Coverage ignores report options

[gokay05]

Type: Bug

Behaviour

Running tests with coverage ignores any coverage settings aside from ones the ones for the run.

I took a quick look and it is because the extension runs the tests with all the arguments, then in python_files/vscode_pytest/__init__.py, the coverage data gets loaded in a separate process without any of the arguments. So any arguments for report, or any plugins that configure them, get ignored.

Steps to reproduce:

1. Add exclude_lines = [] to coverage settings in or pyproject.toml. Now, any lines with # pragma: no cover should not be ignored.
2. Add # pragma: no cover to a line of code and run the tests with coverage. If you do this from a regular python script, you will get the line with pragma not excluded from coverage. However, the vscode extension does not do this and the line of code should still be included in the measurement.

Extension version: 2025.6.1
VS Code version: Code 1.100.2 (848b80aeb52026648a8ff9f7c45a9b0a80641e2e, 2025-05-14T21:47:40.416Z)
OS version: Windows_NT x64 10.0.19043
Modes:

• Python version (& distribution if applicable, e.g. Anaconda): 3.13.3
• 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
a-file-icon-vscode	ato	2.0.1
Bookmarks	ale	13.5.0
change-case	wma	1.0.0
color-highlight	nau	2.8.0
copilot	Git	1.322.0
copilot-chat	Git	0.27.1
csv-to-table	php	1.4.1
debugpy	ms-	2025.8.0
dupchecker	jia	0.1.7
even-better-toml	tam	0.21.2
folder-path-color	Vis	0.0.15
git-graph	mhu	1.30.0
gokay-dark	Gok	0.0.16
intellicode-api-usage-examples	Vis	0.2.9
js-debug	ms-	1.100.1
js-debug-companion	ms-	1.1.3
jsonhero-vscode	JSO	0.1.4
one-hunter	Rai	1.4.0
python	ms-	2025.6.1
rainbow-csv	mec	3.19.0
ruff	cha	2025.22.0
semanticdiff	sem	0.10.0
shellcheck	tim	0.37.7
sourcery	sou	1.36.0
tensorboard	ms-	2023.10.1002992421
vscode-github-actions	git	0.27.1
vscode-icons	vsc	12.13.0
vscode-js-profile-table	ms-	1.0.10
vscode-markdownlint	Dav	0.59.0
vscode-peacock	joh	4.2.2
vscode-pylance	ms-	2025.5.1
vscode-theme	Gok	0.0.1
vscode-yaml	red	1.18.0
vscodeintellicode	Vis	1.3.2

System Info

Item	Value
CPUs	11th Gen Intel(R) Core(TM) i7-11850H @ 2.50GHz (16 x 2496)
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 vulkan: disabled_off webgl: enabled webgl2: enabled webgpu: enabled webnn: disabled_off
Load (avg)	undefined
Memory (System)	31.71GB (11.02GB free)
Process Argv
Screen Reader	no
VM	0%

[gokay05]

I added --cov-report=html to python.testing.pytestArgs and in the output of that, you can see that the pragma line is not excluded. But VSCode still excludes the line from the coverage.