Add Operator tests #84999

New Issue

Himanshi Kalra · 2021-01-23T20:12:17+01:00

Himanshi Kalra commented

2021-01-23 20:12:17 +01:00

Introduction

This task tracks progress of regression tests for mesh operators. A regression takes a test mesh, applies an operator on it and compares the result with a reference mesh (typically called expected object).
Note: Multiple developers can work on this task after discussing with other subscribers/assignee for clarification.

Adding a new test

Define the test case in the python file blender/tests/python/operators.py
Create a test mesh and an expected mesh in lib/tests/modeling/operators.blend
Make sure the test case can fail.
The wiki explains the steps in much more details: Python Tests

Style Guidelines to Follow for the Blend file:

Collection Name should be same as Operator Name
Add tests in alphabetical order (Collection Names).
Keep the test objects in sync with respect to their relative alphabetical positioning between other objects.

Some examples:
D10218 (remove doubles)
22a8a3b214 (Deform tests)
8373f497b (Curve tests)

Test cases

First screening of operators can be find in this sheet link for insights.
Add new tests for operators from the list below, they can be accessed by bpy.ops.mesh in the python console in Blender. For documentation, please refer here

Operator	Typical case	Further cases	Comments
average_normals	D10865
beautify_fill	D10865
bevel	x		tests are in `bevel_regression.blend` and `bevel_operator.py`
bisect	x	TODO: #87863 Add test case from the bug file itself
blend_from_shape	x
bridge_edge_loops	x
colors_reverse
colors_rotate
convex_hull	D11200
customdata_custom_splitnormals_add
customdata_custom_splitnormals_clear
customdata_mask_clear
customdata_skin_add
customdata_skin_clear
decimate	x
delete	x	delete Faces/Verts/Edges
delete_edgeloop	x	delete Verts/Edges
delete_loose	x
dissolve_degenerate	x
dissolve_edges	x
dissolve_faces	x
dissolve_limited	D15187
dissolve_mode	D15187
dissolve_verts	x
dupli_extrude_cursor			Requires user input, cannot test.
duplicate	x
duplicate_move
edge_collapse
edge_face_add	x
edge_rotate	x
edge_split	x
edgering_select			Requires user input, cannot test.
edges_select_sharp	D10400
extrude_context			Requires user input, cannot test.
extrude_context_move			Requires user input, cannot test.
extrude_edges_indiv			Requires user input, cannot test.
extrude_edges_move			Requires user input, cannot test.
extrude_faces_indiv			Requires user input, cannot test.
extrude_faces_move			Requires user input, cannot test.
extrude_region			Requires user input, cannot test.
extrude_region_move			Requires user input, cannot test.
extrude_region_shrink_fatten			Requires user input, cannot test.
extrude_repeat			Requires user input, cannot test.
extrude_vertices_move			Requires user input, cannot test.
extrude_verts_indiv			Requires user input, cannot test.
face_make_planar	x
face_split_by_edges	x
faces_mirror_uv
faces_select_linked_flat	x
faces_shade_flat	D10893	Not a real test, appearance can't be tested
faces_shade_smooth	D10893	Not a real test, appearance can't be tested
fill	x
fill_grid	x
fill_holes	x
flip_normals	D11802
hide	D11798
inset	x
intersect	x
intersect_boolean	x	x	See `boolean_operator.py`
knife_project
knife_tool
loop_multi_select	D10400
loop_select
loop_to_region
loopcut
loopcut_slide
mark_freestyle_edge
mark_freestyle_face
mark_seam	D10893
mark_sharp
merge	D11083
merge_normals	D15187
mod_weighted_strength
normals_make_consistent
normals_tools
offset_edge_loops
offset_edge_loops_slide
paint_mask_extract
paint_mask_slice
point_normals
poke	D11200
polybuild_delete_at_cursor
polybuild_dissolve_at_cursor
polybuild_extrude_at_cursor_move
polybuild_face_at_cursor
polybuild_face_at_cursor_move
polybuild_split_at_cursor
polybuild_split_at_cursor_move
polybuild_transform_at_cursor
polybuild_transform_at_cursor_move
quads_convert_to_tris
region_to_loop
remove_doubles	D10218
reveal	D10723		Operator does not change mesh
rip	D11200
rip_edge
rip_edge_move
rip_move
screw
select_all	D10400
select_axis			Cannot be tested. Needs active vert selection
select_face_by_sides	D10400
select_interior_faces	D10400
select_less	D10400
select_linked	D10400
select_linked_pick			Cannot be tested. Needs user input
select_loose	D10839
select_mirror	D10839
select_mode	x		Used by framework, so implicitly tested with all other operators
select_more	D10839
select_next_item
select_non_manifold
select_nth	D10893
select_prev_item
select_random
select_similar
select_similar_region
select_ungrouped
separate
set_normals_from_faces
shape_propagate_to_all
shortest_path_pick
shortest_path_select
smoothen_normals
solidify	D11200
sort_elements	D10865
spin	D10865
split	D11200
split_normals
subdivide	D10865
subdivide_edgering	D11798		Cannot be tested. Does not produce reproducible results
symmetrize	D11083
symmetry_snap	D11798
tris_convert_to_quads	D11798
unsubdivide	D10893	Added test cases for the bug #87259
uv_texture_add	D11798
uv_texture_remove	D11798
uvs_reverse	D11798
uvs_rotate	D11798
vert_connect	D11200
vert_connect_concave	D11798
vert_connect_nonplanar	D11798
vert_connect_path	D10893
vertex_color_add	D11798
vertex_color_remove	D11798
vertices_smooth	D11200
vertices_smooth_laplacian	D11798
wireframe	D11798

