> On Apr 15, 2017, at 9:49 PM, Xiaodi Wu via swift-evolution > <[email protected]> wrote: > > For example, I expect `XCTAssertEqual<T : FloatingPoint>(_:_:)` to be vended > as part of XCTest, in order to make sure that > `XCTAssertEqual(resultOfComputation, Double.nan)` always fails.
Unit tests strike me as an example of where you really *don't* want level 1 comparison semantics. If I'm testing the output of an FP operation, I want to be able to test that it produces nan when I expect it to, or that it produces the right zero. -Joe _______________________________________________ swift-evolution mailing list [email protected] https://lists.swift.org/mailman/listinfo/swift-evolution
