• MSTest.exe Command-Line Options MSTest.exe is the command-line command that is used to run tests. This command has several options you can use to customize your test run. You can use many of these options in conjunction with one another; in fact, you must use certain options in conjunction with others, as described in the following sections.
• At the moment my tests are running only in Firefox, because that is the driver which initialize at last. I need to run my tests on both Firefox and Chrome. Parallel or serially.

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• Mstest Driver Updater
• Mstest Driver Jobs
• Mstest Driver Licence
• Mstest Verbosity
• Mstest 2.0

Chrome WebDriver (make sure the driver version matches the browser version) 1. Creating the.NET Core test project # mkdir SeleniumDotNet cd SeleniumDotNet dotnet new solution mkdir Demo.SeleniumTests cd Demo.SeleniumTests dotnet new mstest cd. Dotnet sln add Demo.SeleniumTests Using the above commands, the skeleton of your test project is.

Transcripted Summary

In just a few minutes, we're going to jump into Visual Studio and actually start writing some tests and start automating some browsers. Before we do that, I have to lay some foundational knowledge on you, especially about MsTest, which is a unit testing framework provided to us by Microsoft.

A unit testing framework is basically an easy way for us to be able to combine a bunch methods and classes into multiple operations and then execute them as tests. These frameworks provide us amazing things such as being able to perform assertions, drive our tests with data, and categorize and group our tests. It basically makes test execution and automating our tests extremely easy.

MsTest is a framework that's provided to us by Visual Studio automatically. Whenever we download it, it's in there. It's out of the box. It's really fast. It's very user friendly. Microsoft has been doing a lot of work on it and this framework is becoming extremely amazing.

There are other third-party frameworks out there, such as NUnit, which is also very popular, so you may want to check that out. Also, MsTest framework is very similar to other unit testing frameworks if you're familiar with other programming languages, such JUnit, Mocha or Espresso.

One of the most important things about other testing frameworks, but specifically about MsTest, is that they provide us attributes. Attributes are a way to tell the compiler about what is going on with your code.

As you can see here, we have a standard unit test.

A unit test lives inside a public class and that class is tagged with an attribute known as a [TestClass]. That's a MsTest attribute that tells the compiler that we have a test class. It's not a regular class, but a test class that can be executed and provide some kind of a result.

Inside of our test classes, we have test methods, denoted by [TestMethod]. Test methods tell the compiler that here we have a method that's going to be executed as a test.

All of our actions such as interacting with Selenium, interacting with browsers, and doing assertions go inside of our the test method. Ultimately, whenever that test method passes or fails, we're going to get a result on that test method. All test methods need to be public and void.

Note

This course is not meant to be a comprehensive course in MsTest. If you want to learn more, there are plenty of other resources. I've provided a bunch of other attributes that are provided to us from MsTest from Microsoft.

As you can see, there are many different options and many different attributes that we can add. Options that allow us to datadrive our test. They allow us to clean up and tear down our test data and there are so many other options.

The other really important part about MsTest is the assertions. That's where all the power comes from that allows us to basically validate that an object is in some specific state or that one object matches to another object or any kind of validation that we're trying to do. We do that through assertions.

There are many different kinds of assertions. We can check that 'one plus one equals two' or we can check that an element exists on a page.

Again, there are many different methods. This is not a comprehensive course on MsTest, but just know that these assertions basically are a key part of all of our tests. As we start digging into the code, you will see us using these assertions to be able to set a pass or fail state for all of our test methods. All MsTest assertions can be found on their website.

Resources

• Getting Started
• Using KUnit
• kunit_tool How-To
• API Reference
• Test Style and Nomenclature
• Frequently Asked Questions

What is KUnit?¶

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KUnit is a lightweight unit testing and mocking framework for the Linux kernel.

KUnit is heavily inspired by JUnit, Python’s unittest.mock, andGoogletest/Googlemock for C++. KUnit provides facilities for defining unit testcases, grouping related test cases into test suites, providing commoninfrastructure for running tests, and much more.

KUnit consists of a kernel component, which provides a set of macros for easilywriting unit tests. Tests written against KUnit will run on kernel boot ifbuilt-in, or when loaded if built as a module. These tests write out results tothe kernel log in TAP format.

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To make running these tests (and reading the results) easier, KUnit offerskunit_tool, which builds a User Mode Linux kernel, runs it, and parses the testresults. This provides a quick way of running KUnit tests during development,without requiring a virtual machine or separate hardware.

Get started now: Getting Started

Why KUnit?¶

A unit test is supposed to test a single unit of code in isolation, hence thename. A unit test should be the finest granularity of testing and as such shouldallow all possible code paths to be tested in the code under test; this is onlypossible if the code under test is very small and does not have any externaldependencies outside of the test’s control like hardware.

KUnit provides a common framework for unit tests within the kernel.

KUnit tests can be run on most architectures, and most tests are architectureindependent. All built-in KUnit tests run on kernel startup. Alternatively,KUnit and KUnit tests can be built as modules and tests will run when the testmodule is loaded.

Note

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KUnit can also run tests without needing a virtual machine or actualhardware under User Mode Linux. User Mode Linux is a Linux architecture,like ARM or x86, which compiles the kernel as a Linux executable. KUnitcan be used with UML either by building with ARCH=um (like any otherarchitecture), or by using kunit_tool.

KUnit is fast. Excluding build time, from invocation to completion KUnit can runseveral dozen tests in only 10 to 20 seconds; this might not sound like a bigdeal to some people, but having such fast and easy to run tests fundamentallychanges the way you go about testing and even writing code in the first place.Linus himself said in his git talk at Google:

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In this context Linus was talking about branching and merging,but this point also applies to testing. If your tests are slow, unreliable, aredifficult to write, and require a special setup or special hardware to run,then you wait a lot longer to write tests, and you wait a lot longer to runtests; this means that tests are likely to break, unlikely to test a lot ofthings, and are unlikely to be rerun once they pass. If your tests are reallyfast, you run them all the time, every time you make a change, and every timesomeone sends you some code. Why trust that someone ran all their testscorrectly on every change when you can just run them yourself in less time thanit takes to read their test log?

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How do I use it?¶

Mstest 2.0

• Getting Started - for new users of KUnit
• Using KUnit - for a more detailed explanation of KUnit features
• API Reference - for the list of KUnit APIs used for testing
• kunit_tool How-To - for more information on the kunit_tool helper script
• Frequently Asked Questions - for answers to some common questions about KUnit