public PropertySetterConfiguration(
ParsedCallExpression parsedCallExpression,
Func <ParsedCallExpression, IVoidArgumentValidationConfiguration> voidArgumentValidationConfigurationFactory)
{
this.parsedSetterExpression = parsedCallExpression;
this.voidArgumentValidationConfigurationFactory = voidArgumentValidationConfigurationFactory;
}
public ICallMatcher CreateCallMatcher(ParsedCallExpression callSpecification)
{
return(new ExpressionCallMatcher(
callSpecification,
this.serviceLocator.Resolve <ExpressionArgumentConstraintFactory>(),
this.serviceLocator.Resolve <MethodInfoManager>()));
}
private static string GetExpressionDescription(ParsedCallExpression parsedCallExpression)
{
var writer = ServiceLocator.Resolve <StringBuilderOutputWriter.Factory>().Invoke();
var constraintFactory = ServiceLocator.Resolve <ExpressionArgumentConstraintFactory>();
CallConstraintDescriber.DescribeCallOn(writer, parsedCallExpression.CalledMethod, parsedCallExpression.ArgumentsExpressions.Select(constraintFactory.GetArgumentConstraint));
return(writer.Builder.ToString());
}
private static string GetExpressionDescription(ParsedCallExpression parsedCallExpression)
{
var matcher = new ExpressionCallMatcher(
parsedCallExpression,
ServiceLocator.Current.Resolve <ExpressionArgumentConstraintFactory>(),
ServiceLocator.Current.Resolve <MethodInfoManager>());
return(matcher.DescriptionOfMatchingCall);
}
public static ParsedCallExpression BuildSetterFromGetter <TValue>(
ParsedCallExpression parsedCallExpression)
{
var propertyName = GetPropertyName(parsedCallExpression);
if (propertyName is null)
{
var expressionDescription = GetExpressionDescription(parsedCallExpression);
throw new ArgumentException("Expression '" + expressionDescription +
"' must refer to a property or indexer getter, but doesn't.");
}
var parameterTypes = new Type[parsedCallExpression.ArgumentsExpressions.Length + 1];
for (int i = 0; i < parsedCallExpression.ArgumentsExpressions.Length; ++i)
{
parameterTypes[i] = parsedCallExpression.ArgumentsExpressions[i].ArgumentInformation.ParameterType;
}
parameterTypes[parsedCallExpression.ArgumentsExpressions.Length] = parsedCallExpression.CalledMethod.ReturnType;
// The DeclaringType may be null, so fall back to the faked object type.
// (It's unlikely to happen, though, and would require the client code to have passed a specially
// constructed expression to ACallToSet; perhaps a dynamically generated method created
// via lightweight code generation.)
var callTargetType = parsedCallExpression.CalledMethod.DeclaringType
?? Fake.GetFakeManager(parsedCallExpression.CallTarget).FakeObjectType;
var setPropertyName = "set_" + propertyName;
var indexerSetterInfo = callTargetType.GetMethod(setPropertyName, parameterTypes);
if (indexerSetterInfo is null)
{
if (parsedCallExpression.ArgumentsExpressions.Any())
{
var expressionDescription = GetExpressionDescription(parsedCallExpression);
throw new ArgumentException("Expression '" + expressionDescription +
"' refers to an indexed property that does not have a setter.");
}
throw new ArgumentException($"The property {propertyName} does not have a setter.");
}
var originalParameterInfos = indexerSetterInfo.GetParameters();
var newParsedSetterValueExpression = new ParsedArgumentExpression(
BuildArgumentThatMatchesAnything <TValue>(),
originalParameterInfos.Last());
var arguments = new ParsedArgumentExpression[originalParameterInfos.Length];
Array.Copy(parsedCallExpression.ArgumentsExpressions, arguments, originalParameterInfos.Length - 1);
arguments[originalParameterInfos.Length - 1] = newParsedSetterValueExpression;
return(new ParsedCallExpression(indexerSetterInfo, parsedCallExpression.CallTarget, arguments));
}
private static string GetPropertyName(ParsedCallExpression parsedCallExpression)
{
var calledMethod = parsedCallExpression.CalledMethod;
if (HasThis(calledMethod) && calledMethod.IsSpecialName)
{
var methodName = calledMethod.Name;
if (methodName.StartsWith("get_", StringComparison.Ordinal))
