diff --git a/tests/test_feeder.py b/tests/test_feeder.py
new file mode 100644
index 0000000..33371a2
--- /dev/null
+++ b/tests/test_feeder.py
@@ -0,0 +1,13 @@
+import pytest
+
+from wcs_olap.feeder import WcsOlapFeeder
+
+
+def test_constructor():
+    feeder = WcsOlapFeeder(api=None, pg_dsn='', schema='x' * 63)
+    schema_temp = feeder.ctx.as_dict()['schema_temp']
+    assert len(schema_temp) < 64
+    assert schema_temp == 'xxxxxxxxxxxxxxxxxxxxxxxxxxxxedd110xxxxxxxxxxxxxxxxxxxxxxxx_temp'
+
+    with pytest.raises(ValueError):
+        feeder = WcsOlapFeeder(api=None, pg_dsn='', schema='x' * 64)