@Test
public void testCreateSequenceHeaderWhenThereIsSourceParameter() {

    //GIVEN
    String testKeyFirst = "TestKey1";
    String testKeySecond = "TestKey2";
    String expected = testKeyFirst + SequenceConstants.SEQUENCE_KEY_SEPARATOR.getConstant() + testKeySecond;
    //WHEN
    String result = underTest.createSequenceHeader(testKeyFirst, testKeySecond);
    //THEN
    Assert.assertEquals(result, expected);
}