Mocking a method which returns a string iterator

[leefw]

Hi

I am new to GMock and am wondering what the correct approach is for
mocking a method with the following definition:

vector<string>::iterator MyClass::GetMyIterator();

I would like to do something similar to :

EXPECT_CALL(myMockedClass, GetMyIterator())
.Times(3)
.WillOnce(Return("string vector value 1"))
.WillOnce(Return("string vector value 2"))
.WillOnce(Return("string vector value 3"));

Can this be done at all?

Regards
Lee Francis wilhelmsen

[Piotr Gorak]

I think what you want to do is:

- create a vector of strings in your test code
- obtain this vector's iterator
- return this iterator from your mocked method (once)

Piotr

[leefw]

Thanks! However, I'm not really that familiar with GMock. Do you think
you can provide a very simple example?

I am guessing something like this (this probably doesn't compile). How
do you write this point 3 of your proposal?

vector<string> v;
v.push_back("1");
v.push_back("2");
v.push_back("3");
v::iterator iter;
iter.front();

class MyMock ...
MOCK_METHOD0(GetMyIterator, vector<string>::iterator());
...

EXPECT_CALL(myMockedClass, GetMyIterator())
.WillOnce(Return(iter));


How do you iterate over the values of the test vector?

I hope I'm making sence here... ;->

regards
Lee Francis

[Keith Ray]

you're close

class MyMock : public YourClass

{

public:
  MOCK_METHOD0(GetMyIterator, vector<string>::iterator());
etc...

};

TEST(YourTests, UsingMock)

{

vector<string> v;
v.push_back("1");
v.push_back("2");
v.push_back("3");
v::iterator iter;
iter.front();

MyMock myMockedClass;

EXPECT_CALL(myMockedClass, GetMyIterator())
   .WillOnce(Return(iter));

// code under test that uses myMockedClass

}

--
--
C. Keith Ray
 Web: http://industriallogic.com
 Twitter: @CKeithRay, @IndustrialLogic

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