# \[TestClass\] and \[TestMethod\]

*noun*

say it: **“TEST klas and TEST METH-ud”** **/tɛst klæs ænd tɛst ˈmɛθəd/**

The two MSTest attributes that mark a class as holding tests and each method in it as one test.

## What do **[TestClass]** and **[TestMethod]** mark in MSTest?

**[TestClass] and [TestMethod]** — The two MSTest attributes every test needs. `[TestClass]` marks a public class that holds tests, and `[TestMethod]` marks each method in it to run as one test. A method without it is never run.

```csharp
[TestClass]
public class ScoreboardTests
{
    [TestMethod]
    public void HomeScores_AddsPoints() { /* ... */ }
}
```

## In a sentence

- “I forgot **TestMethod** on the new test, so the test runner never ran it.”

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/testclass-and-testmethod