Update tox. (#282)

Author: tobiasraabe

.github/workflows/main.yml

@@ -41,7 +41,7 @@ jobs:
 
       - name: Run unit tests and doctests.
         shell: bash -l {0}
-        run: tox -e pytest -- src tests -m "unit or (not integration and not end_to_end)" --cov=./ --cov-report=xml -n auto
+        run: tox -e pytest -- -m "unit or (not integration and not end_to_end)" --cov=src --cov=tests --cov-report=xml -n auto
 
       - name: Upload coverage report for unit tests and doctests.
         if: runner.os == 'Linux' && matrix.python-version == '3.8'
@@ -50,7 +50,7 @@ jobs:
 
       - name: Run integration tests.
         shell: bash -l {0}
-        run: tox -e pytest -- src tests -m integration --cov=./ --cov-report=xml -n auto
+        run: tox -e pytest -- -m integration --cov=src --cov=tests --cov-report=xml -n auto
 
       - name: Upload coverage reports of integration tests.
         if: runner.os == 'Linux' && matrix.python-version == '3.8'
@@ -59,7 +59,7 @@ jobs:
 
       - name: Run end-to-end tests.
         shell: bash -l {0}
-        run: tox -e pytest -- src tests -m end_to_end --cov=./ --cov-report=xml -n auto
+        run: tox -e pytest -- -m end_to_end --cov=src --cov=tests --cov-report=xml -n auto
 
       - name: Upload coverage reports of end-to-end tests.
         if: runner.os == 'Linux' && matrix.python-version == '3.8'

tests/test_warnings.py

@@ -175,4 +175,5 @@ def task_example():
     assert result.exit_code == ExitCode.OK
     assert "Warnings" in result.output
     assert "warning!!!" in result.output
-    assert result.output.count("task_example") == 31
+    # One occurrence is sometimes clipped.
+    assert result.output.count("task_example") in [30, 31]

tox.ini

@@ -1,11 +1,8 @@
 [tox]
 envlist = pytest, sphinx
-skipsdist = True
-skip_missing_interpreters = True
-whitelist_externals = python
 
 [testenv]
-basepython = python
+usedevelop = true
 
 [testenv:pytest]
 conda_channels =
@@ -36,7 +33,6 @@ conda_deps =
     pydot
 
 commands =
-    pip install --no-deps -e .
     pytest {posargs}
 
 [testenv:sphinx]
@@ -71,6 +67,9 @@ warn-symbols =
     pytest.mark.wip = Remove 'wip' mark for tests.
 
 [pytest]
+testpaths =
+    src
+    tests
 addopts = --doctest-modules
 filterwarnings =
     ignore: the imp module is deprecated in favour of importlib
@@ -81,6 +80,3 @@ markers =
     unit: Flag for unit tests which target mainly a single function.
     integration: Flag for integration tests which may comprise of multiple unit tests.
     end_to_end: Flag for tests that cover the whole program.
-norecursedirs =
-    .idea
-    .tox