prepare 1.30.0 release

Fix issues related to running xdist with the terminal plugin disabled

.gitignore

@@ -23,7 +23,7 @@ include/
 lib/
 bin/
 env/
-xdist/_version.py*
+src/xdist/_version.py*
 pytest_xdist.egg-info
 issue/
 3rdparty/

.pre-commit-config.yaml

@@ -4,7 +4,7 @@ repos:
     hooks:
     -   id: black
         args: [--safe, --quiet]
-        language_version: python3.6
+        language_version: python3.7
 -   repo: https://github.com/pre-commit/pre-commit-hooks
     rev: v1.3.0
     hooks:
@@ -21,4 +21,4 @@ repos:
         files: ^(CHANGELOG.rst|HOWTORELEASE.rst|README.rst|changelog/.*)$
         language: python
         additional_dependencies: [pygments, restructuredtext_lint]
-        python_version: python3.6
+        python_version: python3.7

.travis.yml

@@ -12,7 +12,7 @@ notifications:
   - pytest-commit@python.org
 
 install:
-  - pip install -U pip
+  - pip install -U pip setuptools
   - pip install tox setuptools_scm
 script: tox
 
@@ -25,13 +25,13 @@ stages:
 jobs:
   include:
     - stage: baseline
-      python: '3.6'
+      python: '3.7'
       env: TOXENV=linting
       cache:
         directories:
           - $HOME/.cache/pre-commit
-    - python: '3.6'
+    - python: '3.7'
-      env: TOXENV=py36-pytestlatest
+      env: TOXENV=py37-pytestlatest
     - python: '2.7'
       env: TOXENV=py27-pytestlatest
 
@@ -40,19 +40,15 @@ jobs:
       env: TOXENV=py34-pytestlatest
     - python: "3.5"
       env: TOXENV=py35-pytestlatest
+    - python: "3.6"
+      env: TOXENV=py36-pytestlatest
     - python: "3.7"
-      env: TOXENV=py37-pytestlatest
+      env: TOXENV=py37-pytestmaster
-    - python: "2.7"
+    - python: "3.7"
-      env: TOXENV=py27-pytestmaster
+      env: TOXENV=py37-pytestfeatures
-    - python: "2.7"
-      env: TOXENV=py27-pytestfeatures
-    - python: "3.6"
-      env: TOXENV=py36-pytestmaster
-    - python: "3.6"
-      env: TOXENV=py36-pytestfeatures
 
     - stage: deploy
-      python: '3.6'
+      python: '3.7'
       env:
       install: pip install -U setuptools setuptools_scm
       script: skip

CHANGELOG.rst

@@ -1,3 +1,24 @@
+pytest-xdist 1.29.0 (2019-06-14)
+================================
+
+Features
+--------
+
+- `#226 <https://github.com/pytest-dev/pytest-xdist/issues/226>`_: ``--max-worker-restart`` now assumes a more reasonable value (4 times the number of
+  nodes) when not given explicitly. This prevents test suites from running forever when the suite crashes during collection.
+
+- `#435 <https://github.com/pytest-dev/pytest-xdist/issues/435>`_: When the test session is interrupted due to running out of workers, the reason is shown in the test summary
+  for easier viewing.
+
+- `#442 <https://github.com/pytest-dev/pytest-xdist/issues/442>`_: Compatibility fix for upcoming pytest 5.0: ``session.exitstatus`` is now an ``IntEnum`` object.
+
+
+Bug Fixes
+---------
+
+- `#435 <https://github.com/pytest-dev/pytest-xdist/issues/435>`_: No longer show an internal error when we run out of workers due to crashes.
+
+
 pytest-xdist 1.28.0 (2019-04-02)
 ================================
 
@@ -390,6 +411,28 @@ Improved Documentation
 
 .. towncrier release notes start
 
+pytest-xdist 1.30.0 (2019-10-01)
+================================
+
+Features
+--------
+
+- `#448 <https://github.com/pytest-dev/pytest-xdist/issues/448>`_: Initialization between workers and master nodes is now more consistent, which fixes a number of
+  long-standing issues related to startup with the ``-c`` option.
+
+  Issues:
+
+  * `#6 <https://github.com/pytest-dev/pytest-xdist/issues/6>`__: Poor interaction between ``-n#`` and ``-c X.cfg``
+  * `#445 <https://github.com/pytest-dev/pytest-xdist/issues/445>`__: pytest-xdist is not reporting the same nodeid as pytest does
+
+  This however only works with **pytest 5.1 or later**, as it required changes in pytest itself.
+
+
+Bug Fixes
+---------
+
+- `#467 <https://github.com/pytest-dev/pytest-xdist/issues/467>`_: Fix crash issues related to running xdist with the terminal plugin disabled.
+
 
