[RFC PATCH v2 15/16] apps: lc-compliance: Add multi-stream tests

[Paul Elder]

On Tue, Jan 14, 2025 at 06:23:00PM +0000, Barnabás Pőcze wrote:
> Rename the `SingleStream` test to `SimpleCapture`, and extend it
> to support using multiple roles. And instantiate another test suite
> from the `SimpleCapture` test that tests multiple streams in one
> capture session.
> 
> Co-developed-by: Jacopo Mondi <jacopo.mondi at ideasonboard.com>
> Signed-off-by: Jacopo Mondi <jacopo.mondi at ideasonboard.com>
> Signed-off-by: Barnabás Pőcze <pobrn at protonmail.com>

Reviewed-by: Paul Elder <paul.elder at ideasonboard.com>

> ---
>  src/apps/lc-compliance/tests/capture_test.cpp | 85 +++++++++++--------
>  1 file changed, 48 insertions(+), 37 deletions(-)
> 
> diff --git a/src/apps/lc-compliance/tests/capture_test.cpp b/src/apps/lc-compliance/tests/capture_test.cpp
> index 147e17019..db1d52fc9 100644
> --- a/src/apps/lc-compliance/tests/capture_test.cpp
> +++ b/src/apps/lc-compliance/tests/capture_test.cpp
> @@ -8,7 +8,7 @@
>  
>  #include "capture.h"
>  
> -#include <iostream>
> +#include <sstream>
>  
>  #include <gtest/gtest.h>
>  
> @@ -18,19 +18,10 @@ namespace {
>  
>  using namespace libcamera;
>  
> -const int NUMREQUESTS[] = { 1, 2, 3, 5, 8, 13, 21, 34, 55, 89 };
> -
> -const StreamRole ROLES[] = {
> -	StreamRole::Raw,
> -	StreamRole::StillCapture,
> -	StreamRole::VideoRecording,
> -	StreamRole::Viewfinder
> -};
> -
> -class SingleStream : public testing::TestWithParam<std::tuple<StreamRole, int>>
> +class SimpleCapture : public testing::TestWithParam<std::tuple<std::vector<StreamRole>, int>>
>  {
>  public:
> -	static std::string nameParameters(const testing::TestParamInfo<SingleStream::ParamType> &info);
> +	static std::string nameParameters(const testing::TestParamInfo<SimpleCapture::ParamType> &info);
>  
>  protected:
>  	void SetUp() override;
> @@ -43,7 +34,7 @@ protected:
>   * We use gtest's SetUp() and TearDown() instead of constructor and destructor
>   * in order to be able to assert on them.
>   */
> -void SingleStream::SetUp()
> +void SimpleCapture::SetUp()
>  {
>  	Environment *env = Environment::get();
>  
> @@ -52,7 +43,7 @@ void SingleStream::SetUp()
>  	ASSERT_EQ(camera_->acquire(), 0);
>  }
>  
> -void SingleStream::TearDown()
> +void SimpleCapture::TearDown()
>  {
>  	if (!camera_)
>  		return;
> @@ -61,19 +52,17 @@ void SingleStream::TearDown()
>  	camera_.reset();
>  }
>  
> -std::string SingleStream::nameParameters(const testing::TestParamInfo<SingleStream::ParamType> &info)
> +std::string SimpleCapture::nameParameters(const testing::TestParamInfo<SimpleCapture::ParamType> &info)
>  {
> -	std::map<StreamRole, std::string> rolesMap = {
> -		{ StreamRole::Raw, "Raw" },
> -		{ StreamRole::StillCapture, "StillCapture" },
> -		{ StreamRole::VideoRecording, "VideoRecording" },
> -		{ StreamRole::Viewfinder, "Viewfinder" }
> -	};
> +	const auto &[roles, numRequests] = info.param;
> +	std::ostringstream ss;
>  
> -	std::string roleName = rolesMap[std::get<0>(info.param)];
