@Test
public void testAddSequenceDescriptorWhenDescriptorsIsNotNull() {

    //GIVEN
    String descriptorKey = "TestTeam-fistDescriptor-TestHandler";
    //WHEN
    underTest.addSequenceDescriptor(descriptorKey, sequenceDescriptor);
    //THEN
    Map<String, SequenceDescriptor> result = (Map<String, SequenceDescriptor>) Whitebox.getInternalState(underTest, "descriptors");
    Assert.assertEquals(result.get(descriptorKey), sequenceDescriptor);
}