public void Devices_AddPartThrowsException_WhenPartNotCompatible(string type)
{
switch (type)
{
case "Laptop":
var laptop = new Laptop("make");
Assert.Throws <InvalidOperationException>(() => laptop.AddPart(phonePart))
.Message.Equals($"You cannot add {phonePart.GetType().Name} to {this.GetType().Name}!");
Assert.Throws <InvalidOperationException>(() => laptop.AddPart(pcPart))
.Message.Equals($"You cannot add {pcPart.GetType().Name} to {this.GetType().Name}!");
break;
case "PC":
var pc = new PC("make");
Assert.Throws <InvalidOperationException>(() => pc.AddPart(laptopPart))
.Message.Equals($"You cannot add {laptopPart.GetType().Name} to {this.GetType().Name}!");
Assert.Throws <InvalidOperationException>(() => pc.AddPart(phonePart))
.Message.Equals($"You cannot add {phonePart.GetType().Name} to {this.GetType().Name}!");
break;
case "Phone":
var phone = new Phone("make");
Assert.Throws <InvalidOperationException>(() => phone.AddPart(pcPart))
.Message.Equals($"You cannot add {pcPart.GetType().Name} to {this.GetType().Name}!");
Assert.Throws <InvalidOperationException>(() => phone.AddPart(laptopPart))
.Message.Equals($"You cannot add {laptopPart.GetType().Name} to {this.GetType().Name}!");
break;
}
}
public void TestAddPartLaptopWithNonLaptopPart()
{
IPart part = new PCPart("GPU", 150, false);
string expectedExceptionMessage = $"You cannot add {part.GetType().Name} to {this.laptop.GetType().Name}!";
Assert.That(() => this.laptop.AddPart(part), Throws.InvalidOperationException.With.Message.EqualTo(expectedExceptionMessage));
}
public void TestAddPartPhoneWithNonPhonePart()
{
IPart part = new PCPart("GPU", 150, false);
Phone phone = new Phone("Samsung");
string expectedExceptionMessage = $"You cannot add {part.GetType().Name} to {phone.GetType().Name}!";
Assert.That(() => phone.AddPart(part), Throws.InvalidOperationException.With.Message.EqualTo(expectedExceptionMessage));
}