1 files changed, 12 insertions, 0 deletions
diff --git a/tests/unit/test_util.py b/tests/unit/test_util.py
index 0ecfdb2..cc92058 100644
--- a/tests/unit/test_util.py
+++ b/tests/unit/test_util.py
@@ -99,3 +99,15 @@ def test_tile_url(app_request):
     assert "{y}" in route_url
     assert "{z}" in route_url
     assert "bobby" in route_url
+
+
+@pytest.mark.parametrize("value, expected", [
+    ("", b""),
+    ("foo", b"foo"),
+    ("<foo>", b"&#x3c;foo&#x3e;"),
+    ("foo bar", b"foo bar"),
+    ("</gpx>", b"&#x3c;&#x2f;gpx&#x3e;"),
+    ("äÖß", b"&#xe4;&#xd6;&#xdf;"),
+])
+def test_xml_escape(value, expected):
+    assert util.xml_escape(value) == expected