Does not expand top level directory in test explorer

Environment data

• VS Code version: 1.34.0
• Extension version (available under the Extensions sidebar): 2019.6.16302-dev
• OS and version: windows
• Python version (& distribution if applicable, e.g. Anaconda): 3.7
• Type of virtual environment used (N/A | venv | virtualenv | conda | …): N/A
• Relevant/affected Python packages and their versions: pytest

Expected behaviour

Actual behaviour

Steps to reproduce:

1. This is with ptvsd master

{
    "python.pythonPath": "C:\\Python37\\python.exe",
    "python.linting.flake8Enabled": true,
    "python.linting.pylintEnabled": false,
    "python.linting.flake8Args": [
        "--ignore", "W,E24,E121,E123,E125,E126,E221,E226,E266,E704,E265,E722,E501,E731,E306,E401,E302,E222,E303,E402,E305,E261,E262",
        "--exclude", "ptvsd/_vendored/pydevd"
    ],
    "python.formatting.provider": "autopep8",
    "python.formatting.autopep8Args": [
        "--ignore", "W,E24,E121,E123,E125,E126,E221,E226,E266,E704,E265,E722,E501,E731,E306,E401,E302,E222,E303,E402,E305,E261,E262"
    ],
    "python.autoComplete.extraPaths": [
        "./src/_vendored",
        "./src/_vendored/pydevd"
    ],
    "python.testing.unittestEnabled": false,
    "python.testing.nosetestsEnabled": false,
    "python.testing.pyTestEnabled": true,
}

[karthiknadig]

This is what i see with 2019.5.16299-rc:

[karthiknadig]

We don’t control this behavior any more. This should be a setting on VS Code.