Skip a test that hangs on appveyor. Could not reproduce locally.

src/greentest/greentest/__init__.py

@@ -69,6 +69,7 @@ from greentest.skipping import skipOnPyPyOnCI
 from greentest.skipping import skipOnPyPy3
 from greentest.skipping import skipIf
 from greentest.skipping import skipOnLibuv
+from greentest.skipping import skipOnLibuvOnWin
 from greentest.skipping import skipOnLibuvOnCI
 from greentest.skipping import skipOnLibuvOnCIOnPyPy
 from greentest.skipping import skipOnLibuvOnPyPyOnWin

src/greentest/greentest/skipping.py

@@ -41,6 +41,7 @@ skipOnPyPy3OnCI = _do_not_skip
 skipOnPyPy3 = _do_not_skip
 
 skipOnLibuv = _do_not_skip
+skipOnLibuvOnWin = _do_not_skip
 skipOnLibuvOnCI = _do_not_skip
 skipOnLibuvOnCIOnPyPy = _do_not_skip
 skipOnLibuvOnPyPyOnWin = _do_not_skip
@@ -91,5 +92,7 @@ if sysinfo.LIBUV:
         if sysinfo.PYPY:
             skipOnLibuvOnCIOnPyPy = unittest.skip
 
-    if sysinfo.PYPY and sysinfo.WIN:
-        skipOnLibuvOnPyPyOnWin = unittest.skip
+    if sysinfo.WIN:
+        skipOnLibuvOnWin = unittest.skip
+        if sysinfo.PYPY:
+            skipOnLibuvOnPyPyOnWin = unittest.skip

src/greentest/test__core.py

@@ -88,9 +88,13 @@ class TestWatchersDefault(TestWatchers):
     def destroyOne(self, loop):
         return
 
-# XXX: This crash may be fixed
-@greentest.skipOnLibuvOnPyPyOnWin("This crashes with PyPy 5.10.0, only on Windows. "
-                                  "See https://ci.appveyor.com/project/denik/gevent/build/1.0.1380/job/lrlvid6mkjtyrhn5#L1103")
+# XXX: The crash may be fixed? The hang showed up after the crash was
+# reproduced and fixed on linux and OS X.
+@greentest.skipOnLibuvOnWin(
+    "This crashes with PyPy 5.10.0, only on Windows. "
+    "See https://ci.appveyor.com/project/denik/gevent/build/1.0.1380/job/lrlvid6mkjtyrhn5#L1103 "
+    "It has also timed out, but only on Appveyor CPython 3.6; local CPython 3.6 does not. "
+    "See https://ci.appveyor.com/project/denik/gevent/build/1.0.1414/job/yn7yi8b53vtqs8lw#L1523")
 class TestWatchersDefaultDestroyed(TestWatchers):
 
     def _makeOne(self):