CreateSut1.cs

public TestedObject CreateSut()
{
  return new TestedObject();
}

[Test]
public void It_does_this()
{
  var sut = CreateSut();
  var result = sut.DoThis();
  // assert result
}

[Test]
public void It_does_that()
{
  var sut = CreateSut();
  var result = sut.DoThat();
  // assert result
}