Add unit tests for trianglevisitor

Change-Id: I560c891a26c18c198e3b11eb02548b542e58591e
Reviewed-by: Tomi Korpipää <tomi.korpipaa@qt.io>
Reviewed-by: Sean Harmer <sean.harmer@kdab.com>

tests/auto/render/render.pro

@@ -93,7 +93,8 @@ qtConfig(private_tests) {
         materialparametergathererjob \
         renderviewbuilder \
         filtercompatibletechniquejob \
-        rendercapture
+        rendercapture \
+        trianglevisitor
 
     !macos: SUBDIRS += graphicshelpergl4
 }

tests/auto/render/trianglevisitor/trianglevisitor.pro

+TEMPLATE = app
+
+TARGET = trianglevisitor
+
+QT += 3dcore 3dcore-private 3drender 3drender-private testlib
+
+CONFIG += testcase
+
+SOURCES += tst_trianglevisitor.cpp
+
+include(../../core/common/common.pri)
+include(../commons/commons.pri)