mitogen/tests/minify_test.py

113 lines
3.5 KiB
Python

import codecs
import glob
import pprint
import sys
import mitogen.minify
import testlib
def read_sample(fname):
sample_path = testlib.data_path('minimize_samples/' + fname)
sample_file = open(sample_path)
sample = sample_file.read()
sample_file.close()
return sample
class MinimizeSourceTest(testlib.TestCase):
func = staticmethod(mitogen.minify.minimize_source)
def test_class(self):
original = read_sample('class.py')
expected = read_sample('class_min.py')
self.assertEqual(expected, self.func(original))
def test_comment(self):
original = read_sample('comment.py')
expected = read_sample('comment_min.py')
self.assertEqual(expected, self.func(original))
def test_def(self):
original = read_sample('def.py')
expected = read_sample('def_min.py')
self.assertEqual(expected, self.func(original))
def test_hashbang(self):
original = read_sample('hashbang.py')
expected = read_sample('hashbang_min.py')
self.assertEqual(expected, self.func(original))
def test_mod(self):
original = read_sample('mod.py')
expected = read_sample('mod_min.py')
self.assertEqual(expected, self.func(original))
def test_pass(self):
original = read_sample('pass.py')
expected = read_sample('pass_min.py')
self.assertEqual(expected, self.func(original))
def test_obstacle_course(self):
original = read_sample('obstacle_course.py')
expected = read_sample('obstacle_course_min.py')
self.assertEqual(expected, self.func(original))
class MitogenCoreTest(testlib.TestCase):
# Verify minimize_source() succeeds for all built-in modules.
func = staticmethod(mitogen.minify.minimize_source)
def read_source(self, name):
fp = codecs.open(name, encoding='utf-8')
try:
return fp.read()
finally:
fp.close()
def _test_syntax_valid(self, minified, name):
compile(minified, name, 'exec')
def _test_line_counts_match(self, original, minified):
self.assertEqual(original.count('\n'),
minified.count('\n'))
def _test_non_blank_lines_match(self, name, original, minified):
# Verify first token matches. We just want to ensure line numbers make
# sense, this is good enough.
olines = original.splitlines()
mlines = minified.splitlines()
for i, (orig, mini) in enumerate(zip(olines, mlines)):
if i < 2:
assert orig == mini
continue
owords = orig.split()
mwords = mini.split()
assert len(mwords) == 0 or (mwords[0] == owords[0]), pprint.pformat({
'line': i+1,
'filename': name,
'owords': owords,
'mwords': mwords,
})
PY_24_25_SKIP = [
# cProfile unsupported on 2.4, 2.6+ syntax is fine here.
'mitogen/profiler.py',
]
def test_minify_all(self):
for name in glob.glob('mitogen/*.py'):
if name in self.PY_24_25_SKIP and sys.version_info < (2, 6):
continue
original = self.read_source(name)
try:
minified = self.func(original)
except Exception:
print('file was: ' + name)
raise
self._test_syntax_valid(minified, name)
self._test_line_counts_match(original, minified)
self._test_non_blank_lines_match(name, original, minified)