My current test and many other tests take less than one second to run, but it is annoying to disable and then enable specific unit tests.I create tests by right-clicking any code and selecting create unit test which creates a project.Didnt realize that to debug I needed to lift my finger off the CTRL key, and then press it again.You can also click on the class or namespace if you want to run all TestMethod s within that classnamespace.
You can also use Test Explorer to group tests into categories, filter the test list, and create, save, and run playlists of tests. Visual Studio for Macs integrated test runner helps you run and debug unit tests and automated UI tests. Provide details and share your research But avoid Asking for help, clarification, or responding to other answers. Making statements based on opinion; back them up with references or personal experience. When you deploy your app to a device or emulator, time is taken copying the code over, and anything that can make your app smaller is a good thing as this reduces the time to install. This means weve written the bulk of our code and weve also written unit tests for it, giving us a degree of confidence that our code works. Its great to have a property on a view model that we bind to a text field to allow the user to enter the name of a counter, but what if we accidentally use the wrong control, such as a label instead of a text box, or even use the right control but forget to add the binding code What if weve used a feature that was only added to the Android SDK in API 21 but our app manifest shows our app runs on API 19 and higher This is where UI testing comes in - it allows us to run our app on emulators, simulators, and devices, and to write automated tests in code against it. This kind of testing started out life for desktop apps, where the aim was to make testing more reliable and cheaper - after all, humans are expensive and after testing the same screen many, many times they can get bored and make mistakes or miss problems. Automated UI testing also allowed for better time usage with tests being run overnight and developers discovering if theyve broken anything the next morning. We want to support two major OSes with our cross-platform app, with multiple versions. On iOS this isnt too bad - we only need to support a small number of OS versions (maybe the current one and the previous) and a small number of different devices, but on Android, as weve already seen its a mess with multiple OS versions in regular use, a huge range of screen sizes available, and worst of all customizations to the OS from both the hardware manufacturer and carrier. A human cant test on a wide range of devices without needing a lot of time or lots of humans involved in the process (expensive) and without them all going mad as they install the app on another device and run the same test for the millionth time. This code uses some kind of framework that is able to launch your app and interact with it as if it was a real user. Many different frameworks are around for testing, and the table below shows some of these. UITest is a layer on top of this that allows you to write your tests in C and run them using NUnit. These tests are written in the same way as unit tests using the arrange, act, assert pattern, with the arrange part launching the app and getting it to the relevant state ready to test, the act interacts with the UI as if it was a user, and the assert queries the UI to ensure its in the correct state. Visual Studio Open Unit Test And Application Download The SourceYou can download the source code from this book here, so download this and open the completed Countr solution from chapter 13. When we built the model layer in our app, we added a new unit test project that we used for unit tests for both the model and view model layers. For our UI tests, we also need a new project that contains and runs our UI tests. For Mac, right-click on the solution and select AddAdd New Project, select MultiplatformTests on the left and UI Test App from the middle and tap Next. Name your project Countr.UITests and click OK (Windows) or Create (Mac). Visual Studio Open Unit Test And Application Update This PackageUITest only works with NUnit 2, not NUnit 3 and if you update this package your tests wont work and youll need to remove the package and re-install NUnit 2. UITest has an IApp interface used to represent your running app, and this has methods on it for interacting with the UI elements in your app or to a limited extent the device hardware (for example rotating the device). The StartApp method returns an instance of IApp that your tests can use. This method uses a helper class called ConfigureApp to start the app, and this helper class has a fluent API that allows you to configure and run your app. The auto-generated code doesnt do much to configure the app, it specifies its type (Android or iOS) based on the platform passed in to the method. This test fixture has a parameterized constructor that takes the platform to run the tests on as one of the values from the Platform enum, either Platform.iOS or Platform.Android, and has two TestFixture attributes, one for each platform. This means that we have two test fixtures - one Android and one iOS. This fixture has a setup method that uses the AppInitializer to start the app before each test, and a single test that calls the Screenshot method on the IApp returned from the app initializer to take a screenshot.
0 Comments
Leave a Reply. |