Option to override user's defaults. Needed for unit testing.

FlatCAMApp.py

@@ -1728,7 +1728,9 @@ class App(QtCore.QObject):
 
             :type app_obj_: App
             """
-            assert isinstance(app_obj_, App)
+            assert isinstance(app_obj_, App), \
+                "Initializer expected App, got %s" % type(app_obj_)
+
             self.progress.emit(10)
 
             try:
@@ -2151,7 +2153,8 @@ class App(QtCore.QObject):
         
                 # Object initialization function for app.new_object()
                 def job_init(job_obj, app_obj):
-                    assert isinstance(job_obj, FlatCAMCNCjob)
+                    assert isinstance(job_obj, FlatCAMCNCjob), \
+                        "Initializer expected FlatCAMCNCjob, got %s" % type(job_obj)
                     
                     job_obj.z_cut = kwa["drillz"]
                     job_obj.z_move = kwa["travelz"]
@@ -2196,7 +2199,8 @@ class App(QtCore.QObject):
             if obj is None:
                 return "Object not found: %s" % name
 
-            assert isinstance(obj, FlatCAMExcellon)
+            assert isinstance(obj, FlatCAMExcellon), \
+                "Expected a FlatCAMExcellon object, got %s" % type(obj)
 
             try:
                 success, msg = obj.generate_milling(**kwa)
@@ -2225,7 +2229,8 @@ class App(QtCore.QObject):
             if obj is None:
                 return "Object not found: %s" % obj_name
 
-            assert isinstance(obj, Geometry)
+            assert isinstance(obj, Geometry), \
+                "Expected a Geometry, got %s" % type(obj)
 
             obj_exteriors = obj.get_exteriors()
 
@@ -2261,7 +2266,8 @@ class App(QtCore.QObject):
             if obj is None:
                 return "Object not found: %s" % obj_name
 
-            assert isinstance(obj, Geometry)
+            assert isinstance(obj, Geometry), \
+                "Expected a Geometry, got %s" % type(obj)
 
             obj_interiors = obj.get_interiors()
 
@@ -2301,7 +2307,8 @@ class App(QtCore.QObject):
             if obj is None:
                 return "Object not found: %s" % name
 
-            assert isinstance(obj, FlatCAMGerber)
+            assert isinstance(obj, FlatCAMGerber), \
+                "Expected a FlatCAMGerber, got %s" % type(obj)
 
             try:
                 obj.isolate(**kwa)

FlatCAMDraw.py

@@ -574,7 +574,9 @@ class FCCopy(FCMove):
 ########################
 class FlatCAMDraw(QtCore.QObject):
     def __init__(self, app, disabled=False):
-        assert isinstance(app, FlatCAMApp.App)
+        assert isinstance(app, FlatCAMApp.App), \
+            "Expected the app to be a FlatCAMApp.App, got %s" % type(app)
+
         super(FlatCAMDraw, self).__init__()
 
         self.app = app
@@ -767,9 +769,15 @@ class FlatCAMDraw(QtCore.QObject):
                 self.add_shape(subshape)
             return
 
-        assert isinstance(shape, DrawToolShape)
-        assert shape.geo is not None
-        assert (isinstance(shape.geo, list) and len(shape.geo) > 0) or not isinstance(shape.geo, list)
+        assert isinstance(shape, DrawToolShape), \
+            "Expected a DrawToolShape, got %s" % type(shape)
+
+        assert shape.geo is not None, \
+            "Shape object has empty geometry (None)"
+
+        assert (isinstance(shape.geo, list) and len(shape.geo) > 0) or \
+               not isinstance(shape.geo, list), \
+            "Shape objects has empty geometry ([])"
 
         if isinstance(shape, DrawToolUtilityShape):
             self.utility.append(shape)
@@ -825,7 +833,8 @@ class FlatCAMDraw(QtCore.QObject):
         :param fcgeometry: FlatCAMGeometry
         :return: None
         """
-        assert isinstance(fcgeometry, Geometry)
+        assert isinstance(fcgeometry, Geometry), \
+            "Expected a Geometry, got %s" % type(fcgeometry)
 
         self.deactivate()
 

FlatCAMObj.py

@@ -670,7 +670,8 @@ class FlatCAMExcellon(FlatCAMObj, Excellon):
             "spindlespeed": self.ui.spindlespeed_entry
         })
 
-        assert isinstance(self.ui, ExcellonObjectUI)
+        assert isinstance(self.ui, ExcellonObjectUI), \
+            "Expected a ExcellonObjectUI, got %s" % type(self.ui)
         self.ui.plot_cb.stateChanged.connect(self.on_plot_cb_click)
         self.ui.solid_cb.stateChanged.connect(self.on_solid_cb_click)
         self.ui.generate_cnc_button.clicked.connect(self.on_create_cncjob_button_click)
@@ -718,7 +719,8 @@ class FlatCAMExcellon(FlatCAMObj, Excellon):
                 return False, "Error: Milling tool is larger than hole."
 
