Recipe package system.

recipe_engine/third_party/setuptools/tests/test_find_packages.py

Index: recipe_engine/third_party/setuptools/tests/test_find_packages.py
diff --git a/recipe_engine/third_party/setuptools/tests/test_find_packages.py b/recipe_engine/third_party/setuptools/tests/test_find_packages.py
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index 0000000000000000000000000000000000000000..fe390728c905bcb0fd670de5cf5266967b639880
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+"""Tests for setuptools.find_packages()."""
+import os
+import sys
+import shutil
+import tempfile
+import unittest
+import platform
+
+import setuptools
+from setuptools import find_packages
+from setuptools.tests.py26compat import skipIf
+
+find_420_packages = setuptools.PEP420PackageFinder.find
+
+# modeled after CPython's test.support.can_symlink
+def can_symlink():
+    TESTFN = tempfile.mktemp()
+    symlink_path = TESTFN + "can_symlink"
+    try:
+        os.symlink(TESTFN, symlink_path)
+        can = True
+    except (OSError, NotImplementedError, AttributeError):
+        can = False
+    else:
+        os.remove(symlink_path)
+    globals().update(can_symlink=lambda: can)
+    return can
+
+def has_symlink():
+    bad_symlink = (
+        # Windows symlink directory detection is broken on Python 3.2
+        platform.system() == 'Windows' and sys.version_info[:2] == (3,2)
+    )
+    return can_symlink() and not bad_symlink
+
+class TestFindPackages(unittest.TestCase):
+
+    def setUp(self):
+        self.dist_dir = tempfile.mkdtemp()
+        self._make_pkg_structure()
+
+    def tearDown(self):
+        shutil.rmtree(self.dist_dir)
+
+    def _make_pkg_structure(self):
+        """Make basic package structure.
+
+        dist/
+            docs/
+                conf.py
+            pkg/
+                __pycache__/
+                nspkg/
+                    mod.py
+                subpkg/
+                    assets/
+                        asset
+                    __init__.py
+            setup.py
+
+        """
+        self.docs_dir = self._mkdir('docs', self.dist_dir)
+        self._touch('conf.py', self.docs_dir)
+        self.pkg_dir = self._mkdir('pkg', self.dist_dir)
+        self._mkdir('__pycache__', self.pkg_dir)
+        self.ns_pkg_dir = self._mkdir('nspkg', self.pkg_dir)
+        self._touch('mod.py', self.ns_pkg_dir)
+        self.sub_pkg_dir = self._mkdir('subpkg', self.pkg_dir)
+        self.asset_dir = self._mkdir('assets', self.sub_pkg_dir)
+        self._touch('asset', self.asset_dir)
+        self._touch('__init__.py', self.sub_pkg_dir)
+        self._touch('setup.py', self.dist_dir)
+
+    def _mkdir(self, path, parent_dir=None):
+        if parent_dir:
+            path = os.path.join(parent_dir, path)
+        os.mkdir(path)
+        return path
+
+    def _touch(self, path, dir_=None):
+        if dir_:
+            path = os.path.join(dir_, path)
+        fp = open(path, 'w')
+        fp.close()
+        return path
+
+    def test_regular_package(self):
+        self._touch('__init__.py', self.pkg_dir)
+        packages = find_packages(self.dist_dir)
+        self.assertEqual(packages, ['pkg', 'pkg.subpkg'])
+
+    def test_exclude(self):
+        self._touch('__init__.py', self.pkg_dir)
+        packages = find_packages(self.dist_dir, exclude=('pkg.*',))
+        assert packages == ['pkg']
+
+    def test_include_excludes_other(self):
+        """
+        If include is specified, other packages should be excluded.
+        """
+        self._touch('__init__.py', self.pkg_dir)
+        alt_dir = self._mkdir('other_pkg', self.dist_dir)
+        self._touch('__init__.py', alt_dir)
+        packages = find_packages(self.dist_dir, include=['other_pkg'])
+        self.assertEqual(packages, ['other_pkg'])
+
+    def test_dir_with_dot_is_skipped(self):
+        shutil.rmtree(os.path.join(self.dist_dir, 'pkg/subpkg/assets'))
+        data_dir = self._mkdir('some.data', self.pkg_dir)
+        self._touch('__init__.py', data_dir)
+        self._touch('file.dat', data_dir)
+        packages = find_packages(self.dist_dir)
+        self.assertTrue('pkg.some.data' not in packages)
+
+    def test_dir_with_packages_in_subdir_is_excluded(self):
+        """
+        Ensure that a package in a non-package such as build/pkg/__init__.py
+        is excluded.
+        """
+        build_dir = self._mkdir('build', self.dist_dir)
+        build_pkg_dir = self._mkdir('pkg', build_dir)
+        self._touch('__init__.py', build_pkg_dir)
+        packages = find_packages(self.dist_dir)
+        self.assertTrue('build.pkg' not in packages)
+
+    @skipIf(not has_symlink(), 'Symlink support required')
+    def test_symlinked_packages_are_included(self):
+        """
+        A symbolically-linked directory should be treated like any other
+        directory when matched as a package.
+
+        Create a link from lpkg -> pkg.
+        """
+        self._touch('__init__.py', self.pkg_dir)
+        linked_pkg = os.path.join(self.dist_dir, 'lpkg')
+        os.symlink('pkg', linked_pkg)
+        assert os.path.isdir(linked_pkg)
+        packages = find_packages(self.dist_dir)
+        self.assertTrue('lpkg' in packages)
+
+    def _assert_packages(self, actual, expected):
+        self.assertEqual(set(actual), set(expected))
+
+    def test_pep420_ns_package(self):
+        packages = find_420_packages(
+            self.dist_dir, include=['pkg*'], exclude=['pkg.subpkg.assets'])
+        self._assert_packages(packages, ['pkg', 'pkg.nspkg', 'pkg.subpkg'])
+
+    def test_pep420_ns_package_no_includes(self):
+        packages = find_420_packages(
+            self.dist_dir, exclude=['pkg.subpkg.assets'])
+        self._assert_packages(packages, ['docs', 'pkg', 'pkg.nspkg', 'pkg.subpkg'])
+
+    def test_pep420_ns_package_no_includes_or_excludes(self):
+        packages = find_420_packages(self.dist_dir)
+        expected = [
+            'docs', 'pkg', 'pkg.nspkg', 'pkg.subpkg', 'pkg.subpkg.assets']
+        self._assert_packages(packages, expected)
+
+    def test_regular_package_with_nested_pep420_ns_packages(self):
+        self._touch('__init__.py', self.pkg_dir)
+        packages = find_420_packages(
+            self.dist_dir, exclude=['docs', 'pkg.subpkg.assets'])
+        self._assert_packages(packages, ['pkg', 'pkg.nspkg', 'pkg.subpkg'])
+
+    def test_pep420_ns_package_no_non_package_dirs(self):
+        shutil.rmtree(self.docs_dir)
+        shutil.rmtree(os.path.join(self.dist_dir, 'pkg/subpkg/assets'))
+        packages = find_420_packages(self.dist_dir)
+        self._assert_packages(packages, ['pkg', 'pkg.nspkg', 'pkg.subpkg'])