Prepare release 1.18.1

Unserialize reprlocals to a ReprLocal instance

.github/PULL_REQUEST_TEMPLATE.md

@@ -0,0 +1,17 @@
+Thanks for submitting a PR, your contribution is really appreciated!
+
+Here's a quick checklist that should be present in PRs:
+
+- [ ] Make sure to include reasonable tests for your change if necessary
+
+- [ ] Add a *news* file into the `changelog` folder, following these guidelines:
+  * Name it `$issue_id.$type` for example `588.bug`
+  * If you don't have an issue_id change it to the PR id after creating it
+  * Ensure type is one of `removal`, `feature`, `bugfix`, `vendor`, `doc` or `trivial`
+  * Make sure to use full sentences with correct case and punctuation, for example:
+
+    ```
+    Fix issue with non-ascii contents in doctest text files.
+    ```
+
+

.travis.yml

@@ -1,30 +1,19 @@
 sudo: false
 language: python
 python:
+- '2.6'
+- '2.7'
+- '3.4'
 - '3.5'
-install: pip install -U tox setuptools_scm
+- '3.6'
-env:
+install: pip install tox-travis setuptools_scm
-  matrix:
+matrix:
+  include:
   # note: please use "tox --listenvs" to populate the build matrix
-  - TOXENV=py26-pytest27
+  - python: "3.5"
-  - TOXENV=py26-pytest28
+    env: TOXENV=flakes
-  - TOXENV=py26-pytest29
+  - python: "3.5"
-  - TOXENV=py26-pytest30
+    env: TOXENV=readme
-  - TOXENV=py27-pytest27
-  - TOXENV=py27-pytest28
-  - TOXENV=py27-pytest29
-  - TOXENV=py27-pytest30
-  - TOXENV=py34-pytest27
-  - TOXENV=py34-pytest28
-  - TOXENV=py34-pytest29
-  - TOXENV=py34-pytest30
-  - TOXENV=py35-pytest27
-  - TOXENV=py35-pytest28
-  - TOXENV=py35-pytest29
-  - TOXENV=py27-pytest28-pexpect
-  - TOXENV=py35-pytest28-pexpect
-  - TOXENV=flakes
-  - TOXENV=readme
 
 script: tox
 notifications:
@@ -39,6 +28,7 @@ notifications:
 deploy:
   provider: pypi
   user: ronny
+  skip_upload_docs: true
   password:
     secure: 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
   on:

CHANGELOG.rst

@@ -1,3 +1,70 @@
+pytest-xdist 1.18.1 (2017-07-05)
+================================
+
+Bug Fixes
+---------
+
+- Fixed serialization of ``longrepr.sections`` during error reporting from
+  workers. (`#171 <https://github.com/pytest-dev/pytest-xdist/issues/171>`_)
+
+- Fix ``ReprLocal`` not being unserialized breaking --showlocals usages. (`#176
+  <https://github.com/pytest-dev/pytest-xdist/issues/176>`_)
+
+
+pytest-xdist 1.18.0 (2017-06-26)
+================================
+
+- ``pytest-xdist`` now requires ``pytest>=3.0.0``.
+
+Features
+--------
+
+- Add long option `--numprocesses` as alternative for `-n`. (#168)
+
+
+Bug Fixes
+---------
+
+- Fix serialization and deserialization dropping longrepr details. (#133)
+
+
+pytest-xdist 1.17.1 (2017-06-10)
+================================
+
+Bug Fixes
+---------
+
+- Hot fix release reverting the change introduced by #124, unfortunately it
+  broke a number of test suites so we are reversing this change while we
+  investigate the problem. (#157)
+
+
+Improved Documentation
+----------------------
+
+- Introduced ``towncrier`` for ``CHANGELOG`` management. (#154)
+
+- Added ``HOWTORELEASE`` documentation. (#155)
+
+
+..
+    You should *NOT* be adding new change log entries to this file, this
+    file is managed by towncrier. You *may* edit previous change logs to
+    fix problems like typo corrections or such.
+    To add a new change log entry, please see
+    https://pip.pypa.io/en/latest/development/#adding-a-news-entry
+    We named the news folder ``changelog``
+
+.. towncrier release notes start
+
+
+1.17.0
+------
+
+- fix #124: xdist would mark test as complete after 'call' step. As a result,
+  xdist could identify the wrong test as failing when test crashes at teardown.
+  To address this issue, xdist now marks test as complete at teardown.
+
 1.16.0
 ------
 

