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import shutil
import os
import tempfile
import time
import Cython.Build.Dependencies
import Cython.Utils
from Cython.TestUtils import CythonTest
def fresh_cythonize(*args, **kwargs):
Cython.Utils.clear_function_caches()
Cython.Build.Dependencies._dep_tree = None # discard method caches
Cython.Build.Dependencies.cythonize(*args, **kwargs)
class TestRecythonize(CythonTest):
def setUp(self):
CythonTest.setUp(self)
self.temp_dir = (
tempfile.mkdtemp(
prefix='recythonize-test',
dir='TEST_TMP' if os.path.isdir('TEST_TMP') else None
)
)
def tearDown(self):
CythonTest.tearDown(self)
shutil.rmtree(self.temp_dir)
def test_recythonize_pyx_on_pxd_change(self):
src_dir = tempfile.mkdtemp(prefix='src', dir=self.temp_dir)
a_pxd = os.path.join(src_dir, 'a.pxd')
a_pyx = os.path.join(src_dir, 'a.pyx')
a_c = os.path.join(src_dir, 'a.c')
dep_tree = Cython.Build.Dependencies.create_dependency_tree()
with open(a_pxd, 'w') as f:
f.write('cdef int value\n')
with open(a_pyx, 'w') as f:
f.write('value = 1\n')
# The dependencies for "a.pyx" are "a.pxd" and "a.pyx".
self.assertEqual({a_pxd, a_pyx}, dep_tree.all_dependencies(a_pyx))
# Cythonize to create a.c
fresh_cythonize(a_pyx)
# Sleep to address coarse time-stamp precision.
time.sleep(1)
with open(a_c) as f:
a_c_contents1 = f.read()
with open(a_pxd, 'w') as f:
f.write('cdef double value\n')
fresh_cythonize(a_pyx)
with open(a_c) as f:
a_c_contents2 = f.read()
self.assertTrue("__pyx_v_1a_value = 1;" in a_c_contents1)
self.assertFalse("__pyx_v_1a_value = 1;" in a_c_contents2)
self.assertTrue("__pyx_v_1a_value = 1.0;" in a_c_contents2)
self.assertFalse("__pyx_v_1a_value = 1.0;" in a_c_contents1)
def test_recythonize_py_on_pxd_change(self):
src_dir = tempfile.mkdtemp(prefix='src', dir=self.temp_dir)
a_pxd = os.path.join(src_dir, 'a.pxd')
a_py = os.path.join(src_dir, 'a.py')
a_c = os.path.join(src_dir, 'a.c')
dep_tree = Cython.Build.Dependencies.create_dependency_tree()
with open(a_pxd, 'w') as f:
f.write('cdef int value\n')
with open(a_py, 'w') as f:
f.write('value = 1\n')
# The dependencies for "a.py" are "a.pxd" and "a.py".
self.assertEqual({a_pxd, a_py}, dep_tree.all_dependencies(a_py))
# Cythonize to create a.c
fresh_cythonize(a_py)
# Sleep to address coarse time-stamp precision.
time.sleep(1)
with open(a_c) as f:
a_c_contents1 = f.read()
with open(a_pxd, 'w') as f:
f.write('cdef double value\n')
fresh_cythonize(a_py)
with open(a_c) as f:
a_c_contents2 = f.read()
self.assertTrue("__pyx_v_1a_value = 1;" in a_c_contents1)
self.assertFalse("__pyx_v_1a_value = 1;" in a_c_contents2)
self.assertTrue("__pyx_v_1a_value = 1.0;" in a_c_contents2)
self.assertFalse("__pyx_v_1a_value = 1.0;" in a_c_contents1)
def test_recythonize_pyx_on_dep_pxd_change(self):
src_dir = tempfile.mkdtemp(prefix='src', dir=self.temp_dir)
a_pxd = os.path.join(src_dir, 'a.pxd')
a_pyx = os.path.join(src_dir, 'a.pyx')
b_pyx = os.path.join(src_dir, 'b.pyx')
b_c = os.path.join(src_dir, 'b.c')
dep_tree = Cython.Build.Dependencies.create_dependency_tree()
with open(a_pxd, 'w') as f:
f.write('cdef int value\n')
with open(a_pyx, 'w') as f:
f.write('value = 1\n')
with open(b_pyx, 'w') as f:
f.write('cimport a\n' + 'a.value = 2\n')
# The dependencies for "b.pyx" are "a.pxd" and "b.pyx".
self.assertEqual({a_pxd, b_pyx}, dep_tree.all_dependencies(b_pyx))
# Cythonize to create b.c
fresh_cythonize([a_pyx, b_pyx])
# Sleep to address coarse time-stamp precision.
time.sleep(1)
with open(b_c) as f:
b_c_contents1 = f.read()
with open(a_pxd, 'w') as f:
f.write('cdef double value\n')
fresh_cythonize([a_pyx, b_pyx])
with open(b_c) as f:
b_c_contents2 = f.read()
self.assertTrue("__pyx_v_1a_value = 2;" in b_c_contents1)
self.assertFalse("__pyx_v_1a_value = 2;" in b_c_contents2)
self.assertTrue("__pyx_v_1a_value = 2.0;" in b_c_contents2)
self.assertFalse("__pyx_v_1a_value = 2.0;" in b_c_contents1)
def test_recythonize_py_on_dep_pxd_change(self):
src_dir = tempfile.mkdtemp(prefix='src', dir=self.temp_dir)
a_pxd = os.path.join(src_dir, 'a.pxd')
a_pyx = os.path.join(src_dir, 'a.pyx')
b_pxd = os.path.join(src_dir, 'b.pxd')
b_py = os.path.join(src_dir, 'b.py')
b_c = os.path.join(src_dir, 'b.c')
dep_tree = Cython.Build.Dependencies.create_dependency_tree()
with open(a_pxd, 'w') as f:
f.write('cdef int value\n')
with open(a_pyx, 'w') as f:
f.write('value = 1\n')
with open(b_pxd, 'w') as f:
f.write('cimport a\n')
with open(b_py, 'w') as f:
f.write('a.value = 2\n')
# The dependencies for b.py are "a.pxd", "b.pxd" and "b.py".
self.assertEqual({a_pxd, b_pxd, b_py}, dep_tree.all_dependencies(b_py))
# Cythonize to create b.c
fresh_cythonize([a_pyx, b_py])
# Sleep to address coarse time-stamp precision.
time.sleep(1)
with open(b_c) as f:
b_c_contents1 = f.read()
with open(a_pxd, 'w') as f:
f.write('cdef double value\n')
fresh_cythonize([a_pyx, b_py])
with open(b_c) as f:
b_c_contents2 = f.read()
self.assertTrue("__pyx_v_1a_value = 2;" in b_c_contents1)
self.assertFalse("__pyx_v_1a_value = 2;" in b_c_contents2)
self.assertTrue("__pyx_v_1a_value = 2.0;" in b_c_contents2)
self.assertFalse("__pyx_v_1a_value = 2.0;" in b_c_contents1)
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