Re: [edk2-devel] Problems mocking UEFI Protocol in gMock

["CrossedCarpet" <crossedcarpet@hotmail.com>]

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Greetings,
A week long collaboration between me and Gpt yielded this functioning mock of a sample UEFI Protocol:

struct SampleProtocol {
INTN    (*GetVersion)(
);
};

struct MockSampleProtocol : public SampleProtocol {
static MockSampleProtocol    *instance;

MockSampleProtocol (
)
{
// Assign the instance pointer
instance = this;

// Point the function pointer in TestStruct to the static method
GetVersion = StaticGetVersion;
}

// Define a static method that forwards the call to the mock method
static INTN
StaticGetVersion (
)
{
return instance->MockGetVersion ();
}

MOCK_METHOD (INTN, MockGetVersion, ());
};

MockSampleProtocol  *MockSampleProtocol::instance = nullptr;

TEST (SampleProtocolTest, SampleTest) {
MockSampleProtocol  mockSampleProtocol;
SampleProtocol      *sampleProtocol;

sampleProtocol = &mockSampleProtocol;
EXPECT_CALL (mockSampleProtocol, MockGetVersion)
.WillOnce (Return (42));

ASSERT_EQ (42, sampleProtocol->GetVersion ());
}

In your opinion, is this an appropriate approach?
I suppose that mocking a UEFI protocol is something common, so I wonder if this w ould be worth documenting?

Best Regards,
Me & Gpt


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