 1.17.0
 ------

appveyor.yml

@@ -5,13 +5,11 @@ environment:
   - TOXENV: "py35-pytestlatest"
   - TOXENV: "py36-pytestlatest"
   - TOXENV: "py37-pytestlatest"
-  - TOXENV: "py27-pytestmaster"
+  - TOXENV: "py37-pytestmaster"
-  - TOXENV: "py36-pytestmaster"
+  - TOXENV: "py37-pytestfeatures"
-  - TOXENV: "py27-pytestfeatures"
-  - TOXENV: "py36-pytestfeatures"
 
 install:
-  - C:\Python37\python -m pip install -U pip
+  - C:\Python37\python -m pip install -U pip setuptools
   - C:\Python37\python -m pip install -U tox setuptools_scm
 
 build: false  # Not a C# project, build stuff at the test step instead.

setup.py

@@ -8,7 +8,7 @@ with open("README.rst") as f:
 
 setup(
     name="pytest-xdist",
-    use_scm_version={"write_to": "xdist/_version.py"},
+    use_scm_version={"write_to": "src/xdist/_version.py"},
     description="pytest xdist plugin for distributed testing"
     " and loop-on-failing modes",
     long_description=long_description,
@@ -17,7 +17,9 @@ setup(
     author_email="pytest-dev@python.org,holger@merlinux.eu",
     url="https://github.com/pytest-dev/pytest-xdist",
     platforms=["linux", "osx", "win32"],
-    packages=find_packages(exclude=["testing", "example"]),
+    packages=find_packages(where="src"),
+    package_dir={"": "src"},
+    extras_require={"testing": ["filelock"]},
     entry_points={
         "pytest11": ["xdist = xdist.plugin", "xdist.looponfail = xdist.looponfail"]
     },

src/xdist/dsession.py

@@ -46,14 +46,11 @@ class DSession(object):
         self._failed_collection_errors = {}
         self._active_nodes = set()
         self._failed_nodes_count = 0
-        self._max_worker_restart = self.config.option.maxworkerrestart
+        self._max_worker_restart = get_default_max_worker_restart(self.config)
-        if self._max_worker_restart is not None:
+        # summary message to print at the end of the session
-            self._max_worker_restart = int(self._max_worker_restart)
+        self._summary_report = None
-        try:
         self.terminal = config.pluginmanager.getplugin("terminalreporter")
-        except KeyError:
+        if self.terminal:
-            self.terminal = None
-        else:
             self.trdist = TerminalDistReporter(config)
             config.pluginmanager.register(self.trdist, "terminaldistreporter")
 
@@ -198,15 +195,23 @@ class DSession(object):
         )
         if maximum_reached:
             if self._max_worker_restart == 0:
-                msg = "Worker restarting disabled"
+                msg = "worker {} crashed and worker restarting disabled".format(
+                    node.gateway.id
+                )
             else:
-                msg = "Maximum crashed workers reached: %d" % self._max_worker_restart
+                msg = "maximum crashed workers reached: %d" % self._max_worker_restart
-            self.report_line(msg)
+            self._summary_report = msg
+            self.report_line("\n" + msg)
+            self.triggershutdown()
         else:
-            self.report_line("Replacing crashed worker %s" % node.gateway.id)
+            self.report_line("\nreplacing crashed worker %s" % node.gateway.id)
             self._clone_node(node)
         self._active_nodes.remove(node)
 
+    def pytest_terminal_summary(self, terminalreporter):
+        if self.config.option.verbose >= 0 and self._summary_report:
+            terminalreporter.write_sep("=", "xdist: {}".format(self._summary_report))
+
     def worker_collectionfinish(self, node, ids):
         """worker has finished test collection.
 
@@ -316,7 +321,7 @@ class DSession(object):
         # XXX count no of failures and retry N times
         runner = self.config.pluginmanager.getplugin("runner")
         fspath = nodeid.split("::")[0]
-        msg = "Worker %r crashed while running %r" % (worker.gateway.id, nodeid)
+        msg = "worker %r crashed while running %r" % (worker.gateway.id, nodeid)
         rep = runner.TestReport(
             nodeid, (fspath, None, fspath), (), "failed", msg, "???"
         )
@@ -390,10 +395,16 @@ class TerminalDistReporter(object):
             return
         self.write_line("[%s] node down: %s" % (node.gateway.id, error))
 
