diff --git a/backend/src/test/resources/conf/520.xml b/backend/src/test/resources/conf/520.xml
new file mode 100644
index 000000000..6e813f232
--- /dev/null
+++ b/backend/src/test/resources/conf/520.xml
@@ -0,0 +1,14 @@
+<?xml version="1.0" encoding="UTF-8"?>
+<!-- This file is an EXAMPLE metadata configuration file. -->
+<MetadataProvider xmlns="urn:mace:shibboleth:2.0:metadata"
+                  xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance"
+                  id="ShibbolethMetadata"
+                  xsi:schemaLocation="urn:mace:shibboleth:2.0:metadata http://shibboleth.net/schema/idp/shibboleth-metadata.xsd urn:mace:shibboleth:2.0:resource http://shibboleth.net/schema/idp/shibboleth-resource.xsd urn:mace:shibboleth:2.0:security http://shibboleth.net/schema/idp/shibboleth-security.xsd urn:oasis:names:tc:SAML:2.0:metadata http://docs.oasis-open.org/security/saml/v2.0/saml-schema-metadata-2.0.xsd urn:oasis:names:tc:SAML:2.0:assertion http://docs.oasis-open.org/security/saml/v2.0/saml-schema-assertion-2.0.xsd"
+                  xsi:type="ChainingMetadataProvider">
+    <MetadataProvider id="FilesystemMetadata"
+                      maxRefreshDelay="PT1H"
+                      metadataFile="some metadata filename"
+                      minRefreshDelay="PT5M"
+                      refreshDelayFactor="0.75"
+                      xsi:type="FilesystemMetadataProvider"/>
+</MetadataProvider>