Rough draft of version requirement parser. Make bdist_egg look for a

distname.egg-info directory instead of EGG-INFO.in; this will be used later
to support development of egg-distributed packages that an application
under development expects to 'require()'.  (Thanks to Fred Drake for
pointing out this use case, and Bob Ippolito for helping me figure out how
to support it, although the runtime support doesn't actually exist yet.)

--HG--
branch : setuptools
extra : convert_revision : svn%3A6015fed2-1504-0410-9fe1-9d1591cc4771/sandbox/trunk/setuptools%4040999

1 files changed, 33 insertions, 0 deletions

diff --git a/setuptools/tests/test_resources.py b/setuptools/tests/test_resources.py
new file mode 100644
index 00000000..f918d21b
--- /dev/null
+++ b/setuptools/tests/test_resources.py
@@ -0,0 +1,33 @@
+from unittest import TestCase, makeSuite
+from pkg_resources import *
+import pkg_resources
+
+class DistroTests(TestCase):
+    def testEmptyiter(self):
+        # empty path should produce no distributions
+        self.assertEqual(list(iter_distributions(path=[])), [])
+
+class ParseTests(TestCase):
+    def testEmptyParse(self):
+        self.assertEqual(list(parse_requirements('')), [])
+
+    def testYielding(self):
+        for inp,out in [
+            ([], []), ('x',['x']), ([[]],[]), (' x\n y', ['x','y']),
+            (['x\n\n','y'], ['x','y']),
+        ]:
+            self.assertEqual(list(pkg_resources.yield_lines(inp)),out)
+
+    def testSimple(self):
+        self.assertEqual(
+            list(parse_requirements('Twis-Ted>=1.2')),
+            [('Twis_Ted',[('>=','1.2')])]
+        )
+        self.assertEqual(
+            list(parse_requirements('Twisted >=1.2, \ # more\n<2.0')),
+            [('Twisted',[('>=','1.2'),('<','2.0')])]
+        )
+        self.assertRaises(ValueError,lambda:list(parse_requirements(">=2.3")))
+        self.assertRaises(ValueError,lambda:list(parse_requirements("x\\")))
+        self.assertRaises(ValueError,lambda:list(parse_requirements("x==2 q")))
+