src/third_party/devtools/scripts/npm_test.js - cobalt - Git at Google

 // Copyright 2016 The Chromium Authors. All rights reserved.
 // Use of this source code is governed by a BSD-style license that can be
 // found in the LICENSE file.

 const childProcess = require('child_process');
 const fs = require('fs');
 const path = require('path');
 const shell = require('child_process').execSync;
 const utils = require('./utils');

 const Flags = {
   DEBUG_DEVTOOLS: '--debug-devtools',
   DEBUG_DEVTOOLS_SHORTHAND: '-d',
   FETCH_CONTENT_SHELL: '--fetch-content-shell',
   CHROMIUM_PATH: '--chromium-path',  // useful for bisecting
   TARGET: '--target',                // build sub-directory (e.g. Release, Default)
 };

 const IS_DEBUG_ENABLED =
     utils.includes(process.argv, Flags.DEBUG_DEVTOOLS) || utils.includes(process.argv, Flags.DEBUG_DEVTOOLS_SHORTHAND);
 const CUSTOM_CHROMIUM_PATH = utils.parseArgs(process.argv)[Flags.CHROMIUM_PATH];
 const IS_FETCH_CONTENT_SHELL = utils.includes(process.argv, Flags.FETCH_CONTENT_SHELL);
 const TARGET = utils.parseArgs(process.argv)[Flags.TARGET] || 'Release';

 const CONTENT_SHELL_ZIP = 'content-shell.zip';
 const MAX_CONTENT_SHELLS = 10;
 const PLATFORM = getPlatform();
 const PYTHON = process.platform === 'win32' ? 'python.bat' : 'python';

 const CURRENT_PATH = process.env.PWD;  // Using env.PWD to account for symlinks.
 const isThirdParty = CURRENT_PATH.includes('third_party');
 const CHROMIUM_SRC_PATH = CUSTOM_CHROMIUM_PATH || getChromiumSrcPath(isThirdParty);
 const RELEASE_PATH = path.resolve(CHROMIUM_SRC_PATH, 'out', TARGET);
 const BLINK_TEST_PATH = path.resolve(CHROMIUM_SRC_PATH, 'third_party', 'blink', 'tools', 'run_web_tests.py');
 const DEVTOOLS_PATH = path.resolve(CHROMIUM_SRC_PATH, 'third_party', 'devtools-frontend', 'src');
 const CACHE_PATH = path.resolve(DEVTOOLS_PATH, '.test_cache');
 const SOURCE_PATH = path.resolve(DEVTOOLS_PATH, 'front_end');

 function main() {
   if (!utils.isDir(CACHE_PATH))
     fs.mkdirSync(CACHE_PATH);
   deleteOldContentShells();

   const hasUserCompiledContentShell = utils.isFile(getContentShellBinaryPath(RELEASE_PATH));
   if (!IS_FETCH_CONTENT_SHELL && hasUserCompiledContentShell) {
     const outDir = path.resolve(RELEASE_PATH, '..');
     if (!IS_DEBUG_ENABLED)
       compileFrontend();

     runTests(outDir, IS_DEBUG_ENABLED);
     return;
   }

   findPreviousUploadedPosition(findMostRecentChromiumCommit())
     .then(onUploadedCommitPosition)
     .catch(onError);

   function onError(error) {
     console.log('Unable to run tests because of error:', error);
     console.log(`Try removing the .test_cache folder [${CACHE_PATH}] and retrying`);
   }
 }
 main();

 function compileFrontend() {
   console.log('Compiling devtools frontend');
   try {
     shell(`ninja -C ${RELEASE_PATH} devtools_frontend_resources`, {cwd: CHROMIUM_SRC_PATH});
   } catch (err) {
     console.log(err.stdout.toString());
     console.log('ERROR: Cannot compile frontend\n' + err);
     process.exit(1);
   }
 }

 function onUploadedCommitPosition(commitPosition) {
   const contentShellDirPath = path.resolve(CACHE_PATH, commitPosition, 'out', TARGET);
   const contentShellResourcesPath = path.resolve(contentShellDirPath, 'resources');
   const contentShellPath = path.resolve(CACHE_PATH, commitPosition, 'out');

