code: public void assertEqualsIgnoringCase(@Nullable Description description, @Nullable String actual,
        @Nullable String expected) {
      if (!areEqualIgnoringCase(actual, expected)) {
        String format = "expecting:<%s> to be equal to:<%s>, ignoring case considerations";
        throw failures.failure(description, new BasicErrorMessageFactory(format, actual, expected));
      }
    }
docs: Verifies that two {@code String}s are equal, ignoring case considerations.
  
  @param description the description of the <em>actual</em> {@code String}.
  @param actual the <em>actual</em> {@code String}.
  @param expected the expected {@code String}.
  @throws AssertionError if the given {@code String}s are not equal.