All files / lib/internal/main test_runner.js

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'use strict';
const {
  ArrayFrom,
  ArrayPrototypeFilter,
  ArrayPrototypeIncludes,
  ArrayPrototypePush,
  ArrayPrototypeSlice,
  ArrayPrototypeSort,
  Promise,
  SafeSet,
} = primordials;
const {
  prepareMainThreadExecution,
} = require('internal/bootstrap/pre_execution');
const { spawn } = require('child_process');
const { readdirSync, statSync } = require('fs');
const console = require('internal/console/global');
const {
  codes: {
    ERR_TEST_FAILURE,
  },
} = require('internal/errors');
const test = require('internal/test_runner/harness');
const { kSubtestsFailed } = require('internal/test_runner/test');
const {
  isSupportedFileType,
  doesPathMatchFilter,
} = require('internal/test_runner/utils');
const { basename, join, resolve } = require('path');
const kFilterArgs = ['--test'];
 
prepareMainThreadExecution(false);
markBootstrapComplete();
 
// TODO(cjihrig): Replace this with recursive readdir once it lands.
function processPath(path, testFiles, options) {
  const stats = statSync(path);
 
  if (stats.isFile()) {
    if (options.userSupplied ||
        (options.underTestDir && isSupportedFileType(path)) ||
        doesPathMatchFilter(path)) {
      testFiles.add(path);
    }
  } else if (stats.isDirectory()) {
    const name = basename(path);
 
    if (!options.userSupplied && name === 'node_modules') {
      return;
    }
 
    // 'test' directories get special treatment. Recursively add all .js,
    // .cjs, and .mjs files in the 'test' directory.
    const isTestDir = name === 'test';
    const { underTestDir } = options;
    const entries = readdirSync(path);
 
    if (isTestDir) {
      options.underTestDir = true;
    }
 
    options.userSupplied = false;
 
    for (let i = 0; i < entries.length; i++) {
      processPath(join(path, entries[i]), testFiles, options);
    }
 
    options.underTestDir = underTestDir;
  }
}
 
function createTestFileList() {
  const cwd = process.cwd();
  const hasUserSuppliedPaths = process.argv.length > 1;
  const testPaths = hasUserSuppliedPaths ?
    ArrayPrototypeSlice(process.argv, 1) : [cwd];
  const testFiles = new SafeSet();
 
  try {
    for (let i = 0; i < testPaths.length; i++) {
      const absolutePath = resolve(testPaths[i]);
 
      processPath(absolutePath, testFiles, { userSupplied: true });
    }
  } catch (err) {
    if (err?.code === 'ENOENT') {
      console.error(`Could not find '${err.path}'`);
      process.exit(1);
    }

    throw err;
  }
 
  return ArrayPrototypeSort(ArrayFrom(testFiles));
}
 
function filterExecArgv(arg) {
  return !ArrayPrototypeIncludes(kFilterArgs, arg);
}
 
function runTestFile(path) {
  return test(path, () => {
    return new Promise((resolve, reject) => {
      const args = ArrayPrototypeFilter(process.execArgv, filterExecArgv);
      ArrayPrototypePush(args, path);
 
      const child = spawn(process.execPath, args);
      // TODO(cjihrig): Implement a TAP parser to read the child's stdout
      // instead of just displaying it all if the child fails.
      let stdout = '';
      let stderr = '';
      let err;
 
      child.on('error', (error) => {
        err = error;
      });
 
      child.stdout.setEncoding('utf8');
      child.stderr.setEncoding('utf8');
 
      child.stdout.on('data', (chunk) => {
        stdout += chunk;
      });
 
      child.stderr.on('data', (chunk) => {
        stderr += chunk;
      });
 
      child.once('exit', (code, signal) => {
        if (code !== 0 || signal !== null) {
          if (!err) {
            err = new ERR_TEST_FAILURE('test failed', kSubtestsFailed);
            err.exitCode = code;
            err.signal = signal;
            err.stdout = stdout;
            err.stderr = stderr;
            // The stack will not be useful since the failures came from tests
            // in a child process.
            err.stack = undefined;
          }
 
          return reject(err);
        }
 
        resolve();
      });
    });
  });
}
 
(async function main() {
  const testFiles = createTestFileList();
 
  for (let i = 0; i < testFiles.length; i++) {
    runTestFile(testFiles[i]);
  }
})();