Add tests to the cmake build

Use QT_TESTCASE_SOURCEDIR instead of TESTS_SOURCE_DIR.
Introduce Test::HttpServer and Test::Util targets.
Query shared data location from server.

Clean up "shared" resources.

Note QT_TESTCASE_SOURCEDIR must be turned into the canonical form
since the user can call on windows:

"cmake \path\to\foo" instead of "cmake c:\path\to\foo" which
will break all file:// urls.

Note this patch breaks qmake builds.

Task-number: QTBUG-91760
Change-Id: Ibc1f904ac9acd375d1ff70ff80f0c533497e3f20
Reviewed-by: Michael Brüning <michael.bruning@qt.io>

1 files changed, 238 insertions, 0 deletions

diff --git a/tests/auto/util/util.h b/tests/auto/util/util.h
new file mode 100644
index 000000000..537b9212b
--- /dev/null
+++ b/tests/auto/util/util.h
@@ -0,0 +1,238 @@
+/****************************************************************************
+**
+** Copyright (C) 2016 The Qt Company Ltd.
+** Contact: https://www.qt.io/licensing/
+**
+** This file is part of the QtWebEngine module of the Qt Toolkit.
+**
+** $QT_BEGIN_LICENSE:GPL-EXCEPT$
+** 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.
+**
+** $QT_END_LICENSE$
+**
+****************************************************************************/
+
+// Functions and macros that really need to be in QTestLib
+
+#if 0
+#pragma qt_no_master_include
+#endif
+
+#include <QEventLoop>
+#include <QSignalSpy>
+#include <QTimer>
+#include <qwebenginepage.h>
+#include <qwebengineview.h>
+
+// Disconnect signal on destruction.
+class ScopedConnection
+{
+public:
+    ScopedConnection(QMetaObject::Connection connection) : m_connection(std::move(connection)) { }
+    ~ScopedConnection() { QObject::disconnect(m_connection); }
+
+private:
+    QMetaObject::Connection m_connection;
+};
+
+/**
+ * Just like QSignalSpy but facilitates sync and async
+ * signal emission. For example if you want to verify that
+ * page->foo() emitted a signal, it could be that the
+ * implementation decides to emit the signal asynchronously
+ * - in which case we want to spin a local event loop until
+ * emission - or that the call to foo() emits it right away.
+ */
+class SignalBarrier : private QSignalSpy
+{
+public:
+    SignalBarrier(const QObject* obj, const char* aSignal)
+        : QSignalSpy(obj, aSignal)
+    { }
+
+    bool ensureSignalEmitted()
+    {
+        bool result = count() > 0;
+        if (!result)
+            result = wait();
+        clear();
+        return result;
+    }
+};
+
+template<typename T, typename R>
+struct CallbackWrapper {
+    QPointer<R> p;
+    void operator()(const T& result) {
+        if (p)
+            (*p)(result);
+    }
+};
+
+template<typename T>
+class CallbackSpy: public QObject {
+public:
+    CallbackSpy() : called(false) {
+        timeoutTimer.setSingleShot(true);
+        QObject::connect(&timeoutTimer, SIGNAL(timeout()), &eventLoop, SLOT(quit()));
+    }
+
+    T waitForResult(int timeout = 20000) {
+        const int step = 1000;
+        int elapsed = 0;
+        while (elapsed < timeout && !called) {
+            timeoutTimer.start(step);
+            eventLoop.exec();
+            elapsed += step;
+        }
+        return result;
+    }
+
+    bool wasCalled() const {
+        return called;
+    }
+
+    void operator()(const T &result) {
+        this->result = result;
+        called = true;
+        eventLoop.quit();
+    }
+
+    CallbackWrapper<T, CallbackSpy<T> > ref()
+    {
+        CallbackWrapper<T, CallbackSpy<T> > wrapper = {this};
+        return wrapper;
+    }
+
+private:
+    Q_DISABLE_COPY(CallbackSpy)