   const hasCachedContentShell = utils.isFile(getContentShellBinaryPath(contentShellDirPath));
   if (hasCachedContentShell) {
     console.log(`Using cached content shell at: ${contentShellPath}`);
     copyFrontend(contentShellResourcesPath);
     return runTests(contentShellPath, true);
   }
   const url = `http://commondatastorage.googleapis.com/chromium-browser-snapshots/${PLATFORM}/${commitPosition
   }/${CONTENT_SHELL_ZIP}`;
   return prepareContentShellDirectory(commitPosition)
       .then(() => downloadContentShell(url, commitPosition))
       .then(extractContentShell)
       .then(() => copyFrontend(contentShellResourcesPath))
       .then(() => runTests(contentShellPath, true));
 }

 function copyFrontend(contentShellResourcesPath) {
   const devtoolsResourcesPath = path.resolve(contentShellResourcesPath, 'inspector');
   const copiedFrontendPath = path.resolve(devtoolsResourcesPath, 'front_end');
   const debugFrontendPath = path.resolve(devtoolsResourcesPath, 'debug');
   const inspectorBackendCommandsPath = path.resolve(devtoolsResourcesPath, 'InspectorBackendCommands.js');
   const supportedCSSPropertiesPath = path.resolve(devtoolsResourcesPath, 'SupportedCSSProperties.js');
   utils.removeRecursive(copiedFrontendPath);
   utils.removeRecursive(debugFrontendPath);
   utils.copyRecursive(SOURCE_PATH, devtoolsResourcesPath);
   fs.renameSync(copiedFrontendPath, debugFrontendPath);
   utils.copy(inspectorBackendCommandsPath, debugFrontendPath);
   utils.copy(supportedCSSPropertiesPath, debugFrontendPath);
 }

 function getChromiumSrcPath(isThirdParty) {
   if (isThirdParty)
     // Assume we're in `chromium/src/third_party/devtools-frontend/src`.
     return path.resolve(CURRENT_PATH, '..', '..', '..');
   // Assume we're in `devtools/devtools-frontend`, where `devtools` is
   // on the same level as `chromium`.
   const srcPath = path.resolve(CURRENT_PATH, '..', '..', 'chromium', 'src');
   if (!utils.isDir(srcPath))
     throw new Error(`Chromium source directory not found at \`${srcPath}\`. ` +
         `Either move your standalone \`devtools/devtools-frontend\` checkout ` +
         `so that \`devtools\` is at the same level as \`chromium\` in ` +
         `\`chromium/src\`, or use \`--chromium-path\`.`);
   return srcPath;
 }

 function getPlatform() {
   if (process.platform === 'linux') {
     return 'Linux_x64';
   }
   if (process.platform === 'win32') {
     return 'Win_x64';
   }
   if (process.platform === 'darwin')
     return 'Mac';

   throw new Error(`Unrecognized platform detected: ${process.platform}`);
 }

 function findMostRecentChromiumCommit() {
   const commitMessage = shell(`git log --max-count=1 --grep="Cr-Commit-Position"`).toString().trim();
   const commitPosition = commitMessage.match(/Cr-Commit-Position: refs\/heads\/master@\{#([0-9]+)\}/)[1];
   return commitPosition;
 }

 function deleteOldContentShells() {
   const files = fs.readdirSync(CACHE_PATH);
   if (files.length < MAX_CONTENT_SHELLS)
     return;
   files.sort((a, b) => parseInt(b, 10) - parseInt(a, 10));
   const remainingNumberOfContentShells = MAX_CONTENT_SHELLS / 2;
   const oldContentShellDirs = files.slice(remainingNumberOfContentShells);
   for (let i = 0; i < oldContentShellDirs.length; i++)
     utils.removeRecursive(path.resolve(CACHE_PATH, oldContentShellDirs[i]));
   console.log(`Removed old content shells: ${oldContentShellDirs}`);
 }

