diff --git a/tests/test_localedata.py b/tests/test_localedata.py
index 17ecd6392..80dd118c4 100644
--- a/tests/test_localedata.py
+++ b/tests/test_localedata.py
@@ -72,3 +72,7 @@ def test_merge():
     d = {1: 'foo', 3: 'baz'}
     localedata.merge(d, {1: 'Foo', 2: 'Bar'})
     assert d == {1: 'Foo', 2: 'Bar', 3: 'baz'}
+
+def test_locale_identification():
+    for l in localedata.locale_identifiers():
+        assert localedata.exists(l)