/// <summary>
/// Verifies this expectation, when the method is called
/// </summary>
public void Verify( )
{
if (!ActualMethodCallWasSet)
{
Assertion.Fail(String.Format(
"{0}({1}) expected but never called.",
ExpectedMethodName,
argsToString(_argumentExpectations)
));
}
if (ExpectedMethodName != ActualMethodName && _expectationType == ExpectationMethodType.Call)
{
Assertion.Fail(String.Format(
"{0}({1}) expected, but {2} called.",
ExpectedMethodName, argsToString(_argumentExpectations),
ActualMethodCall
));
}
if (ExpectedMethodName == ActualMethodName && _expectationType == ExpectationMethodType.NoCall)
{
Assertion.Fail(String.Format(
"{0}({1}) was not expected.",
ExpectedMethodName, argsToString(_argumentExpectations)
));
}
if (_argumentExpectations == null)
{
return;
}
object[] actualArguments = ActualMethodCall.Arguments;
// actual arguments must be equal to expectations
if (actualArguments.Length != _argumentExpectations.Length)
{
Assertion.Fail(String.Format(
"Expected {0} arguments but received {1} " +
"in method call {2}.",
_argumentExpectations.Length,
actualArguments.Length,
ActualMethodCall
));
}
// assert that each passed in arg is validated by the appropriate predicate.
for (int i = 0; i < _argumentExpectations.Length; i++)
{
object argumentExpectation = _argumentExpectations[i];
object actualArgument = actualArguments[i];
// evaluate whether input expectations have been met
IPredicate predicate =
PredicateUtils.ConvertFrom(argumentExpectation);
bool isPredicateSatisfied =
predicate.Eval(actualArgument);
if (!isPredicateSatisfied)
{
Assertion.Fail(String.Format(
"Failed to satisfy '{0}' on argument[{1}] " +
"of method call {2}",
predicate,
i,
ActualMethodCall
));
}
// return output expectations if specified
IArgumentMutator mutator =
argumentExpectation as IArgumentMutator;
if (mutator != null)
{
mutator.Mutate(ref actualArguments[i]);
}
}
if (_expectedReturnValue != null)
{
// handle return values that are ValueTypes and ensure they can be casted
// in the IL that unboxes the return value.
Type expectedReturnType = _expectedReturnValue.GetType();
Type returnType = ActualMethod.ReturnType;
if (returnType != typeof(void) && returnType.IsValueType)
{
if (returnType != expectedReturnType)
{
_expectedReturnValue = Convert.ChangeType(_expectedReturnValue, returnType);
}
}
}
// if exception setup to be thrown, throw it
if (_expectedException != null)
{
throw _expectedException;
}
}
/// <summary>
/// Chains the current instance to another predicate to evaluate when
/// exchanging parameters
/// </summary>
/// <param name="requirement">object requirement that can be converted
/// to a <see cref="IPredicate"/></param>
/// <returns>reference to this instance</returns>
public object AndRequire(object requirement)
{
_predicate = PredicateUtils.ConvertFrom(requirement);
return(this);
}