/*-
 * ============LICENSE_START=======================================================
 * ECOMP-TEST
 * ================================================================================
 * Copyright (C) 2017 AT&T Intellectual Property. All rights reserved.
 * ================================================================================
 * Licensed 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.
 * ============LICENSE_END=========================================================
 */

package org.openecomp.policy.pdp.test.std.json;

import static org.junit.Assert.assertEquals;
import static org.junit.Assert.fail;

import org.junit.Test;

import com.att.research.xacml.api.Request;
import com.att.research.xacml.std.json.JSONRequest;
import com.att.research.xacml.std.json.JSONStructureException;
/**
 * Test JSON Request convert to object - High-level Request-as-a-whole tests including test that fills in all fields with multiple values (where appropriate)
 * 
 * TO RUN - use jUnit
 * In Eclipse select this file or the enclosing directory, right-click and select Run As/JUnit Test
 * 
 * NOTE:
 * The "correct" way to verify that each JSON string gets translated into our internal Objects correctly is to look explicitly at each of the child objects
 * and verify that they are correct.  This would involve a lot of coding to get child of child of child and individually verify each property of each element.
 * To simplify testing we assume that request.toString() correctly includes a complete text representation of every sub-component of the Request object
 * and we compare the resulting String to our expected String.
 * This has two possible sources of error:
 * 	- toString might not include some sub-component, and
 * 	- the initial verification of the resulting string is done by hand and may have been incorrect.
 * 
 *
 */
public class RequestMainTest {
	
	// The request object output from each test conversion from JSON string
	Request request;

	
	/*
	 * Request that uses all fields with both single and multiple  entries
	 */
	String allFieldsRequest = 
			"{\"Request\": {" +
					"\"ReturnPolicyIdList\" : true ," +
					"\"CombinedDecision\" : true ," +
					"\"XPathVersion\" : \"http://www.w3.org/TR/1999/REC-xpath-19991116\"," +
					"\"MultiRequests\" : {" +
			            "\"RequestReference\": [" +
			            	"{ " +
			                	"\"ReferenceId\" : [\"foo1\",\"bar1\"]" +
			                "}," +
			                "{" +
			                	"\"ReferenceId\" : [\"foo2\",\"bar1\"]" +
			                "}]" +   
			          "}," +

					"\"Category\": [" +
						"{ " +
					    	"\"CategoryId\": \"custom-category\", " +
					    	"\"Id\" : \"customId\", " +
					    	"\"Attribute\" : [" +
					    		"{" +
					    			"\"AttributeId\"		: \"document-id\", " +
					    			"\"DataType\"	: \"integer\", " +
					    			"\"Value\"	: 123 " +
								"}, " +
								"{" +
				    				"\"AttributeId\"		: \"document-url\", " +
				    				"\"DataType\"	: \"anyURI\", " +
				    				"\"Value\"	: \"http://somewhere.over.the.com/rainbow\" " +
				    			"}, " +
								"{" +
				    				"\"AttributeId\"		: \"page-list\", " +
				    				"\"Value\"	: [1, 2, 3, 4.5, 3, 2, 1] " +
							"} " +
					    	"]" +
					    "}, " +
					    "{ " +
					    	"\"CategoryId\": \"another-custom-cat\", " +
					    	"\"Id\" : \"anotherXmlId\", " +
					    	"\"Attribute\" : []" +
					    "} " +
					"], " +
					    
					"\"AccessSubject\":{ " +
						"\"Content\" : \"<?xml version=\\\"1.0\\\"?><catalog>" + 
							"<book id=\\\"bk101\\\"><author>Gambardella, Matthew</author><title>XML Developer's Guide</title><genre>Computer</genre>" +
							"<price>44.95</price><publish_date>2000-10-01</publish_date><description>An in-depth look at creating applications with XML.</description>"+
							"</book></catalog>\"," +
						"\"Attribute\" : []" +
					"}, " +
					
