public void GetStartAndEndIndexes_StartAndEndGeneratedEqual_StartAndEndNotEqual() { rg = new MockRandomGeneratorMin(); var(start, end) = mg.GetStartAndEndIndexes(rg, 2); // MockRandomGeneratorMin will have generated 0 for both start and end indexes. // The internals of GetStartAndEndIndexes should change end index to something else. Assert.NotEqual(start, end); }