angular-cn/integration/language_service_plugin/matcher.ts

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import { writeFileSync, readFileSync } from 'fs';
const goldens: string[] = process.argv.slice(2);
export const goldenMatcher: jasmine.CustomMatcherFactories = {
toMatchGolden(util: jasmine.MatchersUtil): jasmine.CustomMatcher {
return {
compare(actual: {command: string}, golden: string): jasmine.CustomMatcherResult {
if (goldens.includes(golden)) {
console.error(`Writing golden file ${golden}`);
writeFileSync(`./goldens/${golden}`, JSON.stringify(actual, null, 2));
return { pass : true };
}
const content = readFileSync(`./goldens/${golden}`, 'utf-8');
const expected = JSON.parse(content.replace("${PWD}", process.env.PWD!));
const pass = util.equals(actual, expected);
return {
pass,
message: `Expected ${JSON.stringify(actual, null, 2)} to match golden ` +
`${JSON.stringify(expected, null, 2)}.\n` +
`To generate new golden file, run "yarn golden ${golden}".`,
};
}
};
},
};
declare global {
namespace jasmine {
interface Matchers<T> {
toMatchGolden(golden: string): void
}
}
}