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#ifndef MBGL_TEST_FIXTURES_SERVER_ENVIRONMENT
#define MBGL_TEST_FIXTURES_SERVER_ENVIRONMENT
#include <gtest/gtest.h>
#include <dirent.h>
#include <signal.h>
#include <libgen.h>
class ServerEnvironment : public ::testing::Environment {
public:
inline ServerEnvironment(const std::string &executable);
inline virtual void SetUp();
inline virtual void TearDown();
private:
const std::string executable;
const std::string parent_pid = std::to_string(getpid());
pid_t pid = 0;
};
ServerEnvironment::ServerEnvironment(const std::string &executable_) : executable(executable_) {}
void ServerEnvironment::SetUp() {
pid = fork();
if (pid < 0) {
throw std::runtime_error("Cannot create server process");
} else if (pid == 0) {
char *arg[] = {
const_cast<char *>(executable.c_str()),
const_cast<char *>(parent_pid.c_str()),
nullptr
};
int ret = execv(executable.c_str(), arg);
// This call should not return. In case execve failed, we exit anyway.
if (ret < 0) {
fprintf(stderr, "Failed to start server: %s\n", strerror(errno));
}
exit(0);
} else {
// Wait until the server process sends SIGCONT.
raise(SIGSTOP);
}
}
void ServerEnvironment::TearDown() {
ASSERT_TRUE(pid);
kill(pid, SIGHUP);
}
#endif
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