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GeezerVison is showing github.com — test_runner: fix suite rerun edge case · nodejs/node@dc0d757

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  • lib/internal/test_runner
    • test.js
  • test
    • fixtures/test-runner
      • rerun.js
    • parallel
      • test-runner-test-rerun-failures.js
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‎lib/internal/test_runner/test.js‎

Copy file name to clipboardExpand all lines: lib/internal/test_runner/test.js
+7-1Lines changed: 7 additions & 1 deletion
Original file line numberDiff line numberDiff line change
@@ -777,7 +777,13 @@ class Test extends AsyncResource {
777777
loc: [child.line, child.column, child.file],
778778
}, noop);
779779
t.endTime = t.startTime = hrtime();
780-
t.start();
780+
// For suites, Suite.run() starts the subtests via SafePromiseAll.
781+
// Starting them here as well would run them twice, re-invoking the
782+
// synthetic children-creator against a now-incremented disambiguator
783+
// and producing spurious failures.
784+
if (this.reportedType !== 'suite') {
785+
t.start();
786+
}
781787
}
782788
};
783789
}
Collapse file

‎test/fixtures/test-runner/rerun.js‎

Copy file name to clipboardExpand all lines: test/fixtures/test-runner/rerun.js
+19Lines changed: 19 additions & 0 deletions
Original file line numberDiff line numberDiff line change
@@ -46,3 +46,22 @@ describe('describe rerun', { timeout: 1000, concurrency: 1000 }, () => {
4646
});
4747
test('a');
4848
});
49+
50+
51+
// Shared helper creates subtests at the same source location each time it's
52+
// called, producing ambiguous test identifiers (disambiguated with ":(N)"
53+
// suffixes in the rerun state file). Regression coverage for a bug where the
54+
// suite's synthetic rerun fn double-started its direct children, which then
55+
// re-invoked the synthetic descendant-creator against an already-incremented
56+
// disambiguator map and emitted spurious failures.
57+
function ambiguousHelper(t) {
58+
return Promise.all([
59+
t.test('shared sub A', () => {}),
60+
t.test('shared sub B', () => {}),
61+
]);
62+
}
63+
64+
describe('rerun with ambiguous shared helper', { timeout: 1000, concurrency: 1000 }, () => {
65+
test('first caller', (t) => ambiguousHelper(t));
66+
test('second caller', (t) => ambiguousHelper(t));
67+
});
Collapse file

