angular-cn/aio/tools/examples/run-example-e2e.js

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const path = require('canonical-path');
const fs = require('fs-extra');
const argv = require('yargs').argv;
const globby = require('globby');
const xSpawn = require('cross-spawn');
const treeKill = require('tree-kill');
const shelljs = require('shelljs');
shelljs.set('-e');
const AIO_PATH = path.join(__dirname, '../../');
const SHARED_PATH = path.join(__dirname, '/shared');
const EXAMPLES_PATH = path.join(AIO_PATH, './content/examples/');
const PROTRACTOR_CONFIG_FILENAME = path.join(__dirname, './shared/protractor.config.js');
const SJS_SPEC_FILENAME = 'e2e-spec.ts';
const CLI_SPEC_FILENAME = 'e2e/src/app.e2e-spec.ts';
const EXAMPLE_CONFIG_FILENAME = 'example-config.json';
const IGNORED_EXAMPLES = [ // temporary ignores
'quickstart',
'setup',
'webpack',
'upgrade-p'
];
/**
* Run Protractor End-to-End Tests for Doc Samples
*
* Flags
* --filter to filter/select _example app subdir names
* e.g. --filter=foo // all example apps with 'foo' in their folder names.
*
* --setup run yarn install, copy boilerplate and update webdriver
* e.g. --setup
*
* --local to use the locally built Angular packages, rather than versions from npm
* Must be used in conjunction with --setup as this is when the packages are copied.
* e.g. --setup --local
*
* --shard to shard the specs into groups to allow you to run them in parallel
* e.g. --shard=0/2 // the even specs: 0, 2, 4, etc
* e.g. --shard=1/2 // the odd specs: 1, 3, 5, etc
* e.g. --shard=1/3 // the second of every three specs: 1, 4, 7, etc
*/
function runE2e() {
if (argv.setup) {
// Run setup.
console.log('runE2e: setup boilerplate');
const installPackagesCommand = `example-use-${argv.local ? 'local' : 'npm'}`;
const addBoilerplateCommand = 'boilerplate:add';
shelljs.exec(`yarn ${installPackagesCommand}`, { cwd: AIO_PATH });
shelljs.exec(`yarn ${addBoilerplateCommand}`, { cwd: AIO_PATH });
}
const outputFile = path.join(AIO_PATH, './protractor-results.txt');
return Promise.resolve()
.then(() => findAndRunE2eTests(argv.filter, outputFile, argv.shard))
.then((status) => {
reportStatus(status, outputFile);
if (status.failed.length > 0) {
return Promise.reject('Some test suites failed');
}
}).catch(function (e) {
console.log(e);
process.exitCode = 1;
});
}
// Finds all of the *e2e-spec.tests under the examples folder along with the corresponding apps
// that they should run under. Then run each app/spec collection sequentially.
function findAndRunE2eTests(filter, outputFile, shard) {
const shardParts = shard ? shard.split('/') : [0,1];
const shardModulo = parseInt(shardParts[0], 10);
const shardDivider = parseInt(shardParts[1], 10);
// create an output file with header.
const startTime = new Date().getTime();
let header = `Doc Sample Protractor Results on ${new Date().toLocaleString()}\n`;
header += ` Filter: ${filter ? filter : 'All tests'}\n\n`;
fs.writeFileSync(outputFile, header);
// Run the tests sequentially.
const status = { passed: [], failed: [] };
return getE2eSpecs(EXAMPLES_PATH, filter)
.then(e2eSpecPaths => {
Object.keys(e2eSpecPaths).forEach(key => {
const value = e2eSpecPaths[key];
e2eSpecPaths[key] = value.filter((p, index) => index % shardDivider === shardModulo);
});
return e2eSpecPaths.systemjs.reduce((promise, specPath) => {
return promise.then(() => {
const examplePath = path.dirname(specPath);
return runE2eTestsSystemJS(examplePath, outputFile).then(ok => {
const arr = ok ? status.passed : status.failed;
arr.push(examplePath);
});
});
}, Promise.resolve())
.then(() => {
return e2eSpecPaths.cli.reduce((promise, specPath) => {
return promise.then(() => {
return runE2eTestsCLI(specPath, outputFile).then(ok => {
const arr = ok ? status.passed : status.failed;
arr.push(specPath);
});
});
}, Promise.resolve());
});
})
.then(() => {
const stopTime = new Date().getTime();
status.elapsedTime = (stopTime - startTime) / 1000;
return status;
});
}
// Start the example in appDir; then run protractor with the specified
// fileName; then shut down the example.
// All protractor output is appended to the outputFile.
// SystemJS version
function runE2eTestsSystemJS(appDir, outputFile) {
const config = loadExampleConfig(appDir);
const appBuildSpawnInfo = spawnExt('yarn', [config.build], { cwd: appDir });
const appRunSpawnInfo = spawnExt('yarn', [config.run, '-s'], { cwd: appDir }, true);
let run = runProtractorSystemJS(appBuildSpawnInfo.promise, appDir, appRunSpawnInfo, outputFile);
if (fs.existsSync(appDir + '/aot/index.html')) {
run = run.then((ok) => ok && runProtractorAoT(appDir, outputFile));
}
return run;
}
function runProtractorSystemJS(prepPromise, appDir, appRunSpawnInfo, outputFile) {
const specFilename = path.resolve(`${appDir}/${SJS_SPEC_FILENAME}`);
return prepPromise
.catch(function () {
const emsg = `Application at ${appDir} failed to transpile.\n\n`;
console.log(emsg);
fs.appendFileSync(outputFile, emsg);
return Promise.reject(emsg);
})
.then(function () {
let transpileError = false;
// Start protractor.
