/// <summary>
/// Invokes this object. The event is fired on the receiver of the invocation.
/// </summary>
/// <param name="invocation">The invocation.</param>
void IAction.Invoke(Invocation invocation)
{
if (invocation == null)
throw new ArgumentNullException("invocation");
((IMockObject) invocation.Receiver).RaiseEvent(eventName, eventArgs);
}
protected bool ShouldCallInvokeImplementation(Invocation invocation)
{
/* ^ */ var _typeInfo = this.MockedTypes.PrimaryType.GetTypeInfo(); /* [email protected] ^ */
// Only transparent mocks of classes can have their implemenation invoked
if (/* ^ */ MockStyle == MockStyle.Transparent && !_typeInfo.IsInterface /* [email protected] ^ */)
{
// Events can go through because invoking them is different than their binding
// (and because that is kind of how I think it should work...but technically invoking them maybe shouldn't in a transparent mock.)
// The implementation should only be invoked if no expectations
// have been set for this method
if (invocation.IsEventAccessor || !MockFactory.HasExpectationFor(invocation))
{
// As classes and interfaces can be combined into a single mock, we have
// to be sure that the target method actually belongs to a class
if (
MockedTypes.PrimaryType == invocation.Method.DeclaringType
//|| MockedTypes.PrimaryType.IsSubclassOf(invocationForMock.Method.DeclaringType)
|| invocation.Method.DeclaringType.IsAssignableFrom(MockedTypes.PrimaryType)
//invocationForMock.Method.DeclaringType.IsInterface
)
{
return true;
}
}
}
return false;
}
/// <summary>
/// Invokes this object.
/// </summary>
/// <param name="invocation">The invocation.</param>
void IAction.Invoke(Invocation invocation)
{
if (invocation == null)
throw new ArgumentNullException("invocation");
invocation.Result = evaluate();
}
/// <summary>
/// Performs the specified invocation on the corresponding expectation if a match was found.
/// </summary>
/// <param name="invocation">The invocation to match.</param>
public override bool Perform(Invocation invocation)
{
//loop through all active expectations looking for a match
foreach (var expectation in this)
{
if (expectation.Matches(invocation)) //expectation.IsValid &&
{
return expectation.Perform(invocation);
}
}
//loop through through all inactive expectations looking for a match
foreach (var expectation in this)
{
if(expectation.MatchesIgnoringIsActive(invocation))
{
//var ordered = expectation as OrderedExpectationList;
//if (ordered != null)
//{
// ordered.PerformAgainstInactive(invocation);
// return false;
//}
var buildable = expectation as BuildableExpectation;
if (buildable != null)
{
buildable.IncreaseCallCount();
return false;
}
}
}
return false;
}
void IAction.Invoke(Invocation invocation)
{
if(invocation.IsPropertyGetAccessor)
{
using(new PropertyStorageMarker())
{
invocation.InvokeOn(_mockObject);
}
}
}
public void Intercept(IInvocation invocation)
{
if(InvocationRecorder.Recording)
{
InvocationRecorder.Current.Invocation = new Invocation(invocation.Method, invocation.Arguments);
return;
}
// Check for calls to basic NMock infrastructure
if (MockObjectMethods.ContainsKey(invocation.Method))
{
try
{
invocation.ReturnValue = invocation.Method.Invoke(this, invocation.Arguments);
}
catch (TargetInvocationException tie)
{
#if !SILVERLIGHT
// replace stack trace with original stack trace
FieldInfo remoteStackTraceString = typeof (Exception).GetField("_remoteStackTraceString", BindingFlags.Instance | BindingFlags.NonPublic);
remoteStackTraceString.SetValue(tie.InnerException, tie.InnerException.StackTrace + Environment.NewLine);
throw tie.InnerException;
#else
throw;
#endif
}
return;
}
// Ok, this call is targeting a member of the mocked class
object invocationTarget;
if (MockedTypes.PrimaryType == invocation.Method.DeclaringType && invocation.InvocationTarget != null)
{
invocationTarget = invocation.InvocationTarget;
}
else
{
invocationTarget = invocation.Proxy;
}
var invocationForMock = new Invocation(invocationTarget, invocation.Method, invocation.Arguments);
if (ShouldCallInvokeImplementation(invocationForMock))
{
invocation.Proceed();
if (!MockFactory.HasExpectationFor(invocationForMock))
return;
}
invocation.ReturnValue = ProcessCallAgainstExpectations(invocationForMock);
}
/// <summary>
/// Invokes this object. Sets the value of the parameter with the specified name of the invocation.
