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# mode: run
# tag: coverage,trace,nogil
"""
PYTHON setup.py build_ext -i
PYTHON coverage_test.py
"""
######## setup.py ########
from distutils.core import setup
from Cython.Build import cythonize
setup(ext_modules = cythonize([
'coverage_test_*.pyx',
]))
######## .coveragerc ########
[run]
plugins = Cython.Coverage
######## coverage_test_nogil.pyx ########
# cython: linetrace=True
# distutils: define_macros=CYTHON_TRACE=1 CYTHON_TRACE_NOGIL=1
cdef int func1(int a, int b) nogil:
cdef int x # 5
with gil: # 6
x = 1 # 7
cdef int c = func2(a) + b # 8
return x + c # 9
cdef int func2(int a) with gil:
return a * 2 # 13
def call(int a, int b):
a, b = b, a # 17
with nogil: # 18
result = func1(b, a) # 19
return result # 20
######## coverage_test.py ########
import os.path
try:
# io.StringIO in Py2.x cannot handle str ...
from StringIO import StringIO
except ImportError:
from io import StringIO
from coverage import coverage
import coverage_test_nogil
assert not any(coverage_test_nogil.__file__.endswith(ext)
for ext in '.py .pyc .pyo .pyw .pyx .pxi'.split()), \
coverage_test_nogil.__file__
def run_coverage(module):
module_name = module.__name__
module_path = module_name + '.pyx'
cov = coverage()
cov.start()
assert module.call(1, 2) == (1 * 2) + 2 + 1
cov.stop()
out = StringIO()
cov.report(file=out)
#cov.report([module], file=out)
lines = out.getvalue().splitlines()
assert any(module_path in line for line in lines), \
"'%s' not found in coverage report:\n\n%s" % (module_path, out.getvalue())
mod_file, exec_lines, excl_lines, missing_lines, _ = cov.analysis2(os.path.abspath(module_path))
assert module_path in mod_file
executed = set(exec_lines) - set(missing_lines)
# check that everything that runs with the gil owned was executed
assert all(line in executed for line in [13, 17, 18, 20]), '%s / %s' % (exec_lines, missing_lines)
# check that everything that runs in nogil sections was executed
assert all(line in executed for line in [6, 7, 8, 9]), '%s / %s' % (exec_lines, missing_lines)
if __name__ == '__main__':
run_coverage(coverage_test_nogil)
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