test/parallel/test-runner-output.mjs

import * as common from '../common/index.mjs';
import * as fixtures from '../common/fixtures.mjs';
import * as snapshot from '../common/assertSnapshot.js';
import { describe, it } from 'node:test';
import { hostname } from 'node:os';

const skipForceColors =
  process.config.variables.icu_gyp_path !== 'tools/icu/icu-generic.gyp' ||
  process.config.variables.node_shared_openssl;

function replaceTestDuration(str) {
  return str
    .replaceAll(/duration_ms: [0-9.]+/g, 'duration_ms: *')
    .replaceAll(/duration_ms [0-9.]+/g, 'duration_ms *');
}

const color = '(\\[\\d+m)';
const stackTraceBasePath = new RegExp(`${color}\\(${process.cwd()}/?${color}(.*)${color}\\)`, 'g');

function replaceSpecDuration(str) {
  return str
    .replaceAll(/[0-9.]+ms/g, '*ms')
    .replaceAll(/duration_ms [0-9.]+/g, 'duration_ms *')
    .replace(stackTraceBasePath, '$3');
}

function replaceJunitDuration(str) {
  return str
    .replaceAll(/time="[0-9.]+"/g, 'time="*"')
    .replaceAll(/duration_ms [0-9.]+/g, 'duration_ms *')
    .replaceAll(hostname(), 'HOSTNAME')
    .replace(stackTraceBasePath, '$3');
}

function removeWindowsPathEscaping(str) {
  return common.isWindows ? str.replaceAll(/\\\\/g, '\\') : str;
}

function replaceTestLocationLine(str) {
  return str.replaceAll(/(js:)(\d+)(:\d+)/g, '$1(LINE)$3');
}

// The Node test coverage returns results for all files called by the test. This
// will make the output file change if files like test/common/index.js change.
// This transform picks only the first line and then the lines from the test
// file.
function pickTestFileFromLcov(str) {
  const lines = str.split(/\n/);
  const firstLineOfTestFile = lines.findIndex(
    (line) => line.startsWith('SF:') && line.trim().endsWith('output.js')
  );
  const lastLineOfTestFile = lines.findIndex(
    (line, index) => index > firstLineOfTestFile && line.trim() === 'end_of_record'
  );
  return (
    lines[0] + '\n' + lines.slice(firstLineOfTestFile, lastLineOfTestFile + 1).join('\n') + '\n'
  );
}

const defaultTransform = snapshot.transform(
  snapshot.replaceWindowsLineEndings,
  snapshot.replaceStackTrace,
  removeWindowsPathEscaping,
  snapshot.replaceFullPaths,
  snapshot.replaceWindowsPaths,
  replaceTestDuration,
  replaceTestLocationLine,
);
const specTransform = snapshot.transform(
  replaceSpecDuration,
  snapshot.replaceWindowsLineEndings,
  snapshot.replaceStackTrace,
);
const junitTransform = snapshot.transform(
  replaceJunitDuration,
  snapshot.replaceWindowsLineEndings,
  snapshot.replaceStackTrace,
);
const lcovTransform = snapshot.transform(
  snapshot.replaceWindowsLineEndings,
  snapshot.replaceStackTrace,
  snapshot.replaceFullPaths,
  snapshot.replaceWindowsPaths,
  pickTestFileFromLcov
);


const tests = [
  { name: 'test-runner/output/abort.js' },
  { name: 'test-runner/output/abort_suite.js' },
  { name: 'test-runner/output/abort_hooks.js' },
  { name: 'test-runner/output/describe_it.js' },
  { name: 'test-runner/output/describe_nested.js' },
  { name: 'test-runner/output/hooks.js' },
  { name: 'test-runner/output/hooks_spec_reporter.js', transform: specTransform },
  { name: 'test-runner/output/timeout_in_before_each_should_not_affect_further_tests.js' },
  { name: 'test-runner/output/hooks-with-no-global-test.js' },
  { name: 'test-runner/output/before-and-after-each-too-many-listeners.js' },
  { name: 'test-runner/output/before-and-after-each-with-timeout-too-many-listeners.js' },
  { name: 'test-runner/output/global_after_should_fail_the_test.js' },
  { name: 'test-runner/output/no_refs.js' },
  { name: 'test-runner/output/no_tests.js' },
  { name: 'test-runner/output/only_tests.js' },
  { name: 'test-runner/output/dot_reporter.js' },
  { name: 'test-runner/output/junit_reporter.js', transform: junitTransform },
  { name: 'test-runner/output/spec_reporter_successful.js', transform: specTransform },
  { name: 'test-runner/output/spec_reporter.js', transform: specTransform },
  { name: 'test-runner/output/spec_reporter_cli.js', transform: specTransform },
  process.features.inspector ? { name: 'test-runner/output/lcov_reporter.js', transform: lcovTransform } : false,
  { name: 'test-runner/output/output.js' },
  { name: 'test-runner/output/output_cli.js' },
  { name: 'test-runner/output/name_pattern.js' },
  { name: 'test-runner/output/name_pattern_with_only.js' },
  { name: 'test-runner/output/unresolved_promise.js' },
  { name: 'test-runner/output/default_output.js', transform: specTransform, tty: true },
  { name: 'test-runner/output/arbitrary-output.js' },
  { name: 'test-runner/output/async-test-scheduling.mjs' },
  !skipForceColors ? {
    name: 'test-runner/output/arbitrary-output-colored.js',
    transform: snapshot.transform(specTransform, replaceTestDuration), tty: true
  } : false,
  { name: 'test-runner/output/dot_output_custom_columns.js', transform: specTransform, tty: true },
  {
    name: 'test-runner/output/tap_escape.js',
    transform: snapshot.transform(
      snapshot.replaceWindowsLineEndings,
      replaceTestDuration,
    ),
  },
  process.features.inspector ? { name: 'test-runner/output/coverage_failure.js' } : false,
]
.filter(Boolean)
.map(({ name, tty, transform }) => ({
  name,
  fn: common.mustCall(async () => {
    await snapshot.spawnAndAssert(fixtures.path(name), transform ?? defaultTransform, { tty });
  }),
}));

describe('test runner output', { concurrency: true }, () => {
  for (const { name, fn } of tests) {
    it(name, fn);
  }
});