1 files changed, 78 insertions, 0 deletions
diff --git a/setuptools/tests/test_dist.py b/setuptools/tests/test_dist.py
index c4c9bd03..0c10f05b 100644
--- a/setuptools/tests/test_dist.py
+++ b/setuptools/tests/test_dist.py
@@ -1,10 +1,13 @@
+# -*- coding: utf-8 -*-
 from setuptools import Distribution
 from setuptools.extern.six.moves.urllib.request import pathname2url
 from setuptools.extern.six.moves.urllib_parse import urljoin
+from setuptools.extern.six import StringIO
 
 from .textwrap import DALS
 from .test_easy_install import make_nspkg_sdist
 
+import pytest
 
 def test_dist_fetch_build_egg(tmpdir):
     """
@@ -45,3 +48,78 @@ def test_dist_fetch_build_egg(tmpdir):
             for r in reqs
         ]
     assert [dist.key for dist in resolved_dists if dist] == reqs
+
+
+def __maintainer_test_cases():
+    attrs = {"name": "package",
+             "version": "1.0",
+             "description": "xxx"}
+
+    def merge_dicts(d1, d2):
+        d1 = d1.copy()
+        d1.update(d2)
+
+        return d1
+
+    test_cases = [
+        ('No author, no maintainer', attrs.copy()),
+        ('Author (no e-mail), no maintainer', merge_dicts(attrs,
+            {'author': 'Author Name'})),
+        ('Author (e-mail), no maintainer', merge_dicts(attrs,
+            {'author': 'Author Name',
+             'author_email': 'author@name.com'})),
+        ('No author, maintainer (no e-mail)', merge_dicts(attrs,
+            {'maintainer': 'Maintainer Name'})),
+        ('No author, maintainer (e-mail)', merge_dicts(attrs,
+            {'maintainer': 'Maintainer Name',
+             'maintainer_email': 'maintainer@name.com'})),
+        ('Author (no e-mail), Maintainer (no-email)', merge_dicts(attrs,
+            {'author': 'Author Name',
+             'maintainer': 'Maintainer Name'})),
+        ('Author (e-mail), Maintainer (e-mail)', merge_dicts(attrs,
+            {'author': 'Author Name',
+             'author_email': 'author@name.com',
+             'maintainer': 'Maintainer Name',
+             'maintainer_email': 'maintainer@name.com'})),
+        ('No author (e-mail), no maintainer (e-mail)', merge_dicts(attrs,
+            {'author_email': 'author@name.com',
+             'maintainer_email': 'maintainer@name.com'})),
+        ('Author unicode', merge_dicts(attrs,
+            {'author': '鉄沢寛'})),
+        ('Maintainer unicode', merge_dicts(attrs,
+            {'maintainer': 'Jan Łukasiewicz'})),
+    ]
+
+    return test_cases
+
+@pytest.mark.parametrize('name,attrs', __maintainer_test_cases())
+def test_maintainer_author(name, attrs):
+    tested_keys = {
+        'author': 'Author',
+        'author_email': 'Author-email',
+        'maintainer': 'Maintainer',
+        'maintainer_email': 'Maintainer-email',
+    }
+
+    # Generate a PKG-INFO file
+    dist = Distribution(attrs)
+    PKG_INFO = StringIO()
+    dist.metadata.write_pkg_file(PKG_INFO)
+    PKG_INFO.seek(0)
+
+    pkg_lines = PKG_INFO.readlines()
+    pkg_lines = [_ for _ in pkg_lines if _]   # Drop blank lines
+    pkg_lines_set = set(pkg_lines)
+
+    # Duplicate lines should not be generated
+    assert len(pkg_lines) == len(pkg_lines_set)
+
+    for fkey, dkey in tested_keys.items():
+        val = attrs.get(dkey, None)
+        if val is None:
+            for line in pkg_lines:
+                assert not line.startswith(fkey + ':')
+        else:
+            line = '%s: %s' % (fkey, val)
+            assert line in pkg_lines_set
+