					"\"Resource\" : {" +
						"\"Content\" : \"PD94bWwgdmVyc2lvbj0iMS4wIj8+PGNhdGFsb2c+PGJvb2sgaWQ9ImJrMTAxIj48YXV0aG9yPkdhbWJhcmRlbGxhLCBNYXR0aGV3PC9hdXRob3I+PHRpdGxlPlhNT" +
							"CBEZXZlbG9wZXIncyBHdWlkZTwvdGl0bGU+PGdlbnJlPkNvbXB1dGVyPC9nZW5yZT48cHJpY2U+NDQuOTU8L3ByaWNlPjxwdWJsaXNoX2RhdGU+MjAwMC0xMC0wMTwvcHVibGlzaF"+
							"9kYXRlPjxkZXNjcmlwdGlvbj5BbiBpbi1kZXB0aCBsb29rIGF0IGNyZWF0aW5nIGFwcGxpY2F0aW9ucyB3aXRoIFhNTC48L2Rlc2NyaXB0aW9uPjwvYm9vaz48L2NhdGFsb2c+\"" +


					"} " +

			          
			"}}";
	
	/*
	 * The following example comes directly from the JSON Profile Spec
	 */
	String exampleFromSpec = "{ " +
			"\"Request\" : { " +
				"\"AccessSubject\" : { " +
					"\"Attribute\": [ " +
						"{ " +
							"\"Id\" : \"subject-id\", " +
							"\"Value\" : \"Andreas\" " +
						"}, " +
						"{ " +
							"\"Id\" : \"location\", " +
							"\"Value\" : \"Gamla Stan\" " +
						"} " +
					"] " +
				"}, " +
				"\"Action\" : { " +
					"\"Attribute\":  " +
						"{ " +
							"\"Id\" : \"action-id\", " +
							"\"Value\" : \"http://www.xacml.eu/buy\", " +
							"\"DataType\" : \"anyURI\" " +
						"} " +
				"}, " +
				"\"Resource\" : { " +
					"\"Attribute\": [ " +
						"{ " +
							"\"Id\" : \"book-title\", " +
							"\"Value\" : \"Learn German in 90 days\" " +
						"}, " +
						"{ " +
							"\"Id\" : \"currency\", " +
							"\"Value\" : \"SEK\" " +
						"}, " +
						"{ " +
							"\"Id\" : \"price\", " +
							"\"Value\" : 123.34 " +
						"} " +
						"] " +
					"} " +
				"} " +
			"} ";

	
	/*
	 * The following example comes directly from the JSON Profile Spec (modified to include a "</Catalog>" missing from both examples).
	 * It shows the two ways of handling XPath content, as escaped XML and as Base64 encoding.
	 */
	String xPathExampleFromSpec = "{ " +
			"\"Request\" : { " +
				"\"Resource\" : { " +
					"\"Attribute\": [ " +
						"{ " +
						 	"\"Id\" : \"urn:oasis:names:tc:xacml:3.0:content-selector\", " +
				            "\"DataType\" : \"xpathExpression\", " +
				            "\"Value\" : { " +
				                "\"XPathCategory\" : \"urn:oasis:names:tc:xacml:3.0:attribute-category:resource\", " +
				                "\"Namespaces\" : [{ " +
				                    	"\"Namespace\" : \"urn:oasis:names:tc:xacml:3.0:core:schema:wd-17\" " +
				                    	"}, " +
				                    "{ " +
				                    	"\"Prefix\" : \"md\", " +
				                    	"\"Namespace\" : \"urn:example:med:schemas:record\" " +
				                    "} " +
				                "], " +
				                "\"XPath\" : \"md:record/md:patient/md:patientDoB\" " +
				            "} " +
				        "} " +
					"] " +
				"} " +
			"} " +
		"} ";

	
	
	// test various ways that request might be empty
	@Test
	public void testEmptyRequest() {
		// null request
		try {
			request = JSONRequest.load((String)null);
			fail("Request should throw exception");
		} catch (JSONStructureException e) {
			// correct response
		} catch (Exception e) {
			fail ("Failed convert from JSON to object: " + e);
		}
		
