Add tests for setup.py inclusion

This tests that `setup.py` is included by default in the distribution
with the egg_info command and when an sdist is built with
build_meta.build_sdist

1 files changed, 12 insertions, 0 deletions

diff --git a/setuptools/tests/test_build_meta.py b/setuptools/tests/test_build_meta.py
index c5f4dcaa..82a5511c 100644
--- a/setuptools/tests/test_build_meta.py
+++ b/setuptools/tests/test_build_meta.py
@@ -2,9 +2,11 @@ from __future__ import unicode_literals
 
 import os
 import shutil
+import tarfile
 
 import pytest
 
+from setuptools.build_meta import build_sdist
 from .files import build_files
 from .textwrap import DALS
 from . import py2_only
@@ -181,3 +183,13 @@ def test_build_sdist_version_change(build_backend):
 
     sdist_name = build_backend.build_sdist("out_sdist")
     assert os.path.isfile(os.path.join(os.path.abspath("out_sdist"), sdist_name))
+
+
+def test_build_sdist_setup_py_exists(tmpdir_cwd):
+    # If build_sdist is called from a script other than setup.py,
+    # ensure setup.py is include
+    build_files(defns[0])
+    targz_path = build_sdist("temp")
+    with tarfile.open(os.path.join("temp", targz_path)) as tar:
+        assert any('setup.py' in name for name in tar.getnames())
+