‎test/parallel/test-runner-test-rerun-failures.js‎

Copy file name to clipboardExpand all lines: test/parallel/test-runner-test-rerun-failures.js
+41-22Lines changed: 41 additions & 22 deletions
Original file line numberDiff line numberDiff line change
@@ -27,6 +27,13 @@ const expectedStateFile = [
2727
'test/fixtures/test-runner/rerun.js:44:3': { passed_on_attempt: 0, name: 'passed on first attempt' },
2828
'test/fixtures/test-runner/rerun.js:47:3': { passed_on_attempt: 0, name: 'a' },
2929
'test/fixtures/test-runner/rerun.js:43:1': { passed_on_attempt: 0, name: 'describe rerun' },
30+
'test/fixtures/test-runner/rerun.js:59:7': { passed_on_attempt: 0, name: 'shared sub A' },
31+
'test/fixtures/test-runner/rerun.js:60:7': { passed_on_attempt: 0, name: 'shared sub B' },
32+
'test/fixtures/test-runner/rerun.js:65:3': { passed_on_attempt: 0, name: 'first caller' },
33+
'test/fixtures/test-runner/rerun.js:59:7:(1)': { passed_on_attempt: 0, name: 'shared sub A' },
34+
'test/fixtures/test-runner/rerun.js:60:7:(1)': { passed_on_attempt: 0, name: 'shared sub B' },
35+
'test/fixtures/test-runner/rerun.js:66:3': { passed_on_attempt: 0, name: 'second caller' },
36+
'test/fixtures/test-runner/rerun.js:64:1': { passed_on_attempt: 0, name: 'rerun with ambiguous shared helper' },
3037
},
3138
{
3239
'test/fixtures/test-runner/rerun.js:9:1': { passed_on_attempt: 0, name: 'ok' },
@@ -38,11 +45,17 @@ const expectedStateFile = [
3845
'test/fixtures/test-runner/rerun.js:39:1': { passed_on_attempt: 0, name: 'nested ambiguous (expectedAttempts=0)' },
3946
'test/fixtures/test-runner/rerun.js:30:16:(1)': { passed_on_attempt: 0, name: '2 levels deep' },
4047
'test/fixtures/test-runner/rerun.js:35:13:(1)': { passed_on_attempt: 0, name: 'ok' },
41-
'test/fixtures/test-runner/rerun.js:43:1': { passed_on_attempt: 0, name: 'describe rerun' },
42-
'test/fixtures/test-runner/rerun.js:44:3': { passed_on_attempt: 0, name: 'passed on first attempt' },
4348
'test/fixtures/test-runner/rerun.js:45:13': { passed_on_attempt: 0, name: 'nested' },
44-
'test/fixtures/test-runner/rerun.js:45:13:(1)': { passed_on_attempt: 1, name: 'nested' },
49+
'test/fixtures/test-runner/rerun.js:44:3': { passed_on_attempt: 0, name: 'passed on first attempt' },
4550
'test/fixtures/test-runner/rerun.js:47:3': { passed_on_attempt: 0, name: 'a' },
51+
'test/fixtures/test-runner/rerun.js:43:1': { passed_on_attempt: 0, name: 'describe rerun' },
52+
'test/fixtures/test-runner/rerun.js:59:7': { passed_on_attempt: 0, name: 'shared sub A' },
53+
'test/fixtures/test-runner/rerun.js:60:7': { passed_on_attempt: 0, name: 'shared sub B' },
54+
'test/fixtures/test-runner/rerun.js:65:3': { passed_on_attempt: 0, name: 'first caller' },
55+
'test/fixtures/test-runner/rerun.js:59:7:(1)': { passed_on_attempt: 0, name: 'shared sub A' },
56+
'test/fixtures/test-runner/rerun.js:60:7:(1)': { passed_on_attempt: 0, name: 'shared sub B' },
57+
'test/fixtures/test-runner/rerun.js:66:3': { passed_on_attempt: 0, name: 'second caller' },
58+
'test/fixtures/test-runner/rerun.js:64:1': { passed_on_attempt: 0, name: 'rerun with ambiguous shared helper' },
4659
},
4760
{
4861
'test/fixtures/test-runner/rerun.js:3:1': { passed_on_attempt: 2, name: 'should fail on first two attempts' },
@@ -53,15 +66,21 @@ const expectedStateFile = [
5366
'test/fixtures/test-runner/rerun.js:29:13': { passed_on_attempt: 0, name: 'nested' },
5467
'test/fixtures/test-runner/rerun.js:35:13': { passed_on_attempt: 0, name: 'ok' },
5568
'test/fixtures/test-runner/rerun.js:39:1': { passed_on_attempt: 0, name: 'nested ambiguous (expectedAttempts=0)' },
56-
'test/fixtures/test-runner/rerun.js:29:13:(1)': { passed_on_attempt: 2, name: 'nested' },
5769
'test/fixtures/test-runner/rerun.js:30:16:(1)': { passed_on_attempt: 0, name: '2 levels deep' },
70+
'test/fixtures/test-runner/rerun.js:29:13:(1)': { passed_on_attempt: 2, name: 'nested' },
5871
'test/fixtures/test-runner/rerun.js:35:13:(1)': { passed_on_attempt: 0, name: 'ok' },
5972
'test/fixtures/test-runner/rerun.js:40:1': { passed_on_attempt: 2, name: 'nested ambiguous (expectedAttempts=1)' },
60-
'test/fixtures/test-runner/rerun.js:43:1': { passed_on_attempt: 0, name: 'describe rerun' },
61-
'test/fixtures/test-runner/rerun.js:44:3': { passed_on_attempt: 0, name: 'passed on first attempt' },
6273
'test/fixtures/test-runner/rerun.js:45:13': { passed_on_attempt: 0, name: 'nested' },
63-
'test/fixtures/test-runner/rerun.js:45:13:(1)': { passed_on_attempt: 1, name: 'nested' },
74+
'test/fixtures/test-runner/rerun.js:44:3': { passed_on_attempt: 0, name: 'passed on first attempt' },
6475
'test/fixtures/test-runner/rerun.js:47:3': { passed_on_attempt: 0, name: 'a' },
76+
'test/fixtures/test-runner/rerun.js:43:1': { passed_on_attempt: 0, name: 'describe rerun' },
77+
'test/fixtures/test-runner/rerun.js:59:7': { passed_on_attempt: 0, name: 'shared sub A' },
78+
'test/fixtures/test-runner/rerun.js:60:7': { passed_on_attempt: 0, name: 'shared sub B' },
79+
'test/fixtures/test-runner/rerun.js:65:3': { passed_on_attempt: 0, name: 'first caller' },
80+
'test/fixtures/test-runner/rerun.js:59:7:(1)': { passed_on_attempt: 0, name: 'shared sub A' },
81+
'test/fixtures/test-runner/rerun.js:60:7:(1)': { passed_on_attempt: 0, name: 'shared sub B' },
82+
'test/fixtures/test-runner/rerun.js:66:3': { passed_on_attempt: 0, name: 'second caller' },
83+
'test/fixtures/test-runner/rerun.js:64:1': { passed_on_attempt: 0, name: 'rerun with ambiguous shared helper' },
6584
},
6685
];
6786

