Layers / Depsgraph: Unittesting for selection and visibility evaluation

tests/python/render_layer/test_evaluation_selectability_a.py

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+# ############################################################
+# Importing - Same For All Render Layer Tests
+# ############################################################
+
+import unittest
+import os
+import sys
+
+sys.path.append(os.path.dirname(__file__))
+from render_layer_common import *
+
+
+# ############################################################
+# Testing
+# ############################################################
+
+class UnitTesting(RenderLayerTesting):
+    def test_selectability(self):
+        """
+        See if the depsgraph evaluation is correct
+        """
+        import bpy
+
+        scene = bpy.context.scene
+        cube = bpy.data.objects.new('guinea pig', bpy.data.meshes.new('mesh'))
+
+        layer = scene.render_layers.new('Selectability Test')
+        layer.collections.unlink(layer.collections[0])
+        scene.render_layers.active = layer
+
+        scene_collection_mom = scene.master_collection.collections.new("Mom")
+        scene_collection_kid = scene_collection_mom.collections.new("Kid")
+
+        scene_collection_kid.objects.link(cube)
+
+        layer_collection_mom = layer.collections.link(scene_collection_mom)
+        layer_collection_kid = layer.collections.link(scene_collection_kid)
+
+        layer_collection_mom.hide = True
+        bpy.context.scene.update()  # update depsgraph
+        cube.select_set('SELECT')
+
+        self.assertTrue(cube.visible_get(), "Cube should be visible")
+        self.assertTrue(cube.select_get(), "Cube should be selected")
+
+
+# ############################################################
+# 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()