-    # def pytest_xdist_rsyncstart(self, source, gateways):
+
-    #    targets = ",".join([gw.id for gw in gateways])
+def get_default_max_worker_restart(config):
-    #    msg = "[%s] rsyncing: %s" %(targets, source)
+    """gets the default value of --max-worker-restart option if it is not provided.
-    #    self.write_line(msg)
+
-    # def pytest_xdist_rsyncfinish(self, source, gateways):
+    Use a reasonable default to avoid workers from restarting endlessly due to crashing collections (#226).
-    #    targets = ", ".join(["[%s]" % gw.id for gw in gateways])
+    """
-    #    self.write_line("rsyncfinish: %s -> %s" %(source, targets))
+    result = config.option.maxworkerrestart
+    if result is not None:
+        result = int(result)
+    elif config.option.numprocesses:
+        # if --max-worker-restart was not provided, use a reasonable default (#226)
+        result = config.option.numprocesses * 4
+    return result

src/xdist/plugin.py

@@ -154,11 +154,7 @@ def pytest_addoption(parser):
 def pytest_addhooks(pluginmanager):
     from xdist import newhooks
 
-    # avoid warnings with pytest-2.8
+    pluginmanager.add_hookspecs(newhooks)
-    method = getattr(pluginmanager, "add_hookspecs", None)
-    if method is None:
-        method = pluginmanager.addhooks
-    method(newhooks)
 
 
 # -------------------------------------------------------------------------
@@ -174,6 +170,7 @@ def pytest_configure(config):
         session = DSession(config)
         config.pluginmanager.register(session, "dsession")
         tr = config.pluginmanager.getplugin("terminalreporter")
+        if tr:
             tr.showfspath = False
     if config.getoption("boxed"):
         config.option.forked = True

src/xdist/remote.py

@@ -15,6 +15,8 @@ import _pytest.hookspec
 import pytest
 from execnet.gateway_base import dumps, DumpError
 
+from _pytest.config import _prepareconfig, Config
+
 
 class WorkerInteractor(object):
     def __init__(self, config, channel):
@@ -41,7 +43,8 @@ class WorkerInteractor(object):
 
     @pytest.hookimpl(hookwrapper=True)
     def pytest_sessionfinish(self, exitstatus):
-        self.config.workeroutput["exitstatus"] = exitstatus
+        # in pytest 5.0+, exitstatus is an IntEnum object
+        self.config.workeroutput["exitstatus"] = int(exitstatus)
         yield
         self.sendevent("workerfinished", workeroutput=self.config.workeroutput)
 
@@ -210,18 +213,18 @@ def getinfodict():
 
 
 def remote_initconfig(option_dict, args):
-    from _pytest.config import Config
-
     option_dict["plugins"].append("no:terminal")
-    config = Config.fromdictargs(option_dict, args)
+    return Config.fromdictargs(option_dict, args)
+
+
+def setup_config(config, basetemp):
     config.option.looponfail = False
     config.option.usepdb = False
     config.option.dist = "no"
     config.option.distload = False
     config.option.numprocesses = None
     config.option.maxprocesses = None
-    config.args = args
+    config.option.basetemp = basetemp
-    return config
 
 
 if __name__ == "__channelexec__":
@@ -238,7 +241,13 @@ if __name__ == "__channelexec__":
     os.environ["PYTEST_XDIST_WORKER"] = workerinput["workerid"]
     os.environ["PYTEST_XDIST_WORKER_COUNT"] = str(workerinput["workercount"])
 
+    if hasattr(Config, "InvocationParams"):
+        config = _prepareconfig(args, None)
+    else:
         config = remote_initconfig(option_dict, args)
+        config.args = args
+
+    setup_config(config, option_dict.get("basetemp"))
     config._parser.prog = os.path.basename(workerinput["mainargv"][0])
     config.workerinput = workerinput
     config.workeroutput = {}

src/xdist/workermanage.py

@@ -112,7 +112,10 @@ class NodeManager(object):
         ignores += self.config.option.rsyncignore
         ignores += self.config.getini("rsyncignore")
 
