Tests are missing depending on Python interpreter

[bfrv]

Type: Bug

Behaviour

Depending on the selected Python Interpreter, some tests are missing from the Test Explorer.

Steps to reproduce:

1. Start a Python project
2. Add tests (under /tests/ and /tests/subfolder)

import pytest

def test_method() -> None:
    pass

@pytest.mark.parametrize(
    "arg",
    (1, 2, 3)
)
def test_parametrized_method(arg: int) -> None:
    pass

class TestClass:
    def test_class_method(self) -> None:
        pass

    @pytest.mark.parametrize(
        "arg",
        (1, 2, 3)
    )
    async def test_parametrized_class_method(self, arg: int) -> None:
        pass

3. Open the VSCode Test Explorer
4. Switch between Python interpreters

Example 1: Poetry (3.12.3):

Note that all tests are showing as expected

Example 2: Conda (3.12.4):

Note that:

• test_method tests are missing
• test_parametrized_method tests are missing
• test_parametrized_class_method tests are missing
• The TestClass nodes are missing (test_class_method tests are displayed as children of the test_test.py nodes)

The Python Output panel does show that pytest picks up all tests

2024-10-31 13:04:12.320 [info] ============================= test session starts ==============================
platform linux -- Python 3.12.4, pytest-6.2.5, py-1.11.0, pluggy-1.5.0

2024-10-31 13:04:12.323 [info] rootdir: /home/bart/temp/pytest
plugins: asyncio-0.15.1, flaky-3.7.0, mypy-testing-0.0.12, cov-5.0.0, mock-3.14.0, datadir-1.5.0, anyio-3.7.1

2024-10-31 13:04:12.332 [info] collected 16 items

<Package tests>
  <Module test_test.py>
    <Function test_method>
    <Function test_parametrized_method[1]>
    <Function test_parametrized_method[2]>
    <Function test_parametrized_method[3]>
    <Class TestClass>
        <Function test_class_method>
        <Function test_parametrized_class_method[1]>
        <Function test_parametrized_class_method[2]>
        <Function test_parametrized_class_method[3]>
<Package subfolder>
  <Module test_test.py>
    <Function test_method>
    <Function test_parametrized_method[1]>

2024-10-31 13:04:12.332 [info]     <Function test_parametrized_method[2]>
    <Function test_parametrized_method[3]>
    <Class TestClass>
        <Function test_class_method>
        <Function test_parametrized_class_method[1]>
        <Function test_parametrized_class_method[2]>
        <Function test_parametrized_class_method[3]>

2024-10-31 13:04:12.332 [info] ---: test_parametrized_method

2024-10-31 13:04:12.332 [info] ---: test_parametrized_method
---: test_parametrized_method

2024-10-31 13:04:12.333 [info] ---: test_parametrized_class_method

2024-10-31 13:04:12.333 [info] ---: test_parametrized_class_method
---: test_parametrized_class_method

2024-10-31 13:04:12.333 [info] ---: test_parametrized_method

2024-10-31 13:04:12.333 [info] ---: test_parametrized_method
---: test_parametrized_method

2024-10-31 13:04:12.333 [info] ---: test_parametrized_class_method

2024-10-31 13:04:12.333 [info] ---: test_parametrized_class_method
---: test_parametrized_class_method

2024-10-31 13:04:12.334 [info] 
========================= 16 tests collected in 0.01s ==========================
<<<PYTHON-EXEC-OUTPUT

Diagnostic data

Extension version: 2024.16.1
VS Code version: Code 1.94.2 (384ff7382de624fb94dbaf6da11977bba1ecd427, 2024-10-09T16:08:44.566Z)
OS version: Linux x64 6.8.0-47-generic snap
Modes:

• Python version (& distribution if applicable, e.g. Anaconda): 3.12.3
• Type of virtual environment used (e.g. conda, venv, virtualenv, etc.): Poetry
• Value of the python.languageServer setting: Default

