[libcamera-devel] [PATCH v3 3/4] lc-compliance: Refactor using Googletest
Nícolas F. R. A. Prado
nfraprado at collabora.com
Fri May 14 15:16:51 CEST 2021
Refactor lc-compliance using Googletest as the test framework.
Signed-off-by: Nícolas F. R. A. Prado <nfraprado at collabora.com>
---
Changes in v3:
- Thanks to Niklas:
- Went back to static test registration, and created a Singleton Environment
class to store the camera global variable
- Added a nameParameters() function to give meaningful names to the test
parameters, removing the need to register each test suite for every role
src/lc-compliance/main.cpp | 88 ++++++++++------
src/lc-compliance/meson.build | 3 +
src/lc-compliance/simple_capture.cpp | 74 +++++---------
src/lc-compliance/simple_capture.h | 8 +-
src/lc-compliance/single_stream.cpp | 148 ++++++++++++++-------------
src/lc-compliance/tests.h | 19 +++-
6 files changed, 187 insertions(+), 153 deletions(-)
diff --git a/src/lc-compliance/main.cpp b/src/lc-compliance/main.cpp
index 54cee54aa978..d5ff93f514df 100644
--- a/src/lc-compliance/main.cpp
+++ b/src/lc-compliance/main.cpp
@@ -9,6 +9,8 @@
#include <iostream>
#include <string.h>
+#include <gtest/gtest.h>
+
#include <libcamera/libcamera.h>
#include "../cam/options.h"
@@ -21,21 +23,43 @@ enum {
OptHelp = 'h',
};
+bool Environment::create(std::shared_ptr<Camera> camera)
+{
+ if (instance_)
+ return false;
+
+ camera_ = camera;
+ instance_ = new Environment;
+ return true;
+}
+
+void Environment::destroy()
+{
+ if (!camera_)
+ return;
+
+ camera_->release();
+ camera_.reset();
+}
+
+Environment *Environment::instance()
+{
+ return instance_;
+}
+
class Harness
{
public:
Harness(const OptionsParser::Options &options);
~Harness();
- int exec();
+ int init();
private:
- int init();
void listCameras();
OptionsParser::Options options_;
std::unique_ptr<CameraManager> cm_;
- std::shared_ptr<Camera> camera_;
};
Harness::Harness(const OptionsParser::Options &options)
@@ -46,35 +70,15 @@ Harness::Harness(const OptionsParser::Options &options)
Harness::~Harness()
{
- if (camera_) {
- camera_->release();
- camera_.reset();
- }
+ Environment::instance()->destroy();
cm_->stop();
}
-int Harness::exec()
-{
- int ret = init();
- if (ret)
- return ret;
-
- std::vector<Results> results;
-
- results.push_back(testSingleStream(camera_));
-
- for (const Results &result : results) {
- ret = result.summary();
- if (ret)
- return ret;
- }
-
- return 0;
-}
-
int Harness::init()
{
+ std::shared_ptr<Camera> camera;
+
int ret = cm_->start();
if (ret) {
std::cout << "Failed to start camera manager: "
@@ -89,18 +93,20 @@ int Harness::init()
}
const std::string &cameraId = options_[OptCamera];
- camera_ = cm_->get(cameraId);
- if (!camera_) {
+ camera = cm_->get(cameraId);
+ if (!camera) {
std::cout << "Camera " << cameraId << " not found, available cameras:" << std::endl;
listCameras();
return -ENODEV;
}
- if (camera_->acquire()) {
+ if (camera->acquire()) {
std::cout << "Failed to acquire camera" << std::endl;
return -EINVAL;
}
+ Environment::create(camera);
+
std::cout << "Using camera " << cameraId << std::endl;
return 0;
@@ -133,6 +139,23 @@ static int parseOptions(int argc, char **argv, OptionsParser::Options *options)
return 0;
}
+/*
+ * Make asserts act like exceptions, otherwise they only fail (or skip) the
+ * current function. From gtest documentation:
+ * https://google.github.io/googletest/advanced.html#asserting-on-subroutines-with-an-exception
+ */
