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142 lines
4.7 KiB
142 lines
4.7 KiB
"""Tests for distutils.spawn."""
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import os
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import stat
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import sys
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import unittest.mock as mock
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from distutils.errors import DistutilsExecError
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from distutils.spawn import find_executable, spawn
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from distutils.tests import support
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import path
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import pytest
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from test.support import unix_shell
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from .compat import py39 as os_helper
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class TestSpawn(support.TempdirManager):
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@pytest.mark.skipif("os.name not in ('nt', 'posix')")
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def test_spawn(self):
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tmpdir = self.mkdtemp()
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# creating something executable
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# through the shell that returns 1
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if sys.platform != 'win32':
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exe = os.path.join(tmpdir, 'foo.sh')
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self.write_file(exe, f'#!{unix_shell}\nexit 1')
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else:
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exe = os.path.join(tmpdir, 'foo.bat')
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self.write_file(exe, 'exit 1')
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os.chmod(exe, 0o777)
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with pytest.raises(DistutilsExecError):
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spawn([exe])
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# now something that works
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if sys.platform != 'win32':
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exe = os.path.join(tmpdir, 'foo.sh')
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self.write_file(exe, f'#!{unix_shell}\nexit 0')
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else:
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exe = os.path.join(tmpdir, 'foo.bat')
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self.write_file(exe, 'exit 0')
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os.chmod(exe, 0o777)
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spawn([exe]) # should work without any error
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def test_find_executable(self, tmp_path):
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program_path = self._make_executable(tmp_path, '.exe')
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program = program_path.name
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program_noeext = program_path.with_suffix('').name
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filename = str(program_path)
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tmp_dir = path.Path(tmp_path)
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# test path parameter
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rv = find_executable(program, path=tmp_dir)
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assert rv == filename
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if sys.platform == 'win32':
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# test without ".exe" extension
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rv = find_executable(program_noeext, path=tmp_dir)
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assert rv == filename
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# test find in the current directory
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with tmp_dir:
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rv = find_executable(program)
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assert rv == program
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# test non-existent program
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dont_exist_program = "dontexist_" + program
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rv = find_executable(dont_exist_program, path=tmp_dir)
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assert rv is None
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# PATH='': no match, except in the current directory
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with os_helper.EnvironmentVarGuard() as env:
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env['PATH'] = ''
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with (
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mock.patch(
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'distutils.spawn.os.confstr', return_value=tmp_dir, create=True
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),
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mock.patch('distutils.spawn.os.defpath', tmp_dir),
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):
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rv = find_executable(program)
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assert rv is None
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# look in current directory
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with tmp_dir:
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rv = find_executable(program)
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assert rv == program
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# PATH=':': explicitly looks in the current directory
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with os_helper.EnvironmentVarGuard() as env:
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env['PATH'] = os.pathsep
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with (
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mock.patch('distutils.spawn.os.confstr', return_value='', create=True),
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mock.patch('distutils.spawn.os.defpath', ''),
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):
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rv = find_executable(program)
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assert rv is None
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# look in current directory
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with tmp_dir:
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rv = find_executable(program)
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assert rv == program
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# missing PATH: test os.confstr("CS_PATH") and os.defpath
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with os_helper.EnvironmentVarGuard() as env:
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env.pop('PATH', None)
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# without confstr
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with (
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mock.patch(
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'distutils.spawn.os.confstr', side_effect=ValueError, create=True
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),
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mock.patch('distutils.spawn.os.defpath', tmp_dir),
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):
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rv = find_executable(program)
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assert rv == filename
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# with confstr
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with (
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mock.patch(
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'distutils.spawn.os.confstr', return_value=tmp_dir, create=True
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),
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mock.patch('distutils.spawn.os.defpath', ''),
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):
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rv = find_executable(program)
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assert rv == filename
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@staticmethod
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def _make_executable(tmp_path, ext):
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# Give the temporary program a suffix regardless of platform.
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# It's needed on Windows and not harmful on others.
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program = tmp_path.joinpath('program').with_suffix(ext)
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program.write_text("", encoding='utf-8')
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program.chmod(stat.S_IXUSR)
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return program
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def test_spawn_missing_exe(self):
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with pytest.raises(DistutilsExecError) as ctx:
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spawn(['does-not-exist'])
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assert "command 'does-not-exist' failed" in str(ctx.value)
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