angular/modules/playground/e2e_test/sourcemap/sourcemap_spec.ts
Paul Gschwendtner d42ed733d8 test: update source-map tests to account for source-map breaking change (#46888)
The source-map package now requires the
`SourceMapConsumer`/`SourceMapGenerator` classes to be instantiated
asynchronously. This commit updates our tests to account for that.

PR Close #46888
2022-07-19 09:40:54 -07:00

53 lines
1.9 KiB
TypeScript

/**
* @license
* Copyright Google LLC 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
*/
import {readFileSync} from 'fs';
import {$, browser} from 'protractor';
import {logging} from 'selenium-webdriver';
import {RawSourceMap, SourceMapConsumer} from 'source-map';
describe('sourcemaps', function() {
const URL = '/';
it('should map sources', function() {
browser.get(URL);
$('error-app .errorButton').click();
browser.manage().logs().get(logging.Type.BROWSER).then(async function(logs: any) {
let errorLine: number|null = null;
let errorColumn: number|null = null;
logs.forEach(function(log: any) {
const match = log.message.match(/\.createError\s+\(.+:(\d+):(\d+)/m);
if (match) {
errorLine = parseInt(match[1]);
errorColumn = parseInt(match[2]);
}
});
expect(errorLine).not.toBeNull();
expect(errorColumn).not.toBeNull();
const content =
readFileSync(require.resolve('../../src/sourcemap/index.js')).toString('utf8');
const marker = '//# sourceMappingURL=data:application/json;base64,';
const index = content.indexOf(marker);
const sourceMapData =
Buffer.from(content.substring(index + marker.length), 'base64').toString('utf8');
const decoder = await new SourceMapConsumer(JSON.parse(sourceMapData) as RawSourceMap);
const originalPosition =
decoder.originalPositionFor({line: errorLine!, column: errorColumn!});
const sourceCodeLines = readFileSync(require.resolve('../../src/sourcemap/index.ts'), {
encoding: 'utf-8'
}).split('\n');
expect(sourceCodeLines[originalPosition.line! - 1])
.toMatch(/throw new Error\(\'Sourcemap test\'\)/);
});
});
});