XCTExpectFailure is a function in XCTest framework which tackles the problem of managing failing tests. Test which are broken, but not ready to be fixed. An example use-case is when refactoring code which causes some tests to fail but since the whole refactoring is far for complete we might want to hold off fixing tests now because everything can change yet again. This is when we can use XCTExpectFailure function to mark the entire test or just a code block in a test as an expected failure. Every time we… Read more Using XCTExpectFailure in XCTests →
Xcode provides a cross-platform app template in SwiftUI which can be built for macOS and iOS. This template includes a Shared folder which is meant for code used both on macOS and iOS. Many SwiftUI types and functions work both on macOS and iOS but along with developing an app we’ll encounter cases where we need to specialize per platform. When I was building a multiplatform app then the very first thing I encountered was list styles. On macOS I wanted to use a different list style than on iOS… Read more Structuring platform specific code in SwiftUI →
Instruments is an application bundled with Xcode. It enables to measure application performance in variety of ways. Performance is extremely important as it keeps application responsive and in other things less CPU usage also means longer battery life. Time profiler is one of the instruments which can be used for measuring your application. What it does is that it samples the application 1000 times per second and records function backtraces in each of the sample. It gives a pretty good overview of what the application was doing when the information… Read more An overview of the time profiler in Instruments →
I was looking at formatters provided by Foundation framework and this time I would like to put some attention on MeasurementFormatter. Like the name says, it is used for creating… Read more Measurement, Unit, Dimension, and MeasurementFormatter on iOS →
I am happy to announce that Signal Path 2.0 is available now for macOS and iOS. Signal Path uses Apple’s universal purchase offering – buy it once for both platforms.… Read more Signal Path 2.0 for iOS and macOS is available now! →
Metal framework on Apple devices provides a way of using GPU for running complex computing tasks much faster than on CPU. In this blog post I am giving a quick… Read more Processing data using Metal →
Augmented Code 