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import {spawn} from 'child_process';
import {
createBuilder,
BuilderContext,
BuilderOutput,
targetFromTargetString,
BuilderRun,
} from '@angular-devkit/architect';
import {JsonObject} from '@angular-devkit/core';
import {PuppeteerBuilderOptions} from './types.js';
const terminalStyles = {
blue: '\u001b[34m',
green: '\u001b[32m',
bold: '\u001b[1m',
reverse: '\u001b[7m',
clear: '\u001b[0m',
};
function getError(executable: string, args: string[]) {
return (
`Puppeteer E2E tests failed!` +
'\n' +
`Error running '${executable}' with arguments '${args.join(' ')}'.` +
`\n` +
'Please look at the output above to determine the issue!'
);
}
function getExecutable(command: string[]) {
const executable = command.shift()!;
const error = getError(executable, command);
if (executable === 'node') {
return {
executable: executable,
args: command,
error,
};
}
return {
executable: `./node_modules/.bin/${executable}`,
args: command,
error,
};
}
async function executeCommand(context: BuilderContext, command: string[]) {
await new Promise((resolve, reject) => {
context.logger.debug(`Trying to execute command - ${command.join(' ')}.`);
const {executable, args, error} = getExecutable(command);
const child = spawn(executable, args, {
cwd: context.workspaceRoot,
stdio: 'inherit',
});
child.on('error', message => {
console.log(message);
reject(error);
});
child.on('exit', code => {
if (code === 0) {
resolve(true);
} else {
reject(error);
}
});
});
}
function message(
message: string,
context: BuilderContext,
type: 'info' | 'success' = 'info'
): void {
const color = type === 'info' ? terminalStyles.blue : terminalStyles.green;
context.logger.info(
`${terminalStyles.bold}${terminalStyles.reverse}${color}${message}${terminalStyles.clear}`
);
}
async function startServer(
options: PuppeteerBuilderOptions,
context: BuilderContext
): Promise<BuilderRun> {
context.logger.debug('Trying to start server.');
const target = targetFromTargetString(options.devServerTarget);
const defaultServerOptions = await context.getTargetOptions(target);
const overrides = {
watch: false,
host: defaultServerOptions['host'],
port: defaultServerOptions['port'],
} as JsonObject;
message('Spawning test server...\n', context);
const server = await context.scheduleTarget(target, overrides);
const result = await server.result;
if (!result.success) {
throw new Error('Failed to spawn server! Stopping tests...');
}
return server;
}
async function executeE2ETest(
options: PuppeteerBuilderOptions,
context: BuilderContext
): Promise<BuilderOutput> {
let server: BuilderRun | null = null;
try {
server = await startServer(options, context);
message('\nRunning tests...\n', context);
for (const command of options.commands) {
await executeCommand(context, command);
}
message('\nTest ran successfully!', context, 'success');
return {success: true};
} catch (error) {
if (error instanceof Error) {
return {success: false, error: error.message};
}
return {success: false, error: error as any};
} finally {
if (server) {
await server.stop();
}
}
}
export default createBuilder<PuppeteerBuilderOptions>(executeE2ETest) as any;
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