+ fix unit tests

src/Mod/PartDesign/InvoluteGearFeature.py

@@ -39,7 +39,8 @@ def makeInvoluteGear(name):
     '''makeInvoluteGear(name): makes an InvoluteGear'''
     obj = FreeCAD.ActiveDocument.addObject("Part::Part2DObjectPython",name)
     _InvoluteGear(obj)
-    _ViewProviderInvoluteGear(obj.ViewObject)
+    if FreeCAD.GuiUp:
+        _ViewProviderInvoluteGear(obj.ViewObject)
     #FreeCAD.ActiveDocument.recompute()
     return obj
 
@@ -243,5 +244,5 @@ class _InvoluteGearTaskPanel:
         FreeCADGui.ActiveDocument.resetEdit()
 
 
-         
-FreeCADGui.addCommand('PartDesign_InvoluteGear',_CommandInvoluteGear())
+if FreeCAD.GuiUp:
+    FreeCADGui.addCommand('PartDesign_InvoluteGear',_CommandInvoluteGear())

src/Mod/PartDesign/fcgear/fcgear.py

@@ -17,7 +17,7 @@
 
 from math import cos, sin, pi, acos, asin, atan, sqrt
 
-import FreeCAD, FreeCADGui, Part
+import FreeCAD, Part
 from FreeCAD import Base, Console
 import involute
 reload(involute)