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  1. +4 −0 .gitignore
  2. +202 −0 LICENSE
  3. +2 −0 README.rst
  4. 0 quickunit/__init__.py
  5. +114 −0 quickunit/diff.py
  6. +137 −0 quickunit/plugin.py
  7. +17 −0 quickunit/utils.py
  8. +36 −0 setup.py
4 .gitignore
@@ -0,0 +1,4 @@
+*.pyc
+/dist
+/build
+*.egg*
202 LICENSE
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+
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2 README.rst
@@ -0,0 +1,2 @@
+nose-quickunit
+==============
0 quickunit/__init__.py
No changes.
114 quickunit/diff.py
@@ -0,0 +1,114 @@
+"""
+quickunit.diff
+~~~~~~~~~~~~~~
+
+This is an adaptation from lodgeit's lib/diff.py
+
+:copyright: 2007 by Armin Ronacher.
+:license: BSD
+"""
+
+import re
+
+
+class DiffParser(object):
+ """
+ This is based on code from the open source project, "lodgeit".
+ """
+ _chunk_re = re.compile(r'@@ -(\d+)(?:,(\d+))? \+(\d+)(?:,(\d+))? @@')
+
+ def __init__(self, udiff):
+ """:param udiff: a text in udiff format"""
+ self.lines = udiff.splitlines()
+
+ def _extract_rev(self, line1, line2):
+ def _extract(line):
+ parts = line.split(None, 1)
+ return parts[0], (len(parts) == 2 and parts[1] or None)
+ try:
+ if line1.startswith('--- ') and line2.startswith('+++ '):
+ return _extract(line1[4:]), _extract(line2[4:])
+ except (ValueError, IndexError):
+ pass
+ return (None, None), (None, None)
+
+ def parse(self):
+ in_header = True
+ header = []
+ lineiter = iter(self.lines)
+ files = []
+ try:
+ line = lineiter.next()
+ while 1:
+ # continue until we found the old file
+ if not line.startswith('--- '):
+ if in_header:
+ header.append(line)
+ line = lineiter.next()
+ continue
+
+ if header and all(x.strip() for x in header):
+ # files.append({'is_header': True, 'lines': header})
+ header = []
+
+ in_header = False
+ chunks = []
+ old, new = self._extract_rev(line, lineiter.next())
+ files.append({
+ 'is_header': False,
+ 'old_filename': old[0],
+ 'old_revision': old[1],
+ 'new_filename': new[0],
+ 'new_revision': new[1],
+ 'chunks': chunks
+ })
+
+ line = lineiter.next()
+ while line:
+ match = self._chunk_re.match(line)
+ if not match:
+ in_header = True
+ break
+
+ lines = []
+ chunks.append(lines)
+
+ old_line, old_end, new_line, new_end = \
+ [int(x or 1) for x in match.groups()]
+ old_line -= 1
+ new_line -= 1
+ old_end += old_line
+ new_end += new_line
+ line = lineiter.next()
+
+ while old_line < old_end or new_line < new_end:
+ if line:
+ command, line = line[0], line[1:]
+ else:
+ command = ' '
+ affects_old = affects_new = False
+
+ if command == '+':
+ affects_new = True
+ action = 'add'
+ elif command == '-':
+ affects_old = True
+ action = 'del'
+ else:
+ affects_old = affects_new = True
+ action = 'unmod'
+
+ old_line += affects_old
+ new_line += affects_new
+ lines.append({
+ 'old_lineno': affects_old and old_line or u'',
+ 'new_lineno': affects_new and new_line or u'',
+ 'action': action,
+ 'line': line
+ })
+ line = lineiter.next()
+
+ except StopIteration:
+ pass
+
+ return files
137 quickunit/plugin.py
@@ -0,0 +1,137 @@
+"""
+quickunit.plugin
+~~~~~~~~~~~~~~~~
+
+:copyright: 2011 DISQUS.
+:license: BSD
+"""
+
+from __future__ import absolute_import
+
+import inspect
+import logging
+import os
+import sys
+
+from collections import defaultdict
+from nose.plugins.base import Plugin
+from subprocess import Popen, PIPE, STDOUT
+
+from quickunit.diff import DiffParser
+from quickunit.utils import is_py_script
+
+
+class QuickUnitPlugin(Plugin):
+ """
+ We find the diff with the parent revision for diff-tests with::
+
+ git diff origin/master
+
+ If you run with the discover flag, it will attempt to discovery
+ any tests that are required to run to test the changes in your current
+ branch, against those of origin/master.
