create inst dir in build folder

Author: Skycoder42

tests/auto/autoupdatercore/UpdaterTest/installercontroller.cpp

@@ -12,7 +12,7 @@ static const QString repogen = BINDIR + QStringLiteral("repogen");
 InstallerController::InstallerController(QObject *parent) :
 	QObject(parent),
 	_version(1, 0, 0),
-	_buildDir()
+	_buildDir(QCoreApplication::applicationDirPath() + "/tst_updatertest_XXXXXX")
 {
 	setVersion(_version);
 }

tests/auto/autoupdatercore/UpdaterTest/tst_updatertest.cpp

@@ -96,9 +96,6 @@ void UpdaterTest::testUpdateCheck()
 	QFETCH(QString, toolPath);
 	QFETCH(bool, hasUpdates);
 	QFETCH(QList<Updater::UpdateInfo>, updates);
-	
-	if(!QDir(toolPath).exists())
-		QFAIL("inst dir does not exist!");
 
 	updater = new Updater(toolPath, this);
 	QVERIFY(updater);