Crash running tests: "Cannot read property '$' of undefined"

[mfeif]

Issue Type: Bug

running tests manually from the same virtualenv works; in fact, it works inside VSCode too, but it throws an error, perhaps as it tries to report back to the engine?

python /Users/mjf/.vscode/extensions/ms-python.python-2019.9.34911/pythonFiles/testing_tools/run_adapter.py discover pytest -- -s --cache-clear tests
python /Users/mjf/.vscode/extensions/ms-python.python-2019.9.34911/pythonFiles/testing_tools/run_adapter.py discover pytest -- -s --cache-clear tests
============================= test session starts ==============================
platform darwin -- Python 3.7.2, pytest-5.1.2, py-1.8.0, pluggy-0.13.0
rootdir: /Users/mjf/dev/twinkler
collected 36 items

tests/color/test_color_math.py ....                                      [ 11%]
tests/color/test_convert.py ........                                     [ 33%]
tests/color/test_difference.py .                                         [ 36%]
tests/color/test_objects.py .................                            [ 83%]
tests/color/test_strand.py ....                                          [ 94%]
tests/color/test_utility.py ..                                           [100%]

- generated xml file: /var/folders/fc/jt94qxm91n90b49bnc0f3cjw0000gn/T/tmp-61738UIbD4Q58P9y1.xml -
============================== 36 passed in 0.10s ==============================
Error: TypeError: Cannot read property '$' of undefined
============================= test session starts ==============================
platform darwin -- Python 3.7.2, pytest-5.1.2, py-1.8.0, pluggy-0.13.0
rootdir: /Users/mjf/dev/twinkler
collected 36 items

tests/color/test_color_math.py ....                                      [ 11%]
tests/color/test_convert.py ........                                     [ 33%]
tests/color/test_difference.py .                                         [ 36%]
tests/color/test_objects.py .................                            [ 83%]
tests/color/test_strand.py ....                                          [ 94%]
tests/color/test_utility.py ..                                           [100%]

- generated xml file: /var/folders/fc/jt94qxm91n90b49bnc0f3cjw0000gn/T/tmp-61738OldKk0r87SfD.xml -
============================== 36 passed in 0.10s ==============================
Error: TypeError: Cannot read property '$' of undefined
============================= test session starts ==============================
platform darwin -- Python 3.7.2, pytest-5.1.2, py-1.8.0, pluggy-0.13.0
rootdir: /Users/mjf/dev/twinkler
collected 1 item

tests/color/test_objects.py .                                            [100%]

- generated xml file: /var/folders/fc/jt94qxm91n90b49bnc0f3cjw0000gn/T/tmp-617386UYKYihkSztU.xml -
============================== 1 passed in 0.02s ===============================
Error: TypeError: Cannot read property '$' of undefined

Extension version: 2019.9.34911
VS Code version: Code 1.38.1 (b37e54c98e1a74ba89e03073e5a3761284e3ffb0, 2019-09-11T13:31:32.854Z)
OS version: Darwin x64 18.7.0

System Info

Item	Value
CPUs	Intel(R) Core(TM) i7-4850HQ CPU @ 2.30GHz (8 x 2300)
GPU Status	2d_canvas: enabled flash_3d: enabled flash_stage3d: enabled flash_stage3d_baseline: enabled gpu_compositing: enabled multiple_raster_threads: enabled_on native_gpu_memory_buffers: enabled oop_rasterization: disabled_off protected_video_decode: unavailable_off rasterization: enabled skia_deferred_display_list: disabled_off skia_renderer: disabled_off surface_synchronization: enabled_on video_decode: enabled viz_display_compositor: disabled_off webgl: enabled webgl2: enabled
Load (avg)	2, 3, 3
Memory (System)	16.00GB (0.33GB free)
Process Argv	.
Screen Reader	no
VM	0%

[kimadeline]

Hi @mfeif 👋 This is a duplicate of #6990.

[mfeif]

Thank you; sorry, I did search for that error string, and didn't find anything, though it's here.