/// </summary>
/// <param name="invocation">The invocation.</param>
void IAction.Invoke(Invocation invocation)
{
ParameterInfo[] paramsInfo = invocation.MethodParameters;
for (int i = 0; i < paramsInfo.Length; i++)
{
if (paramsInfo[i].Name == name)
{
invocation.Parameters[i] = value;
return;
}
}
throw new ArgumentException("no such parameter", name);
}
protected object ProcessCallAgainstExpectations(Invocation invocation)
{
if (PropertyStorageMarker.UsePropertyStorage)
{
var interceptedValues = ((IMockObject)invocation.Receiver).InterceptedValues;
if (interceptedValues.ContainsKey(invocation.MethodSignatureForSetter))
{
return interceptedValues[invocation.MethodSignatureForSetter];
}
}
((IInvokable)this).Invoke(invocation);
if (invocation.IsThrowing)
{
throw invocation.Exception;
}
if (invocation.Result == Missing.Value && invocation.Method.ReturnType != typeof(void))
{
//var exception = new UnexpectedInvocationException(invocation,"No matching expectation was found for this invocation. " + invocation);
//MockFactory.OrderingException = exception;
//throw exception;
}
if (invocation.IsPropertySetAccessor)
{
var interceptedValues = ((IMockObject)invocation.Receiver).InterceptedValues;
if (interceptedValues.ContainsKey(invocation.MethodSignature))
interceptedValues[invocation.MethodSignature] = invocation.SetterResult;
else
interceptedValues.Add(invocation.MethodSignature, invocation.SetterResult);
}
return invocation.Result;
}
/// <summary>
/// Invokes this object.
/// </summary>
/// <param name="invocation">The invocation.</param>
void IAction.Invoke(Invocation invocation)
{
Type returnType = invocation.MethodReturnType;
/* ^ */ var _returnType = returnType.GetTypeInfo(); /* [email protected] ^ */
if (returnType == typeof(void))
{
return; // sanity check
}
lock (_lock)
{
if (_results.ContainsKey(returnType))
{
var action = _results[returnType];
action.Invoke(invocation);
}
else if (returnType.IsArray)
{
invocation.Result = NewEmptyArray(returnType);
}
else if (/* ^ */ _returnType.IsValueType /* [email protected] ^ */)
{
invocation.Result = Activator.CreateInstance(returnType);
}
else if (defaultResults.ContainsKey(returnType))
{
var action = defaultResults[returnType];
action.Invoke(invocation);
}
else
{
throw new InvalidOperationException("No action registered for return type " + returnType);
}
}
}
public override bool ContainsOrderedExpectationFor(Invocation invocation)
{
for (int i = current; i < Count; i++)
{
if (this[i] as IExpectationList != null)
{
return ((IExpectationList)this[i]).ContainsOrderedExpectationFor(invocation);
}
if (this[i].Matches(invocation))
{
return true;
}
}
return false;
}
public override bool Perform(Invocation invocation)
{
if (Count == 0)
return false;
//you would think it would be "if (CurrentExpectation.HasBeenMet)" but "atleast" matchers will have been met
//when they can consume more, so increment after a match check
//if (CurrentExpectation.HasBeenMet)
if (!CurrentExpectation.Matches(invocation) && !invocation.MockObject.IgnoreUnexpectedInvocations)
current++;
//now if this one doesn't match then this is unexpected
if (CurrentExpectation.Matches(invocation))
{
var result = CurrentExpectation.Perform(invocation);
//this helps for adding breakpoints and troubleshooting when returning false
if (result)
return true;
else
return false;
}
return false;
}
public override bool MatchesIgnoringIsActive(Invocation invocation)
{
if (CurrentExpectation == null)
return false;
if (Count == 0)
return false;
return (CurrentExpectation.MatchesIgnoringIsActive(invocation)
|| (CurrentExpectation.HasBeenMet
&& NextExpectationMatchesIgnoringIsActive(invocation))); //look ahead at the next if the current is an "atleast" matcher
}
/// <summary>
/// Invokes this object. Sets the parameter at the specified index of the invocation to the specified value.
