Generic XUnit ClassFixture

ClassFixture.cs

public class DatabaseFixture<T> : IDisposable
{
    public DatabaseFixture<T>()
    {
		// Do something interesting with the Generic parameter like initialize
		// a database dynamically based on generic type.
		
        Db = new SqlConnection("MyConnectionString");

        // ... initialize data in the test database ...
    }

    public void Dispose()
    {
        // ... clean up test data from the database ...
    }

    public SqlConnection Db { get; private set; }
}

public class MyDatabaseTests : IClassFixture<DatabaseFixture<MyDatabaseTests>>, IDisposable
{
    DatabaseFixture<MyDatabaseTests> fixture;

    public MyDatabaseTests(DatabaseFixture<MyDatabaseTests> fixture)
    {
        this.fixture = fixture;
    }

    // ... write tests, using fixture.Db to get access to the SQL Server ...
	
	public void Dispose()
	{
		fixture.Respawn(); // Respawn logic to clear out your data.
	}
}