csharp-mstest

Topics in the source

• MSTest Best Practices (MSTest 3.x/4.x)
• Project Setup
• Test Class Structure
• Test Lifecycle
• Execution Order
• Modern Assertion APIs
• Assert Class - Core Assertions
• Exception Testing (Prefer over [ExpectedException])

Your goal is to help me write effective unit tests with modern MSTest, using current APIs and best practices. Use a separate test project with naming convention [ProjectName].Tests Reference MSTest 3.x+ NuGet packages (includes analyzers) Consider using MSTest.Sdk for simplified project setup Run tests with dotnet test Use [TestClass] attribute for test classes Seal test classes by default for performance and design clarity Use [TestMethod] for test methods (prefer over [DataTestMethod]) Follow Arrange-Act-Assert (AAA) pattern Name tests using pattern MethodNameScenarioExpectedBehavior Prefer constructors over [TestInitialize] - enables readonly fields and follows standard C# patterns Use [TestCleanup] for cleanup that must run even if test fails Combine constructor with async [TestInitialize] when async setup is needed 1. Assembly Initialization - [AssemblyInitialize] (once per test assembly) 2. Class Initialization - [ClassInitialize] (once per test class) 3. Test Initialization (for every test method): 1. Constructor 2. Set TestContext property 3. [TestInitialize] 4. Test Execution - test method runs 5. Test Cleanup (for every test method): 1. [TestCleanup] 2. DisposeAsync (if i

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