test_runner: add passed, attempt, and diagnostic to SuiteContext

doc/api/test.md

@@ -3875,7 +3875,9 @@ added: v25.0.0
 
 * Type: {number}
 
-Number of times the test has been attempted.
+The attempt number of the test. This value is zero-based, so the first attempt is `0`,
+the second attempt is `1`, and so on. This property is useful in conjunction with the
+`--test-rerun-failures` option to determine which attempt the test is currently running.
 
 ### `context.workerId`
 
@@ -4230,6 +4232,45 @@ added:
 
 Can be used to abort test subtasks when the test has been aborted.
 
+### `context.passed`
+
+<!-- YAML
+added: REPLACEME
+-->
+
+* Type: {boolean}
+
+Indicates whether the suite and all of its subtests have passed.
+
+### `context.attempt`
+
+<!-- YAML
+added: REPLACEME
+-->
+
+* Type: {number}
+
+The attempt number of the suite. This value is zero-based, so the first attempt is `0`,
+the second attempt is `1`, and so on. This property is useful in conjunction with the
+`--test-rerun-failures` option to determine the attempt number of the current run.
+
+### `context.diagnostic(message)`
+
+<!-- YAML
+added: REPLACEME
+-->
+
+* `message` {string} A diagnostic message to output.
+
+Output a diagnostic message. This is typically used for logging information
+about the current suite or its tests.
+
+```js
+test.describe('my suite', (suite) => {
+  suite.diagnostic('Suite diagnostic message');
+});
+```
+
 [TAP]: https://testanything.org/
 [`--experimental-test-coverage`]: cli.md#--experimental-test-coverage
 [`--experimental-test-module-mocks`]: cli.md#--experimental-test-module-mocks

lib/internal/test_runner/test.js

@@ -494,6 +494,18 @@ class SuiteContext {
   get fullName() {
     return getFullName(this.#suite);
   }
+
+  get passed() {
+    return this.#suite.passed;
+  }
+
+  get attempt() {
+    return this.#suite.attempt ?? 0;
+  }
+
+  diagnostic(message) {
+    this.#suite.diagnostic(message);
+  }
 }
 
 function parseExpectFailure(expectFailure) {

test/parallel/test-runner-test-fullname.js

@@ -9,6 +9,11 @@ before(common.mustCall((t) => {
 
 suite('suite', common.mustCall((t) => {
   assert.strictEqual(t.fullName, 'suite');
+  // Test new SuiteContext properties
+  assert.strictEqual(typeof t.passed, 'boolean');
+  assert.strictEqual(t.attempt, 0);
+  // diagnostic() can be called to add diagnostic output
+  t.diagnostic('Suite diagnostic message');
 
   test('test', (t) => {
     assert.strictEqual(t.fullName, 'suite > test');
@@ -26,3 +31,18 @@ suite('suite', common.mustCall((t) => {
 test((t) => {
   assert.strictEqual(t.fullName, '<anonymous>');
 });
+
+// Test SuiteContext passed, attempt, and diagnostic properties
+suite('suite with context checks', common.mustCall((ctx) => {
+  assert.strictEqual(ctx.fullName, 'suite with context checks');
+  assert.strictEqual(typeof ctx.passed, 'boolean');
+  assert.strictEqual(ctx.attempt, 0);
+  // Verify diagnostic method is callable
+  ctx.diagnostic('Test diagnostic message in suite');
+
+  test('child test', () => {
+    // Verify properties are accessible in nested test
+    assert.strictEqual(typeof ctx.passed, 'boolean');
+    assert.strictEqual(ctx.attempt, 0);
+  });
+}));