/// </summary>
/// <param name="invocation">The invocation.</param>
void IAction.Invoke(Invocation invocation)
{
invocation.Parameters[index] = value;
}
/// <summary>
/// Invokes this object.
/// </summary>
/// <param name="invocation">The invocation.</param>
void IAction.Invoke(Invocation invocation)
{
collectedArgumentValue = invocation.Parameters[argumentIndex];
}
private bool ExtraMatchersMatch(Invocation invocation)
{
return _extraMatchers.All(matcher => matcher.Matches(invocation));
}
/// <summary>
/// Invokes this object.
/// </summary>
/// <param name="invocation">The invocation.</param>
void IAction.Invoke(Invocation invocation)
{
if (handler != null)
handler.Invoke(invocation.Parameters);
}
/// <summary>
/// Checks whether stored expectations matches the specified invocation.
/// </summary>
/// <param name="invocation">The invocation to check.</param>
/// <returns>Returns whether one of the stored expectations has met the specified invocation.</returns>
public override bool Matches(Invocation invocation)
{
var matchFound = this.Any(expectation => expectation.Matches(invocation));
return matchFound;
}
public void ProcessEventHandlers(Invocation invocation)
{
var handler = invocation.Parameters[0] as Delegate;
var name = invocation.MethodName;
if (name.StartsWith(Constants.ADD))
{
AddEventHandler(name.Substring(Constants.ADD.Length), handler);
}
else if (name.StartsWith(Constants.REMOVE))
{
RemoveEventHandler(name.Substring(Constants.REMOVE.Length), handler);
}
}
private bool MatchesArgumentValues(Invocation invocation)
{
ParameterInfo[] paramsInfo = invocation.MethodParameters;
for (int i = 0; i < invocation.Parameters.Count; i++)
{
object value = paramsInfo[i].IsOut ? OutParameter : invocation.Parameters[i];
if (!valueMatchers[i].Matches(value))
{
return false;
}
}
return true;
}
private bool MatchesArguments(Invocation invocation)
{
return invocation.Parameters.Count == valueMatchers.Count
&& MatchesArgumentValues(invocation);
}
public override bool MatchesIgnoringIsActive(Invocation invocation)
{
return this.Any(e => e.MatchesIgnoringIsActive(invocation));
}
private bool NextExpectationMatches(Invocation invocation)
{
if (HasNextExpectation)
{
//this helps skip over empty ordered expectations
if (NextExpectation.IsValid && !NextExpectation.IsActive && NextExpectation.HasBeenMet)
{
current++;
return NextExpectationMatches(invocation);
}
return NextExpectation.Matches(invocation);
}
return false;
}
private bool NextExpectationMatchesIgnoringIsActive(Invocation invocation)
{
return HasNextExpectation && NextExpectation.MatchesIgnoringIsActive(invocation);
}
private static void ProcessEventHandlers(Invocation invocation)
{
if (invocation.IsEventAccessor)
{
var mockObject = invocation.Receiver as IMockObject;
if (mockObject != null)
{
mockObject.ProcessEventHandlers(invocation);
}
}
}
void IAction.Invoke(Invocation invocation)
{
invocation.SetterResult = invocation.Arguments[invocation.Arguments.Length - 1];
}
public override bool ContainsOrderedExpectationFor(Invocation invocation)
{
foreach (var expectation in this)
{
if (expectation as IExpectationList != null)
{
return ((IExpectationList)expectation).ContainsOrderedExpectationFor(invocation);
}
if (expectation.Matches(invocation))
{
return true;
}
}
return false;
}
/// <summary>
/// Gets the default result for an invocation.
