From b1008e6a4f660866265083f6f4bd321a85cff377 Mon Sep 17 00:00:00 2001
From: Aaron Kennedy <aaron.kennedy@nokia.com>
Date: Thu, 14 May 2009 14:12:29 +1000
Subject: Add some expression tests

---
 .../qmlbindengine/tst_qmlbindengine.cpp            | 95 ++++++++++++++++++++++
 1 file changed, 95 insertions(+)

diff --git a/tests/auto/declarative/qmlbindengine/tst_qmlbindengine.cpp b/tests/auto/declarative/qmlbindengine/tst_qmlbindengine.cpp
index 251bce4..72c8953 100644
--- a/tests/auto/declarative/qmlbindengine/tst_qmlbindengine.cpp
+++ b/tests/auto/declarative/qmlbindengine/tst_qmlbindengine.cpp
@@ -80,6 +80,8 @@ private slots:
     void methods();
     void signalAssignment();
     void bindingLoop();
+    void basicExpressions();
+    void basicExpressions_data();
     void contextPropertiesTriggerReeval();
 
 private:
@@ -170,6 +172,99 @@ public:
     bool changed;
 };
 
+
+class MyDefaultObject1 : public QObject
+{
+    Q_OBJECT
+    Q_PROPERTY(int horseLegs READ horseLegs);
+    Q_PROPERTY(int antLegs READ antLegs);
+public:
+    int horseLegs() const { return 4; }
+    int antLegs() const { return 6; }
+};
+
+class MyDefaultObject2 : public QObject
+{
+    Q_OBJECT
+    Q_PROPERTY(int antLegs READ antLegs);
+    Q_PROPERTY(int emuLegs READ emuLegs);
+public:
+    int antLegs() const { return 5; } // Had an accident
+    int emuLegs() const { return 2; }
+};
+
+class MyDefaultObject3 : public QObject
+{
+    Q_OBJECT
+    Q_PROPERTY(int antLegs READ antLegs);
+    Q_PROPERTY(int humanLegs READ humanLegs);
+public:
+    int antLegs() const { return 7; } // Mutant
+    int humanLegs() const { return 2; }
+    int millipedeLegs() const { return 1000; }
+};
+
+void tst_qmlbindengine::basicExpressions_data()
+{
+    QTest::addColumn<QString>("expression");
+    QTest::addColumn<QVariant>("result");
+    QTest::addColumn<bool>("nest");
+
+    QTest::newRow("Context property") << "a" << QVariant(1944) << false;
+    QTest::newRow("Context property") << "a" << QVariant(1944) << true;
+    QTest::newRow("Context property expression") << "a * 2" << QVariant(3888) << false;
+    QTest::newRow("Context property expression") << "a * 2" << QVariant(3888) << true;
+    QTest::newRow("Overridden context property") << "b" << QVariant("Milk") << false;
+    QTest::newRow("Overridden context property") << "b" << QVariant("Cow") << true;
+    QTest::newRow("Object property") << "object.stringProperty" << QVariant("Object1") << false;
+    QTest::newRow("Object property") << "object.stringProperty" << QVariant("Object1") << true;
+    QTest::newRow("Overridden object property") << "objectOverride.stringProperty" << QVariant("Object2") << false;
+    QTest::newRow("Overridden object property") << "objectOverride.stringProperty" << QVariant("Object3") << true;
+    QTest::newRow("Default object property") << "horseLegs" << QVariant(4) << false;
+    QTest::newRow("Default object property") << "antLegs" << QVariant(6) << false;
+    QTest::newRow("Default object property") << "emuLegs" << QVariant(2) << false;
+    QTest::newRow("Nested default object property") << "horseLegs" << QVariant(4) << true;
+    QTest::newRow("Nested default object property") << "antLegs" << QVariant(7) << true;
+    QTest::newRow("Nested default object property") << "emuLegs" << QVariant(2) << true;
+    QTest::newRow("Nested default object property") << "humanLegs" << QVariant(2) << true;
+    QTest::newRow("Context property override default object property") << "millipedeLegs" << QVariant(100) << true;
+}
+
+void tst_qmlbindengine::basicExpressions()
+{
+    QFETCH(QString, expression);
+    QFETCH(QVariant, result);
+    QFETCH(bool, nest);
+
+    MyQmlObject object1;
+    MyQmlObject object2;
+    MyQmlObject object3;
+    MyDefaultObject1 default1;
+    MyDefaultObject2 default2;
+    MyDefaultObject3 default3;
+    object1.setStringProperty("Object1");
+    object2.setStringProperty("Object2");
+    object3.setStringProperty("Object3");
+
+    QmlContext context(engine.rootContext());
+    QmlContext nestedContext(&context);
+
+    context.addDefaultObject(&default1);
+    context.addDefaultObject(&default2);
+    context.setContextProperty("a", QVariant(1944));
+    context.setContextProperty("b", QVariant("Milk"));
+    context.setContextProperty("object", &object1);
+    context.setContextProperty("objectOverride", &object2);
+    nestedContext.addDefaultObject(&default3);
+    nestedContext.setContextProperty("b", QVariant("Cow"));
+    nestedContext.setContextProperty("objectOverride", &object3);
+    nestedContext.setContextProperty("millipedeLegs", QVariant(100));
+
+    MyExpression expr(nest?&nestedContext:&context, expression);
+    QCOMPARE(expr.value(), result);
+}
+
+// Tests that modifying a context property will reevaluate expressions
 void tst_qmlbindengine::contextPropertiesTriggerReeval()
 {
     QmlContext context(engine.rootContext());
-- 
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