exp-dotnet-test-frameworks

# .NET Test Framework Reference Language-specific detection patterns for .NET test frameworks (MSTest, xUnit, NUnit, TUnit). ## Test File Identification | Framework | Test class markers | Test method markers | | --------- | ------------------ | ------------------- | | MSTest | `[TestClass]` | `[TestMethod]`, `[DataTestMethod]` | | xUnit | _(none — convention-based)_ | `[Fact]`, `[Theory]` | | NUnit | `[TestFixture]` | `[Test]`, `[TestCase]`, `[TestCaseSource]` | | TUnit | `[ClassDataSource]` | `[Test]` | ## Assertion APIs by Framework | Category | MSTest | xUnit | NUnit | | -------- | ------ | ----- | ----- | | Equality | `Assert.AreEqual` | `Assert.Equal` | `Assert.That(x, Is.EqualTo(y))` | | Boolean | `Assert.IsTrue` / `Assert.IsFalse` | `Assert.True` / `Assert.False` | `Assert.That(x, Is.True)` | | Null | `Assert.IsNull` / `Assert.IsNotNull` | `Assert.Null` / `Assert.NotNull` | `Assert.That(x, Is.Null)` | | Exception | `Assert.Throws<T>()` / `Assert.ThrowsExactly<T>()` | `Assert.Throws<T>()` | `Assert.That(() => ..., Throws.TypeOf<T>())` | | Collection | `CollectionAssert.Contains` | `Assert.Contains` | `Assert.That(col, Has.Member(x))` | | String | `StringAssert.Contains` | `Assert.Contains(str, sub)` | `Assert.That(str, Does.Contain(sub))` | | Type | `Assert.IsInstanceOfType` | `Assert.IsAssignableFrom` | `Assert.That(x, Is.InstanceOf<T>())` | | Inconclusive | `Assert.Inconclusive()` | _skip via `[Fact(Skip)]`_ | `Assert.Inconclusive()` | | Fail | `Assert.Fail()` | ...