+class ThrowListener : public testing::EmptyTestEventListener {
+ void OnTestPartResult(const testing::TestPartResult& result) override {
+ if (result.type() == testing::TestPartResult::kFatalFailure
+ || result.type() == testing::TestPartResult::kSkip) {
+ throw testing::AssertionException(result);
+ }
+ }
+};
+
+Environment *Environment::instance_ = nullptr;
+std::shared_ptr<Camera> Environment::camera_ = nullptr;
+
int main(int argc, char **argv)
{
OptionsParser::Options options;
@@ -143,6 +166,11 @@ int main(int argc, char **argv)
return EXIT_FAILURE;
Harness harness(options);
+ ret = harness.init();
+ if (ret)
+ return ret;
- return harness.exec() ? EXIT_FAILURE : EXIT_SUCCESS;
+ ::testing::InitGoogleTest(&argc, argv);
+ testing::UnitTest::GetInstance()->listeners().Append(new ThrowListener);
+ return RUN_ALL_TESTS();
}
diff --git a/src/lc-compliance/meson.build b/src/lc-compliance/meson.build
index a2bfcceb1259..704bc18af3e1 100644
--- a/src/lc-compliance/meson.build
+++ b/src/lc-compliance/meson.build
@@ -18,10 +18,13 @@ lc_compliance_sources = files([
'single_stream.cpp',
])
+gtest_dep = dependency('gtest')
+
lc_compliance = executable('lc-compliance', lc_compliance_sources,
dependencies : [
libatomic,
libcamera_dep,
libevent,
+ gtest_dep,
],
install : true)
diff --git a/src/lc-compliance/simple_capture.cpp b/src/lc-compliance/simple_capture.cpp
index f90fe6d0f9aa..7731eb16f8c2 100644
--- a/src/lc-compliance/simple_capture.cpp
+++ b/src/lc-compliance/simple_capture.cpp
@@ -5,6 +5,8 @@
* simple_capture.cpp - Simple capture helper
*/
+#include <gtest/gtest.h>
+
#include "simple_capture.h"
using namespace libcamera;
@@ -20,38 +22,34 @@ SimpleCapture::~SimpleCapture()
stop();
}
-Results::Result SimpleCapture::configure(StreamRole role)
+void SimpleCapture::configure(StreamRole role)
{
config_ = camera_->generateConfiguration({ role });
- if (!config_)
- return { Results::Skip, "Role not supported by camera" };
+ if (!config_) {
+ std::cout << "Role not supported by camera" << std::endl;
+ GTEST_SKIP();
+ }
if (config_->validate() != CameraConfiguration::Valid) {
config_.reset();
- return { Results::Fail, "Configuration not valid" };
+ FAIL() << "Configuration not valid";
}
if (camera_->configure(config_.get())) {
config_.reset();
- return { Results::Fail, "Failed to configure camera" };
+ FAIL() << "Failed to configure camera";
}
-
- return { Results::Pass, "Configure camera" };
}
-Results::Result SimpleCapture::start()
+void SimpleCapture::start()
{
Stream *stream = config_->at(0).stream();
- if (allocator_->allocate(stream) < 0)
- return { Results::Fail, "Failed to allocate buffers" };
+ ASSERT_GE(allocator_->allocate(stream), 0) << "Failed to allocate buffers";
- if (camera_->start())
- return { Results::Fail, "Failed to start camera" };
+ ASSERT_TRUE(!camera_->start()) << "Failed to start camera";
camera_->requestCompleted.connect(this, &SimpleCapture::requestComplete);
-
- return { Results::Pass, "Started camera" };
}
void SimpleCapture::stop()
@@ -77,22 +75,19 @@ SimpleCaptureBalanced::SimpleCaptureBalanced(std::shared_ptr<Camera> camera)
{
}
-Results::Result SimpleCaptureBalanced::capture(unsigned int numRequests)
+void SimpleCaptureBalanced::capture(unsigned int numRequests)
{
- Results::Result ret = start();
- if (ret.first != Results::Pass)
- return ret;
+ start();
Stream *stream = config_->at(0).stream();
const std::vector<std::unique_ptr<FrameBuffer>> &buffers = allocator_->buffers(stream);