		// empty request
		try {
			request = JSONRequest.load((String)"");
			fail("Request should throw exception");
		} catch (JSONStructureException e) {
			// correct response
		} catch (Exception e) {
			fail ("Failed convert from JSON to object: " + e);
		}
		
		try {
			request = JSONRequest.load((String)" ");
			fail("Request should throw exception");
		} catch (JSONStructureException e) {
			// correct response
		} catch (Exception e) {
			fail ("Failed convert from JSON to object: " + e);
		}
		
		// empty JSON request
		try {
			request = JSONRequest.load((String)"{}");
			fail("Request should throw exception");
		} catch (JSONStructureException e) {
			// correct response
		} catch (Exception e) {
			fail ("Failed convert from JSON to object: " + e);
		}
		
		try {
			request = JSONRequest.load((String)"{{}}");
			fail("Request should throw exception");
		} catch (JSONStructureException e) {
			// correct response
		} catch (Exception e) {
			fail ("Failed convert from JSON to object: " + e);
		}
		
		// garbage input
		try {
			request = JSONRequest.load((String)"Some non-JSON string");
			fail("Request should throw exception");
		} catch (JSONStructureException e) {
			// correct response
		} catch (Exception e) {
			fail ("Failed convert from JSON to object: " + e);
		}
		
		try {
			request = JSONRequest.load((String)"{something non-JSON}");
			fail("Request should throw exception");
		} catch (JSONStructureException e) {
			// correct response
		} catch (Exception e) {
			fail ("Failed convert from JSON to object: " + e);
		}
		
		// bad syntax (Request with no content)
		try {
			request = JSONRequest.load((String)"{\"Request\"}");
			fail("Request should throw exception");
		} catch (JSONStructureException e) {
			// correct response
		} catch (Exception e) {
			fail ("Failed convert from JSON to object: " + e);
		}
		
		// bad syntax (no :field after Request)
		try {
			request = JSONRequest.load((String)"{\"Request\" : }");
			fail("Request should throw exception");
		} catch (JSONStructureException e) {
			// correct response
		} catch (Exception e) {
			fail ("Failed convert from JSON to object: " + e);
		}
		
		// bad syntax (no " around Request)
		try {
			request = JSONRequest.load((String)"{Request}");
			fail("Request should throw exception");
		} catch (JSONStructureException e) {
			// correct response
		} catch (Exception e) {
			fail ("Failed convert from JSON to object: " + e);
		}
		
		// empty content in Request
		try {
			request = JSONRequest.load((String)"{\"Request\" : \"\"}");
			fail("Request should throw exception");
		} catch (JSONStructureException e) {
			// correct response
		} catch (Exception e) {
			fail ("Failed convert from JSON to object: " + e);
		}
		
		// content is not an object
		try {
			request = JSONRequest.load((String)"{\"Request\" : \"CombinedDecision\" : true }");
			fail("Request should throw exception");
		} catch (JSONStructureException e) {
			// correct response
		} catch (Exception e) {
			fail ("Failed convert from JSON to object: " + e);
		}
		
		// too many } at end
		// Jackson parser does not treat this as an error
		try {
			request = JSONRequest.load((String)"{\"Request\" : {\"XPathVersion\" : \"http://www.w3.org/TR/1999/REC-xpath-19991116\"}}}}}");
			assertEquals("{requestDefaults={xpatherVersion=http://www.w3.org/TR/1999/REC-xpath-19991116},returnPolicyIdList=false,combinedDecision=false}", request.toString());
		} catch (Exception e) {
			fail ("Failed convert from JSON to object: " + e);
		}
		
		// too few } at end
		try {
			request = JSONRequest.load((String)"{\"Request\" : {\"XPathVersion\" : \"http://www.w3.org/TR/1999/REC-xpath-19991116\" }");
			fail("Request should throw exception");
		} catch (JSONStructureException e) {
			// correct response
		} catch (Exception e) {
			fail ("Failed convert from JSON to object: " + e);
		}
		