@@ -81,26 +100,26 @@ test('test should pass on third rerun', async () => {
81100
let { code, stdout, signal } = await common.spawnPromisified(process.execPath, args);
82101
assert.strictEqual(code, 1);
83102
assert.strictEqual(signal, null);
84-
assert.match(stdout, /pass 11/);
103+
assert.match(stdout, /pass 17/);
85104
assert.match(stdout, /fail 4/);
86-
assert.match(stdout, /suites 1/);
105+
assert.match(stdout, /suites 2/);
87106
assert.deepStrictEqual(await getStateFile(), expectedStateFile.slice(0, 1));
88107

89108
({ code, stdout, signal } = await common.spawnPromisified(process.execPath, args));
90109
assert.strictEqual(code, 1);
91110
assert.strictEqual(signal, null);
92-
assert.match(stdout, /pass 13/);
111+
assert.match(stdout, /pass 18/);
93112
assert.match(stdout, /fail 3/);
94-
assert.match(stdout, /suites 1/);
113+
assert.match(stdout, /suites 2/);
95114
assert.deepStrictEqual(await getStateFile(), expectedStateFile.slice(0, 2));
96115

97116

98117
({ code, stdout, signal } = await common.spawnPromisified(process.execPath, args));
99118
assert.strictEqual(code, 0);
100119
assert.strictEqual(signal, null);
101-
assert.match(stdout, /pass 18/);
120+
assert.match(stdout, /pass 21/);
102121
assert.match(stdout, /fail 0/);
103-
assert.match(stdout, /suites 1/);
122+
assert.match(stdout, /suites 2/);
104123
assert.deepStrictEqual(await getStateFile(), expectedStateFile);
105124
});
106125

@@ -110,32 +129,32 @@ test('test should pass on third rerun with `--test`', async () => {
110129
let { code, stdout, signal } = await common.spawnPromisified(process.execPath, args);
111130
assert.strictEqual(code, 1);
112131
assert.strictEqual(signal, null);
113-
assert.match(stdout, /pass 11/);
132+
assert.match(stdout, /pass 17/);
114133
assert.match(stdout, /fail 4/);
115-
assert.match(stdout, /suites 1/);
134+
assert.match(stdout, /suites 2/);
116135
assert.deepStrictEqual(await getStateFile(), expectedStateFile.slice(0, 1));
117136

118137
({ code, stdout, signal } = await common.spawnPromisified(process.execPath, args));
119138
assert.strictEqual(code, 1);
120139
assert.strictEqual(signal, null);
121-
assert.match(stdout, /pass 13/);
140+
assert.match(stdout, /pass 18/);
122141
assert.match(stdout, /fail 3/);
123-
assert.match(stdout, /suites 1/);
142+
assert.match(stdout, /suites 2/);
124143
assert.deepStrictEqual(await getStateFile(), expectedStateFile.slice(0, 2));
125144

126145

127146
({ code, stdout, signal } = await common.spawnPromisified(process.execPath, args));
128147
assert.strictEqual(code, 0);
129148
assert.strictEqual(signal, null);
130-
assert.match(stdout, /pass 18/);
149+
assert.match(stdout, /pass 21/);
131150
assert.match(stdout, /fail 0/);
132-
assert.match(stdout, /suites 1/);
151+
assert.match(stdout, /suites 2/);
133152
assert.deepStrictEqual(await getStateFile(), expectedStateFile);
134153
});
135154

136155
test('using `run` api', async () => {
137156
let stream = run({ files: [fixture], rerunFailuresFilePath: stateFile });
138-
stream.on('test:pass', common.mustCall(12));
157+
stream.on('test:pass', common.mustCall(19));
139158
stream.on('test:fail', common.mustCall(4));
140159

141160
// eslint-disable-next-line no-unused-vars
@@ -145,7 +164,7 @@ test('using `run` api', async () => {
145164

146165

147166
stream = run({ files: [fixture], rerunFailuresFilePath: stateFile });
148-
stream.on('test:pass', common.mustCall(14));
167+
stream.on('test:pass', common.mustCall(20));
149168
stream.on('test:fail', common.mustCall(3));
150169

151170
// eslint-disable-next-line no-unused-vars
@@ -155,7 +174,7 @@ test('using `run` api', async () => {
155174

156175

157176
stream = run({ files: [fixture], rerunFailuresFilePath: stateFile });
158-
stream.on('test:pass', common.mustCall(19));
177+
stream.on('test:pass', common.mustCall(23));
159178
stream.on('test:fail', common.mustNotCall());
160179

161180
// eslint-disable-next-line no-unused-vars

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