Function main

projects/cli/src/check-snapshots.ts:55–83

(config: Config, hostUrl: string, testPath: string, viewportConfig?: ViewportOptions)

/////////////////////////////////

async function main(config: Config, hostUrl: string, testPath: string, viewportConfig?: ViewportOptions) {
    // create test file to run with jest
    writeSandboxesToTestFile(config, hostUrl, testPath, viewportConfig);

    // launch puppeteer headless browser to render scenarios
    browser = await puppeteer.launch({
        headless: true,
        handleSIGINT: false,
        args: CHROME_ARGS,
    });

    const timeoutAttempts = config.timeout;
    await waitForNgServe(browser, hostUrl, timeoutAttempts);
    const testRegex = viewportConfig
        ? `test-image-snapshots-${formatViewportSize(viewportConfig)}\\.js$`
        : 'test-image-snapshots\\.js';
    const argv = {
        updateSnapshot: !!config.updateSnapshots,
        testRegex
    } as JestConfig.Argv;
    const projectPath = resolvePath('.');
    const projects = [projectPath];
    const { results } = await runCLI(argv, projects);

    await browser.close();
    const exitCode = results.numFailedTests === 0 ? 0 : 1;
    clearOldTestFiles();
    return exitCode;
}

function normalizeResolvePath(directory) {
    const absolutePath = isAbsolute(directory) ? directory : resolvePath('.', directory);