QmlJs code model: added test cases.

Added test cases and modified the test suite in order to make it
data-driven.  Each sample file can now declare the number of
expected messages.  If there is no declaration, zero is assumed.

Change-Id: Ife3daa10a258f51ea8f896156f6f6af783406b84
Reviewed-by: Thomas Hartmann <Thomas.Hartmann@theqtcompany.com>

tests/auto/qml/codemodel/dependencies/samples/test_Button.qml

@@ -0,0 +1,33 @@
+/****************************************************************************
+**
+** Copyright (C) 2016 The Qt Company Ltd.
+** Contact: https://www.qt.io/licensing/
+**
+** This file is part of Qt Creator.
+**
+** Commercial License Usage
+** Licensees holding valid commercial Qt licenses may use this file in
+** accordance with the commercial license agreement provided with the
+** Software or, alternatively, in accordance with the terms contained in
+** a written agreement between you and The Qt Company. For licensing terms
+** and conditions see https://www.qt.io/terms-conditions. For further
+** information use the contact form at https://www.qt.io/contact-us.
+**
+** GNU General Public License Usage
+** Alternatively, this file may be used under the terms of the GNU
+** General Public License version 3 as published by the Free Software
+** Foundation with exceptions as appearing in the file LICENSE.GPL3-EXCEPT
+** included in the packaging of this file. Please review the following
+** information to ensure the GNU General Public License requirements will
+** be met: https://www.gnu.org/licenses/gpl-3.0.html.
+**
+****************************************************************************/
+
+import QtQuick 2.4
+import QtQuick.Controls 1.4
+
+Button {
+    text: "Button"
+    antialiasing: true
+    scale: 1.0
+}

tests/auto/qml/codemodel/dependencies/samples/test_ListModel.qml

@@ -0,0 +1,43 @@
+/****************************************************************************
+**
+** Copyright (C) 2016 The Qt Company Ltd.
+** Contact: https://www.qt.io/licensing/
+**
+** This file is part of Qt Creator.
+**
+** Commercial License Usage
+** Licensees holding valid commercial Qt licenses may use this file in
+** accordance with the commercial license agreement provided with the
+** Software or, alternatively, in accordance with the terms contained in
+** a written agreement between you and The Qt Company. For licensing terms
+** and conditions see https://www.qt.io/terms-conditions. For further
+** information use the contact form at https://www.qt.io/contact-us.
+**
+** GNU General Public License Usage
+** Alternatively, this file may be used under the terms of the GNU
+** General Public License version 3 as published by the Free Software
+** Foundation with exceptions as appearing in the file LICENSE.GPL3-EXCEPT
+** included in the packaging of this file. Please review the following
+** information to ensure the GNU General Public License requirements will
+** be met: https://www.gnu.org/licenses/gpl-3.0.html.
+**
+****************************************************************************/
+
+import QtQuick 2.4
+
+ListModel {
+    id: fruitModel
+
+    ListElement {
+        name: "Apple"
+        cost: 2.45
+    }
+    ListElement {
+        name: "Orange"
+        cost: 3.25
+    }
+    ListElement {
+        name: "Banana"
+        cost: 1.95
+    }
+}

tests/auto/qml/codemodel/dependencies/samples/test_ListView.qml

@@ -0,0 +1,35 @@
+/****************************************************************************
+**
+** Copyright (C) 2016 The Qt Company Ltd.
+** Contact: https://www.qt.io/licensing/
+**
+** This file is part of Qt Creator.
+**
+** Commercial License Usage
+** Licensees holding valid commercial Qt licenses may use this file in
+** accordance with the commercial license agreement provided with the
+** Software or, alternatively, in accordance with the terms contained in
+** a written agreement between you and The Qt Company. For licensing terms
+** and conditions see https://www.qt.io/terms-conditions. For further
+** information use the contact form at https://www.qt.io/contact-us.
+**
+** GNU General Public License Usage
+** Alternatively, this file may be used under the terms of the GNU
+** General Public License version 3 as published by the Free Software
+** Foundation with exceptions as appearing in the file LICENSE.GPL3-EXCEPT
+** included in the packaging of this file. Please review the following
+** information to ensure the GNU General Public License requirements will
+** be met: https://www.gnu.org/licenses/gpl-3.0.html.
+**
+****************************************************************************/
+
+import QtQuick 2.4
+
+ListView {
+    anchors.fill: parent
+    model: fruitModel
+    delegate: Row {
+        Text { text: "Fruit: " + name }
+        Text { text: "Cost: $" + cost }
+    }
+}

