public void Facade_Works_Correctly()
{
// Arrange
var subsystemA = new SubsystemA();
var subsystemB = new SubsystemB();
var facade = new Facade();
var expectedOperation1 = "a: operation1" + Environment.NewLine + "b: operation1" + Environment.NewLine;
var expectedOperation2 = "a: operation2" + Environment.NewLine + "b: operation2" + Environment.NewLine;
// Act
var actualOperation1 = subsystemA.Operation1() + subsystemB.Operation1();
var actualOperation2 = subsystemA.Operation2() + subsystemB.Operation2();
var actualFacadeOperation1 = facade.Operation1();
var actualFacadeOperation2 = facade.Operation2();
// Assert
Assert.AreEqual(expectedOperation1, actualOperation1);
Assert.AreEqual(expectedOperation2, actualOperation2);
Assert.AreEqual(expectedOperation1, actualFacadeOperation1);
Assert.AreEqual(expectedOperation2, actualFacadeOperation2);
}
public void FacadeOperation2()
{
_subsystemB.Operation2();
_subsystemC.Operation3();
}