public void OperationResult()
{
var operation = Operation.Create <int>(_methods.ReturnInt);
Assert.AreEqual(operation.Result, 1);
Assert.IsTrue(operation.Succeeded);
}
public static Operation <V> SelectMany <T, U, V>(this Operation <T> operation, Func <T, Operation <U> > process, Func <T, U, V> projection)
{
if (operation.Succeeded)
{
var op2 = process(operation.Result);
if (op2.Succeeded)
{
return(Operation.Create(() => projection(operation.Result, op2.Result)));
}
else
{
return(new Operation <V>(op2.GetException())
{
Succeeded = false,
Message = op2.Message,
Result = default(V)
});
}
}
return(new Operation <V>(operation.GetException())
{
Succeeded = false,
Result = default(V),
Message = operation.Message,
});
}
public static Operation Next(this Operation operation, Action process)
{
if (operation.Succeeded)
{
return(Operation.Create(process));
}
return(operation);
}
public void OperationCreationFailure()
{
var operation = Operation.Create(() =>
{
throw new Exception("The Error");
});
Assert.IsFalse(operation.Succeeded);
Assert.AreEqual(operation.Message, "The Error");
}
public static Operation Next <T>(this Operation <T> operation, Action <T> process)
{
if (operation.Succeeded)
{
return(Operation.Create(() => process(operation.Result)));
}
return(new Operation()
{
Message = operation.Message,
Succeeded = operation.Succeeded,
});
}
public static Operation <U> Next <T, U>(this Operation <T> operation, Func <T, U> process)
{
if (operation.Succeeded)
{
return(Operation.Create(() => process(operation.Result)));
}
return(new Operation <U>(operation.GetException())
{
Succeeded = false,
Result = default(U),
Message = operation.Message
});
}
public static Operation <T> Next <T>(this Operation operation, Func <T> process)
{
if (operation.Succeeded)
{
return(Operation.Create(process));
}
return(new Operation <T>(operation.GetException())
{
Succeeded = false,
Result = default(T),
Message = operation.Message,
});
}
public static Operation <IEnumerable <V> > SelectMany <T, U, V>(this Operation <T> operation, Func <T, IEnumerable <U> > process, Func <T, U, V> projection)
{
if (operation.Succeeded)
{
var op2 = Operation.Create(() => process(operation.Result));
return(op2.Next((enumerable) => enumerable.Select(x => projection(operation.Result, x))));
}
return(new Operation <IEnumerable <V> >(operation.GetException())
{
Succeeded = false,
Result = default(IEnumerable <V>),
Message = operation.Message
});
}
public void OperationResultFailure()
{
var cond = true;
var operation = Operation.Create(() =>
{
if (cond)
{
throw new Exception("The Error");
}
return(1);
});
Assert.IsFalse(operation.Succeeded);
Assert.AreEqual(operation.Message, "The Error");
Assert.AreEqual(operation.Result, default(int));
}
public void OperationCreationSuccess()
{
var operation = Operation.Create(_methods.Print);
Assert.IsTrue(operation.Succeeded);
}
public void CreateSuccess()
{
var operation = Operation.Create(_methods.Void);
Assert.IsTrue(operation.Succeeded);
}