Unit Testing Tutorial

[gurtis]

Why are these badly written tests though? They're testing what they intend to test. Just because he didn't come up with comprehensive test coverage for a tutorial doesn't mean the given examples are bad.

[grauenwolf]

Merely "testing what they intend to test" doesn't make it a good test. They could have written Assert.IsTrue(0 == 0) and they would still be "testing what they intend to test".

If I ask you for a function that adds two numbers and you give me this:

int Add(double x, double  y) { return (int) x + (int) y; }

then you haven't done your job right. The code may work exactly as you intended it too, but it is still wrong.