Spaces:
Build error
Build error
File size: 6,225 Bytes
f07f089 |
1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 43 44 45 46 47 48 49 50 51 52 53 54 55 56 57 58 59 60 61 62 63 64 65 66 67 68 69 70 71 72 73 74 75 76 77 78 79 80 81 82 83 84 85 86 87 88 89 90 91 92 93 94 95 96 97 98 99 100 101 102 103 104 105 106 107 108 109 110 111 112 113 114 115 116 117 118 119 120 121 122 123 124 125 126 127 128 129 130 131 132 133 134 135 136 137 138 139 140 141 142 143 144 145 146 147 148 149 150 151 152 153 154 155 156 157 158 159 160 161 162 163 164 165 166 167 168 169 170 171 172 173 174 175 176 177 178 179 180 181 182 183 184 185 186 187 188 189 190 191 192 193 194 195 196 197 198 199 200 201 202 203 204 205 206 |
# -*- coding: utf-8 -*-
# tag: ipython
"""Tests for the Cython magics extension."""
from __future__ import absolute_import
import os
import sys
from contextlib import contextmanager
from Cython.Build import IpythonMagic
from Cython.TestUtils import CythonTest
try:
import IPython.testing.globalipapp
except ImportError:
# Disable tests and fake helpers for initialisation below.
def skip_if_not_installed(_):
return None
else:
def skip_if_not_installed(c):
return c
try:
# disable IPython history thread before it gets started to avoid having to clean it up
from IPython.core.history import HistoryManager
HistoryManager.enabled = False
except ImportError:
pass
code = u"""\
def f(x):
return 2*x
"""
cython3_code = u"""\
def f(int x):
return 2 / x
def call(x):
return f(*(x,))
"""
pgo_cython3_code = cython3_code + u"""\
def main():
for _ in range(100): call(5)
main()
"""
if sys.platform == 'win32':
# not using IPython's decorators here because they depend on "nose"
try:
from unittest import skip as skip_win32
except ImportError:
# poor dev's silent @unittest.skip()
def skip_win32(dummy):
def _skip_win32(func):
return None
return _skip_win32
else:
def skip_win32(dummy):
def _skip_win32(func):
def wrapper(*args, **kwargs):
func(*args, **kwargs)
return wrapper
return _skip_win32
@skip_if_not_installed
class TestIPythonMagic(CythonTest):
@classmethod
def setUpClass(cls):
CythonTest.setUpClass()
cls._ip = IPython.testing.globalipapp.get_ipython()
def setUp(self):
CythonTest.setUp(self)
self._ip.extension_manager.load_extension('cython')
def test_cython_inline(self):
ip = self._ip
ip.ex('a=10; b=20')
result = ip.run_cell_magic('cython_inline', '', 'return a+b')
self.assertEqual(result, 30)
@skip_win32('Skip on Windows')
def test_cython_pyximport(self):
ip = self._ip
module_name = '_test_cython_pyximport'
ip.run_cell_magic('cython_pyximport', module_name, code)
ip.ex('g = f(10)')
self.assertEqual(ip.user_ns['g'], 20.0)
ip.run_cell_magic('cython_pyximport', module_name, code)
ip.ex('h = f(-10)')
self.assertEqual(ip.user_ns['h'], -20.0)
try:
os.remove(module_name + '.pyx')
except OSError:
pass
def test_cython(self):
ip = self._ip
ip.run_cell_magic('cython', '', code)
ip.ex('g = f(10)')
self.assertEqual(ip.user_ns['g'], 20.0)
def test_cython_name(self):
# The Cython module named 'mymodule' defines the function f.
ip = self._ip
ip.run_cell_magic('cython', '--name=mymodule', code)
# This module can now be imported in the interactive namespace.
ip.ex('import mymodule; g = mymodule.f(10)')
self.assertEqual(ip.user_ns['g'], 20.0)
def test_cython_language_level(self):
# The Cython cell defines the functions f() and call().
ip = self._ip
ip.run_cell_magic('cython', '', cython3_code)
ip.ex('g = f(10); h = call(10)')
if sys.version_info[0] < 3:
self.assertEqual(ip.user_ns['g'], 2 // 10)
self.assertEqual(ip.user_ns['h'], 2 // 10)
else:
self.assertEqual(ip.user_ns['g'], 2.0 / 10.0)
self.assertEqual(ip.user_ns['h'], 2.0 / 10.0)
def test_cython3(self):
# The Cython cell defines the functions f() and call().
ip = self._ip
ip.run_cell_magic('cython', '-3', cython3_code)
ip.ex('g = f(10); h = call(10)')
self.assertEqual(ip.user_ns['g'], 2.0 / 10.0)
self.assertEqual(ip.user_ns['h'], 2.0 / 10.0)
def test_cython2(self):
# The Cython cell defines the functions f() and call().
ip = self._ip
ip.run_cell_magic('cython', '-2', cython3_code)
ip.ex('g = f(10); h = call(10)')
self.assertEqual(ip.user_ns['g'], 2 // 10)
self.assertEqual(ip.user_ns['h'], 2 // 10)
@skip_win32('Skip on Windows')
def test_cython3_pgo(self):
# The Cython cell defines the functions f() and call().
ip = self._ip
ip.run_cell_magic('cython', '-3 --pgo', pgo_cython3_code)
ip.ex('g = f(10); h = call(10); main()')
self.assertEqual(ip.user_ns['g'], 2.0 / 10.0)
self.assertEqual(ip.user_ns['h'], 2.0 / 10.0)
@skip_win32('Skip on Windows')
def test_extlibs(self):
ip = self._ip
code = u"""
from libc.math cimport sin
x = sin(0.0)
"""
ip.user_ns['x'] = 1
ip.run_cell_magic('cython', '-l m', code)
self.assertEqual(ip.user_ns['x'], 0)
def test_cython_verbose(self):
ip = self._ip
ip.run_cell_magic('cython', '--verbose', code)
ip.ex('g = f(10)')
self.assertEqual(ip.user_ns['g'], 20.0)
def test_cython_verbose_thresholds(self):
@contextmanager
def mock_distutils():
class MockLog:
DEBUG = 1
INFO = 2
thresholds = [INFO]
def set_threshold(self, val):
self.thresholds.append(val)
return self.thresholds[-2]
new_log = MockLog()
old_log = IpythonMagic.distutils.log
try:
IpythonMagic.distutils.log = new_log
yield new_log
finally:
IpythonMagic.distutils.log = old_log
ip = self._ip
with mock_distutils() as verbose_log:
ip.run_cell_magic('cython', '--verbose', code)
ip.ex('g = f(10)')
self.assertEqual(ip.user_ns['g'], 20.0)
self.assertEqual([verbose_log.INFO, verbose_log.DEBUG, verbose_log.INFO],
verbose_log.thresholds)
with mock_distutils() as normal_log:
ip.run_cell_magic('cython', '', code)
ip.ex('g = f(10)')
self.assertEqual(ip.user_ns['g'], 20.0)
self.assertEqual([normal_log.INFO], normal_log.thresholds)
|