+    bool called;
+    QTimer timeoutTimer;
+    QEventLoop eventLoop;
+    T result;
+};
+
+static inline QString toPlainTextSync(QWebEnginePage *page)
+{
+    CallbackSpy<QString> spy;
+    page->toPlainText(spy.ref());
+    return spy.waitForResult();
+}
+
+static inline QString toHtmlSync(QWebEnginePage *page)
+{
+    CallbackSpy<QString> spy;
+    page->toHtml(spy.ref());
+    return spy.waitForResult();
+}
+
+static inline bool findTextSync(QWebEnginePage *page, const QString &subString)
+{
+    CallbackSpy<bool> spy;
+    page->findText(subString, {}, spy.ref());
+    return spy.waitForResult();
+}
+
+static inline QVariant evaluateJavaScriptSync(QWebEnginePage *page, const QString &script)
+{
+    CallbackSpy<QVariant> spy;
+    page->runJavaScript(script, spy.ref());
+    return spy.waitForResult();
+}
+
+static inline QVariant evaluateJavaScriptSyncInWorld(QWebEnginePage *page, const QString &script, int worldId)
+{
+    CallbackSpy<QVariant> spy;
+    page->runJavaScript(script, worldId, spy.ref());
+    return spy.waitForResult();
+}
+
+static inline QUrl baseUrlSync(QWebEnginePage *page)
+{
+    CallbackSpy<QVariant> spy;
+    page->runJavaScript("document.baseURI", spy.ref());
+    return spy.waitForResult().toUrl();
+}
+
+static inline bool loadSync(QWebEnginePage *page, const QUrl &url, bool ok = true)
+{
+    QSignalSpy spy(page, &QWebEnginePage::loadFinished);
+    page->load(url);
+    return (!spy.empty() || spy.wait(20000)) && (spy.front().value(0).toBool() == ok);
+}
+
+static inline bool loadSync(QWebEngineView *view, const QUrl &url, bool ok = true)
+{
+    return loadSync(view->page(), url, ok);
+}
+
+static inline QPoint elementCenter(QWebEnginePage *page, const QString &id)
+{
+    const QString jsCode(
+            "(function(){"
+            "   var elem = document.getElementById('" + id + "');"
+            "   var rect = elem.getBoundingClientRect();"
+            "   return [(rect.left + rect.right) / 2, (rect.top + rect.bottom) / 2];"
+            "})()");
+    QVariantList rectList = evaluateJavaScriptSync(page, jsCode).toList();
+
+    if (rectList.count() != 2) {
+        qWarning("elementCenter failed.");
+        return QPoint();
+    }
+
+    return QPoint(rectList.at(0).toInt(), rectList.at(1).toInt());
+}
+
+static inline QRect elementGeometry(QWebEnginePage *page, const QString &id)
+{
+    const QString jsCode(
+                "(function() {"
+                "   var elem = document.getElementById('" + id + "');"
+                "   var rect = elem.getBoundingClientRect();"
+                "   return [rect.left, rect.top, rect.right, rect.bottom];"
+                "})()");
+    QVariantList coords = evaluateJavaScriptSync(page, jsCode).toList();
+
+    if (coords.count() != 4) {
+        qWarning("elementGeometry faield.");
+        return QRect();
+    }
+
+    return QRect(coords[0].toInt(), coords[1].toInt(), coords[2].toInt(), coords[3].toInt());
+}
+
+
+#define W_QSKIP(a, b) QSKIP(a)
+
+#define W_QTEST_MAIN(TestObject, params) \
+int main(int argc, char *argv[]) \
+{ \
+    QList<const char *> w_argv(argc); \
+    for (int i = 0; i < argc; ++i) \
+        w_argv[i] = argv[i]; \
+    for (int i = 0; i < params.size(); ++i) \
+        w_argv.append(params[i].data()); \
+    int w_argc = w_argv.size(); \
+    \
+    QApplication app(w_argc, const_cast<char **>(w_argv.data())); \
+    app.setAttribute(Qt::AA_Use96Dpi, true); \
+    QTEST_DISABLE_KEYPAD_NAVIGATION \
+    TestObject tc; \
+    QTEST_SET_MAIN_SOURCE_PATH \
+    return QTest::qExec(&tc, argc, argv); \
+}