angular-cn/integration/ng_update_migrations/test.js

81 lines
3.1 KiB
JavaScript

/**
* @license
* Copyright Google Inc. All Rights Reserved.
*
* Use of this source code is governed by an MIT-style license that can be
* found in the LICENSE file at https://angular.io/license
*/
const path = require('path');
const fs = require('fs');
const child_process = require('child_process');
const glob = require('glob');
const chalk = require('chalk');
const diff = require('diff');
const projectDir = __dirname;
const cliBinPath = path.join(projectDir, 'node_modules/@angular/cli/bin/ng');
const expectationFiles = glob.sync('**/*_expected.ts', {cwd: projectDir});
const fromVersion = '9.0.0';
const toVersion = '10.0.0';
// Note that we need to specify "--allow-dirty" as the repository will become dirty
// if dependencies for the integration test are installed (i.e. modified lock files)
const updateCommandArgs = ['@angular/core', '--migrate-only', '--from', fromVersion,
'--to', toVersion, '--allow-dirty'];
// Print out the command that is used to run the migrations for easier debugging.
console.error(`Running "ng update ${updateCommandArgs.join(' ')}":`);
console.error(chalk.yellow(`------------------------------------------`));
const updateProcess = child_process.spawnSync(
'node', [cliBinPath, 'update', ...updateCommandArgs], {stdio: 'inherit', cwd: projectDir});
console.error(chalk.yellow(`------------------------------------------\n`));
if (updateProcess.status !== 0) {
console.error(chalk.red('✘ Running "ng update" failed. See output above.'));
process.exit(1);
}
let testsPassing = true;
// Check if each expectation file matches the actual file in the CLI project.
expectationFiles.forEach(relativeFilePath => {
const actualFilePath = relativeFilePath.replace(/_expected.ts$/, '.ts');
const expectedContent = fs.readFileSync(path.join(projectDir, relativeFilePath), 'utf8');
const actualContent = fs.readFileSync(path.join(projectDir, actualFilePath), 'utf8');
if (expectedContent === actualContent) {
console.log(chalk.green(`✓ File "${actualFilePath}" matches the expected output.`));
} else {
testsPassing = false;
console.error(chalk.red(`✘ File "${actualFilePath}" does not match the expected output.`));
console.log(chalk.yellow('--------------------------------------------'));
printColoredPatch(actualFilePath, actualContent, expectedContent);
console.log(chalk.yellow('--------------------------------------------\n'));
}
});
process.exit(testsPassing ? 0 : 1);
/** Compares the two strings and prints out a colored diff to stdout. */
function printColoredPatch(actualFilePath, actualContent, expectedContent) {
const patchLines =
diff.createPatch(
actualFilePath, expectedContent, actualContent, 'Expected content', 'Actual content')
.split(/\r?\n/);
// Walk through each line of the patch and print it. We omit the first two lines
// as these are the patch header and not relevant to the test.
for (let line of patchLines.slice(2)) {
if (line.startsWith('+')) {
console.log(chalk.green(line));
} else if (line.startsWith('-')) {
console.log(chalk.red(line));
} else {
console.log(chalk.grey(line));
}
}
}