275 lines
8.1 KiB
Python
275 lines
8.1 KiB
Python
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import os
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import re
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import sys
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import shutil
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import warnings
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import textwrap
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import unittest
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import tempfile
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import subprocess
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#import distutils.core
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#from distutils import sysconfig
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from distutils import ccompiler
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import runtests
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import Cython.Distutils.extension
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import Cython.Distutils.old_build_ext as build_ext
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from Cython.Debugger import Cygdb as cygdb
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root = os.path.dirname(os.path.abspath(__file__))
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codefile = os.path.join(root, 'codefile')
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cfuncs_file = os.path.join(root, 'cfuncs.c')
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with open(codefile) as f:
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source_to_lineno = dict((line.strip(), i + 1) for i, line in enumerate(f))
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have_gdb = None
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def test_gdb():
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global have_gdb
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if have_gdb is not None:
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return have_gdb
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have_gdb = False
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try:
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p = subprocess.Popen(['gdb', '-nx', '--version'], stdout=subprocess.PIPE)
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except OSError:
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# gdb not found
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gdb_version = None
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else:
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stdout, _ = p.communicate()
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# Based on Lib/test/test_gdb.py
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regex = r"GNU gdb [^\d]*(\d+)\.(\d+)"
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gdb_version = re.match(regex, stdout.decode('ascii', 'ignore'))
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if gdb_version:
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gdb_version_number = list(map(int, gdb_version.groups()))
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if gdb_version_number >= [7, 2]:
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have_gdb = True
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with tempfile.NamedTemporaryFile(mode='w+') as python_version_script:
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python_version_script.write(
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'python import sys; print("%s %s" % sys.version_info[:2])')
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python_version_script.flush()
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p = subprocess.Popen(['gdb', '-batch', '-x', python_version_script.name],
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stdout=subprocess.PIPE)
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stdout, _ = p.communicate()
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try:
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internal_python_version = list(map(int, stdout.decode('ascii', 'ignore').split()))
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if internal_python_version < [2, 6]:
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have_gdb = False
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except ValueError:
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have_gdb = False
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if not have_gdb:
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warnings.warn('Skipping gdb tests, need gdb >= 7.2 with Python >= 2.6')
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return have_gdb
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class DebuggerTestCase(unittest.TestCase):
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def setUp(self):
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"""
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Run gdb and have cygdb import the debug information from the code
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defined in TestParseTreeTransforms's setUp method
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"""
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if not test_gdb():
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return
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self.tempdir = tempfile.mkdtemp()
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self.destfile = os.path.join(self.tempdir, 'codefile.pyx')
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self.debug_dest = os.path.join(self.tempdir,
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'cython_debug',
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'cython_debug_info_codefile')
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self.cfuncs_destfile = os.path.join(self.tempdir, 'cfuncs')
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self.cwd = os.getcwd()
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try:
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os.chdir(self.tempdir)
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shutil.copy(codefile, self.destfile)
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shutil.copy(cfuncs_file, self.cfuncs_destfile + '.c')
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shutil.copy(cfuncs_file.replace('.c', '.h'),
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self.cfuncs_destfile + '.h')
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compiler = ccompiler.new_compiler()
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compiler.compile(['cfuncs.c'], debug=True, extra_postargs=['-fPIC'])
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opts = dict(
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test_directory=self.tempdir,
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module='codefile',
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)
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optimization_disabler = build_ext.Optimization()
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cython_compile_testcase = runtests.CythonCompileTestCase(
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workdir=self.tempdir,
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# we clean up everything (not only compiled files)
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cleanup_workdir=False,
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tags=runtests.parse_tags(codefile),
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**opts
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)
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new_stderr = open(os.devnull, 'w')
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stderr = sys.stderr
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sys.stderr = new_stderr
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optimization_disabler.disable_optimization()
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try:
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cython_compile_testcase.run_cython(
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targetdir=self.tempdir,
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incdir=None,
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annotate=False,
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extra_compile_options={
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'gdb_debug':True,
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'output_dir':self.tempdir,
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},
