Improve coverage configuration

.coveragerc

@@ -0,0 +1,8 @@
+[run]
+source=
+	pkg_resources
+	setuptools
+omit=
+	*/_vendor/*
+
+[report]

.github/workflows/python-tests.yml

@@ -98,5 +98,3 @@ jobs:
         python -m
         tox
         --parallel auto
-        --
-        --cov

.travis.yml

@@ -5,7 +5,6 @@ jobs:
   fast_finish: true
   include:
   - python: pypy3
-    env: DISABLE_COVERAGE=1  # Don't run coverage on pypy (too slow).
   - python: 3.5
   - python: 3.6
   - python: 3.7
@@ -15,12 +14,12 @@ jobs:
     env: LANG=C
   - python: 3.8-dev
   - <<: *latest_py3
-    env: TOXENV=docs DISABLE_COVERAGE=1
+    env: TOXENV=docs
   allow_failures:
   # suppress failures due to pypa/setuptools#2000
   - python: pypy3
   - <<: *latest_py3
-    env: TOXENV=docs DISABLE_COVERAGE=1
+    env: TOXENV=docs
 
 cache: pip
 
@@ -39,22 +38,8 @@ install:
 
 script:
   - export NETWORK_REQUIRED=1
-  - |
-    ( # Run testsuite.
-      if [ -z "$DISABLE_COVERAGE" ]
-      then
-        tox -- --cov
-      else
-        tox
-      fi
-    )
+  - tox
 
 after_success:
-  - |
-    ( # Upload coverage data.
-      if [ -z "$DISABLE_COVERAGE" ]
-      then
-        export TRAVIS_JOB_NAME="${TRAVIS_PYTHON_VERSION} (LANG=$LANG)" CODECOV_ENV=TRAVIS_JOB_NAME
-        tox -e coverage,codecov
-      fi
-    )
+  - export TRAVIS_JOB_NAME="${TRAVIS_PYTHON_VERSION} (LANG=$LANG)" CODECOV_ENV=TRAVIS_JOB_NAME
+  - tox -e coverage,codecov

pytest.ini

@@ -1,5 +1,5 @@
 [pytest]
-addopts=--doctest-modules --flake8 --doctest-glob=pkg_resources/api_tests.txt -r sxX
+addopts=--doctest-modules --flake8 --doctest-glob=pkg_resources/api_tests.txt --cov -r sxX
 norecursedirs=dist build *.egg setuptools/extern pkg_resources/extern pkg_resources/tests/data tools .* setuptools/_vendor pkg_resources/_vendor
 doctest_optionflags=ELLIPSIS ALLOW_UNICODE
 filterwarnings =

tox.ini

@@ -23,12 +23,16 @@ setenv =
 # TODO: The passed environment variables came from copying other tox.ini files
 # These should probably be individually annotated to explain what needs them.
 passenv=APPDATA HOMEDRIVE HOMEPATH windir Program* CommonProgram* VS* APPVEYOR APPVEYOR_* CI CODECOV_* TRAVIS TRAVIS_* NETWORK_REQUIRED
-commands=pytest --cov-config={toxinidir}/tox.ini --cov-report= {posargs}
+commands = pytest {posargs}
 usedevelop=True
 extras =
 	tests
 
 
+[testenv:pypy{,3}]
+commands = pytest --no-cov {posargs}
+
+
 [testenv:coverage]
 description=Combine coverage data and create report
 deps=coverage
@@ -53,13 +57,6 @@ changedir = docs
 commands =
         python -m sphinx . {toxinidir}/build/html
 
-[coverage:run]
-source=
-	pkg_resources
-	setuptools
-omit=
-	*/_vendor/*
-
 [testenv:finalize]
 skip_install = True
 deps =