First Commit

Projects/02_ClassroomTimer/tests/test_ClassroomTimer.cpp

@@ -0,0 +1,100 @@
+#include <QtTest>
+#include <QSpinBox>
+#include <QPushButton>
+#include <QLabel>
+#include <QCheckBox>
+#include "countdown.h"
+#include "mainwindow.h"
+#include <QApplication>
+#include <QDir>
+#include "appearance.h"
+
+static void savePreview(QWidget &window, const QString &fileName)
+{
+    const QString folder = QString::fromLocal8Bit(qgetenv("QT_TEACHING_SCREENSHOTS"));
+    if (folder.isEmpty()) return;
+    QDir().mkpath(folder);
+    window.show();
+    QApplication::processEvents();
+    QVERIFY(window.grab().save(QDir(folder).filePath(fileName)));
+}
+
+class TimerTest : public QObject {
+    Q_OBJECT
+private slots:
+    void initTestCase() { applyAppearance(*qApp); }
+    void pauseResumeAndDrift()
+    {
+        Countdown model(10000);
+        model.start(100);
+        model.start(500); // 重复开始不能重新计时。
+        QCOMPARE(model.remaining(2600), qint64(7500));
+        model.pause(2600);
+        QCOMPARE(model.remaining(90000), qint64(7500));
+        QVERIFY(!model.setDuration(2000));
+        model.start(100000);
+        QCOMPARE(model.remaining(102500), qint64(5000));
+        model.update(107500);
+        QVERIFY(model.state() == Countdown::State::Finished);
+        QCOMPARE(model.remaining(107500), qint64(0));
+        model.start(200000);
+        QCOMPARE(model.remaining(200000), qint64(10000));
+    }
+    void delayedRefreshAndReset()
+    {
+        Countdown model(5000);
+        model.start(0);
+        model.update(100);
+        model.update(4300);
+        QCOMPARE(model.remaining(4300), qint64(700));
+        model.update(9999);
+        QCOMPARE(model.remaining(9999), qint64(0));
+        QVERIFY(model.state() == Countdown::State::Finished);
+        model.reset();
+        QVERIFY(model.state() == Countdown::State::Ready);
+        QCOMPARE(model.remaining(9999), qint64(5000));
+    }
+    void zeroAndDeadlinePause()
+    {
+        Countdown model(0);
+        model.start(0);
+        QVERIFY(model.state() == Countdown::State::Ready);
+        QVERIFY(!model.setDuration(-1));
+        QVERIFY(model.setDuration(1000));
+        model.start(10);
+        model.pause(1010);
+        QVERIFY(model.state() == Countdown::State::Finished);
+    }
+    void uiWorkflow()
+    {
+        MainWindow w; w.show();
+        auto *start = w.findChild<QPushButton *>(QStringLiteral("startButton"));
+        auto *pause = w.findChild<QPushButton *>(QStringLiteral("pauseButton"));
+        auto *reset = w.findChild<QPushButton *>(QStringLiteral("resetButton"));
+        auto *minutes = w.findChild<QSpinBox *>(QStringLiteral("minutesSpin"));
+        auto *seconds = w.findChild<QSpinBox *>(QStringLiteral("secondsSpin"));
+        auto *time = w.findChild<QLabel *>(QStringLiteral("timeLabel"));
+        w.findChild<QCheckBox *>(QStringLiteral("soundCheck"))->setChecked(false);
+        savePreview(w, QStringLiteral("02_timer.png"));
+        minutes->setValue(0); seconds->setValue(1);
+        QTest::mouseClick(start, Qt::LeftButton);
+        QVERIFY(!minutes->isEnabled());
+        QTest::mouseClick(pause, Qt::LeftButton);
+        QCOMPARE(start->text(), QStringLiteral("继续"));
+        const QString pausedText = time->text();
+        QTest::qWait(150);
+        QCOMPARE(time->text(), pausedText);
+        QTest::mouseClick(start, Qt::LeftButton);
+        QTRY_COMPARE(time->text(), QStringLiteral("00:00:00"));
+        QVERIFY(w.findChild<QLabel *>(QStringLiteral("statusLabel"))->text().contains(QStringLiteral("时间到")));
+        QVERIFY(!pause->isEnabled());
+        QTest::mouseClick(reset, Qt::LeftButton);
+        QCOMPARE(time->text(), QStringLiteral("00:00:01"));
+        QVERIFY(minutes->isEnabled());
+        seconds->setValue(0);
+        QVERIFY(!start->isEnabled());
+    }
+};
+QTEST_MAIN(TimerTest)
+#include "test_ClassroomTimer.moc"
+