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**opts
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)
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cython_compile_testcase.run_distutils(
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incdir=None,
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workdir=self.tempdir,
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extra_extension_args={'extra_objects':['cfuncs.o']},
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**opts
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)
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finally:
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optimization_disabler.restore_state()
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sys.stderr = stderr
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new_stderr.close()
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# ext = Cython.Distutils.extension.Extension(
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# 'codefile',
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# ['codefile.pyx'],
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# cython_gdb=True,
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# extra_objects=['cfuncs.o'])
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#
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# distutils.core.setup(
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# script_args=['build_ext', '--inplace'],
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# ext_modules=[ext],
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# cmdclass=dict(build_ext=Cython.Distutils.build_ext)
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# )
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except:
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os.chdir(self.cwd)
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raise
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def tearDown(self):
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if not test_gdb():
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return
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os.chdir(self.cwd)
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shutil.rmtree(self.tempdir)
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class GdbDebuggerTestCase(DebuggerTestCase):
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def setUp(self):
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if not test_gdb():
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return
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super(GdbDebuggerTestCase, self).setUp()
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prefix_code = textwrap.dedent('''\
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python
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import os
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import sys
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import traceback
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def excepthook(type, value, tb):
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traceback.print_exception(type, value, tb)
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sys.stderr.flush()
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sys.stdout.flush()
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os._exit(1)
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sys.excepthook = excepthook
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# Have tracebacks end up on sys.stderr (gdb replaces sys.stderr
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# with an object that calls gdb.write())
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sys.stderr = sys.__stderr__
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end
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''')
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code = textwrap.dedent('''\
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python
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from Cython.Debugger.Tests import test_libcython_in_gdb
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test_libcython_in_gdb.main(version=%r)
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end
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''' % (sys.version_info[:2],))
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self.gdb_command_file = cygdb.make_command_file(self.tempdir,
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prefix_code)
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with open(self.gdb_command_file, 'a') as f:
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f.write(code)
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args = ['gdb', '-batch', '-x', self.gdb_command_file, '-n', '--args',
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sys.executable, '-c', 'import codefile']
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paths = []
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path = os.environ.get('PYTHONPATH')
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if path:
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paths.append(path)
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paths.append(os.path.dirname(os.path.dirname(
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os.path.abspath(Cython.__file__))))
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env = dict(os.environ, PYTHONPATH=os.pathsep.join(paths))
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self.p = subprocess.Popen(
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args,
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stdout=subprocess.PIPE,
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stderr=subprocess.PIPE,
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env=env)
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def tearDown(self):
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if not test_gdb():
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return
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try:
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super(GdbDebuggerTestCase, self).tearDown()
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if self.p:
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try: self.p.stdout.close()
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except: pass
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try: self.p.stderr.close()
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except: pass
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self.p.wait()
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finally:
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os.remove(self.gdb_command_file)
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class TestAll(GdbDebuggerTestCase):
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def test_all(self):
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if not test_gdb():
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return
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out, err = self.p.communicate()
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out = out.decode('UTF-8')
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err = err.decode('UTF-8')
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exit_status = self.p.returncode
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if exit_status == 1:
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sys.stderr.write(out)
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sys.stderr.write(err)
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elif exit_status >= 2:
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border = u'*' * 30
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start = u'%s v INSIDE GDB v %s' % (border, border)
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stderr = u'%s v STDERR v %s' % (border, border)
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end = u'%s ^ INSIDE GDB ^ %s' % (border, border)
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errmsg = u'\n%s\n%s%s\n%s%s' % (start, out, stderr, err, end)
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sys.stderr.write(errmsg)
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# FIXME: re-enable this to make the test fail on internal failures
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#self.assertEqual(exit_status, 0)
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if __name__ == '__main__':
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unittest.main()
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