Hamcrest matching.

Hamcrest with Collections / Arrays:
NB.  These are available in a test with imports in my hamcrest examples test class.

Looking for one thing in an array.
        String[] array = { "A", "B", "C" };
        assertThat(array, hasItemInArray("A"));

Looking for an array of items in a list.
        String[] expected = { "A", "B", "C" };
        assertThat(Arrays.asList(array), hasItems(expected));

Looking for an item in a list.
        assertThat(Arrays.asList(array), hasItem("A"));

Looking for items in a list.
        assertThat(Arrays.asList(array), hasItems("A", "C"));