Test explorer has no icons or buttons when using WSL remote

[karthiknadig]

Environment data

• VS Code version: 1.37.1
• Extension version (available under the Extensions sidebar): 2019.8.30787
• OS and version: Windows/ WSL Ubuntu (bionic)
• Python version (& distribution if applicable, e.g. Anaconda): 3.6
• Type of virtual environment used (N/A | venv | virtualenv | conda | ...): N/A
• Relevant/affected Python packages and their versions: pytest
• Jedi or Language Server? (i.e. what is "python.jediEnabled" set to; more info How to update the language server to the latest stable version #3977): LS

Expected behaviour

Should be able to run tests from Test explorer and see the status of the tests

Actual behaviour

No status icons or buttons after test discovery.

Steps to reproduce:

1. Clone this project: https://github.com/karthiknadig/multievent
2. Open the workspace in WSL
3. After test discovery is done, Run tests using the UI

Also Run current test file or the code lenses causes this error. This might be relevant.

============================= test session starts ==============================
platform linux -- Python 3.6.8, pytest-5.1.1, py-1.8.0, pluggy-0.12.0
rootdir: /mnt/c/GIT/multievent, inifile: pytest.ini
collected 20 items

tests/test_common.py ....................                                [100%]

--------------- generated xml file: /tmp/tmp-53x95u13c31Xjx.xml ----------------
============================== 20 passed in 0.18s ==============================
Error: TypeError: Cannot read property '$' of undefined

[luabud]

The second error is related to #6990

[DonJayamanne]

Possibly a dup of microsoft/vscode#78651

[karrtikr]

@karthiknadig Please provide Output from Console under the Developer Tools panel (toggle Developer Tools on under Help; turn on source maps to make any tracebacks be useful by running Enable source map support for extension debugging)

I expect to see something like,

open-change.svg:1 Failed to load resource: net::ERR_NOT_IMPLEMENTED
repl.svg:1 Failed to load resource: net::ERR_NOT_IMPLEMENTED
refresh.svg:1 Failed to load resource: net::ERR_NOT_IMPLEMENTED
debug.svg:1 Failed to load resource: net::ERR_NOT_IMPLEMENTED
run-tests.svg:1 Failed to load resource: net::ERR_NOT_IMPLEMENTED

If that is the case, this issue is a dup.

[karthiknadig]

looks like with VSC 1.38.0 , and updated WSL this is fixed: