All unit test methods use Assertions to validate the result produced by the System Under the Test and present the user with a test method result. It is the assertion that will make a decision whether the test method is passing or failing. This blog post contains a list of assertions you can use with…
Read More A List of XCTest AssertionsIn this tutorial, you will learn how to build and run Xcode Unit Tests from the command line. Command Line Tools Package for Xcode To be able to build and test your project using the terminal window you will need to have the Command Line Tools package installed on your machine. If the machine you…
Read More Run Xcode Unit Tests From The Command LineWhen writing code we come up with method or function names all the time. And it is pretty much up to us developers how to name our methods. When writing Unit Tests in Xcode there are a few little requirements for a test method name which we must follow if we want our test method…
Read More Naming iOS Unit Test MethodsThere is a number of ways to disable a unit test in Xcode although it might not seem very obvious at first. In this blog post, I will share with you just a few that I personally use from time to time. Why Disable Unit Test? I am a strong advocate to always write unit…
Read More How to Disable or Skip Unit Test in XcodeUnit tests in Xcode can run in different orders. They can run in alphabetical order, randomized or executed in parallel. The default order in which Xcode runs unit tests is alphabetical. In this blog post, you will learn how the alphabetical order works. The Flow of Unit Test Execution For each test method, a new…
Read More The Order of Unit Tests in XcodeWhen we take the Test Driven Development(TDD) approach to write code we eventually ask ourselves a couple of questions: Have I covered all possible use cases? Have I written enough unit tests? What helps me is writing a bulleted list of functional requirements for the feature I am developing. Having a clear list of things…
Read More Swift TDD. How Many Unit Tests to Write?When writing a Unit test for a piece of code, we need to isolate this piece of code from all other dependencies it has. These dependencies are objects of other classes that do not need to be tested in this particular unit test. For example, a piece of code we are unit testing might depend…
Read More Test Doubles in Swift – Dummy, Stub, Fake, Mock and SpyIn this short tutorial, you will learn how to set a different font on UIButton in Swift programmatically. There are lots of different customization you can with UIButton. For example, you might be also interested to learn how to create UIButton and change its style, background color, tint color and make it call a function…
Read More Set UIButton Font Programmatically in SwiftThis blog post will give you a brief introduction to a Test-Driven Development(TDD) in Swift and will demonstrate how you can create a very basic Unit test in Swift to test a User Model Struct that holds the details of the Account Registration form. Assume that you need to follow the Test-Driven development approach to…
Read More Swift Unit Test of User Registration ModelIn this tutorial, you will learn how to create UIButton programmatically. You will also learn how to do the basic customization of UIButton like setting button tint color, background color and making your button call a function when tapped. Create UIButton A new UIButton can be created of different types: ButtonType.custom, ButtonType.system, ButtonType.detailDisclosure, ButtonType.infoLight, ButtonType.infoDark,…
Read More Create UIButton in Swift ProgrammaticallyIn this tutorial, you will learn how to underline text on UILabel in Swift programmatically. To make the text on UILabel underlined we will need to use the NSMutableAttributedString together with NSUnderlineStyleAttributeName. The Swift code snippet below demonstrates how to create a new UILabel programmatically and then use the NSMutableAttributedString to underline the text on the label. Create a…
Read More Underline Text on UILabel in SwiftIn this Swift tutorial, you will learn how to add shadow to a text on UILabel in Swift. The Swift code example below adds a shadow to a text on UILabel as well as set shadow offset, opacity, radius, and shadow color. Create UILabel Programmatically Before we can set a shadow to a text on…
Read More UILabel Text Shadow Example in SwiftIn this Spring Security tutorial, you will learn how to use the @PreAuthorize annotation to secure method invocation. You can use the @PreAuthorize annotation to secure either method in a Controller class or a method in a service layer class. There are other useful method-level security annotations like the ones below. It is useful to…
Read More Spring Security @PreAuthorize Annotation ExampleIf needed, it is possible to make UILabel clickable in Swift although it is recommended to use UIButton instead. To make UILabel clickable in Swift, you will need to create a UITapGestureRecognizer and then add it to a label. In this tutorial, you will learn how to create UILabel in Swift programmatically and how to…
Read More Clickable UILabel in Swift ProgrammaticallyIn this tutorial, you will learn how to make Zuul API Gateway pass an Authorization header to a downstream Microservice. To learn how to make Spring Boot Microservice read HTTP Request headers, please read this tutorial: Read HTTP Request Header in Spring MVC. Configure Zuul API Gateway to Forward an Authorization Header By default, Zuul…
Read More Pass Authorization Header to Downstream Microservice