@Test
public void testCurrentSpan() {

    // Setup
    final Span span = mock(Span.class);
    when(mockTracer.getCurrentSpan()).thenReturn(span);
    // Run the test
    final Span result = kermossTracerUnderTest.currentSpan();
    // Verify the results
    verify(mockTracer).getCurrentSpan();
    assertEquals(span, result);
}