HOWTORELEASE.rst

@@ -0,0 +1,45 @@
+======================
+Releasing pytest-xdist
+======================
+
+This document describes the steps to make a new ``pytest-xdist`` release.
+
+Version
+-------
+
+``master`` should always be green and a potential release candidate. ``pytest-xdist`` follows
+semantic versioning, so given that the current version is ``X.Y.Z``, to find the next version number
+one needs to look at the ``changelog`` folder:
+
+- If there is any file named ``*.feature``, then we must make a new **minor** release: next
+  release will be ``X.Y+1.0``.
+
+- Otherwise it is just a **bug fix** release: ``X.Y.Z+1``.
+
+
+Steps
+-----
+
+To publish a new release ``X.Y.Z``, the steps are as follows:
+
+#. Create a new branch named ``release-X.Y.Z`` from the latest ``master``.
+
+#. Install ``pytest-xdist`` and dev requirements in a virtualenv::
+
+    $ pip install -e . -r dev-requirements.txt
+
+#. Update ``CHANGELOG.rst`` file by running::
+
+    $ towncrier --version X.Y.Z
+
+   It might ask for confirmation to remove news fragments; answer yes.
+
+#. Commit and push the branch for review.
+
+#. Once PR is **green** and **approved**, create and push a tag::
+
+    $ export VERSION=X.Y.Z
+    $ git tag v$VERSION release-$VERSION
+    $ git push git@github.com:pytest-dev/pytest-xdist.git v$VERSION
+
+That will build the package and publish it on ``PyPI`` automatically.

MANIFEST.in

@@ -1,7 +0,0 @@
-include CHANGELOG
-include LICENSE 
-include README.txt
-include setup.py
-include tox.ini
-graft testing
-prune .git

README.rst

@@ -1,10 +1,14 @@
 
+
+.. image:: http://img.shields.io/pypi/v/pytest-xdist.svg
+    :target: https://pypi.python.org/pypi/pytest-xdist
+
+.. image:: https://anaconda.org/conda-forge/pytest-xdist/badges/version.svg
+    :target: https://anaconda.org/conda-forge/pytest-xdist
+
 .. image:: https://travis-ci.org/pytest-dev/pytest-xdist.svg?branch=master
     :target: https://travis-ci.org/pytest-dev/pytest-xdist
 
-.. image:: http://img.shields.io/pypi/v/pytest-xdist.svg
-   :target: https://pypi.python.org/pypi/pytest-xdist
-
 .. image:: https://ci.appveyor.com/api/projects/status/56eq1a1avd4sdd7e/branch/master?svg=true
     :target: https://ci.appveyor.com/project/pytestbot/pytest-xdist
 

appveyor.yml

@@ -1,23 +1,13 @@
 environment:
   matrix:
   # note: please use "tox --listenvs" to populate the build matrix
-  - TOXENV: "py26-pytest27"
-  - TOXENV: "py26-pytest28"
-  - TOXENV: "py26-pytest29"
   - TOXENV: "py26-pytest30"
-  - TOXENV: "py27-pytest27"
-  - TOXENV: "py27-pytest28"
-  - TOXENV: "py27-pytest29"
   - TOXENV: "py27-pytest30"
-  - TOXENV: "py34-pytest27"
-  - TOXENV: "py34-pytest28"
-  - TOXENV: "py34-pytest29"
   - TOXENV: "py34-pytest30"
-  - TOXENV: "py35-pytest27"
+  - TOXENV: "py35-pytest30"
-  - TOXENV: "py35-pytest28"
+  - TOXENV: "py36-pytest30"
-  - TOXENV: "py35-pytest29"
+  - TOXENV: "py27-pytest30-pexpect"
-  - TOXENV: "py27-pytest28-pexpect"
+  - TOXENV: "py35-pytest30-pexpect"
-  - TOXENV: "py35-pytest28-pexpect"
   - TOXENV: "flakes"
   - TOXENV: "readme"
 