Himanshi Kalra commented

2021-01-23 20:12:17 +01:00

Changed status from 'Needs Triage' to: 'Confirmed'

Himanshi Kalra commented

2021-01-23 20:12:17 +01:00

Added subscriber: @Calra

Habib Gahbiche commented

2021-01-30 17:11:29 +01:00

Added subscriber: @zazizizou

Habib Gahbiche self-assigned this 2021-02-14 14:13:31 +01:00

Shinaola Agbede commented

2021-02-17 00:00:45 +01:00

Added subscriber: @sagbede

Peter Carter commented

2021-03-05 22:15:25 +01:00

Added subscriber: @pjc7287

Rohan Gupta commented

2021-03-10 12:31:34 +01:00

Added subscriber: @Rohan-cod

Rohan Gupta commented

2021-03-10 12:31:34 +01:00

I hope everyone is safe and in good health in the wake of prevailing COVID-19.
My name is Rohan Gupta and I am a 3rd-year Computer Science undergraduate student at Shri Mata Vaishno Devi University. I have been working with Python for a couple of years now and have in-depth knowledge of it. I look forward to contributing to Blender Foundation as part of this year's GSoC.
My Linkedin Profile:- https://www.linkedin.com/in/rohang4837b4124/

I hope everyone is safe and in good health in the wake of prevailing COVID-19. My name is Rohan Gupta and I am a 3rd-year Computer Science undergraduate student at Shri Mata Vaishno Devi University. I have been working with Python for a couple of years now and have in-depth knowledge of it. I look forward to contributing to Blender Foundation as part of this year's GSoC. My Linkedin Profile:- https://www.linkedin.com/in/rohang4837b4124/

Habib Gahbiche commented

2021-03-10 19:19:06 +01:00

Hi @Rohan-cod, thanks for interest. This task is not the right place to discuss GSoC, but feel free to discuss your ideas on blender.chat or devtalk.blender.org. You can also reach out to me directly if you are interested in contributing to this task or automated tests with Python in general.

Shinaola Agbede commented

2021-03-10 21:48:07 +01:00

Hello, Habib. Sorry to bother,

I am interested in contributing to this task. I am still very new to this but I hope that I can still be of help. What is a good way to get started on this task?

Hello, Habib. Sorry to bother, I am interested in contributing to this task. I am still very new to this but I hope that I can still be of help. What is a good way to get started on this task?

