Small CL to change the way format is used for package versions.

test/test_handlers/api/test_package_versions.py

 # Copyright (c) 2013, the Dart project authors.  Please see the AUTHORS file
 # for details. All rights reserved. Use of this source code is governed by a
 # BSD-style license that can be found in the LICENSE file.
 
 import re
 import json
 
 import handlers
 from models.package import Package
 from models.package_version import PackageVersion
@@ skipping 235 matching lines @@
         self.assertEqual(content['fields']['acl'], 'public-read')
 
     def test_api_uploader_gets_dartdoc_form_for_nonexistent_package(self):
         self.be_normal_oauth_user('other-uploader')
 
         response = self.testapp.get(
             '/packages/not-package/versions/1.2.3/new_dartdoc.json',
             status=404)
         self.assert_json_error(response)
 
+    def test_api_malformed_package_version(self):
+        version = self.package_version(self.package, '1.2.3')
+        version.put()
+
+        response = self.testapp.get(
+            '/api/packages/test-package/versions/banana', status=400)
+        self.assertEqual(response.headers['Content-Type'], 'application/json')
+        self.assertEqual(json.loads(response.body), {
+            'error': {'message': '"banana" is not a valid semantic version.'}
+        })
+
+    def test_api_no_such_package_version(self):
+        version = self.package_version(self.package, '1.2.3')
+        version.put()
+
+        response = self.testapp.get(
+            '/api/packages/test-package/versions/2.0.0', status=404)
+        self.assertEqual(response.headers['Content-Type'], 'application/json')
+        self.assertEqual(json.loads(response.body), {
+            'error':
+            {'message': '"test-package" version 2.0.0 doesn\'t exist.'}
+        })
+
     def post_package_version(self, version, name='test-package'):
         response = self.create_package(self.upload_archive(name, version))
         self.assert_json_success(response)
 
     def create_package(self, upload, status=None):
         get_response = self.testapp.get('/api/packages/versions/new')
         self.assertEqual(get_response.status_int, 200)
         content = json.loads(get_response.body)
         post_response = self.testapp.post(str(content['url']),
                                           content['fields'],
@@ skipping 10 matching lines @@
 
     def latest_version(self):
         return Package.get_by_key_name('test-package').latest_version.version
 
     def get_package_version(self, version):
         return PackageVersion.get_by_name_and_version('test-package', version)
 
     def assert_package_updated_is_latest_version_created(self):
         package = Package.get_by_key_name('test-package')
         self.assertEqual(package.updated, package.latest_version.created)