		
		// misplaced } in middle
		try {
			request = JSONRequest.load((String)"{\"Request\" : {\"XPathVersion\" : } \"http://www.w3.org/TR/1999/REC-xpath-19991116\"}}}}}");
			fail("Request should throw exception");
		} catch (JSONStructureException e) {
			// correct response
		} catch (Exception e) {
			fail ("Failed convert from JSON to object: " + e);
		}
		

	}
	

	
	// Test double braces around request
	@Test
	public void testDoubleBraces() {
		
		try {
			request = JSONRequest.load((String)"{{\"Request\" }");
			fail("Request should throw exception");
		} catch (JSONStructureException e) {
			// correct response
		} catch (Exception e) {
			fail ("Failed convert from JSON to object: " + e);
		}
		
		try {
			request = JSONRequest.load((String)"{{\"Request\" : }");
			fail("Request should throw exception");
		} catch (JSONStructureException e) {
			// correct response
		} catch (Exception e) {
			fail ("Failed convert from JSON to object: " + e);
		}
		
		try {
			request = JSONRequest.load((String)"{{\"Request\" : {\"CombinedDecision\" : true }}");
			fail("Request should throw exception");
		} catch (JSONStructureException e) {
			// correct response
		} catch (Exception e) {
			fail ("Failed convert from JSON to object: " + e);
		}
	}
	
	
	
	// test elements missing from top-level Request and arrays where single elements should be
	@Test
	public void testMissingFields() {
		
		// Request containing empty array
		try {
			request = JSONRequest.load((String)"{\"Request\" : []}");
			fail("Request should throw exception");
		} catch (JSONStructureException e) {
			// correct response
		} catch (Exception e) {
			fail ("Failed convert from JSON to object: " + e);
		}
		
		// array of one element
		try {
			request = JSONRequest.load((String)"{\"Request\" : [{\"CombinedDecision\" : true }]}");
			fail("Request should throw exception");
		} catch (JSONStructureException e) {
			// correct response
		} catch (Exception e) {
			fail ("Failed convert from JSON to object: " + e);
		}
		
		// correctly formatted empty request gives request with defaults set
		try {
			request = JSONRequest.load((String)"{\"Request\" : { }}");
			assertEquals("{returnPolicyIdList=false,combinedDecision=false}", request.toString());
		} catch (Exception e) {
			fail ("Failed convert from JSON to object: " + e);
		}
		
		
		// space in front of name (inside quotes)
		try {
			request = JSONRequest.load((String)"{\" Request\" : {\"XPathVersion\" : \"http://some/other/default/uri\" }}");
			fail("Request should throw exception");
		} catch (JSONStructureException e) {
			// correct response
		} catch (Exception e) {
			fail ("Failed convert from JSON to object: " + e);
		}
		
		// space at end of name (inside quotes)
		try {
			request = JSONRequest.load((String)"{\"Request \" : {\"XPathVersion\" : \"http://some/other/default/uri\" }}");
			fail("Request should throw exception");
		} catch (JSONStructureException e) {
			// correct response
		} catch (Exception e) {
			fail ("Failed convert from JSON to object: " + e);
		}
		
		// space in front of value (inside quotes) - valid String but not valid URI
		try {
			request = JSONRequest.load((String)"{\"Request\" : {\"XPathVersion\" : \" http://some/other/default/uri\" }}");
			fail("Request should throw exception");
		} catch (JSONStructureException e) {
			// correct response
		} catch (Exception e) {
			fail ("Failed convert from JSON to object: " + e);
		}
		
		// space at end of value (inside quotes) - valid String but not valid URI
		try {
			request = JSONRequest.load((String)"{\"Request\" : {\"XPathVersion\" : \"http://some/other/default/uri \" }}");
			fail("Request should throw exception");
		} catch (JSONStructureException e) {
			// correct response
		} catch (Exception e) {
			fail ("Failed convert from JSON to object: " + e);
		}
		
	}
	
	
	
