Complex c = new Complex(2,-5); @Test public void testComplexAdd(){ assertEquals("5.0+2.0i",b.ComplexAdd(c)+""); } @Test public void testComplexMulti(){ assertEquals("41.0-1.0i",b.ComplexMulti(c)+""); } @Test public void testComplexDiv(){ assertEquals("-0.034482758620689655-3.625i...