 function findPreviousUploadedPosition(commitPosition) {
   const previousPosition = commitPosition - 100;
   const positionsListURL =
       `http://commondatastorage.googleapis.com/chromium-browser-snapshots/?delimiter=/&prefix=${PLATFORM
   }/&marker=${PLATFORM}/${previousPosition}/`;
   return utils.fetch(positionsListURL).then(onPositionsList).catch(onError);

   function onPositionsList(buffer) {
     const positions = buffer.toString('binary')
                         .match(/([^<>]+)(?=<\/Prefix><\/CommonPrefixes>)/g)
                         .map(prefixedPosition => prefixedPosition.split('/')[1])
                         .map(positionString => parseInt(positionString, 10));
     const positionSet = new Set(positions);
     let previousUploadedPosition = commitPosition;
     while (commitPosition - previousUploadedPosition < 100) {
       if (positionSet.has(previousUploadedPosition))
         return previousUploadedPosition.toString();
       previousUploadedPosition--;
     }
     onError();
   }

   function onError(error) {
     if (error)
       console.log(`Received error: ${error} trying to fetch positions list from url: ${positionsListURL}`);
     throw new Error(`Unable to find a previous upload position for commit position: ${commitPosition}`);
   }
 }

 async function prepareContentShellDirectory(folder) {
   const contentShellPath = path.join(CACHE_PATH, folder);
   if (utils.isDir(contentShellPath))
     utils.removeRecursive(contentShellPath);
   fs.mkdirSync(contentShellPath);
   return folder;
 }

 function downloadContentShell(url, folder) {
   console.log('Downloading content shell from:', url);
   console.log('NOTE: Download is ~35-65 MB depending on OS');
   return utils.fetch(url).then(writeZip).catch(onError);

   function writeZip(buffer) {
     console.log('Completed download of content shell');
     const contentShellZipPath = path.join(CACHE_PATH, folder, CONTENT_SHELL_ZIP);
     fs.writeFileSync(contentShellZipPath, buffer);
     return contentShellZipPath;
   }

   function onError(error) {
     console.log(`Received error: ${error} trying to download content shell from url: ${url}`);
     throw new Error('Unable to download content shell');
   }
 }

 function extractContentShell(contentShellZipPath) {
   console.log(`Extracting content shell zip: ${contentShellZipPath}`);
   const unzipScriptPath = path.resolve(__dirname, 'unzip.py');
   const src = contentShellZipPath;
   const dest = path.resolve(path.dirname(src), 'out');
   shell(`${PYTHON} ${unzipScriptPath} ${src} ${dest}`);
   fs.unlinkSync(src);
   const originalDirPath = path.resolve(dest, 'content-shell');
   const newDirPath = path.resolve(dest, TARGET);
   fs.renameSync(originalDirPath, newDirPath);
   fs.chmodSync(getContentShellBinaryPath(newDirPath), '755');
   if (process.platform === 'darwin') {
     const helperPath = path.resolve(
         newDirPath, 'Content Shell.app', 'Contents', 'Frameworks', 'Content Shell Helper.app', 'Contents', 'MacOS',
         'Content Shell Helper');
     fs.chmodSync(helperPath, '755');
   }
   return dest;
 }

 function getContentShellBinaryPath(dirPath) {
   if (process.platform === 'linux')
     return path.resolve(dirPath, 'content_shell');

   if (process.platform === 'win32')
     return path.resolve(dirPath, 'content_shell.exe');

   if (process.platform === 'darwin')
     return path.resolve(dirPath, 'Content Shell.app', 'Contents', 'MacOS', 'Content Shell');
 }

 function runTests(buildDirectoryPath, useDebugDevtools) {
   const testArgs = getInspectorTests().concat([
     '--build-directory',
     buildDirectoryPath,
     '--target',
     TARGET,
   ]);
   if (useDebugDevtools)
     testArgs.push('--additional-driver-flag=--debug-devtools');
   else
     console.log('TIP: You can debug a test using: npm run debug-test inspector/test-name.html');