         def geo_init(geo_obj, app_obj):
-            assert isinstance(geo_obj, FlatCAMGeometry)
+            assert isinstance(geo_obj, FlatCAMGeometry), \
+                "Initializer expected a FlatCAMGeometry, got %s" % type(geo_obj)
             app_obj.progress.emit(20)
 
             geo_obj.solid_geometry = []
@@ -763,7 +765,8 @@ class FlatCAMExcellon(FlatCAMObj, Excellon):
 
         # Object initialization function for app.new_object()
         def job_init(job_obj, app_obj):
-            assert isinstance(job_obj, FlatCAMCNCjob)
+            assert isinstance(job_obj, FlatCAMCNCjob), \
+                "Initializer expected a FlatCAMCNCjob, got %s" % type(job_obj)
 
             app_obj.progress.emit(20)
             job_obj.z_cut = self.options["drillz"]
@@ -888,7 +891,8 @@ class FlatCAMCNCjob(FlatCAMObj, CNCjob):
 
         FlatCAMApp.App.log.debug("FlatCAMCNCJob.set_ui()")
 
-        assert isinstance(self.ui, CNCObjectUI)
+        assert isinstance(self.ui, CNCObjectUI), \
+            "Expected a CNCObjectUI, got %s" % type(self.ui)
 
         self.form_fields.update({
             "plot": self.ui.plot_cb,
@@ -1027,7 +1031,8 @@ class FlatCAMGeometry(FlatCAMObj, Geometry):
 
         FlatCAMApp.App.log.debug("FlatCAMGeometry.set_ui()")
 
-        assert isinstance(self.ui, GeometryObjectUI)
+        assert isinstance(self.ui, GeometryObjectUI), \
+            "Expected a GeometryObjectUI, got %s" % type(self.ui)
 
         self.form_fields.update({
             "plot": self.ui.plot_cb,
@@ -1084,7 +1089,8 @@ class FlatCAMGeometry(FlatCAMObj, Geometry):
 
         # Initializes the new geometry object
         def gen_paintarea(geo_obj, app_obj):
-            assert isinstance(geo_obj, FlatCAMGeometry)
+            assert isinstance(geo_obj, FlatCAMGeometry), \
+                "Initializer expected a FlatCAMGeometry, got %s" % type(geo_obj)
             #assert isinstance(app_obj, App)
 
             if self.options["paintmethod"] == "seed":
@@ -1156,7 +1162,9 @@ class FlatCAMGeometry(FlatCAMObj, Geometry):
         # Object initialization function for app.new_object()
         # RUNNING ON SEPARATE THREAD!
         def job_init(job_obj, app_obj):
-            assert isinstance(job_obj, FlatCAMCNCjob)
+            assert isinstance(job_obj, FlatCAMCNCjob), \
+                "Initializer expected a FlatCAMCNCjob, got %s" % type(job_obj)
+
             # Propagate options
             job_obj.options["tooldia"] = tooldia
 

FlatCAMProcess.py

@@ -115,7 +115,8 @@ class FCVisibleProcessContainer(QtCore.QObject, FCProcessContainer):
     something_changed = QtCore.pyqtSignal()
 
     def __init__(self, view):
-        assert isinstance(view, FlatCAMActivityView)
+        assert isinstance(view, FlatCAMActivityView), \
+            "Expected a FlatCAMActivityView, got %s" % type(view)
 
         FCProcessContainer.__init__(self)
         QtCore.QObject.__init__(self)

GUIElements.py

@@ -249,7 +249,8 @@ class VerticalScrollArea(QtGui.QScrollArea):
 class OptionalInputSection():
 
     def __init__(self, cb, optinputs):
-        assert isinstance(cb, FCCheckBox)
+        assert isinstance(cb, FCCheckBox), \
+            "Expected an FCCheckBox, got %s" % type(cb)
 
         self.cb = cb
         self.optinputs = optinputs

camlib.py

@@ -379,7 +379,8 @@ class Geometry(object):
         """
 
         log.debug("camlib.clear_polygon()")
-        assert type(polygon) == Polygon or type(polygon) == MultiPolygon
+        assert type(polygon) == Polygon or type(polygon) == MultiPolygon, \
+            "Expected a Polygon or MultiPolygon, got %s" % type(polygon)
 
         ## The toolpaths
         # Index first and last points in paths
@@ -2717,7 +2718,8 @@ class CNCjob(Geometry):
         :param tolerance:
         :return: None
         """
-        assert isinstance(geometry, Geometry)
+        assert isinstance(geometry, Geometry), \
+            "Expected a Geometry, got %s" % type(geometry)
         log.debug("generate_from_geometry_2()")
 
         ## Flatten the geometry