Add a simple version parser that combines the pre-release smarts of

distutils' StrictVersion, with the flexibility of LooseVersion.  It also
deals heuristically with common concepts like alpha/beta/candidate/rc
and pre/preview, as well as '-' and 'pl' branching schemes.


git-svn-id: http://svn.python.org/projects/sandbox/trunk/setuptools@41000 6015fed2-1504-0410-9fe1-9d1591cc4771

1 files changed, 58 insertions, 0 deletions

diff --git a/setuptools/tests/test_resources.py b/setuptools/tests/test_resources.py
index f918d21..8797cda 100644
--- a/setuptools/tests/test_resources.py
+++ b/setuptools/tests/test_resources.py
@@ -31,3 +31,61 @@ class ParseTests(TestCase):
         self.assertRaises(ValueError,lambda:list(parse_requirements("x\\")))
         self.assertRaises(ValueError,lambda:list(parse_requirements("x==2 q")))
 
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+    def testVersionOrdering(self):
+        def c(s1,s2):
+            p1, p2 = parse_version(s1),parse_version(s2)
+            self.failUnless(p1<p2, (s1,s2,p1,p2))
+
+        c('2.1','2.1.1')
+        c('2a1','2b0')        
+        c('2a1','2.1')        
+        c('2.3a1', '2.3')
+        c('2.1-1', '2.1-2')
+        c('2.1-1', '2.1.1')
+        c('2.1', '2.1pl4')
+        c('2.1a0-20040501', '2.1')
+        c('1.1', '02.1')
+        c('A56','B27')
+        c('3.2', '3.2.pl0')
+        c('3.2-1', '3.2pl1')
+        c('3.2pl1', '3.2pl1-1')
+        c('0.4', '4.0')
+        c('0.0.4', '0.4.0')
+        c('0pl1', '0.4pl1')
+
+
+    def testVersionEquality(self):
+        def c(s1,s2):
+            p1, p2 = parse_version(s1),parse_version(s2)
+            self.assertEqual(p1,p2, (s1,s2,p1,p2))
+        
+        c('0.4', '0.4.0')
+        c('0.4.0.0', '0.4.0')
+        c('0.4.0-0', '0.4-0')
+        c('0pl1', '0.0pl1')
+        c('0pre1', '0.0c1')
+        c('0.0.0preview1', '0c1')
+        c('0.0c1', '0rc1')
+
+        
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