   if (IS_DEBUG_ENABLED) {
     testArgs.push('--additional-driver-flag=--remote-debugging-port=9222');
     testArgs.push('--time-out-ms=6000000');
     console.log('\n=============================================');
     const unitTest = testArgs.find(arg => arg.includes('http/tests/devtools/unit/'));
     if (unitTest) {
       const unitTestPath = `http://localhost:8080/${unitTest.slice('http/tests/'.length)}`;
       const link =
           `http://localhost:8080/inspector-sources/debug/integration_test_runner.html?experiments=true&test=${
                                                                                                               unitTestPath
                                                                                                             }`;
       console.log('1) Go to: ', link);
       console.log('2) Go to: http://localhost:9222/, click on "inspected-page.html", and copy the ws query parameter');
       console.log('3) Open DevTools on DevTools and you can refresh to re-run the test')
     } else {
       console.log('Go to: http://localhost:9222/');
       console.log('Click on link and in console execute: test()');
     }
     console.log('=============================================\n');
   }
   const args = [BLINK_TEST_PATH].concat(testArgs).concat(getTestFlags());
   console.log(`Running web tests with args: ${args}`);
   childProcess.spawn(PYTHON, args, {stdio: 'inherit'});
 }

 function getTestFlags() {
   const flagValues = Object.keys(Flags).map(key => Flags[key]);
   return process.argv.slice(2).filter(arg => {
     const flagName = utils.includes(arg, '=') ? arg.slice(0, arg.indexOf('=')) : arg;
     return !utils.includes(flagValues, flagName) && !utils.includes(arg, 'inspector') &&
         !utils.includes(arg, 'http/tests/devtools');
   });
 }

 function getInspectorTests() {
   const specificTests =
       process.argv.filter(arg => utils.includes(arg, 'inspector') || utils.includes(arg, 'http/tests/devtools'));
   if (specificTests.length)
     return specificTests;
   return [
     'inspector*',
     'http/tests/inspector*',
     'http/tests/devtools',
   ];
 }
	// Copyright 2016 The Chromium Authors. All rights reserved.
	// Use of this source code is governed by a BSD-style license that can be
	// found in the LICENSE file.

	const childProcess = require('child_process');
	const fs = require('fs');
	const path = require('path');
	const shell = require('child_process').execSync;
	const utils = require('./utils');

	const Flags = {
	DEBUG_DEVTOOLS: '--debug-devtools',
	DEBUG_DEVTOOLS_SHORTHAND: '-d',
	FETCH_CONTENT_SHELL: '--fetch-content-shell',
	CHROMIUM_PATH: '--chromium-path', // useful for bisecting
	TARGET: '--target', // build sub-directory (e.g. Release, Default)
	};

	const IS_DEBUG_ENABLED =
	utils.includes(process.argv, Flags.DEBUG_DEVTOOLS) \|\| utils.includes(process.argv, Flags.DEBUG_DEVTOOLS_SHORTHAND);
	const CUSTOM_CHROMIUM_PATH = utils.parseArgs(process.argv)[Flags.CHROMIUM_PATH];
	const IS_FETCH_CONTENT_SHELL = utils.includes(process.argv, Flags.FETCH_CONTENT_SHELL);
	const TARGET = utils.parseArgs(process.argv)[Flags.TARGET] \|\| 'Release';

	const CONTENT_SHELL_ZIP = 'content-shell.zip';
	const MAX_CONTENT_SHELLS = 10;
	const PLATFORM = getPlatform();
	const PYTHON = process.platform === 'win32' ? 'python.bat' : 'python';