{
return(methodName.Substring(4));
}
}
return(null);
}
private static ParsedCallExpression BuildSetterFromGetter <TValue>(
ParsedCallExpression parsedCallExpression)
{
var propertyName = GetPropertyName(parsedCallExpression);
if (propertyName == null)
{
var expressionDescription = GetExpressionDescription(parsedCallExpression);
throw new ArgumentException("Expression '" + expressionDescription +
"' must refer to a property or indexer getter, but doesn't.");
}
var parsedArgumentExpressions = parsedCallExpression.ArgumentsExpressions ?? new ParsedArgumentExpression[0];
var parameterTypes = parsedArgumentExpressions
.Select(p => p.ArgumentInformation.ParameterType)
.Concat(new[] { parsedCallExpression.CalledMethod.ReturnType })
.ToArray();
var indexerSetterInfo = parsedCallExpression.CallTarget.GetType()
.GetMethod("set_" + propertyName, parameterTypes);
if (indexerSetterInfo == null)
{
if (parsedArgumentExpressions.Any())
{
var expressionDescription = GetExpressionDescription(parsedCallExpression);
throw new ArgumentException("Expression '" + expressionDescription +
"' refers to an indexed property that does not have a setter.");
}
throw new ArgumentException(
"The property '" + propertyName + "' does not have a setter.");
}
var originalParameterInfos = indexerSetterInfo.GetParameters();
var newParsedSetterValueExpression = new ParsedArgumentExpression(
BuildArgumentThatMatchesAnything <TValue>(),
originalParameterInfos.Last());
var arguments = parsedArgumentExpressions
.Take(originalParameterInfos.Length - 1)
.Concat(new[] { newParsedSetterValueExpression });
return(new ParsedCallExpression(indexerSetterInfo, parsedCallExpression.CallTarget, arguments));
}
private static string GetPropertyName(ParsedCallExpression parsedCallExpression)
{
var calledMethod = parsedCallExpression.CalledMethod;
if (HasThis(calledMethod) && calledMethod.IsSpecialName)
{
var methodName = calledMethod.Name;
if (methodName.StartsWith("get_", StringComparison.Ordinal))
{
return(methodName.Substring(4));
}
}
var expressionDescription = GetExpressionDescription(parsedCallExpression);
throw new ArgumentException(ExceptionMessages.IsNotAGetter(expressionDescription));
}
private static string GetPropertyName(ParsedCallExpression parsedCallExpression)
{
var calledMethod = parsedCallExpression.CalledMethod;
if (HasThis(calledMethod) && calledMethod.IsSpecialName)
{
var methodName = calledMethod.Name;
if (methodName.StartsWith("get_", StringComparison.Ordinal))
{
return(methodName.Substring(4));
}
}
var expressionDescription = GetExpressionDescription(parsedCallExpression);
throw new ArgumentException("Expression '" + expressionDescription +
"' must refer to a property or indexer getter, but doesn't.");
}
private ExpressionCallMatcher CreateMatcher(ParsedCallExpression callSpecification)
{
return(new ExpressionCallMatcher(callSpecification, this.constraintFactory, this.methodInfoManager));
}
private void AssertThatMemberCanBeIntercepted(ParsedCallExpression parsed)
{
this.interceptionAsserter.AssertThatMethodCanBeInterceptedOnInstance(
parsed.CalledMethod,
parsed.CallTarget);
}
private IVoidArgumentValidationConfiguration CreateVoidArgumentValidationConfiguration(FakeManager fake, ParsedCallExpression parsedCallExpression)
{
var rule = this.ruleFactory.Invoke(parsedCallExpression);
return(this.configurationFactory.CreateConfiguration(fake, rule));
}
private IVoidArgumentValidationConfiguration CreateArgumentValidationConfiguration(
ParsedCallExpression parsedSetter) =>
this.voidArgumentValidationConfigurationFactory(parsedSetter);
public ICallMatcher CreateCallMatcher(ParsedCallExpression callSpecification) => new ExpressionCallMatcher(
callSpecification,
this.expressionArgumentConstraintFactory,
this.methodInfoManager);
private void AssertThatMemberCanBeIntercepted(ParsedCallExpression parsedCall)
{
this.interceptionAsserter.AssertThatMethodCanBeInterceptedOnInstance(parsedCall.CalledMethod, this.manager.Object);
}