/// </summary>
/// <param name="invocation">The invocation.</param>
/// <returns>The default value to return as result of the invocation.
/// <see cref="Missing.Value"/> if no default value was provided.</returns>
private object GetStubResult(Invocation invocation)
{
Type returnType = invocation.MethodReturnType;
/* ^ */ var _returnTypeInfo = returnType.GetTypeInfo(); /* [email protected] ^ */
// void method
if (returnType == typeof(void))
{
return Missing.Value;
}
// see if developer provides a return value
object returnValue = MockFactory.ResolveType(invocation.Receiver, returnType);
if (returnValue != Missing.Value)
{
return returnValue;
}
if (/* ^ */ _returnTypeInfo.IsValueType /* [email protected] ^ */)
{
// use default contructor for value types
return Activator.CreateInstance(returnType);
}
if (returnType == typeof(string))
{
// string empty for strings
return string.Empty;
}
if (/* ^ */ _returnTypeInfo.IsClass && _returnTypeInfo.ImplementedInterfaces.Any(t => t == typeof(IEnumerable)) /* [email protected] ^ */)
{
// for enumerables (List, Dictionary) we create an empty object
return Activator.CreateInstance(returnType);
}
if (/* ^ */ _returnTypeInfo.IsSealed /* [email protected] ^ */)
{
// null for sealed classes
return null;
}
// a mock for interfaces and all cases no covered above
return MockFactory.NewMock(returnType, GetMemberName(invocation), MockFactory.GetDependencyMockStyle(invocation.Receiver, returnType) ?? MockStyle);
}
/// <summary>
/// Invokes this object. Sets the exception the invocation will throw.
/// </summary>
/// <param name="invocation">The invocation.</param>
void IAction.Invoke(Invocation invocation)
{
invocation.Exception = exception;
}
/// <summary>
/// Invokes this object by signaling the event.
/// </summary>
/// <param name="invocation">The invocation.</param>
void IAction.Invoke(Invocation invocation)
{
signal.Set();
}
void IInvokable.Invoke(Invocation invocation)
{
switch (MockStyle)
{
case MockStyle.Default:
case MockStyle.Transparent:
try
{
//call up the the factory to route this invocation
MockFactory.Dispatch(invocation);
}
catch (UnexpectedInvocationException)
{
if (IgnoreUnexpectedInvocations)
{
//clear the factory expectation
MockFactory.ClearException();
}
else
{
throw;
}
}
break;
case MockStyle.Stub:
{
if (MockFactory.HasExpectationForIgnoringIsActive(invocation))
{
goto case MockStyle.Default;
}
// check whether we already have a value for this call
object result;
if (invocation.IsPropertySetAccessor)// remember values set in a property setter
{
if (assignedPropertyResults.ContainsKey(invocation.MethodName)) //TODO: stubs don't support indexers! need Item[int] or Item[string,int]
{
assignedPropertyResults[invocation.MethodName] = invocation.Parameters[0];
}
else
{
assignedPropertyResults.Add(invocation.MethodName, invocation.Parameters[0]);
}
return;
}
else if (invocation.IsEventAccessor)
{
ProcessEventHandlers(invocation);
return;
}
else if (invocation.IsPropertyGetAccessor && assignedPropertyResults.ContainsKey(invocation.MethodName))
{
result = assignedPropertyResults[invocation.MethodName];
}
else if (rememberedMethodResults.ContainsKey(invocation.Method))
{
result = rememberedMethodResults[invocation.Method];
}
else
{
result = GetStubResult(invocation);
rememberedMethodResults.Add(invocation.Method, result);
}
if (result != Missing.Value)
{
invocation.Result = result;
}
break;
}
case MockStyle.RecursiveStub:
{
if (MockFactory.HasExpectationFor(invocation))
{
goto case MockStyle.Default;
}
object result;
if (rememberedResults.ContainsKey(invocation.MethodName))
{
result = rememberedResults[invocation.MethodName];
}
else
{
result = GetStubResult(invocation);
rememberedResults.Add(invocation.MethodName, result);
}
if (result != Missing.Value)
{
invocation.Result = result;
}
break;
}
}
}