	const CURRENT_PATH = process.env.PWD; // Using env.PWD to account for symlinks.
	const isThirdParty = CURRENT_PATH.includes('third_party');
	const CHROMIUM_SRC_PATH = CUSTOM_CHROMIUM_PATH \|\| getChromiumSrcPath(isThirdParty);
	const RELEASE_PATH = path.resolve(CHROMIUM_SRC_PATH, 'out', TARGET);
	const BLINK_TEST_PATH = path.resolve(CHROMIUM_SRC_PATH, 'third_party', 'blink', 'tools', 'run_web_tests.py');
	const DEVTOOLS_PATH = path.resolve(CHROMIUM_SRC_PATH, 'third_party', 'devtools-frontend', 'src');
	const CACHE_PATH = path.resolve(DEVTOOLS_PATH, '.test_cache');
	const SOURCE_PATH = path.resolve(DEVTOOLS_PATH, 'front_end');

	function main() {
	if (!utils.isDir(CACHE_PATH))
	fs.mkdirSync(CACHE_PATH);
	deleteOldContentShells();

	const hasUserCompiledContentShell = utils.isFile(getContentShellBinaryPath(RELEASE_PATH));
	if (!IS_FETCH_CONTENT_SHELL && hasUserCompiledContentShell) {
	const outDir = path.resolve(RELEASE_PATH, '..');
	if (!IS_DEBUG_ENABLED)
	compileFrontend();

	runTests(outDir, IS_DEBUG_ENABLED);
	return;
	}

	findPreviousUploadedPosition(findMostRecentChromiumCommit())
	.then(onUploadedCommitPosition)
	.catch(onError);

	function onError(error) {
	console.log('Unable to run tests because of error:', error);
	console.log(`Try removing the .test_cache folder [${CACHE_PATH}] and retrying`);
	}
	}
	main();

	function compileFrontend() {
	console.log('Compiling devtools frontend');
	try {
	shell(`ninja -C ${RELEASE_PATH} devtools_frontend_resources`, {cwd: CHROMIUM_SRC_PATH});
	} catch (err) {
	console.log(err.stdout.toString());
	console.log('ERROR: Cannot compile frontend\n' + err);
	process.exit(1);
	}
	}

	function onUploadedCommitPosition(commitPosition) {
	const contentShellDirPath = path.resolve(CACHE_PATH, commitPosition, 'out', TARGET);
	const contentShellResourcesPath = path.resolve(contentShellDirPath, 'resources');
	const contentShellPath = path.resolve(CACHE_PATH, commitPosition, 'out');

	const hasCachedContentShell = utils.isFile(getContentShellBinaryPath(contentShellDirPath));
	if (hasCachedContentShell) {
	console.log(`Using cached content shell at: ${contentShellPath}`);
	copyFrontend(contentShellResourcesPath);
	return runTests(contentShellPath, true);
	}
	const url = `http://commondatastorage.googleapis.com/chromium-browser-snapshots/${PLATFORM}/${commitPosition
	}/${CONTENT_SHELL_ZIP}`;
	return prepareContentShellDirectory(commitPosition)
	.then(() => downloadContentShell(url, commitPosition))
	.then(extractContentShell)
	.then(() => copyFrontend(contentShellResourcesPath))
	.then(() => runTests(contentShellPath, true));
	}

	function copyFrontend(contentShellResourcesPath) {
	const devtoolsResourcesPath = path.resolve(contentShellResourcesPath, 'inspector');
	const copiedFrontendPath = path.resolve(devtoolsResourcesPath, 'front_end');
	const debugFrontendPath = path.resolve(devtoolsResourcesPath, 'debug');
	const inspectorBackendCommandsPath = path.resolve(devtoolsResourcesPath, 'InspectorBackendCommands.js');
	const supportedCSSPropertiesPath = path.resolve(devtoolsResourcesPath, 'SupportedCSSProperties.js');
	utils.removeRecursive(copiedFrontendPath);
	utils.removeRecursive(debugFrontendPath);
	utils.copyRecursive(SOURCE_PATH, devtoolsResourcesPath);
	fs.renameSync(copiedFrontendPath, debugFrontendPath);
	utils.copy(inspectorBackendCommandsPath, debugFrontendPath);
	utils.copy(supportedCSSPropertiesPath, debugFrontendPath);
	}