+
+ """
+ score = 1000
+ name = 'quickunit'
+
+ def options(self, parser, env):
+ Plugin.options(self, parser, env)
+ parser.add_option("--quickunit-prefix", dest="quickunit_prefix", default="tests/unit/")
+
+ def configure(self, options, config):
+ Plugin.configure(self, options, config)
+ if not self.enabled:
+ return
+
+ self.prefix = options.quickunit_prefix
+ self.parent = 'master'
+
+ self.logger = logging.getLogger(__name__)
+
+ self.pending_files = set()
+
+ # diff is a mapping of filename->set(linenos)
+ self.diff_data = defaultdict(set)
+
+ # the root directory of our diff (this is basically cwd)
+ self.root = None
+
+ def begin(self):
+ # XXX: this is pretty hacky
+ proc = Popen(['git', 'merge-base', 'HEAD', self.parent], stdout=PIPE, stderr=STDOUT)
+ self.parent_revision = proc.stdout.read().strip()
+
+ # pull in our diff
+ # git diff `git merge-base HEAD master`
+ proc = Popen(['git', 'diff', self.parent_revision], stdout=PIPE, stderr=STDOUT)
+ diff = proc.stdout.read().strip()
+
+ parser = DiffParser(diff)
+ files = list(parser.parse())
+
+ diff = self.diff_data
+ for file in files:
+ # we dont care about headers
+ if file['is_header']:
+ continue
+
+ # file was removed
+ if file['new_filename'] == '/dev/null':
+ continue
+
+ is_new_file = (file['old_filename'] == '/dev/null')
+ if is_new_file:
+ filename = file['new_filename']
+ if not filename.startswith('b/'):
+ continue
+ else:
+ filename = file['old_filename']
+ if not filename.startswith('a/'):
+ continue # ??
+
+ filename = filename[2:]
+
+ if self.root is None:
+ self.root = os.path.abspath(filename)[:-len(filename)]
+
+ # Ignore non python files
+ if not is_py_script(filename):
+ continue
+
+ new_filename = file['new_filename'][2:]
+
+ # file is new, only record diff state
+ for chunk in file['chunks']:
+ linenos = filter(bool, (l['new_lineno'] for l in chunk if l['line']))
+ diff[new_filename].update(linenos)
+
+ # we dont care about missing coverage for new code, and there
+ # wont be any "existing coverage" to check for
+ if is_new_file:
+ continue
+
+ self.pending_files.add(os.path.join(self.prefix, new_filename.rsplit('.', 1)[0]))
+
+ def wantMethod(self, method):
+ # only works with unittest compatible functions currently
+ method = getattr(sys.modules[method.im_class.__module__], method.im_class.__name__)
+
+ # check if this test was modified (e.g. added/changed)
+ filename = inspect.getfile(method)
+ if self.root and filename.startswith(self.root):
+ filename = filename[len(self.root):]
+
+ diff_data = self.diff_data[filename]
+ if diff_data:
+ lines, startlineno = inspect.getsourcelines(method)
+ for lineno in xrange(startlineno, len(lines) + startlineno):
+ if lineno in diff_data:
+ return True
+
+ if filename.startswith(self.prefix):
+ for pending in self.pending_files:
+ if filename.startwith(pending):
+ return True
+
+ return False
17 quickunit/utils.py
@@ -0,0 +1,17 @@
+import os
+import os.path
+
+
+def is_py_script(filename):
+ "Returns True if a file is a python executable."
+ if filename.endswith(".py") and os.path.exists(filename):
+ return True
+ elif not os.access(filename, os.X_OK):
+ return False
+ else:
+ try:
+ with open(filename, "r") as fp:
+ first_line = fp.readline().strip()
+ return "#!" in first_line and "python" in first_line
+ except StopIteration:
+ return False
36 setup.py
@@ -0,0 +1,36 @@
+#!/usr/bin/env python
+
+from setuptools import setup, find_packages
+
+tests_require = [
+]
+
+setup(
+ name='nose-quickunit',
+ version='0.1.0',
+ author='David Cramer',
+ author_email='dcramer@gmail.com',
+ description='A discovery plugin for Nose which relies on sane structure.',
+ url='http://github.com/dcramer/nose-quickunit',
+ packages=find_packages(exclude=["tests"]),
+ zip_safe=False,
+ install_requires=[
+ 'nose>=0.9',
+ 'simplejson',
+ ],
+ entry_points={
+ 'nose.plugins.0.10': [
+ 'quickunit = quickunit.plugin:QuickUnitPlugin'
+ ]
+ },
+ license='Apache License 2.0',
+ tests_require=tests_require,
+ extras_require={'test': tests_require},
+ include_package_data=True,
+ classifiers=[
+ 'Intended Audience :: Developers',
+ 'Intended Audience :: System Administrators',
+ 'Operating System :: OS Independent',
+ 'Topic :: Software Development'
+ ],
+)

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