changelog/_template.rst

@@ -0,0 +1,39 @@
+{% for section in sections %}
+{% set underline = "-" %}
+{% if section %}
+{{section}}
+{{ underline * section|length }}{% set underline = "~" %}
+
+{% endif %}
+{% if sections[section] %}
+{% for category, val in definitions.items() if category in sections[section] %}
+
+{{ definitions[category]['name'] }}
+{{ underline * definitions[category]['name']|length }}
+
+{% if definitions[category]['showcontent'] %}
+{% for text, values in sections[section][category]|dictsort(by='value') %}
+- {{ text }}{% if category != 'vendor' %} (`{{ values[0] }} <https://github.com/pytest-dev/pytest-xdist/issues/{{ values[0][1:] }}>`_){% endif %}
+
+
+{% endfor %}
+{% else %}
+- {{ sections[section][category]['']|sort|join(', ') }}
+
+
+{% endif %}
+{% if sections[section][category]|length == 0 %}
+
+No significant changes.
+
+
+{% else %}
+{% endif %}
+{% endfor %}
+{% else %}
+
+No significant changes.
+
+
+{% endif %}
+{% endfor %}

dev-requirements.txt

@@ -0,0 +1 @@
+towncrier

pyproject.toml

@@ -0,0 +1,36 @@
+[tool.towncrier]
+package = "xdist"
+filename = "CHANGELOG.rst"
+directory = "changelog/"
+title_format = "pytest-xdist {version} ({project_date})"
+template = "changelog/_template.rst"
+
+  [[tool.towncrier.type]]
+  directory = "removal"
+  name = "Deprecations and Removals"
+  showcontent = true
+
+  [[tool.towncrier.type]]
+  directory = "feature"
+  name = "Features"
+  showcontent = true
+
+  [[tool.towncrier.type]]
+  directory = "bugfix"
+  name = "Bug Fixes"
+  showcontent = true
+
+  [[tool.towncrier.type]]
+  directory = "vendor"
+  name = "Vendored Libraries"
+  showcontent = true
+
+  [[tool.towncrier.type]]
+  directory = "doc"
+  name = "Improved Documentation"
+  showcontent = true
+
+  [[tool.towncrier.type]]
+  directory = "trivial"
+  name = "Trivial Changes"
+  showcontent = false

setup.py

@@ -20,7 +20,7 @@ setup(
         ],
     },
     zip_safe=False,
-    install_requires=['execnet>=1.1', 'pytest>=2.7.0', 'py>=1.4.22'],
+    install_requires=['execnet>=1.1', 'pytest>=3.0.0', 'py>=1.4.22'],
     setup_requires=['setuptools_scm'],
     classifiers=[
         'Development Status :: 5 - Production/Stable',

testing/acceptance_test.py

@@ -10,7 +10,9 @@ class TestDistribution:
         """)
         result = testdir.runpytest(p1, "-n1")
         assert result.ret == 0
-        result.stdout.fnmatch_lines(["*1 passed*", ])
+        result.stdout.fnmatch_lines([
+            "*1 passed*",
+        ])
 
     def test_n1_fail(self, testdir):
         p1 = testdir.makepyfile("""
@@ -19,7 +21,9 @@ class TestDistribution:
         """)
         result = testdir.runpytest(p1, "-n1")
         assert result.ret == 1
-        result.stdout.fnmatch_lines(["*1 failed*", ])
+        result.stdout.fnmatch_lines([
+            "*1 failed*",
+        ])
 
