public void GetReturnValueAndClearRunningMethod_Returns_Correct_Default_Return_Value()
{
ShimLibrary.SetRunningMethod(_currentReferenceGuid.ToString());
var result = ShimLibrary.GetReturnValueAndClearRunningMethod <int>();
Assert.AreEqual(0, result);
}
public void ClearRunningMethod_Sets_Running_Method_Null()
{
ShimLibrary.SetRunningMethod(_currentReferenceGuid.ToString());
try
{
ShimLibrary.AddCallResultToShim(new object[] { });
}
catch (Exception)
{
Assert.Fail("Method should now be running.");
}
ShimLibrary.ClearRunningMethod();
try
{
ShimLibrary.AddCallResultToShim(new object[] { });
Assert.Fail("Expected NullReferenceException - no method should be running.");
}
catch (NullReferenceException)
{
// do nothing
}
}
public void SetRunningMethod_Sets_Method_From_Guid()
{
// At first, a call result should except, as no method is running
try
{
ShimLibrary.AddCallResultToShim(new object[] { });
Assert.Fail("Expected NullReferenceException - no method should be running.");
}
catch (NullReferenceException)
{
// do nothing
}
ShimLibrary.SetRunningMethod(_currentReferenceGuid.ToString());
// Now, it should pass, because a method is running
try
{
ShimLibrary.AddCallResultToShim(new object[] { });
}
catch (Exception)
{
Assert.Fail("Method should now be running.");
}
}
public void AddCallResultToShim_Adds_Call_Result_With_Parameters()
{
Assert.IsFalse(_currentShimmedMethod.CallResults.Any());
ShimLibrary.SetRunningMethod(_currentReferenceGuid.ToString());
ShimLibrary.AddCallResultToShim(new object[] { 5 });
Assert.AreEqual(1, _currentShimmedMethod.CallResults.Count);
Assert.AreEqual(5, _currentShimmedMethod.CallResults.First().Parameters[0]);
}
public void GetReturnValueAndClearRunningMethod_Returns_Correct_Custom_Return_Value()
{
_currentShimmedMethod.ReturnValue = 6;
ShimLibrary.SetRunningMethod(_currentReferenceGuid.ToString());
var result = ShimLibrary.GetReturnValueAndClearRunningMethod <int>();
Assert.AreEqual(6, result);
}
public void GetReturnValueAndClearRunningMethod_Returns_Correct_Default_Value_for_Constructor()
{
ShimLibrary.ClearRunningMethod();
var constructorInfo = typeof(InstanceMethodsTestClass).GetConstructor(Type.EmptyTypes);
_currentShimmedMethod = new ShimmedConstructor <InstanceMethodsTestClass>(constructorInfo);
_currentReferenceGuid = ShimLibrary.Add(_currentShimmedMethod);
ShimLibrary.SetRunningMethod(_currentReferenceGuid.ToString());
var result = ShimLibrary.GetReturnValueAndClearRunningMethod <InstanceMethodsTestClass>();
Assert.IsNotNull(result); // would be null if there was no parameterless constructor
}
public void GetReturnValueAndClearRunningMethod_Execpts_When_Running_Method_Has_Wrong_Return_Type()
{
ShimLibrary.SetRunningMethod(_currentReferenceGuid.ToString());
try
{
ShimLibrary.GetReturnValueAndClearRunningMethod <string>();
Assert.Fail("Expected InvalidOperationException - method type doesn't match generic type.");
}
catch (InvalidOperationException e)
{
Assert.AreEqual(ShimLibrary.CannotGetReturnValueNonMatchingTypeError, e.Message);
}
}
public void GetReturnValueAndClearRunningMethod_Returns_Correct_Custom_Value_for_Constructor()
{
var a = new InstanceMethodsTestClass();
ShimLibrary.ClearRunningMethod();
var constructorInfo = typeof(InstanceMethodsTestClass).GetConstructor(Type.EmptyTypes);
_currentShimmedMethod = new ShimmedConstructor <InstanceMethodsTestClass>(constructorInfo);
_currentReferenceGuid = ShimLibrary.Add(_currentShimmedMethod);
ShimLibrary.SetRunningMethod(_currentReferenceGuid.ToString());
_currentShimmedMethod.ReturnValue = a;
var result = ShimLibrary.GetReturnValueAndClearRunningMethod <InstanceMethodsTestClass>();
Assert.AreEqual(a.InstanceGuid, result.InstanceGuid);
Assert.AreEqual(a, result);
}
public void GetReturnValueAndClearRunningMethod_Execpts_When_Running_Method_Has_Void_Return_Type()
{
// setup a void return type method to run
ShimLibrary.ClearRunningMethod();
var methodInfo = typeof(SharedTestClasses.StaticMethodsTestClass).GetMethod("EmptyMethod");
_currentShimmedMethod = new ShimmedMethod(methodInfo);
_currentReferenceGuid = ShimLibrary.Add(_currentShimmedMethod);
ShimLibrary.SetRunningMethod(_currentReferenceGuid.ToString());
try
{
ShimLibrary.GetReturnValueAndClearRunningMethod <int>();
Assert.Fail("Expected InvalidOperationException - running method is of type void.");
}
catch (InvalidOperationException e)
{
Assert.AreEqual(ShimLibrary.CannotGetReturnValueNonMatchingTypeError, e.Message);
}
}