@Test
public void testTextContainsBlanks() {

    Assert.assertFalse(TextUtils.containsBlanks(null));
    Assert.assertFalse(TextUtils.containsBlanks(""));
    Assert.assertTrue(TextUtils.containsBlanks("   "));
    Assert.assertTrue(TextUtils.containsBlanks("\t"));
    Assert.assertTrue(TextUtils.containsBlanks(" a"));
    Assert.assertFalse(TextUtils.containsBlanks("a"));
}