#include "testenv.h"

#include "localization.h"
#include "zlibreference.h"

#include <QDir>
#include <QFileInfo>
#include <QProcessEnvironment>

class TestZlibReference : public QObject
{
    Q_OBJECT

private slots:
    void nonLinuxIsNoop()
    {
#if defined(Q_OS_LINUX)
        QSKIP("только для Windows и macOS");
#else
        QVERIFY(!ZlibReference::systemIsZlibNg());
        QVERIFY(ZlibReference::bundledPath().isEmpty());
        QProcessEnvironment env;
        env.insert(QStringLiteral("LD_PRELOAD"), QStringLiteral("/x.so"));
        QString note = QStringLiteral("stale");
        QVERIFY(ZlibReference::applyTo(env, &note));
        QVERIFY(note.isEmpty());
        QCOMPARE(env.value(QStringLiteral("LD_PRELOAD")), QStringLiteral("/x.so"));
#endif
    }

    void linuxPreloadFollowsSystemZlib()
    {
#if !defined(Q_OS_LINUX)
        QSKIP("только для Linux");
#else
        QProcessEnvironment env;
        env.insert(QStringLiteral("LD_PRELOAD"), QStringLiteral("/other.so"));
        QString note;
        const bool ok = ZlibReference::applyTo(env, &note);

        if (!ZlibReference::systemIsZlibNg()) {
            // Обычный zlib: окружение не трогаем.
            QVERIFY(ok);
            QVERIFY(note.isEmpty());
            QCOMPARE(env.value(QStringLiteral("LD_PRELOAD")), QStringLiteral("/other.so"));
            return;
        }

        const QString bundled = ZlibReference::bundledPath();
        if (bundled.isEmpty()) {
            QVERIFY(!ok);
            QCOMPARE(note, Loc::text("zlib.warning.referenceMissing"));
            QCOMPARE(env.value(QStringLiteral("LD_PRELOAD")), QStringLiteral("/other.so"));
        } else {
            QVERIFY(ok);
            // Наш zlib первым, чужой LD_PRELOAD сохраняется.
            QCOMPARE(env.value(QStringLiteral("LD_PRELOAD")), bundled + QStringLiteral(":/other.so"));
            QVERIFY(QFileInfo(bundled).isFile());
        }
#endif
    }
};

BILAUNCHER_TEST_MAIN(TestZlibReference)
#include "tst_zlibreference.moc"