Travis: use xdist for py?? envs, keeping py27/py37

.travis.yml

@@ -27,19 +27,19 @@ env:
 matrix:
   allow_failures:
     - python: '3.8-dev'
-      env: TOXENV=py38
+      env: TOXENV=py38-xdist
 
 jobs:
   include:
     # Coverage tracking is slow with pypy, skip it.
     - env: TOXENV=pypy PYTEST_NO_COVERAGE=1
       python: 'pypy-5.4'
       dist: trusty
-    - env: TOXENV=py34
+    - env: TOXENV=py34-xdist
       python: '3.4'
-    - env: TOXENV=py35
+    - env: TOXENV=py35-xdist
       python: '3.5'
-    - env: TOXENV=py36
+    - env: TOXENV=py36-xdist
       python: '3.6'
     - env: TOXENV=py37
     - &test-macos
@@ -49,9 +49,9 @@ jobs:
       sudo: required
       install:
         - python -m pip install --pre tox
-      env: TOXENV=py27
+      env: TOXENV=py27-xdist
     - <<: *test-macos
-      env: TOXENV=py37
+      env: TOXENV=py37-xdist
       before_install:
         - brew update
         - brew upgrade python
@@ -65,7 +65,7 @@ jobs:
       python: '3.7'
 
     - stage: cron_only
-      env: TOXENV=py38
+      env: TOXENV=py38-xdist
       python: '3.8-dev'
 
     - stage: deploy

appveyor.yml

@@ -2,12 +2,10 @@ environment:
   matrix:
   - TOXENV: "py37-xdist"
   - TOXENV: "py27-xdist"
-  - TOXENV: "py27"
-  - TOXENV: "py37"
   - TOXENV: "linting,docs,doctesting"
-  - TOXENV: "py36"
-  - TOXENV: "py35"
-  - TOXENV: "py34"
+  - TOXENV: "py34-xdist"
+  - TOXENV: "py35-xdist"
+  - TOXENV: "py36-xdist"
   - TOXENV: "pypy"
     PYTEST_NO_COVERAGE: "1"
   # Specialized factors for py27.

src/_pytest/terminal.py

@@ -280,7 +280,9 @@ def hasopt(self, char):
 
     def write_fspath_result(self, nodeid, res, **markup):
         fspath = self.config.rootdir.join(nodeid.split("::")[0])
-        if fspath != self.currentfspath:
+        # NOTE: explicitly check for None to work around py bug, and for less
+        # overhead in general (https://github.com/pytest-dev/py/pull/207).
+        if self.currentfspath is None or fspath != self.currentfspath:
             if self.currentfspath is not None and self._show_progress_info:
                 self._write_progress_information_filling_space()
             self.currentfspath = fspath

testing/test_assertrewrite.py

@@ -1308,10 +1308,17 @@ def test_simple_failure():
     @pytest.mark.skipif(
         sys.platform.startswith("win32"), reason="cannot remove cwd on Windows"
     )
-    def test_cwd_changed(self, testdir):
+    def test_cwd_changed(self, testdir, monkeypatch):
+        # Setup conditions for py's fspath trying to import pathlib on py34
+        # always (previously triggered via xdist only).
+        # Ref: https://github.com/pytest-dev/py/pull/207
+        monkeypatch.setattr(sys, "path", [""] + sys.path)
+        if "pathlib" in sys.modules:
+            del sys.modules["pathlib"]
+
         testdir.makepyfile(
             **{
-                "test_bar.py": """
+                "test_setup_nonexisting_cwd.py": """
                 import os
                 import shutil
                 import tempfile
@@ -1320,7 +1327,7 @@ def test_cwd_changed(self, testdir):
                 os.chdir(d)
                 shutil.rmtree(d)
             """,
-                "test_foo.py": """
+                "test_test.py": """
                 def test():
                     pass
             """,

tox.ini

@@ -20,19 +20,22 @@ envlist =
 
 [testenv]
 commands =
-    {env:_PYTEST_TOX_COVERAGE_RUN:} pytest --lsof {posargs}
+    {env:_PYTEST_TOX_COVERAGE_RUN:} pytest {env:_PYTEST_TOX_ARGS:} {posargs}
     coverage: coverage combine
     coverage: coverage report
 passenv = USER USERNAME COVERAGE_* TRAVIS PYTEST_ADDOPTS
 setenv =
+    _PYTEST_TOX_ARGS=--lsof
     # Configuration to run with coverage similar to Travis/Appveyor, e.g.
     # "tox -e py37-coverage".
     coverage: _PYTEST_TOX_COVERAGE_RUN=coverage run -m
     coverage: _PYTEST_TOX_EXTRA_DEP=coverage-enable-subprocess
     coverage: COVERAGE_FILE={toxinidir}/.coverage
     coverage: COVERAGE_PROCESS_START={toxinidir}/.coveragerc
+    xdist: _PYTEST_TOX_ARGS={env:_PYTEST_TOX_ARGS:-n auto}
 extras = testing
 deps =
+    xdist: pytest-xdist>=1.13
     {env:_PYTEST_TOX_EXTRA_DEP:}
 
 [testenv:py27-subprocess]
@@ -50,22 +53,6 @@ basepython = python3
 deps = pre-commit>=1.11.0
 commands = pre-commit run --all-files --show-diff-on-failure
 
-[testenv:py27-xdist]
-extras = testing
-deps =
-    {[testenv]deps}
-    pytest-xdist>=1.13
-commands =
-    {env:_PYTEST_TOX_COVERAGE_RUN:} pytest -n auto {posargs}
-
-[testenv:py37-xdist]
-# NOTE: copied from above due to https://github.com/tox-dev/tox/issues/706.
-extras = testing
-deps =
-    {[testenv]deps}
-    pytest-xdist>=1.13
-commands = {[testenv:py27-xdist]commands}
-
 [testenv:py27-pexpect]
 platform = linux|darwin
 deps =