test: Add tests for the proxy role functionality

tests/SortFilterProxyModel.pro

@@ -6,11 +6,13 @@ CONFIG += c++11 warn_on qmltestcase qml_debug no_keywords
 include(../SortFilterProxyModel.pri)
 
 HEADERS += \
-    indexsorter.h
+    indexsorter.h \
+    testroles.h
 
 SOURCES += \
     tst_sortfilterproxymodel.cpp \
-    indexsorter.cpp
+    indexsorter.cpp \
+    testroles.cpp
 
 OTHER_FILES += \
     tst_rangefilter.qml \
@@ -20,4 +22,5 @@ OTHER_FILES += \
     tst_helpers.qml \
     tst_builtins.qml \
     tst_rolesorter.qml \
-    tst_stringsorter.qml
+    tst_stringsorter.qml \
+    tst_proxyroles.qml

tests/testroles.cpp

@@ -0,0 +1,37 @@
+#include "testroles.h"
+#include <QtQml>
+
+QVariant StaticRole::value() const
+{
+    return m_value;
+}
+
+void StaticRole::setValue(const QVariant& value)
+{
+    if (m_value == value)
+        return;
+
+    m_value = value;
+    Q_EMIT valueChanged();
+    invalidate();
+}
+
+QVariant StaticRole::data(const QModelIndex& sourceIndex, const qqsfpm::QQmlSortFilterProxyModel& proxyModel)
+{
+    Q_UNUSED(sourceIndex)
+    Q_UNUSED(proxyModel)
+    return m_value;
+}
+
+QVariant SourceIndexRole::data(const QModelIndex& sourceIndex, const qqsfpm::QQmlSortFilterProxyModel& proxyModel)
+{
+    Q_UNUSED(proxyModel)
+    return sourceIndex.row();
+}
+
+void registerTestRolesTypes() {
+    qmlRegisterType<StaticRole>("SortFilterProxyModel.Test", 0, 2, "StaticRole");
+    qmlRegisterType<SourceIndexRole>("SortFilterProxyModel.Test", 0, 2, "SourceIndexRole");
+}
+
+Q_COREAPP_STARTUP_FUNCTION(registerTestRolesTypes)

tests/testroles.h

@@ -0,0 +1,35 @@
+#ifndef TESTROLES_H
+#define TESTROLES_H
+
+#include "proxyrole.h"
+
+class StaticRole : public qqsfpm::ProxyRole
+{
+    Q_OBJECT
+    Q_PROPERTY(QVariant value READ value WRITE setValue NOTIFY valueChanged)
+public:
+    using qqsfpm::ProxyRole::ProxyRole;
+
+    QVariant value() const;
+    void setValue(const QVariant& value);
+
+Q_SIGNALS:
+    void valueChanged();
+
+protected:
+
+private:
+    QVariant data(const QModelIndex& sourceIndex, const qqsfpm::QQmlSortFilterProxyModel& proxyModel) override;
+    QVariant m_value;
+};
+
+class SourceIndexRole : public qqsfpm::ProxyRole
+{
+public:
+    using qqsfpm::ProxyRole::ProxyRole;
+
+private:
+    QVariant data(const QModelIndex& sourceIndex, const qqsfpm::QQmlSortFilterProxyModel& proxyModel) override;
+};
+
+#endif // TESTROLES_H

tests/tst_proxyroles.qml

@@ -0,0 +1,58 @@
+import QtQuick 2.0
+import QtQml 2.2
+import QtTest 1.1
+import SortFilterProxyModel 0.2
+import SortFilterProxyModel.Test 0.2
+import QtQml 2.2
+
+Item {
+    ListModel {
+        id: listModel
+        ListElement { test: "first"; keep: true }
+        ListElement { test: "second"; keep: true }
+        ListElement { test: "third"; keep: true }
+    }
+
+    SortFilterProxyModel {
+        id: testModel
+        sourceModel: listModel
+        filters: ValueFilter {
+            roleName: "keep"
+            value: true
+        }
+
+        proxyRoles: [
+            StaticRole {
+                id: proxyRole
+                name: "staticRole"
+                value: "foo"
+            },
+            SourceIndexRole {
+                name: "sourceIndexRole"
+            }
+        ]
+    }
+
+    Instantiator {
+        id: instantiator
+        model: testModel
+        QtObject {
+            property string staticRole: model.staticRole
+            property int sourceIndexRole: model.sourceIndexRole
+        }
+    }
+
+    TestCase {
+        name: "ProxyRoles"
+
+        function test_proxyRole() {
+            compare(instantiator.object.staticRole, "foo");
+            proxyRole.value = "bar";
+            compare(instantiator.object.staticRole, "bar");
+            compare(instantiator.object.sourceIndexRole, 0);
+            compare(testModel.get(1, "sourceIndexRole"), 1);
+            listModel.setProperty(1, "keep", false);
+            compare(testModel.get(1, "sourceIndexRole"), 2);
+        }
+    }
+}