     def test_n1_import_error(self, testdir):
         p1 = testdir.makepyfile("""
@@ -30,7 +34,7 @@ class TestDistribution:
         result = testdir.runpytest(p1, "-n1")
         assert result.ret == 1
         result.stdout.fnmatch_lines([
-            "E   ImportError: *__import_of_missing_module*",
+            "E   *Error: No module named *__import_of_missing_module*",
         ])
 
     def test_n2_import_error(self, testdir):
@@ -53,7 +57,9 @@ class TestDistribution:
         """)
         result = testdir.runpytest(p1, "-n1")
         assert result.ret == 0
-        result.stdout.fnmatch_lines(["*1 skipped*", ])
+        result.stdout.fnmatch_lines([
+            "*1 skipped*",
+        ])
 
     def test_manytests_to_one_import_error(self, testdir):
         p1 = testdir.makepyfile("""
@@ -64,11 +70,12 @@ class TestDistribution:
         result = testdir.runpytest(p1, '--tx=popen', '--tx=popen')
         assert result.ret in (1, 2)
         result.stdout.fnmatch_lines([
-            "E   ImportError: *__import_of_missing_module*",
+            "E   *Error: No module named *__import_of_missing_module*",
         ])
 
     def test_manytests_to_one_popen(self, testdir):
-        p1 = testdir.makepyfile("""
+        p1 = testdir.makepyfile(
+            """
                 import py
                 def test_fail0():
                     assert 0
@@ -108,10 +115,13 @@ class TestDistribution:
         """ % str(testdir.tmpdir))
         result = testdir.runpytest_subprocess(p1, "-n1")
         assert result.ret == 0
-        result.stdout.fnmatch_lines(["*1 passed*", ])
+        result.stdout.fnmatch_lines([
+            "*1 passed*",
+        ])
 
     def test_dist_ini_specified(self, testdir):
-        p1 = testdir.makepyfile("""
+        p1 = testdir.makepyfile(
+            """
                 import py
                 def test_fail0():
                     assert 0
@@ -207,14 +217,14 @@ class TestDistribution:
         """)
         p1 = testdir.makepyfile("def test_func(): pass")
         result = testdir.runpytest("-v", p1, '-d', '--tx=popen')
-        result.stdout.fnmatch_lines([
+        result.stdout.fnmatch_lines(
-            "*0*Python*", "*calculated result is 49*", "*1 passed*"
+            ["*0*Python*", "*calculated result is 49*", "*1 passed*"])
-        ])
         assert result.ret == 0
 
     def test_keyboardinterrupt_hooks_issue79(self, testdir):
-        testdir.makepyfile(__init__="",
+        testdir.makepyfile(
-                           test_one="""
+            __init__="",
+            test_one="""
             def test_hello():
                 raise KeyboardInterrupt()
         """)
@@ -273,8 +283,9 @@ class TestDistEach:
                 py.test.skip("%s not found" % name)
             interpreters.append(interp)
 
-        testdir.makepyfile(__init__="",
+        testdir.makepyfile(
-                           test_one="""
+            __init__="",
+            test_one="""
             import sys
             def test_hello():
                 print("%s...%s" % sys.version_info[:2])
@@ -335,9 +346,8 @@ def test_teardownfails_one_function(testdir):
             assert 0
     """)
     result = testdir.runpytest(p, '-n1', '--tx=popen')
-    result.stdout.fnmatch_lines([
+    result.stdout.fnmatch_lines(
-        "*def teardown_function(function):*", "*1 passed*1 error*"
+        ["*def teardown_function(function):*", "*1 passed*1 error*"])
-    ])
 
 
 @py.test.mark.xfail
@@ -350,7 +360,9 @@ def test_terminate_on_hangingnode(testdir):
     """)
     result = testdir.runpytest(p, '--dist=each', '--tx=popen//id=my')
     assert result.duration < 2.0
-    result.stdout.fnmatch_lines(["*killed*my*", ])
+    result.stdout.fnmatch_lines([
+        "*killed*my*",
+    ])
 
