Access Violation when creating a stub in a different method about delphi-mocks HOT 2 CLOSED

Hi,

I suspect this is the problem

procedure TestIFoo.SetupStub;
begin
  FIFoo.Bar := TStub<IBar>.Create;
end;

TStub is record which holds a reference to the interface, but your stub is going out of scope immediately because you don't hold a reference to the TStub anywhere. Declare a field on your test class for the Stub to hold the stub

TestIFoo = class(TTestCase)
private
  FBarSub : TStub<IBar>;
...
procedure TestIFoo.SetupStub;
begin
  FBarStub := TStub<IBar>.Create;
  FIFoo.Bar := FBarStub;
end;

from delphi-mocks.

Well... I suppose you're right. I mistakenly thought that holding a reference to the Interface was enough to keep it alive, but I'm learning now that this is not the case...

I'm actually testing a class that depends on a large set of interfaces, so I was trying to create Stubs for all in a method and call that code in a set of my tests, you know basic DRY.

Now I'm wondering if keeping this large list of references in the test could cause more problems that the benefit of doing this, but I'm still don't want to copy/paste the code to create all the stubs to every method of this large Test Case class.

from delphi-mocks.