Function warnForConsoleError

testing/console-logging-setup.js:100–131

()

 * Used during normal test execution, to detect unexpected console errors.
 */
export function warnForConsoleError() {
  expectedAsyncErrors = [];
  consoleErrorSandbox = sinon.createSandbox();
  const consoleErrorStub = consoleErrorSandbox
    .stub(console, 'error')
    .callsFake(printWarning);

  self.expectAsyncConsoleError = function (message, repeat = 1) {
    expectedAsyncErrors.push.apply(
      expectedAsyncErrors,
      Array(repeat).fill(message)
    );
  };
  self.allowConsoleError = function (func) {
    consoleErrorStub.reset();
    consoleErrorStub.callsFake(() => {});
    const result = func();
    try {
      expect(consoleErrorStub).to.have.been.called;
    } catch (e) {
      const helpMessage =
        'The test "' +
        testName +
        '" contains an "allowConsoleError" block ' +
        "that didn't result in a call to console.error.";
      originalConsoleError(helpMessage);
    } finally {
      consoleErrorStub.callsFake(printWarning);
    }
    return result;
  };
}

/**
 * Used to restore error level logging after each test.