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#include "gate/tests.hpp"
#include "gate/processes.hpp"
#include "gate/environments.hpp"

using namespace gate;


static void ProcessListCallback(Process::Info const& info, bool_t& continueListing)
{
    GATEXX_TEST_CHECK(&info != NULL);
    continueListing = true;
}

GATEXX_TEST_UNIT(Process)
{
    Process::id_t myId = 0;
    GATEXX_TEST_CHECK(myId = Process::getId());
    GATEXX_TEST_CHECK(myId != 0);

    Process::Info info;
    GATEXX_TEST_CHECK_NOTHROW(info = Process::getInfo(myId));
    GATEXX_TEST_CHECK_EQUAL(info.Id(), myId);

    Process::Info info2(info);
    info2 = info;

    time::Milliseconds selfCpuTime;
    GATEXX_TEST_CHECK_NOTHROW(selfCpuTime = info.CpuTime());
    GATEXX_TEST_CHECK(selfCpuTime.value() >= 0);

    time::Milliseconds selfUptime;
    GATEXX_TEST_CHECK_NOTHROW(selfUptime = info.UpTime());
    GATEXX_TEST_CHECK(selfUptime.value() >= 0);

    gate::uint64_t selfMem = 0;
    GATEXX_TEST_CHECK_NOTHROW(selfMem = info.MemoryUsed());
    GATEXX_TEST_CHECK(selfMem > 0);

    gate::uint64_t selfResources = 0;
    GATEXX_TEST_CHECK_NOTHROW(selfResources = info.Resources());
    GATEXX_TEST_CHECK(selfResources > 0);

    String selfName;
    GATEXX_TEST_CHECK_NOTHROW(selfName = info.Name());
    GATEXX_TEST_CHECK(!selfName.empty());

    GATEXX_TEST_CHECK_NOTHROW(info.Path());
    GATEXX_TEST_CHECK_NOTHROW(info.Owner());
    GATEXX_TEST_CHECK_NOTHROW(info.Parent());

    Array<Process::Info> procs;
    GATEXX_TEST_CHECK_NOTHROW(procs = Process::list());
    GATEXX_TEST_CHECK(procs.length() > 0);

    GATEXX_TEST_CHECK_NOTHROW(Process::list(&ProcessListCallback, GATE_PROCESS_ENUM_NAME));
}


#if defined(GATE_SYS_WIN)
#   define TEST_SHELL_PROCESS "cmd.exe"
#   define TEST_SHELL_ARG1 "/c"
#   define TEST_SHELL_ARG2 "exit"
#else
#   define TEST_SHELL_PROCESS "/bin/sh"
#   define TEST_SHELL_ARG1 "-c"
#   define TEST_SHELL_ARG2 "exit"
#endif

GATEXX_TEST_UNIT(ProcessStart)
{
    static StaticString const exePath = TEST_SHELL_PROCESS;
    String workDir = Environment::getWorkPath();
    Array<String> emptyStrArray;

    {
        Process::Child childProc;

        GATEXX_TEST_CHECK_NOTHROW(Process::start(exePath, emptyStrArray, workDir, emptyStrArray, 0, childProc));

        Process::id_t pid = childProc.getId();
        String strPid = Process::printPid(pid);
        Process::id_t pid2 = Process::parsePid(strPid);
        GATEXX_TEST_CHECK(pid == pid2);

        Stream strm = childProc.getStream();
        GATEXX_TEST_CHECK(childProc.getHandle() != GATE_PROCESS_HANDLE_INVALID);
        GATEXX_TEST_CHECK_NOTHROW(childProc.suspend());
        GATEXX_TEST_CHECK_NOTHROW(childProc.resume());
        GATEXX_TEST_CHECK_NOTHROW(childProc.kill());
        GATEXX_TEST_CHECK_NOTHROW(childProc.wait());
        int exitCode = -12345;
        GATEXX_TEST_CHECK_NOTHROW(exitCode = childProc.getExitCode());
        GATEXX_TEST_CHECK_NOT_EQUAL(exitCode, -12345);
    }

    {
        Process::handle_t procHandle = NULL;
        Process::id_t procId = 0;
        Stream procStream = NullStream();
        GATEXX_TEST_CHECK_NOTHROW(Process::start(
            exePath, emptyStrArray, workDir, emptyStrArray, Process::Start_NewTerminal, &procHandle, &procId, &procStream));

        Process::Instance proc(procId);
        Process::Instance proc2(proc);
        proc = proc2;

        GATEXX_TEST_CHECK_EQUAL(proc.getId(), procId);
        GATEXX_TEST_CHECK_NOTHROW(proc.suspend());
        GATEXX_TEST_CHECK_NOTHROW(proc.resume());
        GATEXX_TEST_CHECK_NOTHROW(proc.terminate());
        GATEXX_TEST_CHECK_NOTHROW(proc.kill());
        GATEXX_TEST_CHECK_NOTHROW(proc.wait(5000));
    }
}

GATEXX_TEST_UNIT(ProcessRun)
{
    static StaticString const exePath = TEST_SHELL_PROCESS;
    ArrayList<String> argsBuilder;
    argsBuilder << String::createStaticFrom(TEST_SHELL_ARG1) << String::createStaticFrom(TEST_SHELL_ARG2);
    Array<String> args = argsBuilder.toArray();
    Array<String> envArgs;

    StringStream output;
    int exitCode = 0;

    GATEXX_TEST_CHECK_NOTHROW(Process::run(exePath, args, Environment::getWorkPath(), envArgs, 0, &output, &exitCode));
}

GATEXX_TEST_UNIT(ProcessRun2)
{
    static StaticString const exePath = TEST_SHELL_PROCESS;
    ArrayList<String> argsBuilder;
    argsBuilder << String::createStaticFrom(TEST_SHELL_ARG1) << String::createStaticFrom(TEST_SHELL_ARG2);
    Array<String> args = argsBuilder.toArray();
    Array<String> envArgs;

    StringStream output;
    int exitCode = 0;<--- Variable 'exitCode' is assigned a value that is never used.
    static String location;
    static String userName;
    static String password;
    Process::handle_t handle;
    Process::id_t procId;
    Stream strm = NullStream();

    GATEXX_TEST_REQUIRE_NOTHROW(
        Process::start(exePath, args, Environment::getWorkPath(), envArgs, 0, 
            location, userName, password,
            &handle, &procId, &strm);
    );
    GATEXX_TEST_CHECK_NOTHROW(Process::wait(procId, 5000));
    Process::close(handle);
}