initial import of the packaging package in the standard library

Lib/packaging/tests/test_command_build_py.py

@@ -0,0 +1,124 @@
+"""Tests for distutils.command.build_py."""
+
+import os
+import sys
+
+from packaging.command.build_py import build_py
+from packaging.dist import Distribution
+from packaging.errors import PackagingFileError
+
+from packaging.tests import unittest, support
+
+
+class BuildPyTestCase(support.TempdirManager,
+                      support.LoggingCatcher,
+                      unittest.TestCase):
+
+    def test_package_data(self):
+        sources = self.mkdtemp()
+        pkg_dir = os.path.join(sources, 'pkg')
+        os.mkdir(pkg_dir)
+        f = open(os.path.join(pkg_dir, "__init__.py"), "w")
+        try:
+            f.write("# Pretend this is a package.")
+        finally:
+            f.close()
+        f = open(os.path.join(pkg_dir, "README.txt"), "w")
+        try:
+            f.write("Info about this package")
+        finally:
+            f.close()
+
+        destination = self.mkdtemp()
+
+        dist = Distribution({"packages": ["pkg"],
+                             "package_dir": sources})
+        # script_name need not exist, it just need to be initialized
+
+        dist.script_name = os.path.join(sources, "setup.py")
+        dist.command_obj["build"] = support.DummyCommand(
+            force=False,
+            build_lib=destination,
+            use_2to3_fixers=None,
+            convert_2to3_doctests=None,
+            use_2to3=False)
+        dist.packages = ["pkg"]
+        dist.package_data = {"pkg": ["README.txt"]}
+        dist.package_dir = sources
+
+        cmd = build_py(dist)
+        cmd.compile = True
+        cmd.ensure_finalized()
+        self.assertEqual(cmd.package_data, dist.package_data)
+
+        cmd.run()
+
+        # This makes sure the list of outputs includes byte-compiled
+        # files for Python modules but not for package data files
+        # (there shouldn't *be* byte-code files for those!).
+        #
+        self.assertEqual(len(cmd.get_outputs()), 3)
+        pkgdest = os.path.join(destination, "pkg")
+        files = os.listdir(pkgdest)
+        self.assertIn("__init__.py", files)
+        self.assertIn("__init__.pyc", files)
+        self.assertIn("README.txt", files)
+
+    def test_empty_package_dir(self):
+        # See SF 1668596/1720897.
+        cwd = os.getcwd()
+
+        # create the distribution files.
+        sources = self.mkdtemp()
+        pkg = os.path.join(sources, 'pkg')
+        os.mkdir(pkg)
+        open(os.path.join(pkg, "__init__.py"), "w").close()
+        testdir = os.path.join(pkg, "doc")
+        os.mkdir(testdir)
+        open(os.path.join(testdir, "testfile"), "w").close()
+
+        os.chdir(sources)
+        old_stdout = sys.stdout
+        #sys.stdout = StringIO.StringIO()
+
+        try:
+            dist = Distribution({"packages": ["pkg"],
+                                 "package_dir": sources,
+                                 "package_data": {"pkg": ["doc/*"]}})
+            # script_name need not exist, it just need to be initialized
+            dist.script_name = os.path.join(sources, "setup.py")
+            dist.script_args = ["build"]
+            dist.parse_command_line()
+
+            try:
+                dist.run_commands()
+            except PackagingFileError as e:
+                self.fail("failed package_data test when package_dir is ''")
+        finally:
+            # Restore state.
+            os.chdir(cwd)
+            sys.stdout = old_stdout
+
+    @unittest.skipUnless(hasattr(sys, 'dont_write_bytecode'),
+                         'sys.dont_write_bytecode not supported')
+    def test_dont_write_bytecode(self):
+        # makes sure byte_compile is not used
+        pkg_dir, dist = self.create_dist()
+        cmd = build_py(dist)
+        cmd.compile = True
+        cmd.optimize = 1
+
+        old_dont_write_bytecode = sys.dont_write_bytecode
+        sys.dont_write_bytecode = True
+        try:
+            cmd.byte_compile([])
+        finally:
+            sys.dont_write_bytecode = old_dont_write_bytecode
+
+        self.assertIn('byte-compiling is disabled', self.get_logs()[0])
+
+def test_suite():
+    return unittest.makeSuite(BuildPyTestCase)
+
+if __name__ == "__main__":
+    unittest.main(defaultTest="test_suite")