 
 @pytest.mark.xfail(reason="works if run outside test suite", run=False)
@@ -377,7 +389,10 @@ def test_session_hooks(testdir):
             assert hasattr(sys, 'pytestsessionhooks')
     """)
     result = testdir.runpytest(p, "--dist=each", "--tx=popen")
-    result.stdout.fnmatch_lines(["*ValueError*", "*1 passed*", ])
+    result.stdout.fnmatch_lines([
+        "*ValueError*",
+        "*1 passed*",
+    ])
     assert not result.ret
     d = result.parseoutcomes()
     assert d['passed'] == 1
@@ -422,7 +437,10 @@ def test_funcarg_teardown_failure(testdir):
             pass
     """)
     result = testdir.runpytest_subprocess("--debug", p)  # , "-n1")
-    result.stdout.fnmatch_lines(["*ValueError*42*", "*1 passed*1 error*", ])
+    result.stdout.fnmatch_lines([
+        "*ValueError*42*",
+        "*1 passed*1 error*",
+    ])
     assert result.ret
 
 
@@ -453,7 +471,8 @@ def test_skipping(testdir):
 
 
 def test_issue34_pluginloading_in_subprocess(testdir):
-    testdir.tmpdir.join("plugin123.py").write(py.code.Source("""
+    testdir.tmpdir.join("plugin123.py").write(
+        py.code.Source("""
         def pytest_namespace():
             return {'sample_variable': 'testing'}
     """))
@@ -464,7 +483,9 @@ def test_issue34_pluginloading_in_subprocess(testdir):
     """)
     result = testdir.runpytest_subprocess("-n1", "-p", "plugin123")
     assert result.ret == 0
-    result.stdout.fnmatch_lines(["*1 passed*", ])
+    result.stdout.fnmatch_lines([
+        "*1 passed*",
+    ])
 
 
 def test_fixture_scope_caching_issue503(testdir):
@@ -486,7 +507,9 @@ def test_fixture_scope_caching_issue503(testdir):
     """)
     result = testdir.runpytest(p1, '-v', '-n1')
     assert result.ret == 0
-    result.stdout.fnmatch_lines(["*2 passed*", ])
+    result.stdout.fnmatch_lines([
+        "*2 passed*",
+    ])
 
 
 def test_issue_594_random_parametrize(testdir):

testing/test_looponfail.py

@@ -268,7 +268,7 @@ class TestFunctional:
         """)
         child = testdir.spawn_pytest("-f %s" % p)
         child.expect("1 xpass")
-        child.expect("### LOOPONFAILING ####")
+        # child.expect("### LOOPONFAILING ####")
         child.expect("waiting for changes")
         child.kill(15)
 

testing/test_plugin.py

@@ -20,6 +20,10 @@ def test_dist_options(testdir):
     check_options(config)
     assert config.option.dist == "load"
     assert config.option.tx == ['popen'] * 2
+    config = testdir.parseconfigure("--numprocesses", "2")
+    check_options(config)
+    assert config.option.dist == "load"
+    assert config.option.tx == ['popen'] * 2
     config = testdir.parseconfigure("-d")
     check_options(config)
     assert config.option.dist == "load"

testing/test_remote.py

@@ -79,6 +79,62 @@ def test_remoteinitconfig(testdir):
 
