@Test public void isEmpty_returnsTrue_whenCalled_withNull() throws Exception { assertThat(StringFunctions.isEmpty().test(null)).isTrue(); }
@NonNull public static Predicate<String> isEmpty() { return TextUtils::isNullOrEmpty; }
StringFunctions { @NonNull public static Predicate<String> isEmpty() { return TextUtils::isNullOrEmpty; } }
StringFunctions { @NonNull public static Predicate<String> isEmpty() { return TextUtils::isNullOrEmpty; } private  StringFunctions(); }
StringFunctions { @NonNull public static Predicate<String> isEmpty() { return TextUtils::isNullOrEmpty; } private  StringFunctions(); @NonNull static Predicate<String> isEmpty(); @NonNull static Predicate<String> isNotEmpty(); }
StringFunctions { @NonNull public static Predicate<String> isEmpty() { return TextUtils::isNullOrEmpty; } private  StringFunctions(); @NonNull static Predicate<String> isEmpty(); @NonNull static Predicate<String> isNotEmpty();  }