Pytest debug doesn't work with Multi-root Workspace

[xahgmah]

Environment data

• VS Code version: 1.25.1
• Extension version: 2018.7.1
• OS and version: macOS High Sierra 10.13.5
• Python version: 2.7.15
• Type of virtual environment used: virtualenv

Actual behavior

Can't run "Debug All Unit Tests". Receive debug error immediately.

Doesn't matter which project I am trying to run.

If I open one of folders separately it works fine.

Expected behavior

Debug functionality works for Multi-root Workspace.

Steps to reproduce:

1. Create new workspace
2. Add several projects by clicking "Add Folder to Workspace"
3. Setup environment
4. Cmd+P -> "Python: Debug All Unit Tests"

Logs

Workspace settings are default
Folder settings

{
    "python.linting.pylintArgs": [
        "--load-plugins",
        "pylint_django"
    ],
    "python.pythonPath": "${workspaceFolder}/venv/bin/python",
    "python.unitTest.unittestEnabled": false,
    "python.unitTest.nosetestsEnabled": false,
    "python.unitTest.pyTestEnabled": true,
    "python.unitTest.pyTestArgs": [
        "src/tests",
    ]
}

Output is empty

Debug console:
IndexError, list index out of range

[ericsnowcurrently]

Hi @xahgmah. Thanks for letting us know about this problem. Unfortunately I have not been able to reproduce the problem yet. Would you mind giving us a minimal example that reproduces the problem? Please include the directory structure and the content of the files. For example, here's what I tried:

projects/
    folder1/
        spam.py
        tests/
            __init__.py  # empty
            test_spam.py
    folder2/
        eggs.py
        tests/
            __init__.py  # empty
            test_eggs.py

# spam.py
SPAM = 42

# test_spam.py
import spam
def test_spam():
    assert spam.SPAM == 42

# eggs.py
EGGS = True

# test_eggs.py
import eggs
def test_eggs():
    assert eggs.EGGS is True

I did all this using a venv that has pytest installed. My workspace config was:

{
	"folders": [
		{
			"path": "folder1"
		},
		{
			"path": "folder2"
		}
	],
	"settings": {
        "python.pythonPath": "$HOME/.envs/pytest/bin/python",
        "python.unitTest.pyTestEnabled": true,
        "python.unitTest.nosetestsEnabled": false,
        "python.unitTest.unittestEnabled": false,
        "python.linting.pylintEnabled": false
    }
}

When I ran the Python: Run All Unit Tests task it prompted me for which folder to run. Picking either one worked fine.

[brettcannon]

Because we have not heard back with the information we requested, we are closing this issue for now. If you are able to provide the info later on then we will be happy to re-open this issue to pick up where we left off.