/* No point in testing less requests then the camera depth. */
if (buffers.size() > numRequests) {
- /* Cache buffers.size() before we destroy it in stop() */
- int buffers_size = buffers.size();
-
- return { Results::Skip, "Camera needs " + std::to_string(buffers_size)
- + " requests, can't test only " + std::to_string(numRequests) };
+ std::cout << "Camera needs " + std::to_string(buffers.size())
+ + " requests, can't test only "
+ + std::to_string(numRequests) << std::endl;
+ GTEST_SKIP();
}
queueCount_ = 0;
@@ -103,14 +98,11 @@ Results::Result SimpleCaptureBalanced::capture(unsigned int numRequests)
std::vector<std::unique_ptr<libcamera::Request>> requests;
for (const std::unique_ptr<FrameBuffer> &buffer : buffers) {
std::unique_ptr<Request> request = camera_->createRequest();
- if (!request)
- return { Results::Fail, "Can't create request" };
+ ASSERT_TRUE(request) << "Can't create request";
- if (request->addBuffer(stream, buffer.get()))
- return { Results::Fail, "Can't set buffer for request" };
+ ASSERT_FALSE(request->addBuffer(stream, buffer.get())) << "Can't set buffer for request";
- if (queueRequest(request.get()) < 0)
- return { Results::Fail, "Failed to queue request" };
+ ASSERT_GE(queueRequest(request.get()), 0) << "Failed to queue request";
requests.push_back(std::move(request));
}
@@ -121,12 +113,7 @@ Results::Result SimpleCaptureBalanced::capture(unsigned int numRequests)
stop();
delete loop_;
- if (captureCount_ != captureLimit_)
- return { Results::Fail, "Got " + std::to_string(captureCount_) +
- " request, wanted " + std::to_string(captureLimit_) };
-
- return { Results::Pass, "Balanced capture of " +
- std::to_string(numRequests) + " requests" };
+ ASSERT_EQ(captureCount_, captureLimit_);
}
int SimpleCaptureBalanced::queueRequest(Request *request)
@@ -158,11 +145,9 @@ SimpleCaptureUnbalanced::SimpleCaptureUnbalanced(std::shared_ptr<Camera> camera)
{
}
-Results::Result SimpleCaptureUnbalanced::capture(unsigned int numRequests)
+void SimpleCaptureUnbalanced::capture(unsigned int numRequests)
{
- Results::Result ret = start();
- if (ret.first != Results::Pass)
- return ret;
+ start();
Stream *stream = config_->at(0).stream();
const std::vector<std::unique_ptr<FrameBuffer>> &buffers = allocator_->buffers(stream);
@@ -174,14 +159,11 @@ Results::Result SimpleCaptureUnbalanced::capture(unsigned int numRequests)
std::vector<std::unique_ptr<libcamera::Request>> requests;
for (const std::unique_ptr<FrameBuffer> &buffer : buffers) {
std::unique_ptr<Request> request = camera_->createRequest();
- if (!request)
- return { Results::Fail, "Can't create request" };
+ ASSERT_TRUE(request) << "Can't create request";
- if (request->addBuffer(stream, buffer.get()))
- return { Results::Fail, "Can't set buffer for request" };
+ ASSERT_FALSE(request->addBuffer(stream, buffer.get())) << "Can't set buffer for request";
- if (camera_->queueRequest(request.get()) < 0)
- return { Results::Fail, "Failed to queue request" };
+ ASSERT_GE(camera_->queueRequest(request.get()), 0) << "Failed to queue request";
requests.push_back(std::move(request));
}
@@ -192,7 +174,7 @@ Results::Result SimpleCaptureUnbalanced::capture(unsigned int numRequests)
stop();
delete loop_;
- return { status ? Results::Fail : Results::Pass, "Unbalanced capture of " + std::to_string(numRequests) + " requests" };
+ ASSERT_FALSE(status);
}
void SimpleCaptureUnbalanced::requestComplete(Request *request)
