public void CreateModule_Always_ReturnsExpectedType() { // Setup var factory = new TestBalancedFieldLengthCalculationModuleFactory(); // Call IBalancedFieldLengthCalculationModule calculationModule = factory.CreateModule(); // Assert Assert.That(calculationModule, Is.TypeOf <TestBalancedFieldLengthCalculationModule>()); Assert.That(calculationModule, Is.SameAs(factory.TestModule)); }