	// test just one of each top-level element.
	// For simple elements also test for incorrect type
	@Test
	public void testTopLevelElements() {
		
		// empty request
		try {
			request = JSONRequest.load((String)"{\"Request\" : {}}");
			assertEquals("{returnPolicyIdList=false,combinedDecision=false}", request.toString());
		} catch (Exception e) {
			fail ("Failed convert from JSON to object: " + e);
		}
		

		
		// ReturnPolicyIdList
		try {
			request = JSONRequest.load((String)"{\"Request\" : {\"ReturnPolicyIdList\" : true  }}");
			assertEquals("{returnPolicyIdList=true,combinedDecision=false}", request.toString());
		} catch (Exception e) {
			fail ("Failed convert from JSON to object: " + e);
		}
		
		try {
			request = JSONRequest.load((String)"{\"Request\" : {\"ReturnPolicyIdList\" : \"abc\"  }}");
			fail("Request should throw exception");
		} catch (JSONStructureException e) {
			// correct response
		} catch (Exception e) {
			fail ("Failed convert from JSON to object: " + e);
		}
		try {
			request = JSONRequest.load((String)"{\"Request\" : {\"ReturnPolicyIdList\" : 123  }}");
			fail("Request should throw exception");
		} catch (JSONStructureException e) {
			// correct response
		} catch (Exception e) {
			fail ("Failed convert from JSON to object: " + e);
		}
		
		// CombinedDecision
		try {
			request = JSONRequest.load((String)"{\"Request\" : { \"CombinedDecision\" : true }}");
			assertEquals("{returnPolicyIdList=false,combinedDecision=true}", request.toString());
		} catch (Exception e) {
			fail ("Failed convert from JSON to object: " + e);
		}
		
		try {
			request = JSONRequest.load((String)"{\"Request\" : {\"CombinedDecision\" : \"abc\"  }}");
			fail("Request should throw exception");
		} catch (JSONStructureException e) {
			// correct response
		} catch (Exception e) {
			fail ("Failed convert from JSON to object: " + e);
		}
		try {
			request = JSONRequest.load((String)"{\"Request\" : {\"CombinedDecision\" : 123  }}");
			fail("Request should throw exception");
		} catch (JSONStructureException e) {
			// correct response
		} catch (Exception e) {
			fail ("Failed convert from JSON to object: " + e);
		}
		
		// XPathVersion
		try {
			request = JSONRequest.load((String)"{\"Request\" : {\"XPathVersion\" : \"http://some/other/default/uri\" }}");
			assertEquals("{requestDefaults={xpatherVersion=http://some/other/default/uri},returnPolicyIdList=false,combinedDecision=false}", request.toString());
		} catch (Exception e) {
			fail ("Failed convert from JSON to object: " + e);
		}
		
		try {
			request = JSONRequest.load((String)"{\"Request\" : {\"XPathVersion\" : true  }}");
			fail("Request should throw exception");
		} catch (JSONStructureException e) {
			// correct response
		} catch (Exception e) {
			fail ("Failed convert from JSON to object: " + e);
		}
		try {
			request = JSONRequest.load((String)"{\"Request\" : {\"XPathVersion\" : 123  }}");
			fail("Request should throw exception");
		} catch (JSONStructureException e) {
			// correct response
		} catch (Exception e) {
			fail ("Failed convert from JSON to object: " + e);
		}
		
		try {
			request = JSONRequest.load((String)"{\"Request\" : {\"XPathVersion\" : \"not a uri\" }}");
			fail("Request should throw exception");
		} catch (JSONStructureException e) {
			// correct response
		} catch (Exception e) {
			fail ("Failed convert from JSON to object: " + e);
		}
		
		
		// Category
		try {
			request = JSONRequest.load((String)"{\"Request\" : {\"Category\": [{ " +
					    	"\"CategoryId\": \"another-custom-cat\", " +
					    	"\"Id\" : \"anotherXmlId\", " +
					    	"\"Attribute\" : []" +
					    "} " +
					"] }}");
			assertEquals("{returnPolicyIdList=false,combinedDecision=false,requestAttributes=[{super={category=another-custom-cat},xmlId=anotherXmlId}]}", request.toString());
		} catch (Exception e) {
			fail ("Failed convert from JSON to object: " + e);
		}
		
