Fix #134366: object.closest_point_on_mesh always returns no result

Introduced in 024d7d12e2

Pull Request: https://projects.blender.org/blender/blender/pulls/134377

source/blender/makesrna/intern/rna_object_api.cc

@@ -699,13 +699,14 @@ static void rna_Object_closest_point_on_mesh(Object *ob,
       copy_v3_v3(r_normal, nearest.no);
       *r_index = mesh_corner_tri_to_face_index(mesh_eval, nearest.index);
     }
+    else {
+      *r_success = false;
+
+      zero_v3(r_location);
+      zero_v3(r_normal);
+      *r_index = -1;
+    }
   }
-
-  *r_success = false;
-
-  zero_v3(r_location);
-  zero_v3(r_normal);
-  *r_index = -1;
 }
 
 static bool rna_Object_is_modified(Object *ob, Scene *scene, int settings)

tests/python/CMakeLists.txt

@@ -358,6 +358,11 @@ add_blender_test(
   --run-all-tests
 )
 
+add_blender_test(
+  object_api
+  --python ${TEST_PYTHON_DIR}/bl_object.py
+)
+
 # ------------------------------------------------------------------------------
 # MODIFIERS TESTS
 add_blender_test(

tests/python/bl_object.py

@@ -0,0 +1,21 @@
+import unittest
+
+import bpy
+from mathutils import Vector
+
+
+class TestObjectApi(unittest.TestCase):
+    def test_closest_point_on_mesh_of_default_cube(self):
+        bpy.ops.object.select_all(action='SELECT')
+        bpy.ops.object.delete(use_global=False)
+        bpy.ops.outliner.orphans_purge()
+        bpy.ops.mesh.primitive_cube_add()
+        ret_val = bpy.context.scene.objects[0].closest_point_on_mesh(Vector((0.0, 0.0, 2.0)))
+        self.assertTrue(ret_val[0])
+        self.assertEqual(ret_val[1], Vector((0.0, 0.0, 1.0)))
+
+
+if __name__ == '__main__':
+    import sys
+    sys.argv = [__file__] + (sys.argv[sys.argv.index("--") + 1:] if "--" in sys.argv else [])
+    unittest.main()