修正测试

tests/gtest/main.cpp

@@ -1,9 +1,9 @@
-#include <QCoreApplication>
+#include <QApplication>
 #include <gtest/gtest.h>
 
 int main(int argc, char **argv)
 {
-	QCoreApplication app(argc, argv);
+	QApplication app(argc, argv);
 	::testing::InitGoogleTest(&argc, argv);
 	return RUN_ALL_TESTS();
 }