test: escape_xml

tests/test_format.py

@@ -0,0 +1,24 @@
+# -*- coding: utf-8 -*-
+import unittest
+import string
+
+from yamllint.format import escape_xml, severity_from_level
+
+
+class TextToXMLTestCase(unittest.TestCase):
+
+    specials = {
+        '&': '&',
+        '<': '&lt;',
+        '>': '&gt;',
+        '"': '&quot;',
+        "'": '&apos;'
+    }
+
+    def test_letters_chars(self):
+        txt = string.ascii_letters
+        self.assertEqual(escape_xml(txt), txt)
+
+    def test_specials_chars(self):
+        for inp, out in self.specials.items():
+            self.assertEqual(escape_xml(inp), out)