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"""Test harness for the zipapp module."""
import io
import pathlib
import stat
import sys
import tempfile
import unittest
import zipapp
import zipfile
class ZipAppTest(unittest.TestCase):
"""Test zipapp module functionality."""
def setUp(self):
tmpdir = tempfile.TemporaryDirectory()
self.addCleanup(tmpdir.cleanup)
self.tmpdir = pathlib.Path(tmpdir.name)
def test_create_archive(self):
# Test packing a directory.
source = self.tmpdir / 'source'
source.mkdir()
(source / '__main__.py').touch()
target = self.tmpdir / 'source.pyz'
zipapp.create_archive(str(source), str(target))
self.assertTrue(target.is_file())
def test_create_archive_with_subdirs(self):
# Test packing a directory includes entries for subdirectories.
source = self.tmpdir / 'source'
source.mkdir()
(source / '__main__.py').touch()
(source / 'foo').mkdir()
(source / 'bar').mkdir()
(source / 'foo' / '__init__.py').touch()
target = io.BytesIO()
zipapp.create_archive(str(source), target)
target.seek(0)
with zipfile.ZipFile(target, 'r') as z:
self.assertIn('foo/', z.namelist())
self.assertIn('bar/', z.namelist())
def test_create_archive_default_target(self):
# Test packing a directory to the default name.
source = self.tmpdir / 'source'
source.mkdir()
(source / '__main__.py').touch()
zipapp.create_archive(str(source))
expected_target = self.tmpdir / 'source.pyz'
self.assertTrue(expected_target.is_file())
def test_no_main(self):
# Test that packing a directory with no __main__.py fails.
source = self.tmpdir / 'source'
source.mkdir()
(source / 'foo.py').touch()
target = self.tmpdir / 'source.pyz'
with self.assertRaises(zipapp.ZipAppError):
zipapp.create_archive(str(source), str(target))
def test_main_and_main_py(self):
# Test that supplying a main argument with __main__.py fails.
source = self.tmpdir / 'source'
source.mkdir()
(source / '__main__.py').touch()
target = self.tmpdir / 'source.pyz'
with self.assertRaises(zipapp.ZipAppError):
zipapp.create_archive(str(source), str(target), main='pkg.mod:fn')
def test_main_written(self):
# Test that the __main__.py is written correctly.
source = self.tmpdir / 'source'
source.mkdir()
(source / 'foo.py').touch()
target = self.tmpdir / 'source.pyz'
zipapp.create_archive(str(source), str(target), main='pkg.mod:fn')
with zipfile.ZipFile(str(target), 'r') as z:
self.assertIn('__main__.py', z.namelist())
self.assertIn(b'pkg.mod.fn()', z.read('__main__.py'))
def test_main_only_written_once(self):
# Test that we don't write multiple __main__.py files.
# The initial implementation had this bug; zip files allow
# multiple entries with the same name
source = self.tmpdir / 'source'
source.mkdir()
# Write 2 files, as the original bug wrote __main__.py
# once for each file written :-(
# See http://bugs.python.org/review/23491/diff/13982/Lib/zipapp.py#newcode67Lib/zipapp.py:67
# (line 67)
(source / 'foo.py').touch()
(source / 'bar.py').touch()
target = self.tmpdir / 'source.pyz'
zipapp.create_archive(str(source), str(target), main='pkg.mod:fn')
with zipfile.ZipFile(str(target), 'r') as z:
self.assertEqual(1, z.namelist().count('__main__.py'))
def test_main_validation(self):
# Test that invalid values for main are rejected.
source = self.tmpdir / 'source'
source.mkdir()
target = self.tmpdir / 'source.pyz'
problems = [
'', 'foo', 'foo:', ':bar', '12:bar', 'a.b.c.:d',
'.a:b', 'a:b.', 'a:.b', 'a:silly name'
]
for main in problems:
with self.subTest(main=main):
with self.assertRaises(zipapp.ZipAppError):
zipapp.create_archive(str(source), str(target), main=main)
def test_default_no_shebang(self):
# Test that no shebang line is written to the target by default.
source = self.tmpdir / 'source'
source.mkdir()
(source / '__main__.py').touch()
target = self.tmpdir / 'source.pyz'
zipapp.create_archive(str(source), str(target))
with target.open('rb') as f:
self.assertNotEqual(f.read(2), b'#!')
def test_custom_interpreter(self):
# Test that a shebang line with a custom interpreter is written
# correctly.
source = self.tmpdir / 'source'
source.mkdir()
(source / '__main__.py').touch()
target = self.tmpdir / 'source.pyz'
zipapp.create_archive(str(source), str(target), interpreter='python')
with target.open('rb') as f:
self.assertEqual(f.read(2), b'#!')
