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✏️ test_compileall.py
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import compileall import imp import os import py_compile import shutil import struct import tempfile from test import test_support import unittest class CompileallTests(unittest.TestCase): def setUp(self): self.directory = tempfile.mkdtemp() self.source_path = os.path.join(self.directory, '_test.py') self.bc_path = self.source_path + ('c' if __debug__ else 'o') with open(self.source_path, 'w') as file: file.write('x = 123\n') self.source_path2 = os.path.join(self.directory, '_test2.py') self.bc_path2 = self.source_path2 + ('c' if __debug__ else 'o') shutil.copyfile(self.source_path, self.source_path2) def tearDown(self): shutil.rmtree(self.directory) def data(self): with open(self.bc_path, 'rb') as file: data = file.read(8) mtime = int(os.stat(self.source_path).st_mtime) compare = struct.pack('<4sl', imp.get_magic(), mtime) return data, compare @unittest.skipUnless(hasattr(os, 'stat'), 'test needs os.stat()') def recreation_check(self, metadata): """Check that compileall recreates bytecode when the new metadata is used.""" py_compile.compile(self.source_path) self.assertEqual(*self.data()) with open(self.bc_path, 'rb') as file: bc = file.read()[len(metadata):] with open(self.bc_path, 'wb') as file: file.write(metadata) file.write(bc) self.assertNotEqual(*self.data()) compileall.compile_dir(self.directory, force=False, quiet=True) self.assertTrue(*self.data()) def test_mtime(self): # Test a change in mtime leads to a new .pyc. self.recreation_check(struct.pack('<4sl', imp.get_magic(), 1)) def test_magic_number(self): # Test a change in mtime leads to a new .pyc. self.recreation_check(b'\0\0\0\0') def test_compile_files(self): # Test compiling a single file, and complete directory for fn in (self.bc_path, self.bc_path2): try: os.unlink(fn) except: pass compileall.compile_file(self.source_path, force=False, quiet=True) self.assertTrue(os.path.isfile(self.bc_path) \ and not os.path.isfile(self.bc_path2)) os.unlink(self.bc_path) compileall.compile_dir(self.directory, force=False, quiet=True) self.assertTrue(os.path.isfile(self.bc_path) \ and os.path.isfile(self.bc_path2)) os.unlink(self.bc_path) os.unlink(self.bc_path2) def test_main(): test_support.run_unittest(CompileallTests) if __name__ == "__main__": test_main()
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