℹ fail 0*
+*ℹ cancelled 0*
+*ℹ skipped 0*
+*ℹ todo 0*
+*ℹ duration_ms *