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test: Test V4L2BufferCache::isEmpty() member function

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Add a test for V4L2BufferCache::isEmpty() for various levels for cache
fullness.

Signed-off-by: Naushir Patuck <naush@raspberrypi.com>
Reviewed-by: Kieran Bingham <kieran.bingham@ideasonboard.com>
Reviewed-by: Laurent Pinchart <laurent.pinchart@ideasonboard.com>
Signed-off-by: Laurent Pinchart <laurent.pinchart@ideasonboard.com>
This commit is contained in:
Naushir Patuck 2022-03-25 09:09:03 +00:00 • committed by Laurent Pinchart
parent 5704856681
commit 7349031294
1 changed files with 36 additions and 0 deletions
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36
test/v4l2_videodevice/buffer_cache.cpp
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@ -126,6 +126,35 @@ public:
return TestPass;
}
int testIsEmpty(const std::vector<std::unique_ptr<FrameBuffer>> &buffers)
{
V4L2BufferCache cache(buffers.size());
if (!cache.isEmpty())
return TestFail;
for (auto const &buffer : buffers) {
FrameBuffer &b = *buffer.get();
cache.get(b);
}
if (cache.isEmpty())
return TestFail;
unsigned int i;
for (i = 0; i < buffers.size() - 1; i++)
cache.put(i);
if (cache.isEmpty())
return TestFail;
cache.put(i);
if (!cache.isEmpty())
return TestFail;
return TestPass;
}
int init() override
{
std::random_device rd;
@ -204,6 +233,13 @@ public:
if (testHot(&cacheHalf, buffers, numBuffers / 2) != TestPass)
return TestFail;
/*
* Test that the isEmpty function reports the correct result at
* various levels of cache fullness.
*/
if (testIsEmpty(buffers) != TestPass)
return TestFail;
return TestPass;
}