Merge #88 Resolve HEAD in ksurl to actual hash

tests/test_util.py

@@ -0,0 +1,50 @@
+#!/usr/bin/env python2
+# -*- coding: utf-8 -*-
+
+import mock
+import os
+import sys
+import unittest
+
+sys.path.insert(0, os.path.join(os.path.dirname(__file__), ".."))
+
+from pungi import util
+
+
+class TestGitRefResolver(unittest.TestCase):
+
+    @mock.patch('pungi.util.run')
+    def test_successful_resolve(self, run):
+        run.return_value = (0, 'CAFEBABE\tHEAD\n')
+
+        url = util.resolve_git_url('https://git.example.com/repo.git?somedir#HEAD')
+
+        self.assertEqual(url, 'https://git.example.com/repo.git?somedir#CAFEBABE')
+        run.assert_called_once_with(['git', 'ls-remote', 'https://git.example.com/repo.git', 'HEAD'])
+
+    @mock.patch('pungi.util.run')
+    def test_resolve_missing_spec(self, run):
+        url = util.resolve_git_url('https://git.example.com/repo.git')
+
+        self.assertEqual(url, 'https://git.example.com/repo.git')
+        self.assertEqual(run.mock_calls, [])
+
+    @mock.patch('pungi.util.run')
+    def test_resolve_non_head_spec(self, run):
+        url = util.resolve_git_url('https://git.example.com/repo.git#some-tag')
+
+        self.assertEqual(url, 'https://git.example.com/repo.git#some-tag')
+        self.assertEqual(run.mock_calls, [])
+
+    @mock.patch('pungi.util.run')
+    def test_resolve_ambiguous(self, run):
+        run.return_value = (0, 'CAFEBABE\tF11\nDEADBEEF\tF10\n')
+
+        with self.assertRaises(RuntimeError):
+            util.resolve_git_url('https://git.example.com/repo.git?somedir#HEAD')
+
+        run.assert_called_once_with(['git', 'ls-remote', 'https://git.example.com/repo.git', 'HEAD'])
+
+
+if __name__ == "__main__":
+    unittest.main()