Layers unittest: isolate the depsgraph crash in individual tests

(and re-order the tests alphabetically)

tests/python/render_layer/CMakeLists.txt

@@ -56,15 +56,10 @@ macro(RENDER_LAYER_TEST test_name)
 	)
 endmacro()
 
-RENDER_LAYER_TEST(scene_write_read)
-RENDER_LAYER_TEST(scene_copy)
-RENDER_LAYER_TEST(layer_syncinc)
-RENDER_LAYER_TEST(layer_linking)
-RENDER_LAYER_TEST(collection_rename)
 RENDER_LAYER_TEST(active_collection)
-RENDER_LAYER_TEST(object_delete)
-RENDER_LAYER_TEST(link)
-RENDER_LAYER_TEST(operator_context)
+RENDER_LAYER_TEST(collection_rename)
+RENDER_LAYER_TEST(evaluation_visibility_a)
+RENDER_LAYER_TEST(evaluation_visibility_b)
 RENDER_LAYER_TEST(object_add_cylinder)
 RENDER_LAYER_TEST(object_add_empty)
 RENDER_LAYER_TEST(object_add_torus)
@@ -72,5 +67,12 @@ RENDER_LAYER_TEST(object_add_no_collection_cylinder)
 RENDER_LAYER_TEST(object_add_no_collection_empty)
 RENDER_LAYER_TEST(object_add_no_collection_torus)
 RENDER_LAYER_TEST(object_copy)
-RENDER_LAYER_TEST(evaluation_visibility_a)
-RENDER_LAYER_TEST(evaluation_visibility_b)
+RENDER_LAYER_TEST(object_delete)
+RENDER_LAYER_TEST(object_link_a)
+RENDER_LAYER_TEST(object_link_b)
+RENDER_LAYER_TEST(object_link_c)
+RENDER_LAYER_TEST(operator_context)
+RENDER_LAYER_TEST(layer_linking)
+RENDER_LAYER_TEST(layer_syncinc)
+RENDER_LAYER_TEST(scene_copy)
+RENDER_LAYER_TEST(scene_write_read)

tests/python/render_layer/render_layer_common.py

@@ -336,3 +336,9 @@ class RenderLayerTesting(unittest.TestCase):
         collection = layer.collections[0]
         self.assertEqual(len(collection.objects), 1, "New collection is empty")
 
+    def do_object_link(self, master_collection):
+        import bpy
+        self.assertEqual(master_collection.name, "Master Collection")
+        self.assertEqual(master_collection, bpy.context.scene.master_collection)
+        master_collection.objects.link(bpy.data.objects.new('object', None))
+

tests/python/render_layer/test_object_link_a.py

@@ -0,0 +1,40 @@
+# ./blender.bin --background -noaudio --python tests/python/render_layer/test_link.py -- --testdir="/data/lib/tests/"
+
+# ############################################################
+# Importing - Same For All Render Layer Tests
+# ############################################################
+
+import unittest
+
+import os, sys
+sys.path.append(os.path.dirname(__file__))
+
+from render_layer_common import *
+
+
+# ############################################################
+# Testing
+# ############################################################
+
+class UnitTesting(RenderLayerTesting):
+    def test_object_link_scene(self):
+        """
+        See if we can link objects
+        """
+        import bpy
+        master_collection = bpy.context.scene.master_collection
+        self.do_object_link(master_collection)
+
+
+# ############################################################
+# Main - Same For All Render Layer Tests
+# ############################################################
+
+if __name__ == '__main__':
+    import sys
+
+    extra_arguments = sys.argv[sys.argv.index("--") + 1:] if "--" in sys.argv else []
+    sys.argv = [__file__] + (sys.argv[sys.argv.index("--") + 2:] if "--" in sys.argv else [])
+
+    UnitTesting._extra_arguments = extra_arguments
+    unittest.main()

tests/python/render_layer/test_object_link_b.py

@@ -17,28 +17,14 @@ from render_layer_common import *
 # ############################################################
 
 class UnitTesting(RenderLayerTesting):
-    def do_link(self, master_collection):
-        import bpy
-        self.assertEqual(master_collection.name, "Master Collection")
-        self.assertEqual(master_collection, bpy.context.scene.master_collection)
-        master_collection.objects.link(bpy.data.objects.new('object', None))
-
-    def test_link_scene(self):
-        """
-        See if we can link objects
-        """
-        import bpy
-        master_collection = bpy.context.scene.master_collection
-        self.do_link(master_collection)
-
-    def test_link_context(self):
+    def test_object_link_context(self):
         """
         See if we can link objects via bpy.context.scene_collection
         """
         import bpy
         bpy.context.scene.render_layers.active_index = len(bpy.context.scene.render_layers) - 1
         master_collection = bpy.context.scene_collection
-        self.do_link(master_collection)
+        self.do_object_link(master_collection)
 
 
 # ############################################################

tests/python/render_layer/test_object_link_c.py

@@ -0,0 +1,43 @@
+# ./blender.bin --background -noaudio --python tests/python/render_layer/test_link.py -- --testdir="/data/lib/tests/"
+
+# ############################################################
+# Importing - Same For All Render Layer Tests
+# ############################################################
+
+import unittest
+
+import os, sys
+sys.path.append(os.path.dirname(__file__))
+
+from render_layer_common import *
+
+
+# ############################################################
+# Testing
+# ############################################################
+
+class UnitTesting(RenderLayerTesting):
+    def test_object_link_reload(self):
+        """
+        See if we can link objects and not crash
+        """
+        import bpy
+        master_collection = bpy.context.scene.master_collection
+        self.do_object_link(master_collection)
+
+        # force depsgraph to update
+        bpy.ops.wm.read_factory_settings()
+
+
+# ############################################################
+# Main - Same For All Render Layer Tests
+# ############################################################
+
+if __name__ == '__main__':
+    import sys
+
+    extra_arguments = sys.argv[sys.argv.index("--") + 1:] if "--" in sys.argv else []
+    sys.argv = [__file__] + (sys.argv[sys.argv.index("--") + 2:] if "--" in sys.argv else [])
+
+    UnitTesting._extra_arguments = extra_arguments
+    unittest.main()