Order of functions in unit testing

In a XCTestCase, every method starting with test gets called in an alphabetical order. So if you want to have them called in a specific order, you need to prefix them with a letter, which looks awkward, or a number.

func test1_FunctionName() {
	/// Gets called first.
}

func test2_AnotherFunctionName() {
	/// Gets called after the above function.
}