User Settings

languageServer: "Pylance"

testing
• pytestEnabled: true

Installed Extensions

Extension Name	Extension Id	Version
autoDocstring - Python Docstring Generator	njpwerner.autodocstring	0.6.1
Black Formatter	ms-python.black-formatter	2024.4.0
Dev Containers	ms-vscode-remote.remote-containers	0.389.0
Docker	ms-azuretools.vscode-docker	1.29.3
Even Better TOML	tamasfe.even-better-toml	0.19.2
GitLab Workflow	GitLab.gitlab-workflow	5.17.0
GitLens — Git supercharged	eamodio.gitlens	15.6.2
Insert Unicode	brunnerh.insert-unicode	0.15.1
JavaScript Debugger	ms-vscode.js-debug	1.94.0
JavaScript Debugger Companion Extension	ms-vscode.js-debug-companion	1.1.3
Kubernetes	ms-kubernetes-tools.vscode-kubernetes-tools	1.3.18
Pylance	ms-python.vscode-pylance	2024.10.1
Python	ms-python.python	2024.16.1
Python Debugger	ms-python.debugpy	2024.12.0
Python Environment Manager	donjayamanne.python-environment-manager	1.2.4
Remote - SSH	ms-vscode-remote.remote-ssh	0.115.0
Remote - SSH: Editing Configuration Files	ms-vscode-remote.remote-ssh-edit	0.87.0
Remote - Tunnels	ms-vscode.remote-server	1.5.2
Remote Development	ms-vscode-remote.vscode-remote-extensionpack	0.26.0
Remote Explorer	ms-vscode.remote-explorer	0.4.3
rust-analyzer	rust-lang.rust-analyzer	0.3.2162
SVG	jock.svg	1.5.4
Swagger Viewer	Arjun.swagger-viewer	3.1.2
Table Visualizer for JavaScript Profiles	ms-vscode.vscode-js-profile-table	1.0.10
Tasks Shell Input	augustocdias.tasks-shell-input	1.12.4
Vue - Official	Vue.volar	2.1.10
WSL	ms-vscode-remote.remote-wsl	0.88.5
YAML	redhat.vscode-yaml	1.15.0

System Info

Item	Value
CPUs	13th Gen Intel(R) Core(TM) i7-13700H (20 x 2300)
GPU Status	2d_canvas: unavailable_software canvas_oop_rasterization: disabled_off direct_rendering_display_compositor: disabled_off_ok gpu_compositing: disabled_software multiple_raster_threads: enabled_on opengl: disabled_off rasterization: disabled_software raw_draw: disabled_off_ok skia_graphite: disabled_off video_decode: disabled_software video_encode: disabled_software vulkan: disabled_off webgl: unavailable_software webgl2: unavailable_software webgpu: disabled_off webnn: disabled_off
Load (avg)	3, 3, 3
Memory (System)	31.02GB (7.07GB free)
Process Argv	--no-sandbox --force-user-env --crash-reporter-id 5610811c-82ac-49b0-bc5b-c52b6546f4c0
Screen Reader	no
VM	0%
DESKTOP_SESSION	ubuntu
XDG_CURRENT_DESKTOP	Unity
XDG_SESSION_DESKTOP	ubuntu
XDG_SESSION_TYPE	x11

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azure-dev_surveyonecf:30548226
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pythongtdpath:30769146
pythonnoceb:30805159
asynctok:30898717
pythonmypyd1:30879173
2e7ec940:31000449
pythontbext0:30879054
cppperfnew:31000557
dsvsc020:30976470
pythonait:31006305
dsvsc021:30996838
945dj816:31013170
dvdeprecation:31068756
dwnewjupyter:31046869
2f103344:31071589
impr_priority:31102340
nativerepl1:31139838
refactort:31108082
pythonrstrctxt:31112756
wkspc-onlycs-t:31132770
nativeloc2:31134642
wkspc-ranged-t:31151552
cf971741:31144450
iacca2:31156134
notype1cf:31157160
5fd0e150:31155592
dwcopilot:31170013

[eleanorjboyd]

will try this- can you confirm that pytest is installed in both environments and there are no difference in pytest plugins?