@Test
public void testStringContains() {

    assertTrue(StringContains.containsFragment("THIS IS A TEST", "THIS"));
    assertTrue(StringContains.containsFragment("THIS IS A TEST", "TEST"));
    assertTrue(StringContains.containsFragment("THIS IS A TEST", "IS A"));
    assertFalse(StringContains.containsFragment("THIS IS A TEST", "FOO"));
    assertTrue(StringContains.containsFragment("THIS IS A TEST", ""));
    assertTrue(StringContains.containsFragment("", ""));
    assertFalse(StringContains.containsFragment("", "TEST"));
}