diff --git a/tests/test_data.py b/tests/test_data.py
new file mode 100644
index 00000000..a8165a6e
--- /dev/null
+++ b/tests/test_data.py
@@ -0,0 +1,24 @@
+from typing import Any, Dict, List
+
+from lxml.etree import XPath
+
+from fundus.parser.data import LinkedDataMapping
+
+lds: List[Dict[str, Any]] = [
+    {"@type": "Example1", "value": 1, "data": {"inner": "value", "nested": {"dict": True}}},
+    {"@type": "Example2", "value": 2, "_:*@": "Howdy"},
+    {"this": "should", "be": {"of": "type", "__UNKNOWN_TYPE__": True, "value": 3}},
+]
+
+
+class TestLinkedDataMapping:
+    def test_constructor(self):
+        LinkedDataMapping(lds)
+
+    def test_xpath_search(self):
+        ld = LinkedDataMapping(lds)
+        assert ld.xpath_search(XPath("//value")) == ["1", "2", "3"]
+        assert ld.xpath_search(XPath("//UNKNOWN_TYPE//value")) == ["3"]
+        assert ld.xpath_search(XPath("//_U003AU002AU0040")) == ["Howdy"]
+        assert ld.xpath_search(XPath("//dict")) == ["True"]
+        assert ld.xpath_search(XPath("//Example2")) == [{"@type": "Example2", "value": "2", "_:*@": "Howdy"}]