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/* SPDX-License-Identifier: GPL-2.0-or-later */
/*
* Copyright (C) 2020, Google Inc.
* Copyright (C) 2021, Collabora Ltd.
*
* main.cpp - lc-compliance - The libcamera compliance tool
*/
#include <iomanip>
#include <iostream>
#include <string.h>
#include <gtest/gtest.h>
#include <libcamera/libcamera.h>
#include "environment.h"
#include "../cam/options.h"
using namespace libcamera;
enum {
OptCamera = 'c',
OptList = 'l',
OptFilter = 'f',
OptHelp = 'h',
};
/*
* 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);
}
};
static void listCameras(CameraManager *cm)
{
for (const std::shared_ptr<Camera> &cam : cm->cameras())
std::cout << "- " << cam.get()->id() << std::endl;
}
static int initCamera(CameraManager *cm, OptionsParser::Options options)
{
std::shared_ptr<Camera> camera;
int ret = cm->start();
if (ret) {
std::cout << "Failed to start camera manager: "
<< strerror(-ret) << std::endl;
return ret;
}
if (!options.isSet(OptCamera)) {
std::cout << "No camera specified, available cameras:" << std::endl;
listCameras(cm);
return -ENODEV;
}
const std::string &cameraId = options[OptCamera];
camera = cm->get(cameraId);
if (!camera) {
std::cout << "Camera " << cameraId << " not found, available cameras:" << std::endl;
listCameras(cm);
return -ENODEV;
}
Environment::get()->setup(cm, cameraId);
std::cout << "Using camera " << cameraId << std::endl;
return 0;
}
static int initGtestParameters(char *arg0, OptionsParser::Options options)
{
const std::map<std::string, std::string> gtestFlags = { { "list", "--gtest_list_tests" },
{ "filter", "--gtest_filter" } };
int argc = 0;
std::string filterParam;
/*
* +2 to have space for both the 0th argument that is needed but not
* used and the null at the end.
*/
char **argv = new char *[(gtestFlags.size() + 2)];
if (!argv)
return -ENOMEM;
argv[0] = arg0;
argc++;
if (options.isSet(OptList)) {
argv[argc] = const_cast<char *>(gtestFlags.at("list").c_str());
argc++;
}
if (options.isSet(OptFilter)) {
/*
* The filter flag needs to be passed as a single parameter, in
* the format --gtest_filter=filterStr
*/
filterParam = gtestFlags.at("filter") + "=" +
static_cast<const std::string &>(options[OptFilter]);
argv[argc] = const_cast<char *>(filterParam.c_str());
argc++;
}
argv[argc] = nullptr;
::testing::InitGoogleTest(&argc, argv);
delete[] argv;
return 0;
}
static int initGtest(char *arg0, OptionsParser::Options options)
{
int ret = initGtestParameters(arg0, options);
if (ret)
return ret;
testing::UnitTest::GetInstance()->listeners().Append(new ThrowListener);
return 0;
}
static int parseOptions(int argc, char **argv, OptionsParser::Options *options)
{
OptionsParser parser;
parser.addOption(OptCamera, OptionString,
"Specify which camera to operate on, by id", "camera",
ArgumentRequired, "camera");
parser.addOption(OptList, OptionNone, "List all tests and exit", "list");
parser.addOption(OptFilter, OptionString,
"Specify which tests to run", "filter",
ArgumentRequired, "filter");
parser.addOption(OptHelp, OptionNone, "Display this help message",
"help");
*options = parser.parse(argc, argv);
if (!options->valid())
return -EINVAL;
if (options->isSet(OptHelp)) {
parser.usage();
std::cerr << "Further options from Googletest can be passed as environment variables"
<< std::endl;
return -EINTR;
}
return 0;
}
int main(int argc, char **argv)
{
OptionsParser::Options options;
int ret = parseOptions(argc, argv, &options);
if (ret == -EINTR)
return EXIT_SUCCESS;
if (ret < 0)
return EXIT_FAILURE;
std::unique_ptr<CameraManager> cm = std::make_unique<CameraManager>();
/* No need to initialize the camera if we'll just list tests */
if (!options.isSet(OptList)) {
ret = initCamera(cm.get(), options);
if (ret)
return ret;
}
ret = initGtest(argv[0], options);
if (ret)
return ret;
ret = RUN_ALL_TESTS();
if (!options.isSet(OptList))
cm->stop();
return ret;
}
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