-        return {"ignores": ignores, "verbose": self.config.option.verbose}
+        return {
+            "ignores": ignores,
+            "verbose": getattr(self.config.option, "verbose", False),
+        }
 
     def rsync(self, gateway, source, notify=None, verbose=False, ignores=None):
         """Perform rsync to remote hosts for node."""
@@ -186,6 +189,8 @@ def make_reltoroot(roots, args):
     for arg in args:
         parts = arg.split(splitcode)
         fspath = py.path.local(parts[0])
+        if not fspath.exists():
+            continue
         for root in roots:
             x = fspath.relto(root)
             if x or fspath == root:
@@ -236,10 +241,14 @@ class WorkerController(object):
     def setup(self):
         self.log("setting up worker session")
         spec = self.gateway.spec
+        if hasattr(self.config, "invocation_params"):
+            args = [str(x) for x in self.config.invocation_params.args or ()]
+            option_dict = {}
+        else:
             args = self.config.args
+            option_dict = vars(self.config.option)
         if not spec.popen or spec.chdir:
             args = make_reltoroot(self.nodemanager.roots, args)
-        option_dict = vars(self.config.option)
         if spec.popen:
             name = "popen-%s" % self.gateway.id
             if hasattr(self.config, "_tmpdirhandler"):

testing/acceptance_test.py

@@ -559,6 +559,30 @@ def test_fixture_teardown_failure(testdir):
     assert result.ret
 
 
+def test_config_initialization(testdir, pytestconfig):
+    """Ensure workers and master are initialized consistently. Integration test for #445"""
+    if not hasattr(pytestconfig, "invocation_params"):
+        pytest.skip(
+            "requires pytest >=5.1 (config has no attribute 'invocation_params')"
+        )
+    testdir.makepyfile(
+        **{
+            "dir_a/test_foo.py": """
+                def test_1(): pass
+        """
+        }
+    )
+    testdir.makefile(
+        ".ini",
+        myconfig="""
+        [pytest]
+        testpaths=dir_a
+    """,
+    )
+    result = testdir.runpytest("-n2", "-c", "myconfig.ini", "-v")
+    result.stdout.fnmatch_lines(["dir_a/test_foo.py::test_1*"])
+
+
 @pytest.mark.parametrize("when", ["setup", "call", "teardown"])
 def test_crashing_item(testdir, when):
     """Ensure crashing item is correctly reported during all testing stages"""
@@ -849,8 +873,8 @@ class TestNodeFailure:
         res = testdir.runpytest(f, "-n1")
         res.stdout.fnmatch_lines(
             [
-                "*Replacing crashed worker*",
+                "replacing crashed worker gw*",
-                "*Worker*crashed while running*",
+                "worker*crashed while running*",
                 "*1 failed*1 passed*",
             ]
         )
@@ -868,8 +892,8 @@ class TestNodeFailure:
         res = testdir.runpytest(f, "-n2")
         res.stdout.fnmatch_lines(
             [
-                "*Replacing crashed worker*",
+                "replacing crashed worker gw*",
-                "*Worker*crashed while running*",
+                "worker*crashed while running*",
                 "*1 failed*3 passed*",
             ]
         )
@@ -885,8 +909,8 @@ class TestNodeFailure:
         res = testdir.runpytest(f, "--dist=each", "--tx=popen")
         res.stdout.fnmatch_lines(
             [
-                "*Replacing crashed worker*",
+                "replacing crashed worker gw*",
-                "*Worker*crashed while running*",
+                "worker*crashed while running*",
                 "*1 failed*1 passed*",
             ]
         )
@@ -922,14 +946,35 @@ class TestNodeFailure:
         res = testdir.runpytest(f, "-n4", "--max-worker-restart=1")
         res.stdout.fnmatch_lines(
             [
-                "*Replacing crashed worker*",
+                "replacing crashed worker*",
-                "*Maximum crashed workers reached: 1*",
+                "maximum crashed workers reached: 1*",
-                "*Worker*crashed while running*",
+                "worker*crashed while running*",
-                "*Worker*crashed while running*",
+                "worker*crashed while running*",
                 "*2 failed*2 passed*",
             ]
         )
 
+    def test_max_worker_restart_tests_queued(self, testdir):
+        f = testdir.makepyfile(
+            """
+            import os, pytest
+            @pytest.mark.parametrize('i', range(10))
+            def test(i): os._exit(1)
+        """
+        )
+        res = testdir.runpytest(f, "-n2", "--max-worker-restart=3")
+        res.stdout.fnmatch_lines(
+            [
+                "replacing crashed worker*",
+                "maximum crashed workers reached: 3*",
+                "worker*crashed while running*",
+                "worker*crashed while running*",
+                "* xdist: maximum crashed workers reached: 3 *",
+                "* 4 failed in *",
+            ]
+        )
+        assert "INTERNALERROR" not in res.stdout.str()
+
     def test_max_worker_restart_die(self, testdir):
         f = testdir.makepyfile(
             """
@@ -939,7 +984,10 @@ class TestNodeFailure:
         )
         res = testdir.runpytest(f, "-n4", "--max-worker-restart=0")
         res.stdout.fnmatch_lines(
-            ["*Unexpectedly no active workers*", "*INTERNALERROR*"]
+            [
+                "* xdist: worker gw* crashed and worker restarting disabled *",
+                "* no tests ran in *",
+            ]
         )
 