	function getChromiumSrcPath(isThirdParty) {
	if (isThirdParty)
	// Assume we're in `chromium/src/third_party/devtools-frontend/src`.
	return path.resolve(CURRENT_PATH, '..', '..', '..');
	// Assume we're in `devtools/devtools-frontend`, where `devtools` is
	// on the same level as `chromium`.
	const srcPath = path.resolve(CURRENT_PATH, '..', '..', 'chromium', 'src');
	if (!utils.isDir(srcPath))
	throw new Error(`Chromium source directory not found at \`${srcPath}\`. ` +
	`Either move your standalone \`devtools/devtools-frontend\` checkout ` +
	`so that \`devtools\` is at the same level as \`chromium\` in ` +
	`\`chromium/src\`, or use \`--chromium-path\`.`);
	return srcPath;
	}

	function getPlatform() {
	if (process.platform === 'linux') {
	return 'Linux_x64';
	}
	if (process.platform === 'win32') {
	return 'Win_x64';
	}
	if (process.platform === 'darwin')
	return 'Mac';

	throw new Error(`Unrecognized platform detected: ${process.platform}`);
	}

	function findMostRecentChromiumCommit() {
	const commitMessage = shell(`git log --max-count=1 --grep="Cr-Commit-Position"`).toString().trim();
	const commitPosition = commitMessage.match(/Cr-Commit-Position: refs\/heads\/master@\{#([0-9]+)\}/)[1];
	return commitPosition;
	}

	function deleteOldContentShells() {
	const files = fs.readdirSync(CACHE_PATH);
	if (files.length < MAX_CONTENT_SHELLS)
	return;
	files.sort((a, b) => parseInt(b, 10) - parseInt(a, 10));
	const remainingNumberOfContentShells = MAX_CONTENT_SHELLS / 2;
	const oldContentShellDirs = files.slice(remainingNumberOfContentShells);
	for (let i = 0; i < oldContentShellDirs.length; i++)
	utils.removeRecursive(path.resolve(CACHE_PATH, oldContentShellDirs[i]));
	console.log(`Removed old content shells: ${oldContentShellDirs}`);
	}

	function findPreviousUploadedPosition(commitPosition) {
	const previousPosition = commitPosition - 100;
	const positionsListURL =
	`http://commondatastorage.googleapis.com/chromium-browser-snapshots/?delimiter=/&prefix=${PLATFORM
	}/&marker=${PLATFORM}/${previousPosition}/`;
	return utils.fetch(positionsListURL).then(onPositionsList).catch(onError);

	function onPositionsList(buffer) {
	const positions = buffer.toString('binary')
	.match(/([^<>]+)(?=<\/Prefix><\/CommonPrefixes>)/g)
	.map(prefixedPosition => prefixedPosition.split('/')[1])
	.map(positionString => parseInt(positionString, 10));
	const positionSet = new Set(positions);
	let previousUploadedPosition = commitPosition;
	while (commitPosition - previousUploadedPosition < 100) {
	if (positionSet.has(previousUploadedPosition))
	return previousUploadedPosition.toString();
	previousUploadedPosition--;
	}
	onError();
	}

	function onError(error) {
	if (error)
	console.log(`Received error: ${error} trying to fetch positions list from url: ${positionsListURL}`);
	throw new Error(`Unable to find a previous upload position for commit position: ${commitPosition}`);
	}
	}

	async function prepareContentShellDirectory(folder) {
	const contentShellPath = path.join(CACHE_PATH, folder);
	if (utils.isDir(contentShellPath))
	utils.removeRecursive(contentShellPath);
	fs.mkdirSync(contentShellPath);
	return folder;
	}

	function downloadContentShell(url, folder) {
	console.log('Downloading content shell from:', url);
	console.log('NOTE: Download is ~35-65 MB depending on OS');
	return utils.fetch(url).then(writeZip).catch(onError);

	function writeZip(buffer) {
	console.log('Completed download of content shell');
	const contentShellZipPath = path.join(CACHE_PATH, folder, CONTENT_SHELL_ZIP);
	fs.writeFileSync(contentShellZipPath, buffer);
	return contentShellZipPath;
	}

