object IProxyFactory.GenerateProxy(ICallRouter callRouter, Type typeToProxy, Type[] additionalInterfaces, object[] constructorArguments)
{
// TODO:
// * new type MockCtorPlaceholder in elevated assy
// * generate new empty ctor that takes MockCtorPlaceholder in all mocked types
// * support ctor params. throw if foudn and not ForPartsOf. then ForPartsOf determines which ctor we use.
// * have a note about static ctors. because they are special, and do not support disposal, can't really mock them right.
// best for user to do mock/unmock of static ctors manually (i.e. move into StaticInit/StaticDispose and call directly from test code)
object proxy;
var substituteConfig = ElevatedSubstitutionContext.TryGetSubstituteConfig(callRouter);
if (typeToProxy.IsInterface || substituteConfig == null)
{
proxy = m_DefaultProxyFactory.GenerateProxy(callRouter, typeToProxy, additionalInterfaces, constructorArguments);
}
else if (typeToProxy == typeof(SubstituteStatic.Proxy))
{
if (additionalInterfaces != null && additionalInterfaces.Any())
{
throw new SubstituteException("Cannot substitute interfaces as static");
}
if (constructorArguments.Length != 1)
{
throw new SubstituteException("Unexpected use of SubstituteStatic.For");
}
// the type we want comes from SubstituteStatic.For as a single ctor arg
var actualType = (Type)constructorArguments[0];
proxy = CreateStaticProxy(actualType, callRouter);
}
else
{
// requests for additional interfaces on patched types cannot be done at runtime. elevated mocking can't,
// by definition, go through a runtime dynamic proxy generator that could add such things.
if (additionalInterfaces.Any())
{
throw new SubstituteException("Cannot add interfaces at runtime to patched types");
}
if (substituteConfig == SubstituteConfig.OverrideAllCalls)
{
// overriding all calls includes the ctor, so it makes no sense for the user to pass in ctor args
if (constructorArguments.Any())
{
throw new SubstituteException("Do not pass ctor args when substituting with elevated mocks (or did you mean to use ForPartsOf?)");
}
// but we use a ctor arg to select the special empty ctor that we patched in
constructorArguments = k_MockedCtorParams;
}
proxy = Activator.CreateInstance(typeToProxy, constructorArguments);
GetRouterField(typeToProxy).SetValue(proxy, callRouter);
}
return(proxy);
}
public static IDisposable AutoHook()
{
var hookedContext = SubstitutionContext.Current;
var thisContext = new ElevatedSubstitutionContext(hookedContext);
SubstitutionContext.Current = thisContext;
return(new DelegateDisposable(() =>
{
if (SubstitutionContext.Current != thisContext)
{
throw new SubstituteException("Unexpected hook in place of ours");
}
SubstitutionContext.Current = hookedContext;
}));
}
public static IDisposable AutoHook(string assemblyLocation)
{
var hookedContext = SubstitutionContext.Current;
var thisContext = new ElevatedSubstitutionContext(hookedContext);
SubstitutionContext.Current = thisContext;
// TODO: return a new IDisposable class that also contains the list of patch results, then in caller verify that against expected (don't want to go too wide)
var patchAllDependentAssemblies = ElevatedWeaver.PatchAllDependentAssemblies(
new NPath(assemblyLocation), PatchOptions.PatchTestAssembly).ToList();
return(new DelegateDisposable(() =>
{
if (SubstitutionContext.Current != thisContext)
{
throw new SubstituteException("Unexpected hook in place of ours");
}
SubstitutionContext.Current = hookedContext;
}));
}