self.assertEqual(b'python\n', f.readline())
def test_pack_to_fileobj(self):
# Test that we can pack to a file object.
source = self.tmpdir / 'source'
source.mkdir()
(source / '__main__.py').touch()
target = io.BytesIO()
zipapp.create_archive(str(source), target, interpreter='python')
self.assertTrue(target.getvalue().startswith(b'#!python\n'))
def test_read_shebang(self):
# Test that we can read the shebang line correctly.
source = self.tmpdir / 'source'
source.mkdir()
(source / '__main__.py').touch()
target = self.tmpdir / 'source.pyz'
zipapp.create_archive(str(source), str(target), interpreter='python')
self.assertEqual(zipapp.get_interpreter(str(target)), 'python')
def test_read_missing_shebang(self):
# Test that reading the shebang line of a file without one returns None.
source = self.tmpdir / 'source'
source.mkdir()
(source / '__main__.py').touch()
target = self.tmpdir / 'source.pyz'
zipapp.create_archive(str(source), str(target))
self.assertEqual(zipapp.get_interpreter(str(target)), None)
def test_modify_shebang(self):
# Test that we can change the shebang of a file.
source = self.tmpdir / 'source'
source.mkdir()
(source / '__main__.py').touch()
target = self.tmpdir / 'source.pyz'
zipapp.create_archive(str(source), str(target), interpreter='python')
new_target = self.tmpdir / 'changed.pyz'
zipapp.create_archive(str(target), str(new_target), interpreter='python2.7')
self.assertEqual(zipapp.get_interpreter(str(new_target)), 'python2.7')
def test_write_shebang_to_fileobj(self):
# Test that we can change the shebang of a file, writing the result to a
# file object.
source = self.tmpdir / 'source'
source.mkdir()
(source / '__main__.py').touch()
target = self.tmpdir / 'source.pyz'
zipapp.create_archive(str(source), str(target), interpreter='python')
new_target = io.BytesIO()
zipapp.create_archive(str(target), new_target, interpreter='python2.7')
self.assertTrue(new_target.getvalue().startswith(b'#!python2.7\n'))
def test_read_from_fileobj(self):
# Test that we can copy an archive using an open file object.
source = self.tmpdir / 'source'
source.mkdir()
(source / '__main__.py').touch()
target = self.tmpdir / 'source.pyz'
temp_archive = io.BytesIO()
zipapp.create_archive(str(source), temp_archive, interpreter='python')
new_target = io.BytesIO()
temp_archive.seek(0)
zipapp.create_archive(temp_archive, new_target, interpreter='python2.7')
self.assertTrue(new_target.getvalue().startswith(b'#!python2.7\n'))
def test_remove_shebang(self):
# Test that we can remove the shebang from a file.
source = self.tmpdir / 'source'
source.mkdir()
(source / '__main__.py').touch()
target = self.tmpdir / 'source.pyz'
zipapp.create_archive(str(source), str(target), interpreter='python')
new_target = self.tmpdir / 'changed.pyz'
zipapp.create_archive(str(target), str(new_target), interpreter=None)
self.assertEqual(zipapp.get_interpreter(str(new_target)), None)
def test_content_of_copied_archive(self):
# Test that copying an archive doesn't corrupt it.
source = self.tmpdir / 'source'
source.mkdir()
(source / '__main__.py').touch()
target = io.BytesIO()
zipapp.create_archive(str(source), target, interpreter='python')
new_target = io.BytesIO()
target.seek(0)
zipapp.create_archive(target, new_target, interpreter=None)
new_target.seek(0)
with zipfile.ZipFile(new_target, 'r') as z:
self.assertEqual(set(z.namelist()), {'__main__.py'})
# (Unix only) tests that archives with shebang lines are made executable
@unittest.skipIf(sys.platform == 'win32',
'Windows does not support an executable bit')
def test_shebang_is_executable(self):
# Test that an archive with a shebang line is made executable.
source = self.tmpdir / 'source'
source.mkdir()
(source / '__main__.py').touch()
target = self.tmpdir / 'source.pyz'
zipapp.create_archive(str(source), str(target), interpreter='python')
self.assertTrue(target.stat().st_mode & stat.S_IEXEC)
@unittest.skipIf(sys.platform == 'win32',
'Windows does not support an executable bit')
def test_no_shebang_is_not_executable(self):
# Test that an archive with no shebang line is not made executable.
source = self.tmpdir / 'source'
source.mkdir()
(source / '__main__.py').touch()
target = self.tmpdir / 'source.pyz'
zipapp.create_archive(str(source), str(target), interpreter=None)
self.assertFalse(target.stat().st_mode & stat.S_IEXEC)
if __name__ == "__main__":
unittest.main()
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