@Test
public void guid() {

    assertNotNull(MathTestConstants.NULL_GUID, testVector.guid());
    assertEquals(MathTestConstants.UNEXPECTED_GUID_VAL, testVector.guid(), testVector.guid());
    assertFalse(MathTestConstants.EMPTY_GUID, testVector.guid().toString().isEmpty());
    testVector = getAbstractVector(createStorage());
    assertNotNull(MathTestConstants.NULL_GUID, testVector.guid());
    assertEquals(MathTestConstants.UNEXPECTED_GUID_VAL, testVector.guid(), testVector.guid());
    assertFalse(MathTestConstants.EMPTY_GUID, testVector.guid().toString().isEmpty());
}