Habib Gahbiche commented

2021-03-10 22:49:04 +01:00

Hi Shinaola, https://wiki.blender.org/wiki/Developer_Intro/Overview is a good place to start. After going through that, the steps in the description should make more sense :) If not, you can ask more specific questions here

Habib Gahbiche removed their assignment 2021-03-30 19:31:01 +02:00

Akshat Dixit (:baka) commented

2021-04-02 19:21:09 +02:00

Added subscriber: @baka

Akshat Dixit (:baka) commented

2021-04-02 19:21:09 +02:00

@zazizizou Hello Habib, I was trying to figure out how to add the test cases that require user inputs. After a little experimenting, I noticed that in operators like extrude we can take a set of two objects (mouse-pointer-aid-object, classic-old-object) as test and expected objects. The position of one (mouse-pointer-aid-object) will represent the final position of the mouse where the click was made and the other will serve as an object on which the operator should be applied. And then we can simply call bpy.ops.mesh.extrude_region_move like function with TRANSFORM_OT_translate={"value":(x, y, z), where (x, y, z) represents the value of of the mouse-pointer-object-position.

Please give on views on this (This is helping me write my gsoc proposal)!

@zazizizou Hello Habib, I was trying to figure out how to add the test cases that require user inputs. After a little experimenting, I noticed that in operators like extrude we can take a set of two objects (mouse-pointer-aid-object, classic-old-object) as test and expected objects. The position of one (mouse-pointer-aid-object) will represent the final position of the mouse where the click was made and the other will serve as an object on which the operator should be applied. And then we can simply call `bpy.ops.mesh.extrude_region_move` like function with `TRANSFORM_OT_translate={"value":(x, y, z), ` where (x, y, z) represents the value of of the mouse-pointer-object-position. Please give on views on this (This is helping me write my gsoc proposal)!

Habib Gahbiche commented

2021-04-02 20:13:50 +02:00

Hi @baka, cool! It's nice to hear you're interested. There are indeed some similar workarounds for modifiers tests (see tests for deform modifiers in tests/modeling/modifiers.blend), so if it works, it's a good idea. I think it's better to continue GSoC discussion at blender.chat though, if that's ok for you.

Hi @baka, cool! It's nice to hear you're interested. There are indeed some similar workarounds for modifiers tests (see tests for deform modifiers in `tests/modeling/modifiers.blend`), so if it works, it's a good idea. I think it's better to continue GSoC discussion at blender.chat though, if that's ok for you.

Himanshu Chauhan commented

2021-04-03 09:28:55 +02:00

Added subscriber: @himanshu_chauhan

Himanshu Chauhan commented

2021-04-03 09:36:27 +02:00

Hey everyone, I am very new to whole open source thing and blender development, I have just built blender from source code, and now I would like to tackle my good first issue, and I have chosen this task, but I am not exactly sure what I have to do, can anyone guide me through. So far I have only understood the idea that we have to create two meshes, one is expected mesh, and one is test mesh on which we have to apply operators through python.

Ankit Meel commented

2021-04-03 12:44:21 +02:00

Added subscriber: @ankitm

Ankit Meel commented

2021-04-03 12:44:21 +02:00

Please read the wiki and the previous patches/commits linked. If there's a specific question/ part where you're stuck, let us know, here or at https://blender.chat

Maor Amar commented

2021-04-26 03:42:34 +02:00

Added subscriber: @MaorA

Maor Amar commented

2021-04-26 03:42:34 +02:00

I have added tests for symmetrize and merge. D11083 . Let me know if the diff is submitted properly.

I have added tests for symmetrize and merge. [D11083](https://archive.blender.org/developer/D11083) . Let me know if the diff is submitted properly.

Rohan Gupta commented

2021-09-05 12:29:38 +02:00

Removed subscriber: @Rohan-cod

Robert Moore commented

2021-09-08 15:13:11 +02:00

Added subscriber: @rdmo

blender-admin commented

2021-11-30 07:35:57 +01:00

This issue was referenced by 7168a4fa5c

This issue was referenced by 7168a4fa5c785c29483947ce60ac797e4b9c1bfc

Pratik Borhade commented

2022-06-12 12:59:05 +02:00

Added subscriber: @PratikPB2123

Rateeb Riyasat commented

2022-09-26 20:09:59 +02:00

Added subscriber: @rateeb-riyasat

Rateeb Riyasat commented

2022-09-26 20:09:59 +02:00

Hey I was working on screw edge for testing and I realized the center parameter is in global coordinates, which might result in improper testing as the newly generated mesh after the operation is applied will be different depending on the position of the mesh, which could change as new operators are added.

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Add Operator tests #84999

Introduction

Adding a new test

Test cases