diff --git a/src/lc-compliance/simple_capture.h b/src/lc-compliance/simple_capture.h
index d9de53fb63a3..0f8465083456 100644
--- a/src/lc-compliance/simple_capture.h
+++ b/src/lc-compliance/simple_capture.h
@@ -17,13 +17,13 @@
class SimpleCapture
{
public:
- Results::Result configure(libcamera::StreamRole role);
+ void configure(libcamera::StreamRole role);
protected:
SimpleCapture(std::shared_ptr<libcamera::Camera> camera);
virtual ~SimpleCapture();
- Results::Result start();
+ void start();
void stop();
virtual void requestComplete(libcamera::Request *request) = 0;
@@ -40,7 +40,7 @@ class SimpleCaptureBalanced : public SimpleCapture
public:
SimpleCaptureBalanced(std::shared_ptr<libcamera::Camera> camera);
- Results::Result capture(unsigned int numRequests);
+ void capture(unsigned int numRequests);
private:
int queueRequest(libcamera::Request *request);
@@ -56,7 +56,7 @@ class SimpleCaptureUnbalanced : public SimpleCapture
public:
SimpleCaptureUnbalanced(std::shared_ptr<libcamera::Camera> camera);
- Results::Result capture(unsigned int numRequests);
+ void capture(unsigned int numRequests);
private:
void requestComplete(libcamera::Request *request) override;
diff --git a/src/lc-compliance/single_stream.cpp b/src/lc-compliance/single_stream.cpp
index 8318b42f42d6..aad32ecd051e 100644
--- a/src/lc-compliance/single_stream.cpp
+++ b/src/lc-compliance/single_stream.cpp
@@ -7,91 +7,95 @@
#include <iostream>
+#include <gtest/gtest.h>
+
#include "simple_capture.h"
#include "tests.h"
using namespace libcamera;
-Results::Result testRequestBalance(std::shared_ptr<Camera> camera,
- StreamRole role, unsigned int startCycles,
- unsigned int numRequests)
+const std::vector<int> NUMREQUESTS = {1, 2, 3, 5, 8, 13, 21, 34, 55, 89};
+const std::vector<StreamRole> ROLES = {Raw, StillCapture, VideoRecording, Viewfinder};
+
+class FixedRequestsTest :
+ public testing::TestWithParam<std::tuple<StreamRole, int>> {
+};
+
+std::string nameParameters(const testing::TestParamInfo<FixedRequestsTest::ParamType>& info)
{
+ std::map<StreamRole, std::string> rolesMap = {{Raw, "raw"},
+ {StillCapture, "still"},
+ {VideoRecording, "video"},
+ {Viewfinder, "viewfinder"}};
+
+ std::string roleName = rolesMap[std::get<0>(info.param)];
+ std::string numRequestsName = std::to_string(std::get<1>(info.param));
+
+ return roleName + numRequestsName;
+}
+
+/*
+ * Test single capture cycles
+ *
+ * Makes sure the camera completes the exact number of requests queued. Example
+ * failure is a camera that needs N+M requests queued to complete N requests to
+ * the application.
+ */
+TEST_P(FixedRequestsTest, BalancedSingleCycle)
+{
+ auto [role, numRequests] = GetParam();
+ std::shared_ptr<Camera> camera = Environment::instance()->camera();
+
SimpleCaptureBalanced capture(camera);
- Results::Result ret = capture.configure(role);
- if (ret.first != Results::Pass)
- return ret;
+ capture.configure(role);
- for (unsigned int starts = 0; starts < startCycles; starts++) {
- ret = capture.capture(numRequests);
- if (ret.first != Results::Pass)
- return ret;
- }
+ capture.capture(numRequests);
+};
- return { Results::Pass, "Balanced capture of " +
- std::to_string(numRequests) + " requests with " +
- std::to_string(startCycles) + " start cycles" };
-}
+/*
+ * Test multiple start/stop cycles
+ *
+ * Makes sure the camera supports multiple start/stop cycles. Example failure is
+ * a camera that does not clean up correctly in its error path but is only
+ * tested by single-capture applications.