tests/auto/qml/codemodel/dependencies/samples/test_MessageDialog.qml

@@ -0,0 +1,37 @@
+/****************************************************************************
+**
+** Copyright (C) 2016 The Qt Company Ltd.
+** Contact: https://www.qt.io/licensing/
+**
+** This file is part of Qt Creator.
+**
+** Commercial License Usage
+** Licensees holding valid commercial Qt licenses may use this file in
+** accordance with the commercial license agreement provided with the
+** Software or, alternatively, in accordance with the terms contained in
+** a written agreement between you and The Qt Company. For licensing terms
+** and conditions see https://www.qt.io/terms-conditions. For further
+** information use the contact form at https://www.qt.io/contact-us.
+**
+** GNU General Public License Usage
+** Alternatively, this file may be used under the terms of the GNU
+** General Public License version 3 as published by the Free Software
+** Foundation with exceptions as appearing in the file LICENSE.GPL3-EXCEPT
+** included in the packaging of this file. Please review the following
+** information to ensure the GNU General Public License requirements will
+** be met: https://www.gnu.org/licenses/gpl-3.0.html.
+**
+****************************************************************************/
+
+import QtQuick 2.4
+import QtQuick.Dialogs 1.1
+
+MessageDialog {
+    id: messageDialog
+    title: "May I have your attention please"
+    text: "It's so cool that you are using Qt Quick."
+    onAccepted: {
+        console.log("And of course you could only agree.")
+        Qt.quit()
+    }
+}

tests/auto/qml/codemodel/dependencies/samples/test_ObjectModel.qml

@@ -0,0 +1,41 @@
+/****************************************************************************
+**
+** Copyright (C) 2016 The Qt Company Ltd.
+** Contact: https://www.qt.io/licensing/
+**
+** This file is part of Qt Creator.
+**
+** Commercial License Usage
+** Licensees holding valid commercial Qt licenses may use this file in
+** accordance with the commercial license agreement provided with the
+** Software or, alternatively, in accordance with the terms contained in
+** a written agreement between you and The Qt Company. For licensing terms
+** and conditions see https://www.qt.io/terms-conditions. For further
+** information use the contact form at https://www.qt.io/contact-us.
+**
+** GNU General Public License Usage
+** Alternatively, this file may be used under the terms of the GNU
+** General Public License version 3 as published by the Free Software
+** Foundation with exceptions as appearing in the file LICENSE.GPL3-EXCEPT
+** included in the packaging of this file. Please review the following
+** information to ensure the GNU General Public License requirements will
+** be met: https://www.gnu.org/licenses/gpl-3.0.html.
+**
+****************************************************************************/
+
+import QtQuick 2.4
+import QtQml.Models 2.2
+
+Rectangle {
+    ObjectModel {
+        id: itemModel
+        Rectangle { height: 30; width: 80; color: "red" }
+        Rectangle { height: 30; width: 80; color: "green" }
+        Rectangle { height: 30; width: 80; color: "blue" }
+    }
+
+    ListView {
+        anchors.fill: parent
+        model: itemModel
+    }
+}

tests/auto/qml/codemodel/dependencies/samples/test_Window.qml

@@ -23,6 +23,9 @@
 **
 ****************************************************************************/
 
+// ExpectedSemanticMessages: 0
+// ExpectedStaticMessages: 1
+
 import QtQuick 2.4
 import QtQuick.Controls 1.3
 

tests/auto/qml/codemodel/dependencies/tst_dependencies.cpp

@@ -52,15 +52,48 @@ using namespace QmlJS;
 using namespace QmlJS::AST;
 using namespace QmlJS::StaticAnalysis;
 
