Function matchDomText

packages/core/test/render3/matchers.ts:213–236

(
  expectedText: string | undefined = undefined,
)

 * @param expectedText optional DOM text.
 */
export function matchDomText(
  expectedText: string | undefined = undefined,
): jasmine.AsymmetricMatcher<Text> {
  const matcher = function () {};
  let _actual: any = null;

  matcher.asymmetricMatch = function (actual: any) {
    _actual = actual;
    if (!isDOMText(actual)) return false;
    if (expectedText && expectedText !== actual.textContent) {
      return false;
    }
    return true;
  };
  matcher.jasmineToString = function () {
    let actualStr = isDOMText(_actual)
      ? `#TEXT: ${JSON.stringify(_actual.textContent)}`
      : JSON.stringify(_actual);
    let expectedStr = `#TEXT: ${JSON.stringify(expectedText)}`;
    return `[${actualStr} != ${expectedStr}]`;
  };

  return matcher;
}

export function matchI18nMutableOpCodes(
  expectedMutableOpCodes: string[],