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# mode: run
# tag: coverage,trace
"""
PYTHON -m pip install .
PYTHON setup.py build_ext --inplace
PYTHON -m coverage run --source=pkg coverage_test.py
PYTHON collect_coverage.py
"""
######## setup.py ########
from setuptools import Extension, find_packages, setup
from Cython.Build import cythonize
MODULES = [
Extension("pkg.module1", ["src/pkg/module1.pyx"]),
]
setup(
name="pkg",
zip_safe=False,
packages=find_packages('src'),
package_data={'pkg': ['*.pxd', '*.pyx']},
package_dir={'': 'src'},
ext_modules= cythonize(MODULES)
)
######## .coveragerc ########
[run]
plugins = Cython.Coverage
######## src/pkg/__init__.py ########
######## src/pkg/module1.pyx ########
# cython: linetrace=True
# distutils: define_macros=CYTHON_TRACE=1
def func1(int a, int b):
cdef int x = 1 # 5
c = func2(a) + b # 6
return x + c # 7
def func2(int a):
return a * 2 # 11
######## coverage_test.py ########
import os.path
from pkg import module1
assert not any(
module1.__file__.endswith(ext)
for ext in '.py .pyc .pyo .pyw .pyx .pxi'.split()
), module.__file__
def run_coverage(module):
assert module.func1(1, 2) == (1 * 2) + 2 + 1
assert module.func2(2) == 2 * 2
if __name__ == '__main__':
run_coverage(module1)
######## collect_coverage.py ########
import re
import sys
import os
import os.path
import subprocess
from glob import iglob
def run_coverage_command(*command):
env = dict(os.environ, LANG='', LC_ALL='C')
process = subprocess.Popen(
[sys.executable, '-m', 'coverage'] + list(command),
stdout=subprocess.PIPE, env=env)
stdout, _ = process.communicate()
return stdout
def run_report():
stdout = run_coverage_command('report', '--show-missing')
stdout = stdout.decode('iso8859-1') # 'safe' decoding
lines = stdout.splitlines()
print(stdout)
module_path = 'module1.pyx'
assert any(module_path in line for line in lines), (
"'%s' not found in coverage report:\n\n%s" % (module_path, stdout))
files = {}
line_iter = iter(lines)
for line in line_iter:
if line.startswith('---'):
break
extend = [''] * 2
for line in line_iter:
if not line or line.startswith('---'):
continue
name, statements, missed, covered, _missing = (line.split(None, 4) + extend)[:5]
missing = []
for start, end in re.findall('([0-9]+)(?:-([0-9]+))?', _missing):
if end:
missing.extend(range(int(start), int(end)+1))
else:
missing.append(int(start))
files[os.path.basename(name)] = (statements, missed, covered, missing)
assert 5 not in files[module_path][-1], files[module_path]
assert 6 not in files[module_path][-1], files[module_path]
assert 7 not in files[module_path][-1], files[module_path]
assert 11 not in files[module_path][-1], files[module_path]
def run_xml_report():
stdout = run_coverage_command('xml', '-o', '-')
print(stdout)
import xml.etree.ElementTree as etree
data = etree.fromstring(stdout)
files = {}
for module in data.iterfind('.//class'):
files[module.get('filename').replace('\\', '/')] = dict(
(int(line.get('number')), int(line.get('hits')))
for line in module.findall('lines/line')
)
module_path = 'src/pkg/module1.pyx'
assert files[module_path][5] > 0, files[module_path]
assert files[module_path][6] > 0, files[module_path]
assert files[module_path][7] > 0, files[module_path]
assert files[module_path][11] > 0, files[module_path]
def run_html_report():
from collections import defaultdict
stdout = run_coverage_command('html', '-d', 'html')
# coverage 6.1+ changed the order of the attributes => need to parse them separately
_parse_id = re.compile(r'id=["\'][^0-9"\']*(?P<id>[0-9]+)[^0-9"\']*["\']').search
_parse_state = re.compile(r'class=["\'][^"\']*(?P<state>mis|run|exc)[^"\']*["\']').search
files = {}
for file_path in iglob('html/*.html'):
with open(file_path) as f:
page = f.read()
report = defaultdict(set)
for line in re.split(r'id=["\']source["\']', page)[-1].splitlines():
lineno = _parse_id(line)
state = _parse_state(line)
if not lineno or not state:
continue
report[state.group('state')].add(int(lineno.group('id')))
files[file_path] = report
file_report = [data for path, data in files.items() if 'module1' in path][0]
executed, missing = file_report["run"], file_report["mis"]
assert executed
assert 5 in executed, executed
assert 6 in executed, executed
assert 7 in executed, executed
assert 11 in executed, executed
if __name__ == '__main__':
run_report()
run_xml_report()
run_html_report()
|