-static Document::MutablePtr readDocument(const QString &path)
+static QString getValue(const QString &data,
+                        const QString &re,
+                        const QString &defaultValue = QString::number(0)) {
+    const QRegularExpressionMatch m = QRegularExpression(re).match(data);
+    return m.hasMatch() ? m.captured(1) : defaultValue;
+}
+
+struct TestData
 {
-    Document::MutablePtr doc = Document::create(path, Dialect::Qml);
+    TestData(Document::MutablePtr document, int nSemanticMessages, int nStaticMessages)
-    QFile file(doc->fileName());
+        : doc(document)
+        , semanticMessages(nSemanticMessages)
+        , staticMessages(nStaticMessages)
+    {}
+    Document::MutablePtr doc;
+    const int semanticMessages;
+    const int staticMessages;
+};
+
+static TestData testData(const QString &path) {
+    QFile file(path);
     file.open(QFile::ReadOnly | QFile::Text);
-    doc->setSource(file.readAll());
+    const QString content = QString(file.readAll());
     file.close();
+
+    Document::MutablePtr doc = Document::create(path, Dialect::Qml);
+    doc->setSource(content);
     doc->parse();
-    return doc;
+    const QString nSemantic = getValue(content, "//\\s*ExpectedSemanticMessages: (\\d+)");
+    const QString nStatic = getValue(content, "//\\s*ExpectedStaticMessages: (\\d+)");
+    return TestData(doc, nSemantic.toInt(), nStatic.toInt());
+}
+
+void printUnexpectedMessages(const QmlJSTools::SemanticInfo &info, int nSemantic, int nStatic)
+{
+    if (nSemantic == 0 && info.semanticMessages.length() > 0)
+        for (auto msg: info.semanticMessages)
+            qDebug() << msg.message;
+    if (nStatic == 0 && info.staticAnalysisMessages.length() > 0)
+        for (auto msg: info.staticAnalysisMessages)
+            qDebug() << msg.message;
+    return;
 }
 
 class tst_Dependencies : public QObject
@@ -97,21 +130,17 @@ void tst_Dependencies::test_data()
     QTest::addColumn<int>("nSemanticMessages");
     QTest::addColumn<int>("nStaticMessages");
 
-    QTest::newRow("ApplicationWindow")
+    QDirIterator it(m_path, QDir::Files);
-            << QString(m_path + QLatin1String("/001_ApplicationWindow.qml"))
+    while (it.hasNext()) {
-            << 0
+        const QString &filepath = it.next();
-            << 0;
+        const QString name = getValue(filepath, ".*/(.*).qml", filepath);
-    QTest::newRow("Window")
+        QTest::newRow(name.toLatin1().data()) << filepath;
-            << QString(m_path + QLatin1String("/002_Window.qml"))
+    }
-            << 0
-            << 1;
 }
 
 void tst_Dependencies::test()
 {
     QFETCH(QString, filename);
-    QFETCH(int, nSemanticMessages);
-    QFETCH(int, nStaticMessages);
 
     ModelManagerInterface *modelManager = ModelManagerInterface::instance();
 
@@ -124,8 +153,10 @@ void tst_Dependencies::test()
     ModelManagerInterface::importScan(result, ModelManagerInterface::workingCopy(), lPaths,
                                       ModelManagerInterface::instance(), false);
 
-
+    TestData data = testData(filename);
-    Document::MutablePtr doc = readDocument(filename);
+    Document::MutablePtr doc = data.doc;
+    int nExpectedSemanticMessages = data.semanticMessages;
+    int nExpectedStaticMessages = data.staticMessages;
     QVERIFY(!doc->source().isEmpty());
 
     Snapshot snapshot = modelManager->snapshot();
@@ -134,7 +165,8 @@ void tst_Dependencies::test()
     semanticInfo.document = doc;
     semanticInfo.snapshot = snapshot;
 
-    Link link(semanticInfo.snapshot, modelManager->defaultVContext(doc->language(), doc), modelManager->builtins(doc));
+    Link link(semanticInfo.snapshot, modelManager->defaultVContext(doc->language(), doc),
+              modelManager->builtins(doc));
 
     semanticInfo.context = link(doc, &semanticInfo.semanticMessages);
 
@@ -144,8 +176,10 @@ void tst_Dependencies::test()
     Check checker(doc, semanticInfo.context);
     semanticInfo.staticAnalysisMessages = checker();
 
-    QCOMPARE(semanticInfo.semanticMessages.length(), nSemanticMessages);
+    printUnexpectedMessages(semanticInfo, nExpectedSemanticMessages, nExpectedStaticMessages);
-    QCOMPARE(semanticInfo.staticAnalysisMessages.length(), nStaticMessages);
+
+    QCOMPARE(semanticInfo.semanticMessages.length(), nExpectedSemanticMessages);
+    QCOMPARE(semanticInfo.staticAnalysisMessages.length(), nExpectedStaticMessages);
 }
 
 QTEST_MAIN(tst_Dependencies)