Add test to check retrieving of policies after changing mode to READ_ONLY

(cherry picked from commit d19a9599b5)

dspace-api/src/test/java/org/dspace/core/ContextModeIT.java

@@ -0,0 +1,42 @@
+/**
+ * The contents of this file are subject to the license and copyright
+ * detailed in the LICENSE and NOTICE files at the root of the source
+ * tree and available online at
+ *
+ * http://www.dspace.org/license/
+ */
+package org.dspace.core;
+
+import static org.junit.Assert.assertEquals;
+
+import java.util.List;
+
+import org.dspace.AbstractIntegrationTestWithDatabase;
+import org.dspace.authorize.ResourcePolicy;
+import org.dspace.authorize.factory.AuthorizeServiceFactory;
+import org.dspace.authorize.service.AuthorizeService;
+import org.dspace.builder.CommunityBuilder;
+import org.junit.Test;
+
+public class ContextModeIT extends AbstractIntegrationTestWithDatabase {
+
+    AuthorizeService authorizeService = AuthorizeServiceFactory.getInstance().getAuthorizeService();
+
+    @Test
+    public void testGetPoliciesNewCommunityAfterReadOnlyModeChange() throws Exception {
+
+        context.turnOffAuthorisationSystem();
+        parentCommunity = CommunityBuilder.createCommunity(context)
+            .withName("Parent Community")
+            .build();
+        context.restoreAuthSystemState();
+
+        context.setMode(Context.Mode.READ_ONLY);
+
+        List<ResourcePolicy> policies = authorizeService.getPoliciesActionFilter(context, parentCommunity,
+            Constants.READ);
+
+        assertEquals("Should return the default anonymous group read policy", 1, policies.size());
+    }
+
+}