 
 class TestReportSerialization:
+    def test_xdist_report_longrepr_reprcrash_130(self, testdir):
+        reprec = testdir.inline_runsource("""
+                    import py
+                    def test_fail(): assert False, 'Expected Message'
+                """)
+        reports = reprec.getreports("pytest_runtest_logreport")
+        assert len(reports) == 3
+        rep = reports[1]
+        added_section = ('Failure Metadata', str("metadata metadata"), "*")
+        rep.longrepr.sections.append(added_section)
+        d = serialize_report(rep)
+        check_marshallable(d)
+        a = unserialize_report("testreport", d)
+        # Check assembled == rep
+        assert a.__dict__.keys() == rep.__dict__.keys()
+        for key in rep.__dict__.keys():
+            if key != 'longrepr':
+                assert getattr(a, key) == getattr(rep, key)
+        assert rep.longrepr.reprcrash.lineno == a.longrepr.reprcrash.lineno
+        assert rep.longrepr.reprcrash.message == a.longrepr.reprcrash.message
+        assert rep.longrepr.reprcrash.path == a.longrepr.reprcrash.path
+        assert rep.longrepr.reprtraceback.entrysep \
+            == a.longrepr.reprtraceback.entrysep
+        assert rep.longrepr.reprtraceback.extraline \
+            == a.longrepr.reprtraceback.extraline
+        assert rep.longrepr.reprtraceback.style \
+            == a.longrepr.reprtraceback.style
+        assert rep.longrepr.sections == a.longrepr.sections
+        assert rep.longrepr.reprtraceback.reprentries \
+            == a.longrepr.reprtraceback.reprentries
+        # Missing section attribute PR171
+        assert added_section in a.longrepr.sections
+
+    def test_reprentries_serialization_170(self, testdir):
+        reprec = testdir.inline_runsource("""
+                            def test_fail():
+                                x = 0
+                                assert x
+                        """, '--showlocals', '-n1')
+        reports = reprec.getreports("pytest_runtest_logreport")
+        assert len(reports) == 3
+        rep = reports[1]
+        d = serialize_report(rep)
+        a = unserialize_report("testreport", d)
+
+        rep_entries = rep.longrepr.reprtraceback.reprentries
+        a_entries = a.longrepr.reprtraceback.reprentries
+        assert rep_entries == a_entries
+        for i in range(len(a_entries)):
+            assert rep_entries[i].lines == a_entries[i].lines
+            assert rep_entries[i].localssep == a_entries[i].localssep
+            assert rep_entries[i].reprfileloc == a_entries[i].reprfileloc
+            assert rep_entries[i].reprfuncargs == a_entries[i].reprfuncargs
+            assert rep_entries[i].reprlocals == a_entries[i].reprlocals
+            assert rep_entries[i].style == a_entries[i].style
+
     def test_itemreport_outcomes(self, testdir):
         reprec = testdir.inline_runsource("""
             import py
@@ -108,7 +164,7 @@ class TestReportSerialization:
             assert newrep.when == rep.when
             assert newrep.keywords == rep.keywords
             if rep.failed:
-                assert newrep.longrepr == str(rep.longrepr)
+                assert newrep.longreprtext == rep.longreprtext
 
     def test_collectreport_passed(self, testdir):
         reprec = testdir.inline_runsource("def test_func(): pass")

tox.ini

@@ -1,10 +1,10 @@
 [tox]
 # if you change the envlist, please update .travis.yml file as well
 envlist=
-  py{26,27,34,35}-pytest{27,28,29,30}
+  py{26,27,34,35,36}-pytest{30}
-  py{27,35}-pytest28-pexpect
+  py{27,35}-pytest{30}-pexpect
   flakes
-  readme  
+  readme
 
 
 [testenv]
@@ -14,13 +14,10 @@ deps =
   pycmd
   # to avoid .eggs
   setuptools_scm
-  pytest27: pytest~=2.7.2
-  pytest28: pytest~=2.8.7
-  pytest29: pytest~=2.9.2
   pytest30: pytest~=3.0.5
   pexpect: pexpect
 platform=
-  pexpect: linux|darwin    
+  pexpect: linux|darwin
 commands=
   # always clean to avoid code unmarshal mismatch on old python/pytest
   py.cleanup -aq

xdist/newhooks.py

@@ -9,7 +9,7 @@ with the worker instance that executed the hook originally:
 You can use this hooks just as you would use normal pytest hooks, but some care
 must be taken in plugins in case ``xdist`` is not installed. Please see:
 
