SLING-760 - move escaping code to DefaultErrorHandlerServlet (and SlingMainServlet, but that's only used as a last resort IIUC) and add tests

git-svn-id: https://svn.apache.org/repos/asf/incubator/sling/trunk@731608 13f79535-47bb-0310-9956-ffa450edef68
diff --git a/src/test/java/org/apache/sling/launchpad/webapp/integrationtest/issues/SLING760Test.java b/src/test/java/org/apache/sling/launchpad/webapp/integrationtest/issues/SLING760Test.java
new file mode 100644
index 0000000..16c0107
--- /dev/null
+++ b/src/test/java/org/apache/sling/launchpad/webapp/integrationtest/issues/SLING760Test.java
@@ -0,0 +1,53 @@
+/*
+ * Licensed to the Apache Software Foundation (ASF) under one
+ * or more contributor license agreements.  See the NOTICE file
+ * distributed with this work for additional information
+ * regarding copyright ownership.  The ASF licenses this file
+ * to you under the Apache License, Version 2.0 (the
+ * "License"); you may not use this file except in compliance
+ * with the License.  You may obtain a copy of the License at
+ *
+ *   http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing,
+ * software distributed under the License is distributed on an
+ * "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY
+ * KIND, either express or implied.  See the License for the
+ * specific language governing permissions and limitations
+ * under the License.
+ */
+package org.apache.sling.launchpad.webapp.integrationtest.issues;
+
+import javax.servlet.http.HttpServletResponse;
+
+import org.apache.commons.httpclient.methods.GetMethod;
+import org.apache.sling.commons.testing.integration.HttpTestBase;
+
+public class SLING760Test extends HttpTestBase {
+    public static final String TEST_PATH = "/" + SLING760Test.class.getSimpleName();
+    
+    /** Verify that all instances of our error message are escaped in response, which
+     *  is generated by the default Sling error handler */
+    public void testEscapedErrorMessages() throws Exception {
+        final String [] mustContain = { "<characters/>", "filtered & escaped" };
+        final String [] mustNotContain = { "<characters/>", "filtered & escaped" };
+        
+        final TestNode tn = new TestNode(HTTP_BASE_URL + TEST_PATH, null);
+        
+        try {
+            uploadTestScript(tn.scriptPath, "issues/sling760/throw-with-markup.esp", "html.esp");
+            final String content = getContent(tn.nodeUrl + ".html", CONTENT_TYPE_HTML, 
+                    null, HttpServletResponse.SC_INTERNAL_SERVER_ERROR);
+            
+            for(String str : mustContain) {
+                assertTrue("Content must contain " + str + " (" + content + ")", content.contains(str));
+            }
+            
+            for(String str : mustNotContain) {
+                assertFalse("Content must NOT contain " + str + " (" + content + ")", content.contains(str));
+            }
+        } finally {
+            tn.delete();
+        }
+    }
+}
diff --git a/src/test/resources/integration-test/issues/sling760/throw-with-markup.esp b/src/test/resources/integration-test/issues/sling760/throw-with-markup.esp
new file mode 100644
index 0000000..f600bcf
--- /dev/null
+++ b/src/test/resources/integration-test/issues/sling760/throw-with-markup.esp
@@ -0,0 +1,5 @@
+<%
+// SLING-760: test an error message with characters that must
+// be escaped 
+throw("This string contains <characters/> that must be filtered & escaped");
+%>
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