add tests from the page

Author: aignas

python/private/py_wheel_normalize_pep440.bzl

@@ -569,8 +569,8 @@ def _version_lt(left, right):
         return True
 
     # the release is equal, check for pre version
-    if right.pre:
-        if left.pre != None:
+    if right.pre != None:
+        if left.pre == None:
             # PEP440: The exclusive ordered comparison <V MUST NOT allow a pre-release of
             # the specified version unless the specified version is itself a pre-release.
             return False
@@ -579,7 +579,20 @@ def _version_lt(left, right):
             return False
         elif left.pre < right.pre:
             return True
-    elif left.pre:
+    elif left.pre != None:
+        return True
+
+    if right.dev != None:
+        if left.dev == None:
+            # PEP440: The exclusive ordered comparison <V MUST NOT allow a pre-release of
+            # the specified version unless the specified version is itself a pre-release.
+            return False
+
+        if left.dev > right.dev:
+            return False
+        elif left.dev < right.dev:
+            return True
+    elif left.dev != None:
         return True
 
     return False

tests/pypi/pep508/evaluate_tests.bzl

@@ -302,26 +302,27 @@ _tests.append(_misc_expressions)
 
 def _test_ordering(env):
     want = [
-        # The items are sorted from lowest to highest version
-        "0.0.1",
-        "0.1.0-rc",
-        "0.1.0",
-        "0.9.11",
-        "0.9.12.dev",
-        "0.9.12",
-        "1.0.0-alpha",
-        "1.0.0-alpha1",
-        "1.0.0-beta",
-        "1.0.0-beta.dev",
-        "1.0.0-beta2",
-        "1.0.0-beta11",
-        "1.0.0-rc1",
-        "1.0.0-rc2.dev",
-        "1.0.0-rc2",
-        "1.0.0",
-        # Also handle missing minor and patch version strings
-        "2.0",
-        "3",
+        # Taken from https://peps.python.org/pep-0440/#summary-of-permitted-suffixes-and-relative-ordering
+        "1.dev0",
+        "1.0.dev456",
+        "1.0a1",
+        "1.0a2.dev456",
+        "1.0a12.dev456",
+        "1.0a12",
+        "1.0b1.dev456",
+        "1.0b2",
+        "1.0b2.post345.dev456",
+        "1.0b2.post345",
+        "1.0rc1.dev456",
+        "1.0rc1",
+        "1.0",
+        "1.0+abc.5",
+        "1.0+abc.7",
+        "1.0+5",
+        "1.0.post456.dev34",
+        "1.0.post456",
+        "1.0.15",
+        "1.1.dev1",
     ]
 
     for lower, higher in zip(want[:-1], want[1:]):