-    http://pytest.org/latest/writing_plugins.html#optionally-using-hooks-from-3rd-party-plugins
+    http://pytest.org/en/latest/writing_plugins.html#optionally-using-hooks-from-3rd-party-plugins
 """
 import pytest
 

xdist/plugin.py

@@ -20,7 +20,7 @@ def parse_numprocesses(s):
 def pytest_addoption(parser):
     group = parser.getgroup("xdist", "distributed and subprocess testing")
     group._addoption(
-        '-n', dest="numprocesses", metavar="numprocesses",
+        '-n', '--numprocesses', dest="numprocesses", metavar="numprocesses",
         action="store",
         type=parse_numprocesses,
         help="shortcut for '--dist=load --tx=NUM*popen', "

xdist/remote.py

@@ -98,10 +98,34 @@ class SlaveInteractor:
 
 
 def serialize_report(rep):
+    def disassembled_report(rep):
+        reprtraceback = rep.longrepr.reprtraceback.__dict__
+        reprcrash = rep.longrepr.reprcrash.__dict__
+
+        new_entries = []
+        for entry in reprtraceback['reprentries']:
+            new_entry = entry.__dict__
+            for key, value in new_entry.items():
+                if hasattr(value, '__dict__'):
+                    new_entry[key] = value.__dict__
+            new_entries.append(new_entry)
+
+        reprtraceback['reprentries'] = new_entries
+
+        return {
+            'reprcrash': reprcrash,
+            'reprtraceback': reprtraceback,
+            'sections': rep.longrepr.sections
+        }
+
     import py
     d = rep.__dict__.copy()
     if hasattr(rep.longrepr, 'toterminal'):
-        d['longrepr'] = str(rep.longrepr)
+        if hasattr(rep.longrepr, 'reprtraceback') \
+                and hasattr(rep.longrepr, 'reprcrash'):
+            d['longrepr'] = disassembled_report(rep)
+        else:
+            d['longrepr'] = str(rep.longrepr)
     else:
         d['longrepr'] = rep.longrepr
     for name in d:

xdist/slavemanage.py

@@ -327,7 +327,52 @@ class SlaveController(object):
 
 
 def unserialize_report(name, reportdict):
+    def assembled_report(reportdict):
+        from _pytest._code.code import (
+            ReprEntry,
+            ReprExceptionInfo,
+            ReprFileLocation,
+            ReprFuncArgs,
+            ReprLocals,
+            ReprTraceback
+        )
+        if reportdict['longrepr']:
+            if 'reprcrash' and 'reprtraceback' in reportdict['longrepr']:
+
+                reprtraceback = reportdict['longrepr']['reprtraceback']
+                reprcrash = reportdict['longrepr']['reprcrash']
+
+                unserialized_entries = []
+                for entry in reprtraceback['reprentries']:
+                    reprfuncargs, reprfileloc, reprlocals = None, None, None
+                    if entry['reprfuncargs']:
+                        reprfuncargs = ReprFuncArgs(**entry['reprfuncargs'])
+                    if entry['reprfileloc']:
+                        reprfileloc = ReprFileLocation(**entry['reprfileloc'])
+                    if entry['reprlocals']:
+                        reprlocals = ReprLocals(entry['reprlocals']['lines'])
+
+                    reprentry = ReprEntry(
+                        lines=entry['lines'],
+                        reprfuncargs=reprfuncargs,
+                        reprlocals=reprlocals,
+                        filelocrepr=reprfileloc,
+                        style=entry['style']
+                    )
+                    unserialized_entries.append(reprentry)
+                reprtraceback['reprentries'] = unserialized_entries
+
+                exception_info = ReprExceptionInfo(
+                    reprtraceback=ReprTraceback(**reprtraceback),
+                    reprcrash=ReprFileLocation(**reprcrash),
+                )
+
+                for section in reportdict['longrepr']['sections']:
+                    exception_info.addsection(*section)
+                reportdict['longrepr'] = exception_info
+        return reportdict
+
     if name == "testreport":
-        return runner.TestReport(**reportdict)
+        return runner.TestReport(**assembled_report(reportdict))
     elif name == "collectreport":
-        return runner.CollectReport(**reportdict)
+        return runner.CollectReport(**assembled_report(reportdict))