> -	std::string numRequestsName = std::to_string(std::get<1>(info.param));
> +	for (StreamRole r : roles)
> +		ss << r << '_';
>  
> -	return roleName + "_" + numRequestsName;
> +	ss << '_' << numRequests;
> +
> +	return std::move(ss).str();
>  }
>  
>  /*
> @@ -83,13 +72,13 @@ std::string SingleStream::nameParameters(const testing::TestParamInfo<SingleStre
>   * failure is a camera that completes less requests than the number of requests
>   * queued.
>   */
> -TEST_P(SingleStream, Capture)
> +TEST_P(SimpleCapture, Capture)
>  {
> -	auto [role, numRequests] = GetParam();
> +	const auto &[roles, numRequests] = GetParam();
>  
>  	Capture capture(camera_);
>  
> -	capture.configure(std::array{ role });
> +	capture.configure(roles);
>  
>  	capture.run(numRequests, numRequests);
>  }
> @@ -101,14 +90,14 @@ TEST_P(SingleStream, Capture)
>   * a camera that does not clean up correctly in its error path but is only
>   * tested by single-capture applications.
>   */
> -TEST_P(SingleStream, CaptureStartStop)
> +TEST_P(SimpleCapture, CaptureStartStop)
>  {
> -	auto [role, numRequests] = GetParam();
> +	const auto &[roles, numRequests] = GetParam();
>  	unsigned int numRepeats = 3;
>  
>  	Capture capture(camera_);
>  
> -	capture.configure(std::array{ role });
> +	capture.configure(roles);
>  
>  	for (unsigned int starts = 0; starts < numRepeats; starts++)
>  		capture.run(numRequests, numRequests);
> @@ -121,21 +110,43 @@ TEST_P(SingleStream, CaptureStartStop)
>   * is a camera that does not handle cancelation of buffers coming back from the
>   * video device while stopping.
>   */
> -TEST_P(SingleStream, UnbalancedStop)
> +TEST_P(SimpleCapture, UnbalancedStop)
>  {
> -	auto [role, numRequests] = GetParam();
> +	const auto &[roles, numRequests] = GetParam();
>  
>  	Capture capture(camera_);
>  
> -	capture.configure(std::array{ role });
> +	capture.configure(roles);
>  
>  	capture.run(numRequests);
>  }
>  
> -INSTANTIATE_TEST_SUITE_P(CaptureTests,
> -			 SingleStream,
> -			 testing::Combine(testing::ValuesIn(ROLES),
> +const int NUMREQUESTS[] = { 1, 2, 3, 5, 8, 13, 21, 34, 55, 89 };
> +
> +const std::vector<StreamRole> SINGLEROLES[] = {
> +	{ StreamRole::Raw, },
> +	{ StreamRole::StillCapture, },
> +	{ StreamRole::VideoRecording, },
> +	{ StreamRole::Viewfinder, },
> +};
> +
> +const std::vector<StreamRole> MULTIROLES[] = {
> +	{ StreamRole::Raw, StreamRole::StillCapture },
> +	{ StreamRole::Raw, StreamRole::VideoRecording },
> +	{ StreamRole::StillCapture, StreamRole::VideoRecording },
> +	{ StreamRole::VideoRecording, StreamRole::VideoRecording },
> +};
> +
> +INSTANTIATE_TEST_SUITE_P(SingleStream,
> +			 SimpleCapture,
> +			 testing::Combine(testing::ValuesIn(SINGLEROLES),
> +					  testing::ValuesIn(NUMREQUESTS)),
> +			 SimpleCapture::nameParameters);
> +
> +INSTANTIATE_TEST_SUITE_P(MultiStream,
> +			 SimpleCapture,
> +			 testing::Combine(testing::ValuesIn(MULTIROLES),
>  					  testing::ValuesIn(NUMREQUESTS)),
> -			 SingleStream::nameParameters);
> +			 SimpleCapture::nameParameters);
>  
>  } /* namespace */
> -- 
> 2.48.0
> 
>