# MSTest

*noun*

say it: **“EM-ESS-test”** **/ˌɛm ˈɛs tɛst/**

Microsoft's testing framework for .NET, which finds, runs and reports C# tests.

## What is **MSTest**?

**MSTest** — Microsoft's testing framework for .NET. You mark classes and methods with its attributes, check results with `Assert`, and `dotnet test` or Visual Studio's Test Explorer finds, runs and reports every test.

```csharp
[TestClass]
public class CartTests
{
    [TestMethod]
    public void Total_WhenEmpty_IsZero()
    {
        Assert.AreEqual(0m, new Cart().Total);
    }
}
```

## In a sentence

- “Our tests use **MSTest**, so every test class is marked \[TestClass\].”

Level: Apprentice · [More Unit Testing terms at this level](https://www.ask-codey.com/glossary?category=unit-testing&level=2)

Updated: October 28, 2026

Source: https://www.ask-codey.com/glossary/mstest