[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/DrawViewSectionTest.py

@@ -1,7 +1,7 @@
 import FreeCAD
 import unittest
 from .TechDrawTestUtilities import createPageWithSVGTemplate
-
+from PySide import QtCore
 
 class DrawViewSectionTest(unittest.TestCase):
     def setUp(self):
@@ -15,7 +15,7 @@ class DrawViewSectionTest(unittest.TestCase):
         self.page = createPageWithSVGTemplate()
         self.page.Scale = 5.0
         # page.ViewObject.show()    # unit tests run in console mode
-        print("page created")
+        print("DrawViewSection test: page created")
 
         self.view = FreeCAD.ActiveDocument.addObject("TechDraw::DrawViewPart", "View")
         self.page.addView(self.view)
@@ -24,9 +24,22 @@ class DrawViewSectionTest(unittest.TestCase):
         self.view.Rotation = 0.0
         self.view.X = 30.0
         self.view.Y = 150.0
-        print("view created")
+        FreeCAD.ActiveDocument.recompute()
+
+        #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_()
+
+        print("DrawViewSection test: view created")
 
     def tearDown(self):
+        print("DrawViewSection test: finished")
         FreeCAD.closeDocument("TDSection")
 
     def testMakeDrawViewSection(self):
@@ -40,10 +53,21 @@ class DrawViewSectionTest(unittest.TestCase):
         section.Direction = (0.0, 1.0, 0.0)
         section.SectionNormal = (0.0, 1.0, 0.0)
         section.SectionOrigin = (5.0, 5.0, 5.0)
-        self.view.touch()
-        print("section created")
-
+        print("DrawViewSection test: section created")
         FreeCAD.ActiveDocument.recompute()
+
+        #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 = section.getVisibleEdges()
+        self.assertEqual(len(edges), 4, "DrawViewSection has wrong number of edges")
         self.assertTrue("Up-to-date" in section.State)