Added tests for Mark class

ostack_validator/test_mark.py

@@ -0,0 +1,21 @@
+from ostack_validator.common import Mark
+
+import unittest
+
+class MarkTests(unittest.TestCase):
+  def test_creation(self):
+    m = Mark('nova.conf', 3, 5)
+    self.assertEqual('nova.conf', m.source)
+    self.assertEqual(3, m.line)
+    self.assertEqual(5, m.column)
+
+  def test_merge(self):
+    m1 = Mark('nova.conf', 3, 5)
+    m2 = Mark('unknown', 2, 7)
+
+    m = m1.merge(m2)
+
+    self.assertEqual(m1.source, m.source)
+    self.assertEqual(m1.line + m2.line - 1, m.line)
+    self.assertEqual(m1.column + m2.column - 1, m.column)
+