console.log(`\n\n=========== Running aio example tests for: ${appDir}`);
const spawnInfo = spawnExt('yarn', ['protractor',
PROTRACTOR_CONFIG_FILENAME,
`--specs=${specFilename}`,
'--params.appDir=' + appDir,
'--params.outputFile=' + outputFile
], { cwd: SHARED_PATH });
spawnInfo.proc.stderr.on('data', function (data) {
transpileError = transpileError || /npm ERR! Exit status 100/.test(data.toString());
});
return spawnInfo.promise.catch(function () {
if (transpileError) {
const emsg = `${specFilename} failed to transpile.\n\n`;
console.log(emsg);
fs.appendFileSync(outputFile, emsg);
}
return Promise.reject();
});
})
.then(
function () { return finish(appRunSpawnInfo.proc.pid, true); },
function () { return finish(appRunSpawnInfo.proc.pid, false); }
);
}
function finish(spawnProcId, ok) {
// Ugh... proc.kill does not work properly on windows with child processes.
// appRun.proc.kill();
treeKill(spawnProcId);
return ok;
}
// Run e2e tests over the AOT build for projects that examples it.
function runProtractorAoT(appDir, outputFile) {
fs.appendFileSync(outputFile, '++ AoT version ++\n');
const aotBuildSpawnInfo = spawnExt('yarn', ['build:aot'], { cwd: appDir });
let promise = aotBuildSpawnInfo.promise;
const copyFileCmd = 'copy-dist-files.js';
if (fs.existsSync(appDir + '/' + copyFileCmd)) {
promise = promise.then(() => spawnExt('node', [copyFileCmd], { cwd: appDir }).promise);
}
const aotRunSpawnInfo = spawnExt('yarn', ['serve:aot'], { cwd: appDir }, true);
return runProtractorSystemJS(promise, appDir, aotRunSpawnInfo, outputFile);
}
// Start the example in appDir; then run protractor with the specified
// fileName; then shut down the example.
// All protractor output is appended to the outputFile.
// CLI version
function runE2eTestsCLI(appDir, outputFile) {
console.log(`\n\n=========== Running aio example tests for: ${appDir}`);
// `--preserve-symlinks` is needed due the symlinked `node_modules/` in each example.
// `--no-webdriver-update` is needed to preserve the ChromeDriver version already installed.
const args = ['e2e', '--no-webdriver-update'];
const e2eSpawn = spawnExt('yarn', args, { cwd: appDir });
return e2eSpawn.promise.then(
function () {
fs.appendFileSync(outputFile, `Passed: ${appDir}\n\n`);
return finish(e2eSpawn.proc.pid, true);
},
function () {
fs.appendFileSync(outputFile, `Failed: ${appDir}\n\n`);
return finish(e2eSpawn.proc.pid, false);
}
);
}
// Report final status.
function reportStatus(status, outputFile) {
let log = [''];
log.push('Suites passed:');
status.passed.forEach(function (val) {
log.push(' ' + val);
});
if (status.failed.length == 0) {
log.push('All tests passed');
} else {
log.push('Suites failed:');
status.failed.forEach(function (val) {
log.push(' ' + val);
});
}
log.push('\nElapsed time: ' + status.elapsedTime + ' seconds');
log = log.join('\n');
console.log(log);
fs.appendFileSync(outputFile, log);
}
// Returns both a promise and the spawned process so that it can be killed if needed.
function spawnExt(command, args, options, ignoreClose = false) {
let proc;
const promise = new Promise((resolve, reject) => {
let descr = command + ' ' + args.join(' ');
console.log('running: ' + descr);
try {
proc = xSpawn.spawn(command, args, options);
} catch (e) {
console.log(e);
reject(e);
return { proc: null, promise };
}
proc.stdout.on('data', function (data) {
process.stdout.write(data.toString());
});
proc.stderr.on('data', function (data) {
process.stdout.write(data.toString());
});
proc.on('close', function (returnCode) {
console.log(`completed: ${descr} \n`);
// Many tasks (e.g., tsc) complete but are actually errors;
// Confirm return code is zero.
returnCode === 0 || ignoreClose ? resolve(0) : reject(returnCode);
});
proc.on('error', function (data) {
console.log(`completed with error: ${descr} \n`);
console.log(data.toString());
reject(data);
});
});
return { proc, promise };
}
function getE2eSpecs(basePath, filter) {
let specs = {};
return getE2eSpecsFor(basePath, SJS_SPEC_FILENAME, filter).then(sjsPaths => {
specs.systemjs = sjsPaths;
}).then(() => {
return getE2eSpecsFor(basePath, CLI_SPEC_FILENAME, filter).then(cliPaths => {
return cliPaths.map(p => {
return p.replace(`${CLI_SPEC_FILENAME}`, '');
});
});
}).then(cliPaths => {
specs.cli = cliPaths;
}).then(() => specs);
}
// Find all e2e specs in a given example folder.
function getE2eSpecsFor(basePath, specFile, filter) {
// Only get spec file at the example root.
const e2eSpecGlob = `${filter ? `*${filter}*` : '*'}/${specFile}`;
return globby(e2eSpecGlob, { cwd: basePath, nodir: true })
.then(paths => paths
.filter(file => !IGNORED_EXAMPLES.some(ignored => file.startsWith(ignored)))
.map(file => path.join(basePath, file))
);
}
// Load configuration for an example. Used for SystemJS
function loadExampleConfig(exampleFolder) {
// Default config.
let config = {
build: 'build',
run: 'serve:e2e'
};
try {
const exampleConfig = fs.readJsonSync(`${exampleFolder}/${EXAMPLE_CONFIG_FILENAME}`);
Object.assign(config, exampleConfig);
} catch (e) { }
return config;
}
runE2e();