Add unit tests.

These test the complete workflow as the user experiences it when
clicking "Start".
Intended usage:
    (1) Run sdktool to set up a kit with the toolchain you want
        to test against (using a temporary directory).
        The tests assume exactly one Kit to be present.
    (2) Start Creator with a matching settings path and
        "-load ClangStaticAnalyzer -test ClangStaticAnalyzer".
    (3) Repeat until all toolchains have been tested.
The initial implementation tests one trivial source file
with both qbs and qmake.

Change-Id: I810f23e2990a789a4dd9f1dd16335fbcf5c5f39f
Reviewed-by: Nikolai Kosjar <nikolai.kosjar@theqtcompany.com>

plugins/clangstaticanalyzer/clangstaticanalyzerunittests.cpp

@@ -0,0 +1,104 @@
+/****************************************************************************
+**
+** Copyright (C) 2014 Digia Plc
+** All rights reserved.
+** For any questions to Digia, please use contact form at http://qt.digia.com <http://qt.digia.com/>
+**
+** This file is part of the Qt Enterprise Qt Quick Profiler Add-on.
+**
+** Licensees holding valid Qt Enterprise licenses may use this file in
+** accordance with the Qt Enterprise License Agreement provided with the
+** Software or, alternatively, in accordance with the terms contained in
+** a written agreement between you and Digia.
+**
+** If you have questions regarding the use of this file, please use
+** contact form at http://qt.digia.com <http://qt.digia.com/>
+**
+****************************************************************************/
+
+#include "clangstaticanalyzerunittests.h"
+
+#include "clangstaticanalyzerdiagnostic.h"
+#include "clangstaticanalyzertool.h"
+#include "clangstaticanalyzerutils.h"
+
+#include <analyzerbase/analyzermanager.h>
+#include <cpptools/cppmodelmanager.h>
+#include <cpptools/cpptoolstestcase.h>
+#include <projectexplorer/kitinformation.h>
+#include <projectexplorer/kitmanager.h>
+#include <projectexplorer/projectexplorer.h>
+#include <projectexplorer/toolchain.h>
+#include <utils/fileutils.h>
+
+#include <QEventLoop>
+#include <QSignalSpy>
+#include <QTemporaryDir>
+#include <QTimer>
+#include <QtTest>
+
+using namespace Analyzer;
+using namespace ProjectExplorer;
+using namespace Utils;
+
+namespace ClangStaticAnalyzer {
+namespace Internal {
+
+ClangStaticAnalyzerUnitTests::ClangStaticAnalyzerUnitTests(ClangStaticAnalyzerTool *analyzerTool,
+                                                           QObject *parent)
+    : QObject(parent)
+    , m_analyzerTool(analyzerTool)
+    , m_tmpDir(0)
+{
+}
+
+void ClangStaticAnalyzerUnitTests::initTestCase()
+{
+    const QList<Kit *> allKits = KitManager::kits();
+    if (allKits.count() != 1)
+        QSKIP("This test requires exactly one kit to be present");
+    const ToolChain * const toolchain = ToolChainKitInformation::toolChain(allKits.first());
+    if (!toolchain)
+        QSKIP("This test requires that there is a kit with a toolchain.");
+    bool hasClangExecutable;
+    clangExecutableFromSettings(toolchain->type(), &hasClangExecutable);
+    if (!hasClangExecutable)
+        QSKIP("No clang suitable for analyzing found");
+
+    m_tmpDir = new CppTools::Tests::TemporaryCopiedDir(QLatin1String(":/unit-tests"));
+}
+
+void ClangStaticAnalyzerUnitTests::cleanupTestCase()
+{
+    delete m_tmpDir;
+}
+
+void ClangStaticAnalyzerUnitTests::testProject()
+{
+    QFETCH(QString, projectFilePath);
+    QFETCH(int, expectedDiagCount);
+
+    CppTools::Tests::ProjectOpenerAndCloser projectManager;
+    const CppTools::ProjectInfo projectInfo = projectManager.open(projectFilePath, true);
+    QVERIFY(projectInfo.isValid());
+    AnalyzerManager::selectTool(m_analyzerTool, Analyzer::StartLocal);
+    AnalyzerManager::startTool();
+    if (m_analyzerTool->isRunning()) {
+        QSignalSpy waiter(m_analyzerTool, SIGNAL(finished()));
+        QVERIFY(waiter.wait(30000));
+    }
+    QCOMPARE(m_analyzerTool->diagnostics().count(), expectedDiagCount);
+}
+
+void ClangStaticAnalyzerUnitTests::testProject_data()
+{
+    QTest::addColumn<QString>("projectFilePath");
+    QTest::addColumn<int>("expectedDiagCount");
+    QTest::newRow("qbs project")
+            << QString(m_tmpDir->path() + QLatin1String("/simple/simple.qbs")) << 1;
+    QTest::newRow("qbs project")
+            << QString(m_tmpDir->path() + QLatin1String("/simple/simple.pro")) << 1;
+}
+
+} // namespace Internal
+} // namespace ClangStaticAnalyzerPlugin