     def test_disable_restart(self, testdir):
@@ -954,9 +1002,10 @@ class TestNodeFailure:
         res = testdir.runpytest(f, "-n4", "--max-worker-restart=0")
         res.stdout.fnmatch_lines(
             [
-                "*Worker restarting disabled*",
+                "worker gw* crashed and worker restarting disabled",
-                "*Worker*crashed while running*",
+                "*worker*crashed while running*",
-                "*1 failed*2 passed*",
+                "* xdist: worker gw* crashed and worker restarting disabled *",
+                "* 1 failed, 2 passed in *",
             ]
         )
 
@@ -1025,6 +1074,22 @@ def test_color_yes_collection_on_non_atty(testdir, request):
     assert "gw0 C / gw1 C" not in result.stdout.str()
 
 
+def test_without_terminal_plugin(testdir, request):
+    """
+    No output when terminal plugin is disabled
+    """
+    testdir.makepyfile(
+        """
+        def test_1():
+            pass
+    """
+    )
+    result = testdir.runpytest("-p", "no:terminal", "-n2")
+    assert result.stdout.str() == ""
+    assert result.stderr.str() == ""
+    assert result.ret == 0
+
+
 def test_internal_error_with_maxfail(testdir):
     """
     Internal error when using --maxfail option (#62, #65).

testing/conftest.py

@@ -1,7 +1,11 @@
+import six
 import py
 import pytest
 import execnet
 
+pytest_plugins = "pytester"
+
+if six.PY2:
 
     @pytest.fixture(scope="session", autouse=True)
     def _ensure_imports():
@@ -12,11 +16,6 @@ def _ensure_imports():
         execnet.makegateway
 
 
-pytest_plugins = "pytester"
-
-# rsyncdirs = ['.', '../xdist', py.path.local(execnet.__file__).dirpath()]
-
-
 @pytest.fixture(autouse=True)
 def _divert_atexit(request, monkeypatch):
     import atexit
@@ -45,14 +44,6 @@ def specssh(request):
     return getspecssh(request.config)
 
 
-@pytest.fixture
-def testdir(testdir):
-    # pytest before 2.8 did not have a runpytest_subprocess
-    if not hasattr(testdir, "runpytest_subprocess"):
-        testdir.runpytest_subprocess = testdir.runpytest
-    return testdir
-
-
 # configuration information for tests
 def getgspecs(config):
     return [execnet.XSpec(spec) for spec in config.getvalueorskip("gspecs")]

testing/test_dsession.py

@@ -1,4 +1,4 @@
-from xdist.dsession import DSession
+from xdist.dsession import DSession, get_default_max_worker_restart
 from xdist.report import report_collection_diff
 from xdist.scheduler import EachScheduling, LoadScheduling
 
@@ -268,6 +268,24 @@ def test_report_collection_diff_equal():
     assert report_collection_diff(from_collection, to_collection, 1, 2) is None
 
 
+def test_default_max_worker_restart():
+    class config:
+        class option:
+            maxworkerrestart = None
+            numprocesses = 0
+
+    assert get_default_max_worker_restart(config) is None
+
+    config.option.numprocesses = 2
+    assert get_default_max_worker_restart(config) == 8
+
+    config.option.maxworkerrestart = "1"
+    assert get_default_max_worker_restart(config) == 1
+
+    config.option.maxworkerrestart = "0"
+    assert get_default_max_worker_restart(config) == 0
+
+
 def test_report_collection_diff_different():
     """Test reporting of different collections."""
     from_collection = ["aaa", "bbb", "ccc", "YYY"]

tox.ini

@@ -2,15 +2,15 @@
 envlist=
   linting
   py{27,34,35,36,37}-pytestlatest
-  py{27,36}-pytest{master,features}
+  py37-pytest{master,features}
 
 [testenv]
 passenv = USER USERNAME
+extras = testing
 deps =
   pytestlatest: pytest
   pytestmaster: git+https://github.com/pytest-dev/pytest.git@master
   pytestfeatures: git+https://github.com/pytest-dev/pytest.git@features
-  filelock
 commands=
   pytest {posargs}
 
@@ -24,7 +24,7 @@ commands = pre-commit run --all-files --show-diff-on-failure
 [testenv:release]
 changedir=
 decription = do a release, required posarg of the version number
-basepython = python3.6
+basepython = python3.7
 skipsdist = True
 usedevelop = True
 passenv = *