Add the -testability option to Qt applications.

If this option is given, Qt will load a plugin called "qttestability"
and run an initialisation function from it. This allows one to just
install the plugin in a non-debug device in order to enable testing.

Reviewed-by: Thiago Macieira <thiago.macieira@nokia.com>

3 files changed, 27 insertions, 1 deletions

diff --git a/src/corelib/kernel/qcoreapplication.cpp b/src/corelib/kernel/qcoreapplication.cpp
index 61b9ee7..8a55bad 100644
--- a/src/corelib/kernel/qcoreapplication.cpp
+++ b/src/corelib/kernel/qcoreapplication.cpp
@@ -2067,7 +2067,8 @@ QStringList QCoreApplication::arguments()
                 ;
             else if (l1arg == "-style" ||
                      l1arg == "-session" ||
-                     l1arg == "-graphicssystem")
+                     l1arg == "-graphicssystem" ||
+                     l1arg == "-testability")
                 ++a;
             else
                 stripped += arg;
diff --git a/src/gui/kernel/qapplication.cpp b/src/gui/kernel/qapplication.cpp
index 2ad89a2..df5097b 100644
--- a/src/gui/kernel/qapplication.cpp
+++ b/src/gui/kernel/qapplication.cpp
@@ -97,6 +97,10 @@
 
 #include "qapplication.h"
 
+#ifndef QT_NO_LIBRARY
+#include "qlibrary.h"
+#endif
+
 #ifdef Q_WS_WINCE
 #include "qdatetime.h"
 #include "qguifunctions_wince.h"
@@ -457,6 +461,7 @@ bool QApplicationPrivate::animate_tooltip = false;
 bool QApplicationPrivate::fade_tooltip = false;
 bool QApplicationPrivate::animate_toolbox = false;
 bool QApplicationPrivate::widgetCount = false;
+bool QApplicationPrivate::load_testability = false;
 #if defined(Q_WS_WIN) && !defined(Q_WS_WINCE)
 bool QApplicationPrivate::inSizeMove = false;
 #endif
@@ -563,6 +568,8 @@ void QApplicationPrivate::process_cmdline()
             QApplication::setLayoutDirection(Qt::RightToLeft);
         } else if (qstrcmp(arg, "-widgetcount") == 0) {
             widgetCount = true;
+        } else if (qstrcmp(arg, "-testability") == 0) {
+            load_testability = true;
         } else if (arg == "-graphicssystem" && i < argc-1) {
             graphics_system_name = QString::fromLocal8Bit(argv[++i]);
         } else {
@@ -765,6 +772,23 @@ void QApplicationPrivate::construct(
     extern void qt_gui_eval_init(uint);
     qt_gui_eval_init(application_type);
 #endif
+
+#ifndef QT_NO_LIBRARY
+    if(load_testability) {
+        QLibrary testLib(QLatin1String("qttestability"));
+        if (testLib.load()) {
+            typedef void (*TasInitialize)(void);
+            TasInitialize initFunction = (TasInitialize)testLib.resolve("qt_testability_init");
+            if (initFunction) {
+                initFunction();
+            } else {
+                qCritical("Library qttestability resolve failed!");
+            }
+        } else {
+            qCritical("Library qttestability load failed!");
+        }
+    }
+#endif
 }
 
 #if defined(Q_WS_X11)
diff --git a/src/gui/kernel/qapplication_p.h b/src/gui/kernel/qapplication_p.h
index aec21fd..6036196 100644
--- a/src/gui/kernel/qapplication_p.h
+++ b/src/gui/kernel/qapplication_p.h
@@ -452,6 +452,7 @@ public:
     static bool fade_tooltip;
     static bool animate_toolbox;
     static bool widgetCount; // Coupled with -widgetcount switch
+    static bool load_testability; // Coupled with -testability switch
 #ifdef Q_WS_MAC
     static bool native_modal_dialog_active;
 #endif