		// AccessSubject
		try {
			request = JSONRequest.load((String)"{\"Request\" : { \"AccessSubject\":{ }}}");
			assertEquals("{returnPolicyIdList=false,combinedDecision=false,requestAttributes=[{super={category=urn:oasis:names:tc:xacml:1.0:subject-category:access-subject}}]}", request.toString());
		} catch (Exception e) {
			fail ("Failed convert from JSON to object: " + e);
		}
		
		// Action
		try {
			request = JSONRequest.load((String)"{\"Request\" : { \"Action\":{ }}}");
			assertEquals("{returnPolicyIdList=false,combinedDecision=false,requestAttributes=[{super={category=urn:oasis:names:tc:xacml:3.0:attribute-category:action}}]}", request.toString());
		} catch (Exception e) {
			fail ("Failed convert from JSON to object: " + e);
		}
		
		// Resource
		try {
			request = JSONRequest.load((String)"{\"Request\" : {\"Resource\":{ }}}");
			assertEquals("{returnPolicyIdList=false,combinedDecision=false,requestAttributes=[{super={category=urn:oasis:names:tc:xacml:3.0:attribute-category:resource}}]}", request.toString());
		} catch (Exception e) {
			fail ("Failed convert from JSON to object: " + e);
		}
		
		// Environment
		try {
			request = JSONRequest.load((String)"{\"Request\" : {\"Environment\":{ } }}");
			assertEquals("{returnPolicyIdList=false,combinedDecision=false,requestAttributes=[{super={category=urn:oasis:names:tc:xacml:3.0:attribute-category:environment}}]}", request.toString());
		} catch (Exception e) {
			fail ("Failed convert from JSON to object: " + e);
		}
		
		// MultiRequests
		try {
			request = JSONRequest.load((String)"{\"Request\" : {\"MultiRequests\" : {" +
			            "\"RequestReference\": [" +
			            	"{ " +
			                	"\"ReferenceId\" : [\"foo1\",\"bar1\"]" +
			                "}," +
			                "{" +
			                	"\"ReferenceId\" : [\"foo2\",\"bar2\"]" +
			                "}]" +   
			          "} } }");
			assertEquals("{returnPolicyIdList=false,combinedDecision=false,multiRequests=[{requestAttributesReferences=[{referenceId=foo1}{referenceId=bar1}]}{requestAttributesReferences=[{referenceId=foo2}{referenceId=bar2}]}]}", request.toString());
		} catch (Exception e) {
			fail ("Failed convert from JSON to object: " + e);
		}
		
		// MultiRequest with 1
		try {
			request = JSONRequest.load((String)"{\"Request\" : {\"MultiRequests\" : {" +
			            "\"RequestReference\": [" +
			                "{" +
			                	"\"ReferenceId\" : [\"bar2\"]" +
			                "}]" +   
			          "} } }");
			assertEquals("{returnPolicyIdList=false,combinedDecision=false,multiRequests=[{requestAttributesReferences=[{referenceId=bar2}]}]}", request.toString());
		} catch (Exception e) {
			fail ("Failed convert from JSON to object: " + e);
		}
		
		// MultiRequest with RequestReferences with no ReferenceId
		try {
			request = JSONRequest.load((String)"{\"Request\" : {\"MultiRequests\" : {" +
			            "\"RequestReference\": [" +
			                "{" +
			                	"\"ReferenceId\" : []" +
			                "}]" +   
			          "} } }");
			assertEquals("{returnPolicyIdList=false,combinedDecision=false}", request.toString());
		} catch (Exception e) {
			fail ("Failed convert from JSON to object: " + e);
		}
		

