[TD]Add tests for geometry creation

- check that edge geometry count is correct
- handle delay waiting for threads to complete
- add test for DrawViewDetail

src/Mod/TechDraw/TDTest/DrawViewPartTest.py

@@ -3,11 +3,12 @@
 
 # basic test script for TechDraw module
 # creates a page and 1 view
+from __future__ import print_function
 
 import FreeCAD
 import unittest
 from .TechDrawTestUtilities import createPageWithSVGTemplate
-
+from PySide import QtCore
 
 class DrawViewPartTest(unittest.TestCase):
     def setUp(self):
@@ -21,19 +22,33 @@ class DrawViewPartTest(unittest.TestCase):
         self.page = createPageWithSVGTemplate()
         self.page.Scale = 5.0
         # page.ViewObject.show()    # unit tests run in console mode
-        print("page created")
+        print("DrawViewPart test: page created")
 
     def tearDown(self):
+        print("DrawViewPart test finished")
         FreeCAD.closeDocument("TDPart")
 
     def testMakeDrawViewPart(self):
         """Tests if a view can be added to page"""
+        print("testing DrawViewPart")
         view = FreeCAD.ActiveDocument.addObject("TechDraw::DrawViewPart", "View")
         self.page.addView(view)
         FreeCAD.ActiveDocument.View.Source = [FreeCAD.ActiveDocument.Box]
         FreeCAD.ActiveDocument.recompute()
-        self.assertTrue("Up-to-date" in view.State)
 
+        #wait for threads to complete before checking result
+        loop = QtCore.QEventLoop()
+
+        timer = QtCore.QTimer()
+        timer.setSingleShot(True)
+        timer.timeout.connect(loop.quit)
+
+        timer.start(2000)   #2 second delay
+        loop.exec_()
+
+        edges = view.getVisibleEdges()
+        self.assertEqual(len(edges), 4, "DrawViewPart has wrong number of edges")
+        self.assertTrue("Up-to-date" in view.State, "DrawViewPart is not Up-to-date")
 
 if __name__ == "__main__":
     unittest.main()