+ */
+TEST_P(FixedRequestsTest, BalancedMultiCycle)
+{
+ auto [role, numRequests] = GetParam();
+ std::shared_ptr<Camera> camera = Environment::instance()->camera();
+ unsigned int numRepeats = 3;
+
+ SimpleCaptureBalanced capture(camera);
-Results::Result testRequestUnbalance(std::shared_ptr<Camera> camera,
- StreamRole role, unsigned int numRequests)
+ capture.configure(role);
+
+ for (unsigned int starts = 0; starts < numRepeats; starts++)
+ capture.capture(numRequests);
+};
+
+/*
+ * Test unbalanced stop
+ *
+ * Makes sure the camera supports a stop with requests queued. Example failure
+ * is a camera that does not handle cancelation of buffers coming back from the
+ * video device while stopping.
+ */
+TEST_P(FixedRequestsTest, Unbalanced)
{
+ auto [role, numRequests] = GetParam();
+ std::shared_ptr<Camera> camera = Environment::instance()->camera();
+
SimpleCaptureUnbalanced capture(camera);
- Results::Result ret = capture.configure(role);
- if (ret.first != Results::Pass)
- return ret;
+ capture.configure(role);
- return capture.capture(numRequests);
-}
+ capture.capture(numRequests);
+};
-Results testSingleStream(std::shared_ptr<Camera> camera)
-{
- static const std::vector<std::pair<std::string, StreamRole>> roles = {
- { "raw", Raw },
- { "still", StillCapture },
- { "video", VideoRecording },
- { "viewfinder", Viewfinder },
- };
- static const std::vector<unsigned int> numRequests = { 1, 2, 3, 5, 8, 13, 21, 34, 55, 89 };
-
- Results results(numRequests.size() * roles.size() * 3);
-
- for (const auto &role : roles) {
- std::cout << "= Test role " << role.first << std::endl;
- /*
- * Test single capture cycles
- *
- * Makes sure the camera completes the exact number of requests queued.
- * Example failure is a camera that needs N+M requests queued to
- * complete N requests to the application.
- */
- std::cout << "* Test single capture cycles" << std::endl;
- for (unsigned int num : numRequests)
- results.add(testRequestBalance(camera, role.second, 1, num));
-
- /*
- * Test multiple start/stop cycles
- *
- * Makes sure the camera supports multiple start/stop cycles.
- * Example failure is a camera that does not clean up correctly in its
- * error path but is only tested by single-capture applications.
- */
- std::cout << "* Test multiple start/stop cycles" << std::endl;
- for (unsigned int num : numRequests)
- results.add(testRequestBalance(camera, role.second, 3, num));
-
- /*
- * Test unbalanced stop
- *
- * Makes sure the camera supports a stop with requests queued.
- * Example failure is a camera that does not handle cancelation
- * of buffers coming back from the video device while stopping.
- */
- std::cout << "* Test unbalanced stop" << std::endl;
- for (unsigned int num : numRequests)
- results.add(testRequestUnbalance(camera, role.second, num));
- }
-
- return results;
-}
+
+INSTANTIATE_TEST_SUITE_P(RolesAndRequests,
+ FixedRequestsTest,
+ testing::Combine(testing::ValuesIn(ROLES),
+ testing::ValuesIn(NUMREQUESTS)),
+ nameParameters);
diff --git a/src/lc-compliance/tests.h b/src/lc-compliance/tests.h
index 396605214e4b..076785a7185f 100644
--- a/src/lc-compliance/tests.h
+++ b/src/lc-compliance/tests.h
@@ -11,6 +11,23 @@
#include "results.h"
-Results testSingleStream(std::shared_ptr<libcamera::Camera> camera);
+using namespace libcamera;
+
+class Environment
+{
+public:
+ static bool create(std::shared_ptr<Camera> camera);
+ void destroy();
+
+ static Environment *instance();
+
+ std::shared_ptr<Camera> camera() const { return camera_; }
+
+private:
+ Environment() {};
+
+ static Environment *instance_;
+ static std::shared_ptr<Camera> camera_;
+};
#endif /* __LC_COMPLIANCE_TESTS_H__ */
--
2.31.1
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