error-matcher.test.ts

import test from "ava";

import { namedMatchersForTesting } from "./error-matcher";

/*
NB We test the regexes for all the matchers against example log output snippets.
*/

test("noSourceCodeFound matches against example javascript output", async (t) => {
  t.assert(
    testErrorMatcher(
      "noSourceCodeFound",
      `
  2020-09-07T17:39:53.9050522Z [2020-09-07 17:39:53] [build] Done extracting /opt/hostedtoolcache/CodeQL/0.0.0-20200630/x64/codeql/javascript/tools/data/externs/web/ie_vml.js (3 ms)
  2020-09-07T17:39:53.9051849Z [2020-09-07 17:39:53] [build-err] No JavaScript or TypeScript code found.
  2020-09-07T17:39:53.9052444Z [2020-09-07 17:39:53] [build-err] No JavaScript or TypeScript code found.
  2020-09-07T17:39:53.9251124Z [2020-09-07 17:39:53] [ERROR] Spawned process exited abnormally (code 255; tried to run: [/opt/hostedtoolcache/CodeQL/0.0.0-20200630/x64/codeql/javascript/tools/autobuild.sh])
  `
    )
  );
});

function testErrorMatcher(matcherName: string, logSample: string): boolean {
  if (!(matcherName in namedMatchersForTesting)) {
    throw new Error(`Unknown matcher ${matcherName}`);
  }
  const regex = namedMatchersForTesting[matcherName].outputRegex;
  if (regex === undefined) {
    throw new Error(`Cannot test matcher ${matcherName} with null regex`);
  }
  return regex.test(logSample);
}