NullPointerTester tester = new NullPointerTester();
tester.testAllPublicStaticMethods(ImmutableSortedMap.class);
tester.testAllPublicInstanceMethods(
ImmutableSortedMap.<String, Integer>naturalOrder());
tester.testAllPublicInstanceMethods(ImmutableSortedMap.of());
tester.testAllPublicInstanceMethods(ImmutableSortedMap.of("one", 1));
tester.testAllPublicInstanceMethods(
ImmutableSortedMap.of("one", 1, "two", 2, "three", 3));
}
private static <K, V> void assertMapEquals(Map<K, V> map,