	function onError(error) {
	console.log(`Received error: ${error} trying to download content shell from url: ${url}`);
	throw new Error('Unable to download content shell');
	}
	}

	function extractContentShell(contentShellZipPath) {
	console.log(`Extracting content shell zip: ${contentShellZipPath}`);
	const unzipScriptPath = path.resolve(__dirname, 'unzip.py');
	const src = contentShellZipPath;
	const dest = path.resolve(path.dirname(src), 'out');
	shell(`${PYTHON} ${unzipScriptPath} ${src} ${dest}`);
	fs.unlinkSync(src);
	const originalDirPath = path.resolve(dest, 'content-shell');
	const newDirPath = path.resolve(dest, TARGET);
	fs.renameSync(originalDirPath, newDirPath);
	fs.chmodSync(getContentShellBinaryPath(newDirPath), '755');
	if (process.platform === 'darwin') {
	const helperPath = path.resolve(
	newDirPath, 'Content Shell.app', 'Contents', 'Frameworks', 'Content Shell Helper.app', 'Contents', 'MacOS',
	'Content Shell Helper');
	fs.chmodSync(helperPath, '755');
	}
	return dest;
	}

	function getContentShellBinaryPath(dirPath) {
	if (process.platform === 'linux')
	return path.resolve(dirPath, 'content_shell');

	if (process.platform === 'win32')
	return path.resolve(dirPath, 'content_shell.exe');

	if (process.platform === 'darwin')
	return path.resolve(dirPath, 'Content Shell.app', 'Contents', 'MacOS', 'Content Shell');
	}

	function runTests(buildDirectoryPath, useDebugDevtools) {
	const testArgs = getInspectorTests().concat([
	'--build-directory',
	buildDirectoryPath,
	'--target',
	TARGET,
	]);
	if (useDebugDevtools)
	testArgs.push('--additional-driver-flag=--debug-devtools');
	else
	console.log('TIP: You can debug a test using: npm run debug-test inspector/test-name.html');

	if (IS_DEBUG_ENABLED) {
	testArgs.push('--additional-driver-flag=--remote-debugging-port=9222');
	testArgs.push('--time-out-ms=6000000');
	console.log('\n=============================================');
	const unitTest = testArgs.find(arg => arg.includes('http/tests/devtools/unit/'));
	if (unitTest) {
	const unitTestPath = `http://localhost:8080/${unitTest.slice('http/tests/'.length)}`;
	const link =
	`http://localhost:8080/inspector-sources/debug/integration_test_runner.html?experiments=true&test=${
	unitTestPath
	}`;
	console.log('1) Go to: ', link);
	console.log('2) Go to: http://localhost:9222/, click on "inspected-page.html", and copy the ws query parameter');
	console.log('3) Open DevTools on DevTools and you can refresh to re-run the test')
	} else {
	console.log('Go to: http://localhost:9222/');
	console.log('Click on link and in console execute: test()');
	}
	console.log('=============================================\n');
	}
	const args = [BLINK_TEST_PATH].concat(testArgs).concat(getTestFlags());
	console.log(`Running web tests with args: ${args}`);
	childProcess.spawn(PYTHON, args, {stdio: 'inherit'});
	}

	function getTestFlags() {
	const flagValues = Object.keys(Flags).map(key => Flags[key]);
	return process.argv.slice(2).filter(arg => {
	const flagName = utils.includes(arg, '=') ? arg.slice(0, arg.indexOf('=')) : arg;
	return !utils.includes(flagValues, flagName) && !utils.includes(arg, 'inspector') &&
	!utils.includes(arg, 'http/tests/devtools');
	});
	}

	function getInspectorTests() {
	const specificTests =
	process.argv.filter(arg => utils.includes(arg, 'inspector') \|\| utils.includes(arg, 'http/tests/devtools'));
	if (specificTests.length)
	return specificTests;
	return [
	'inspector*',
	'http/tests/inspector*',
	'http/tests/devtools',
	];
	}