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#include <QtTest/QtTest>
#include "qbatteryinfo.h"

QT_USE_NAMESPACE

class tst_QBatteryInfo : public QObject
{
    Q_OBJECT

private slots:
    void tst_capacity();
    void tst_flow();
    void tst_invalid();
    void tst_setBatteryIndex();
};

void tst_QBatteryInfo::tst_capacity()
{
    QBatteryInfo batteryInfo;

    int count = batteryInfo.batteryCount();
    for (int i = 0; i < count; ++i) {
        batteryInfo.setBatteryIndex(i);
        int max = batteryInfo.maximumCapacity();
        int remaining = batteryInfo.remainingCapacity();

        QVERIFY(max == -1 || remaining == -1 || remaining <= max);
    }
}

void tst_QBatteryInfo::tst_flow()
{
    QBatteryInfo batteryInfo;

    int count = batteryInfo.batteryCount();
    for (int i = 0; i < count; ++i) {
        batteryInfo.setBatteryIndex(i);
        QBatteryInfo::ChargingState chargingState = batteryInfo.chargingState();
        switch (chargingState) {
        case QBatteryInfo::Charging:
            QVERIFY(batteryInfo.currentFlow() < 0);
            QVERIFY(batteryInfo.remainingChargingTime() >= 0);
            break;
        case QBatteryInfo::IdleChargingState:
            QVERIFY(batteryInfo.currentFlow() >= 0);
            QVERIFY(batteryInfo.remainingChargingTime() == 0);
            break;
        case QBatteryInfo::Discharging:
            QVERIFY(batteryInfo.currentFlow() > 0);
            QVERIFY(batteryInfo.remainingChargingTime() == 0);
            break;
        case QBatteryInfo::UnknownChargingState:
            QVERIFY(batteryInfo.currentFlow() == 0);
            QVERIFY(batteryInfo.remainingChargingTime() == -1);
            break;
        }
    }
}

void tst_QBatteryInfo::tst_invalid()
{
    QBatteryInfo batteryInfo;

    batteryInfo.setBatteryIndex(-1);
    QVERIFY(batteryInfo.currentFlow() == 0);
    QVERIFY(batteryInfo.maximumCapacity() == -1);
    QVERIFY(batteryInfo.remainingCapacity() == -1);
    QVERIFY(batteryInfo.remainingChargingTime() == -1);
    QVERIFY(batteryInfo.voltage() == -1);
    QVERIFY(batteryInfo.chargingState() == QBatteryInfo::UnknownChargingState);
    QVERIFY(batteryInfo.levelStatus() == QBatteryInfo::LevelUnknown);

    int count = batteryInfo.batteryCount();
    batteryInfo.setBatteryIndex(count);
    QVERIFY(batteryInfo.currentFlow() == 0);
    QVERIFY(batteryInfo.maximumCapacity() == -1);
    QVERIFY(batteryInfo.remainingCapacity() == -1);
    QVERIFY(batteryInfo.remainingChargingTime() == -1);
    QVERIFY(batteryInfo.voltage() == -1);
    QVERIFY(batteryInfo.chargingState() == QBatteryInfo::UnknownChargingState);
    QVERIFY(batteryInfo.levelStatus() == QBatteryInfo::LevelUnknown);
}

void tst_QBatteryInfo::tst_setBatteryIndex()
{
    QBatteryInfo batteryInfo;

    QCOMPARE(batteryInfo.batteryIndex(), 0);

    batteryInfo.setBatteryIndex(1);
    QCOMPARE(batteryInfo.batteryIndex(), 1);

    batteryInfo.setBatteryIndex(1000);
    QCOMPARE(batteryInfo.batteryIndex(), 1000);

    batteryInfo.setBatteryIndex(-1);
    QCOMPARE(batteryInfo.batteryIndex(), -1);
}

QTEST_MAIN(tst_QBatteryInfo)
#include "tst_qbatteryinfo.moc"