### Question:
Tokens { public static Fragment integerLiteral(String s) { return fragment(s, Tag.INTEGER); } private  Tokens(); static Fragment fragment(String text, Object tag); static Fragment reserved(String name); static Fragment identifier(String name); static Fragment decimalLiteral(String s); static Fragment integerLiteral(String s); static ScientificNotation scientificNotation(String significand, String exponent);  }### Answer:
@Test public void testInteger() { assertFragment(Tokens.Tag.INTEGER, "123", Tokens.integerLiteral("123")); }