public void testStringConverter_nullPointerTester() throws Exception {
    NullPointerTester tester = new NullPointerTester();
    tester.testAllPublicInstanceMethods(Ints.stringConverter());
  }

  public void testTryParse() {
    tryParseAndAssertEquals(0, "0");
    tryParseAndAssertEquals(0, "-0");
    tryParseAndAssertEquals(1, "1");
    tryParseAndAssertEquals(-1, "-1");
    tryParseAndAssertEquals(8900, "8900");