Enable pypy as a required Travis test (GH-3392)

Reasoning being that this make it easier to catch pypy3
regressions as they happen.

* Fixed some very simple pypy3 failures (largely to do with
  different exception strings)
* Splits pypy3_bugs.txt into three files
  - one for bugs that cause hard crashes (which we don't want to
    run in Travis at all);
  - one for bugs that are probably unfixable because they're just
    due to implementation details (e.g. when destructors are
    called).
  - all other bugs remain in pypy3_bugs.txt
  (The categorization has been done fairly quickly, so some bugs
  may be in the wrong place)
* Made sure (hopefully) all bugs are now categorized, so a basic
  runtests.py with pypy3 should hopefully pass
* Changed pypy3 to be required in Travis
* Added an extra (optional) test that runs through pypy3_bugs.txt.
  The majority of this is expected to fail. This requires an
  extra option to runtest.py "--listfile", which just runs through
  the tests listed in the file.

I haven't made pypy2 a required test in this commit - since Python2 support is deprecated soon, there seemed limited value in putting much effort into pypy2.

Added faulthandler to runtests in the hope of being able to pin-down segmentation faults better on Travis

FileListExcluder matches regexes, not just name. Uses the same mechanism as is used for processing string passed on commandline

1 files changed, 4 insertions, 4 deletions

diff --git a/tests/run/powop.pyx b/tests/run/powop.pyx
index 966336c2a..3f9fdd077 100644
--- a/tests/run/powop.pyx
+++ b/tests/run/powop.pyx
@@ -123,9 +123,9 @@ def optimised_pow2(n):
     0.5
     >>> optimised_pow2(0.5) == 2 ** 0.5
     True
-    >>> optimised_pow2('test')
+    >>> optimised_pow2('test') # doctest: +ELLIPSIS
     Traceback (most recent call last):
-    TypeError: unsupported operand type(s) for ** or pow(): 'int' and 'str'
+    TypeError: ...operand... **...
     """
     if isinstance(n, (int, long)) and 0 <= n < 1000:
         assert isinstance(2.0 ** n, float), 'float %s' % n
@@ -153,9 +153,9 @@ def optimised_pow2_inplace(n):
     0.5
     >>> optimised_pow2_inplace(0.5) == 2 ** 0.5
     True
-    >>> optimised_pow2_inplace('test')
+    >>> optimised_pow2_inplace('test') # doctest: +ELLIPSIS
     Traceback (most recent call last):
-    TypeError: unsupported operand type(s) for ** or pow(): 'int' and 'str'
+    TypeError: ...operand... **...
     """
     x = 2
     x **= n