make "--runxfail" turn imperative pytest.xfail calls into no ops

(it already did neutralize pytest.mark.xfail markers)

CHANGELOG

@@ -4,6 +4,9 @@ Changes between 2.4.2 and 2.4.3
 - In assertion rewriting mode on Python 2, fix the detection of coding
   cookies. See issue #330.
 
+- make "--runxfail" turn imperative pytest.xfail calls into no ops
+  (it already did neutralize pytest.mark.xfail markers)
+
 Changes between 2.4.1 and 2.4.2
 -----------------------------------
 

_pytest/skipping.py

@@ -10,6 +10,14 @@ def pytest_addoption(parser):
            help="run tests even if they are marked xfail")
 
 def pytest_configure(config):
+    if config.option.runxfail:
+        old = pytest.xfail
+        config._cleanup.append(lambda: setattr(pytest, "xfail", old))
+        def nop(*args, **kwargs):
+            pass
+        nop.Exception = XFailed
+        setattr(pytest, "xfail", nop)
+
     config.addinivalue_line("markers",
         "skipif(condition): skip the given test function if eval(condition) "
         "results in a True value.  Evaluation happens within the "

setup.py

@@ -1,6 +1,20 @@
 import os, sys
 from setuptools import setup, Command
 
+classifiers=['Development Status :: 6 - Mature',
+             'Intended Audience :: Developers',
+             'License :: OSI Approved :: MIT License',
+             'Operating System :: POSIX',
+             'Operating System :: Microsoft :: Windows',
+             'Operating System :: MacOS :: MacOS X',
+             'Topic :: Software Development :: Testing',
+             'Topic :: Software Development :: Libraries',
+             'Topic :: Utilities',
+             'Programming Language :: Python :: 2',
+             'Programming Language :: Python :: 3'] + [
+            ("Programming Language :: Python :: %s" % x) for x in
+                "2.4 2.5 2.6 2.7 3.0 3.1 3.2 3.3".split()]
+
 long_description = open("README.rst").read()
 def main():
     install_requires = ["py>=1.4.17"]
@@ -20,22 +34,10 @@ def main():
         author='Holger Krekel, Benjamin Peterson, Ronny Pfannschmidt, Floris Bruynooghe and others',
         author_email='holger at merlinux.eu',
         entry_points= make_entry_points(),
+        classifiers=classifiers,
         cmdclass = {'test': PyTest},
         # the following should be enabled for release
         install_requires=install_requires,
-        classifiers=['Development Status :: 6 - Mature',
-                     'Intended Audience :: Developers',
-                     'License :: OSI Approved :: MIT License',
-                     'Operating System :: POSIX',
-                     'Operating System :: Microsoft :: Windows',
-                     'Operating System :: MacOS :: MacOS X',
-                     'Topic :: Software Development :: Testing',
-                     'Topic :: Software Development :: Libraries',
-                     'Topic :: Utilities',
-                     'Programming Language :: Python :: 2',
-                     'Programming Language :: Python :: 3'] + [
-        ("Programming Language :: Python :: %s" % x) for x in
-            "2.4 2.5 2.6 2.7 3.0 3.1 3.2 3.3".split()],
         packages=['_pytest', '_pytest.assertion'],
         py_modules=['pytest'],
         zip_safe=False,

testing/test_skipping.py

@@ -159,13 +159,14 @@ class TestXFail:
             @pytest.mark.xfail
             def test_func():
                 assert 0
+            def test_func2():
+                pytest.xfail("hello")
         """)
         result = testdir.runpytest("--runxfail")
-        assert result.ret == 1
         result.stdout.fnmatch_lines([
             "*def test_func():*",
             "*assert 0*",
-            "*1 failed*",
+            "*1 failed*1 pass*",
         ])
 
     def test_xfail_evalfalse_but_fails(self, testdir):
@@ -261,10 +262,7 @@ class TestXFail:
             "*reason:*hello*",
         ])
         result = testdir.runpytest(p, "--runxfail")
-        result.stdout.fnmatch_lines([
-            "*def test_this():*",
-            "*pytest.xfail*",
-        ])
+        result.stdout.fnmatch_lines("*1 pass*")
 
     def test_xfail_imperative_in_setup_function(self, testdir):
         p = testdir.makepyfile("""
@@ -285,10 +283,10 @@ class TestXFail:
             "*reason:*hello*",
         ])
         result = testdir.runpytest(p, "--runxfail")
-        result.stdout.fnmatch_lines([
-            "*def setup_function(function):*",
-            "*pytest.xfail*",
-        ])
+        result.stdout.fnmatch_lines("""
+            *def test_this*
+            *1 fail*
+        """)
 
     def xtest_dynamic_xfail_set_during_setup(self, testdir):
         p = testdir.makepyfile("""