46 lines
1.3 KiB
TypeScript
46 lines
1.3 KiB
TypeScript
/**
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* @license
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* Copyright Google Inc. All Rights Reserved.
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*
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* Use of this source code is governed by an MIT-style license that can be
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* found in the LICENSE file at https://angular.io/license
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*/
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import {createPatch} from 'diff';
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import * as fs from 'fs';
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import * as path from 'path';
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import {SerializationOptions, publicApi} from './serializer';
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export {SerializationOptions, publicApi} from './serializer';
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export function generateGoldenFile(
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entrypoint: string, outFile: string, options: SerializationOptions = {}): void {
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const output = publicApi(entrypoint, options);
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ensureDirectory(path.dirname(outFile));
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fs.writeFileSync(outFile, output);
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}
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export function verifyAgainstGoldenFile(
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entrypoint: string, goldenFile: string, options: SerializationOptions = {}): string {
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const actual = publicApi(entrypoint, options);
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const expected = fs.readFileSync(goldenFile).toString();
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if (actual === expected) {
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return '';
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} else {
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const patch = createPatch(goldenFile, expected, actual, 'Golden file', 'Generated API');
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// Remove the header of the patch
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const start = patch.indexOf('\n', patch.indexOf('\n') + 1) + 1;
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return patch.substring(start);
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}
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}
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function ensureDirectory(dir: string) {
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if (!fs.existsSync(dir)) {
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ensureDirectory(path.dirname(dir));
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fs.mkdirSync(dir);
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}
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}
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