Running tests with coverage "hangs" after all tests are done

[AlexanderPodorov]

Type: Performance Issue

Behaviour

When I run pytest with coverage via VSCode UI, I see the testing is still ongoing, however all tests have been executed successfully.

It works in v2024.22.0, but does not work in v2024.22.1 and a couple pre-release versions I've tried so far.

Steps to reproduce:

1. Install v2024.22.1 and run pytest with coverage via VSCode UI

Diagnostic data

Output for Python in the Output panel (View→Output, change the drop-down the upper-right of the Output panel to Python)

XXX

Extension version: 2024.22.1
VS Code version: Code 1.96.2 (Universal) (fabdb6a30b49f79a7aba0f2ad9df9b399473380f, 2024-12-19T10:22:47.216Z)
OS version: Darwin arm64 22.1.0
Modes:

• Python version (& distribution if applicable, e.g. Anaconda): 3.12.5
• Type of virtual environment used (e.g. conda, venv, virtualenv, etc.): Venv
• Value of the python.languageServer setting: Default

User Settings

languageServer: "Pylance"

testing
• pytestArgs: "<placeholder>"
• pytestEnabled: true

Installed Extensions

Extension Name	Extension Id	Version
Better Jinja	samuelcolvin.jinjahtml	0.20.0
ESLint	dbaeumer.vscode-eslint	3.0.10
Even Better TOML	tamasfe.even-better-toml	0.21.2
JavaScript Debugger	ms-vscode.js-debug	1.96.0
JavaScript Debugger Companion Extension	ms-vscode.js-debug-companion	1.1.3
Jupyter	ms-toolsai.jupyter	2024.11.0
Jupyter Cell Tags	ms-toolsai.vscode-jupyter-cell-tags	0.1.9
Jupyter Keymap	ms-toolsai.jupyter-keymap	1.1.2
Jupyter Notebook Renderers	ms-toolsai.jupyter-renderers	1.0.21
Jupyter Slide Show	ms-toolsai.vscode-jupyter-slideshow	0.1.6
Live Preview	ms-vscode.live-server	0.4.15
Live Server	ritwickdey.LiveServer	5.7.9
Markdown All in One	yzhang.markdown-all-in-one	3.6.2
Markdown Emoji	bierner.markdown-emoji	0.3.1
Markdown Preview Mermaid Support	bierner.markdown-mermaid	1.27.0
Pylance	ms-python.vscode-pylance	2024.12.1
Python	ms-python.python	2024.22.1
Python Debugger	ms-python.debugpy	2024.14.0
Ruff	charliermarsh.ruff	2024.56.0
Sort lines	Tyriar.sort-lines	1.12.0
SQLTools	mtxr.sqltools	0.28.3
SQLTools PostgreSQL/Cockroach Driver	mtxr.sqltools-driver-pg	0.5.4
Table Visualizer for JavaScript Profiles	ms-vscode.vscode-js-profile-table	1.0.10

System Info

Item	Value
CPUs	Apple M1 Pro (10 x 2400)
GPU Status	2d_canvas: enabled canvas_oop_rasterization: enabled_on direct_rendering_display_compositor: disabled_off_ok gpu_compositing: enabled multiple_raster_threads: enabled_on opengl: enabled_on rasterization: enabled raw_draw: disabled_off_ok skia_graphite: disabled_off video_decode: enabled video_encode: enabled webgl: enabled webgl2: enabled webgpu: enabled webnn: disabled_off
Load (avg)	3, 4, 4
Memory (System)	16.00GB (0.55GB free)
Process Argv	--crash-reporter-id b18eb1dd-5763-4eb9-9747-ba339864022c
Screen Reader	no
VM	0%

Process Info

CPU %	Mem MB	   PID	Process
   18	   213	 98044	code main
    0	    66	 98048	   gpu-process
    0	    33	 98049	   utility-network-service
    0	   311	 98051	window [1] (.env — versatrans-api)
    0	    82	 98347	shared-process
    0	    49	 98381	ptyHost
    0	     0	  2874	     /bin/zsh -i
    0	     0	  3226	     /bin/zsh -i
    0	     0	  3613	     /bin/zsh -il
    0	     0	  4582	     /bin/zsh -i
    0	     0	  4717	     /bin/zsh -i
    0	     0	  4996	     /bin/zsh -i
    0	     0	  5131	     /bin/zsh -i
    0	     0	  5484	     /bin/zsh -i
    0	     0	  5619	     /bin/zsh -i
    0	     0	  5765	     /bin/zsh -i
    0	     0	  5901	     /bin/zsh -i

Workspace Info

|  Window (.env — versatrans-api)
|    Folder (versatrans-api): 13507 files
|      File types: pyc(5397) py(4318) pyi(286) txt(93) dylib(87) typed(66)
|                  pyx(65) h(59) so(58) f90(55)
|      Conf files: settings.json(1);

A/B Experiments

vsliv368:30146709
vspor879:30202332
vspor708:30202333
vspor363:30204092
vscod805cf:30301675
binariesv615:30325510
vsaa593:30376534
py29gd2263:31024239
c4g48928:30535728
azure-dev_surveyone:30548225
vscrpc:30673769
2i9eh265:30646982
962ge761:30959799
pythonnoceb:30805159
pythonmypyd1:30879173
2e7ec940:31000449
pythontbext0:30879054
cppperfnew:31000557
dsvsc020:30976470
pythonait:31006305
dsvsc021:30996838
dvdeprecation:31068756
dwnewjupytercf:31046870
newcmakeconfigv2:31071590
nativerepl2:31139839
pythonrstrctxt:31112756
nativeloc2:31192216
cf971741:31144450
iacca1:31171482
notype1:31157159
5fd0e150:31155592
dwcopilot:31170013
stablechunks:31184530
6074i472:31201624

[AlexanderPodorov]

See a couple of screenshots for the better understanding

[karthiknadig]

Try the latest pre-release from today. We have a fix for this in it.

[AlexanderPodorov]

Confirmed, the issue was solved in the latest pre-release version 2024.23.2025010701