First Commit

Projects/03_RaffleGroups/tests/test_RaffleGroups.cpp

@@ -0,0 +1,119 @@
+#include <QtTest>
+#include <QPlainTextEdit>
+#include <QPushButton>
+#include <QSpinBox>
+#include <QTabWidget>
+#include <QLabel>
+#include <QSet>
+#include "roster.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 RaffleTest : public QObject {
+    Q_OBJECT
+private slots:
+    void initTestCase() { applyAppearance(*qApp); }
+    void parsing()
+    {
+        auto parsed = Roster::parse(QStringLiteral(" 01 张三 \r\n\n02 李四\r\n"));
+        QVERIFY(parsed.ok()); QCOMPARE(parsed.names.size(), 2);
+        QCOMPARE(parsed.names.first(), QStringLiteral("01 张三"));
+        QVERIFY(!Roster::parse(QStringLiteral("张三\n 张三 ")).ok());
+        QVERIFY(!Roster::parse(QStringLiteral(" \n ")).ok());
+        QVERIFY(Roster::parse(QStringLiteral("01 张三\n02 张三")).ok());
+        QVERIFY(!Roster::parse(QString(101, QLatin1Char('x'))).ok());
+    }
+    void drawingWithoutReplacement()
+    {
+        Roster::Session session;
+        const QStringList names = {QStringLiteral("A"), QStringLiteral("B"),
+                                   QStringLiteral("C"), QStringLiteral("D")};
+        session.setNames(names);
+        QRandomGenerator random(12345);
+        QVERIFY(session.draw(5, random).isEmpty());
+        QCOMPARE(session.remainingCount(), 4);
+        QStringList drawn = session.draw(2, random);
+        drawn.append(session.draw(2, random));
+        QSet<QString> unique;
+        for (const QString &name : drawn) unique.insert(name);
+        QCOMPARE(unique.size(), 4);
+        QCOMPARE(session.remainingCount(), 0);
+        QVERIFY(session.draw(1, random).isEmpty());
+        session.resetDraw();
+        QCOMPARE(session.remainingCount(), 4);
+    }
+    void groupingInvariants()
+    {
+        QRandomGenerator random(54321);
+        for (int n = 1; n <= 100; ++n) {
+            QStringList names;
+            for (int i = 0; i < n; ++i) names.append(QString::number(i));
+            Roster::Session session; session.setNames(names);
+            session.draw(1, random); // 分组仍使用全部名单。
+            for (bool byCount : {false, true}) {
+                const int value = byCount ? qMin(n, 7) : 7;
+                const auto groups = session.groups(value, byCount, random);
+                QCOMPARE(groups.size(), byCount ? value : (n + value - 1) / value);
+                QSet<QString> all; int total = 0, smallest = n, largest = 0;
+                for (const QStringList &group : groups) {
+                    QVERIFY(!group.isEmpty());
+                    smallest = qMin(smallest, static_cast<int>(group.size()));
+                    largest = qMax(largest, static_cast<int>(group.size()));
+                    total += static_cast<int>(group.size());
+                    for (const QString &name : group) all.insert(name);
+                }
+                QCOMPARE(total, n); QCOMPARE(all.size(), n);
+                QVERIFY(largest - smallest <= 1);
+                if (!byCount) QVERIFY(largest <= value);
+            }
+            QVERIFY(session.groups(n + 1, true, random).isEmpty());
+        }
+    }
+    void uiWorkflow()
+    {
+        MainWindow w; w.show();
+        auto *names = w.findChild<QPlainTextEdit *>(QStringLiteral("namesEdit"));
+        auto *apply = w.findChild<QPushButton *>(QStringLiteral("applyButton"));
+        auto *draw = w.findChild<QPushButton *>(QStringLiteral("drawButton"));
+        auto *chosen = w.findChild<QPlainTextEdit *>(QStringLiteral("chosenEdit"));
+        QVERIFY(!draw->isEnabled());
+        QTest::mouseClick(apply, Qt::LeftButton);
+        QVERIFY(draw->isEnabled());
+        QTest::mouseClick(draw, Qt::LeftButton);
+        QVERIFY(!chosen->toPlainText().isEmpty());
+        savePreview(w, QStringLiteral("03_raffle.png"));
+        w.findChild<QTabWidget *>(QStringLiteral("resultTabs"))->setCurrentIndex(1);
+        QTest::mouseClick(w.findChild<QPushButton *>(QStringLiteral("groupsButton")), Qt::LeftButton);
+        auto *groups = w.findChild<QPlainTextEdit *>(QStringLiteral("groupsEdit"));
+        QVERIFY(groups->toPlainText().contains(QStringLiteral("第 3 组")));
+        savePreview(w, QStringLiteral("03_groups.png"));
+        names->setPlainText(QStringLiteral("A\nA"));
+        QVERIFY(!draw->isEnabled());
+        QVERIFY(groups->toPlainText().isEmpty());
+        QTest::mouseClick(apply, Qt::LeftButton);
+        QVERIFY(w.findChild<QLabel *>(QStringLiteral("statusLabel"))->text().contains(QStringLiteral("重复")));
+        names->setPlainText(QStringLiteral("A\nB"));
+        QTest::mouseClick(apply, Qt::LeftButton);
+        w.findChild<QTabWidget *>(QStringLiteral("resultTabs"))->setCurrentIndex(0);
+        w.findChild<QSpinBox *>(QStringLiteral("drawCountSpin"))->setValue(2);
+        QTest::mouseClick(draw, Qt::LeftButton);
+        QVERIFY(!draw->isEnabled());
+        QTest::mouseClick(w.findChild<QPushButton *>(QStringLiteral("resetButton")), Qt::LeftButton);
+        QVERIFY(draw->isEnabled());
+    }
+};
+QTEST_MAIN(RaffleTest)
+#include "test_RaffleGroups.moc"
+

Projects/03_RaffleGroups/tests/test_RaffleGroups.pro

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+QT += widgets testlib
+CONFIG += c++14 console testcase
+greaterThan(QT_MAJOR_VERSION, 5): CONFIG += c++17
+TEMPLATE = app
+TARGET = test_RaffleGroups
+INCLUDEPATH += ..
+SOURCES += test_RaffleGroups.cpp ../mainwindow.cpp ../roster.cpp
+HEADERS += ../mainwindow.h ../roster.h
+FORMS += ../mainwindow.ui
+msvc: QMAKE_CXXFLAGS += /utf-8
+