Test: Begin QuantitySpinBox QTests

tests/src/Gui/QuantitySpinBox.cpp

@@ -0,0 +1,62 @@
+// SPDX-License-Identifier: LGPL-2.1-or-later
+
+#include <QDebug>
+#include <QTest>
+
+#include <App/Application.h>
+
+#include "Gui/QuantitySpinBox.h"
+
+// NOLINTBEGIN(readability-magic-numbers)
+
+class testQuantitySpinBox: public QObject
+{
+    Q_OBJECT
+
+public:
+    testQuantitySpinBox()
+    {
+        if (App::Application::GetARGC() == 0) {
+            constexpr int argc = 1;
+            std::array<char*, argc> argv {"FreeCAD"};
+            App::Application::Config()["ExeName"] = "FreeCAD";
+            App::Application::init(argc, argv.data());
+        }
+        qsb = std::make_unique<Gui::QuantitySpinBox>();
+    }
+
+private Q_SLOTS:
+
+    void init()
+    {}
+
+    void cleanup()
+    {}
+
+    void test_SimpleBaseUnit()// NOLINT
+    {
+        auto result = qsb->valueFromText("1mm");
+        QCOMPARE(result, Base::Quantity(1, QLatin1String("mm")));
+    }
+
+    void test_UnitInNumerator()// NOLINT
+    {
+        auto result = qsb->valueFromText("1mm/10");
+        QCOMPARE(result, Base::Quantity(0.1, QLatin1String("mm")));
+    }
+
+    void test_UnitInDenominator()// NOLINT
+    {
+        auto result = qsb->valueFromText("1/10mm");
+        QCOMPARE(result, Base::Quantity(0.1, QLatin1String("mm")));
+    }
+
+private:
+    std::unique_ptr<Gui::QuantitySpinBox> qsb;
+};
+
+// NOLINTEND(readability-magic-numbers)
+
+QTEST_MAIN(testQuantitySpinBox)
+
+#include "QuantitySpinBox.moc"