public void AddOperationTemplated_ExistingType_ThrowsArgumentException()
{
// Arrange
OperationStore store = new OperationStore();
Func <QuantityBase, QuantityBase, QuantityBase> operation = CreateMockOperation().Object.Operation;
store.AddOperation <Quantity <float>, Quantity <double> >(operation);
// Act/assert
Assert.Throws <ArgumentException>(() => store.AddOperation <Quantity <float>, Quantity <double> >(operation));
}
public void AddOperation_TypeDoesNotInheritdQuantityBase_ThrowsInvalidCastException()
{
// Arrange
OperationStore store = new OperationStore();
Func <QuantityBase, QuantityBase, QuantityBase> operation = CreateMockOperation().Object.Operation;
// Act/assert
Assert.Throws <InvalidCastException>(() => store.AddOperation(typeof(string), typeof(int), operation));
}
public void AddOperation_ValidTypes_DoesNotThrow()
{
// Arrange
OperationStore store = new OperationStore();
Func <QuantityBase, QuantityBase, QuantityBase> operation = CreateMockOperation().Object.Operation;
// Act/assert
Assert.DoesNotThrow(() => store.AddOperation(typeof(Quantity <float>), typeof(Quantity <float>), operation));
}
public void PerformOperation_CommutativeTypes_ThrowsInvalidOperationException()
{
// Arrange
OperationStore store = new OperationStore();
var mockOperation = CreateMockOperation();
store.AddOperation <int, float>(mockOperation.Object.Operation);
// Act/Assert
Assert.Throws <InvalidOperationException>(() => store.PerformOperation(CreateStubQuantity <float>(),
CreateStubQuantity <int>()));
}
public void PerformOperation_RegisteredTypes_InvokesOperation()
{
// Arrange
OperationStore store = new OperationStore();
var mockOperation = CreateMockOperation();
store.AddOperation <int, int>(mockOperation.Object.Operation);
// Act
store.PerformOperation(CreateStubQuantity <int>(), CreateStubQuantity <int>());
// Assert
mockOperation.Verify(x => x.Operation(It.IsAny <QuantityBase>(), It.IsAny <QuantityBase>()), Times.Once());
}