diff options
Diffstat (limited to 'Lib/doctest.py')
| -rw-r--r-- | Lib/doctest.py | 48 |
1 files changed, 37 insertions, 11 deletions
diff --git a/Lib/doctest.py b/Lib/doctest.py index e189c8feba..3f0d9d9ca5 100644 --- a/Lib/doctest.py +++ b/Lib/doctest.py @@ -314,6 +314,32 @@ def _comment_line(line): else: return '#' +def _strip_exception_details(msg): + # Support for IGNORE_EXCEPTION_DETAIL. + # Get rid of everything except the exception name; in particular, drop + # the possibly dotted module path (if any) and the exception message (if + # any). We assume that a colon is never part of a dotted name, or of an + # exception name. + # E.g., given + # "foo.bar.MyError: la di da" + # return "MyError" + # Or for "abc.def" or "abc.def:\n" return "def". + + start, end = 0, len(msg) + # The exception name must appear on the first line. + i = msg.find("\n") + if i >= 0: + end = i + # retain up to the first colon (if any) + i = msg.find(':', 0, end) + if i >= 0: + end = i + # retain just the exception name + i = msg.rfind('.', 0, end) + if i >= 0: + start = i+1 + return msg[start: end] + class _OutputRedirectingPdb(pdb.Pdb): """ A specialized version of the python debugger that redirects stdout @@ -413,7 +439,7 @@ class Example: zero-based, with respect to the beginning of the DocTest. - indent: The example's indentation in the DocTest string. - I.e., the number of space characters that preceed the + I.e., the number of space characters that precede the example's first prompt. - options: A dictionary mapping from option flags to True or @@ -458,7 +484,6 @@ class Example: return hash((self.source, self.want, self.lineno, self.indent, self.exc_msg)) - class DocTest: """ A collection of doctest examples that should be run in a single @@ -554,7 +579,7 @@ class DocTestParser: # Want consists of any non-blank lines that do not start with PS1. (?P<want> (?:(?![ ]*$) # Not a blank line (?![ ]*>>>) # Not a line starting with PS1 - .*$\n? # But any other line + .+$\n? # But any other line )*) ''', re.MULTILINE | re.VERBOSE) @@ -894,7 +919,7 @@ class DocTestFinder: if '__name__' not in globs: globs['__name__'] = '__main__' # provide a default module name - # Recursively expore `obj`, extracting DocTests. + # Recursively explore `obj`, extracting DocTests. tests = [] self._find(tests, obj, name, module, source_lines, globs, {}) # Sort the tests by alpha order of names, for consistency in @@ -1321,10 +1346,9 @@ class DocTestRunner: # Another chance if they didn't care about the detail. elif self.optionflags & IGNORE_EXCEPTION_DETAIL: - m1 = re.match(r'(?:[^:]*\.)?([^:]*:)', example.exc_msg) - m2 = re.match(r'(?:[^:]*\.)?([^:]*:)', exc_msg) - if m1 and m2 and check(m1.group(1), m2.group(1), - self.optionflags): + if check(_strip_exception_details(example.exc_msg), + _strip_exception_details(exc_msg), + self.optionflags): outcome = SUCCESS # Report the outcome. @@ -1367,7 +1391,7 @@ class DocTestRunner: m = self.__LINECACHE_FILENAME_RE.match(filename) if m and m.group('name') == self.test.name: example = self.test.examples[int(m.group('examplenum'))] - return example.source.splitlines(True) + return example.source.splitlines(keepends=True) else: return self.save_linecache_getlines(filename, module_globals) @@ -1413,6 +1437,7 @@ class DocTestRunner: # Note that the interactive output will go to *our* # save_stdout, even if that's not the real sys.stdout; this # allows us to write test cases for the set_trace behavior. + save_trace = sys.gettrace() save_set_trace = pdb.set_trace self.debugger = _OutputRedirectingPdb(save_stdout) self.debugger.reset() @@ -1432,6 +1457,7 @@ class DocTestRunner: finally: sys.stdout = save_stdout pdb.set_trace = save_set_trace + sys.settrace(save_trace) linecache.getlines = self.save_linecache_getlines sys.displayhook = save_displayhook if clear_globs: @@ -1628,8 +1654,8 @@ class OutputChecker: # Check if we should use diff. if self._do_a_fancy_diff(want, got, optionflags): # Split want & got into lines. - want_lines = want.splitlines(True) # True == keep line ends - got_lines = got.splitlines(True) + want_lines = want.splitlines(keepends=True) + got_lines = got.splitlines(keepends=True) # Use difflib to find their differences. if optionflags & REPORT_UDIFF: diff = difflib.unified_diff(want_lines, got_lines, n=2) |