		// MultiRequests with no RequestReference
		try {
			request = JSONRequest.load((String)"{\"Request\" : {\"MultiRequests\" : {" +
			            "\"RequestReference\": []" +   
			          "} } }");
			fail("Request should throw exception");
		} catch (JSONStructureException e) {
			// correct response
		} catch (Exception e) {
			fail ("Failed convert from JSON to object: " + e);
		}
		
		// MultiRequests with something other than RequestReference
		try {
			request = JSONRequest.load((String)"{\"Request\" : {\"MultiRequests\" : {" +
			            "\"SomeOtherAttribute\": 123" +   
			          "} } }");
			fail("Request should throw exception");
		} catch (JSONStructureException e) {
			// correct response
		} catch (Exception e) {
			fail ("Failed convert from JSON to object: " + e);
		}
		
		// MultiRequests with single RequestReference rather than array
		try {
			request = JSONRequest.load((String)"{\"Request\" : {\"MultiRequests\" : {" +
			            "\"RequestReference\": " +
			                "{" +
			                	"\"ReferenceId\" : []" +
			                "}" +   
			          "} } }");
			fail("Request should throw exception");
		} catch (JSONStructureException e) {
			// correct response
		} catch (Exception e) {
			fail ("Failed convert from JSON to object: " + e);
		}
		
		// MultiRequests with RequestReference containing single element instead of array
		try {
			request = JSONRequest.load((String)"{\"Request\" : {\"MultiRequests\" : {" +
			            "\"RequestReference\": [" +
			                "{" +
			                	"\"ReferenceId\" : \"foo1\"" +
			                "}]" +   
			          "} } }");
			fail("Request should throw exception");
		} catch (JSONStructureException e) {
			// correct response
		} catch (Exception e) {
			fail ("Failed convert from JSON to object: " + e);
		}
		try {
			request = JSONRequest.load((String)"{\"Request\" : {\"MultiRequests\" : {" +
			            "\"RequestReference\": [" +
			                "{" +
			                	"\"ReferenceId\" : {\"foo1\"}" +
			                "}]" +   
			          "} } }");
			fail("Request should throw exception");
		} catch (JSONStructureException e) {
			// correct response
		} catch (Exception e) {
			fail ("Failed convert from JSON to object: " + e);
		}
		
		// MultiRequests with component that is not a RequestReference
		try {
			request = JSONRequest.load((String)"{\"Request\" : {\"MultiRequests\" : {" +
			            "\"RequestReference\": [" +
			            	"{ " +
			                	"\"SomeOtherAttribute\" : [\"foo1\",\"bar1\"]" +
			                "}," +
			                "{" +
			                	"\"ReferenceId\" : [\"foo2\",\"bar2\"]" +
			                "}]" +   
			          "} } }");
			fail("Request should throw exception");
		} catch (JSONStructureException e) {
			// correct response
		} catch (Exception e) {
			fail ("Failed convert from JSON to object: " + e);
		}
		
		// MultiRequests with component that is not a RequestReference
		try {
			request = JSONRequest.load((String)"{\"Request\" : {\"MultiRequests\" : {" +
			            "\"RequestReference\": [" +
			            	"{ " +
		                		"\"ReferenceId\" : [\"foo2\",\"bar2\"]," +
			                	"\"SomeOtherAttribute\" : [\"foo1\",\"bar1\"]" +
			                "}," +
			                "{" +
			                	"\"ReferenceId\" : [\"foo2\",\"bar2\"]" +
			                "}]" +   
			          "} } }");
			fail("Request should throw exception");
		} catch (JSONStructureException e) {
			// correct response
		} catch (Exception e) {
			fail ("Failed convert from JSON to object: " + e);
		}
		
		// MultiRequest with unknown elements (in addition to RequestReference)
		try {
			request = JSONRequest.load((String)"{\"Request\" : {\"MultiRequests\" : {" +
		            	"\"SomeOtherAttribute\": 123," +   
			            "\"RequestReference\": [" +
			            	"{ " +
			                	"\"ReferenceId\" : [\"foo1\",\"bar1\"]" +
			                "}," +
			                "{" +
			                	"\"ReferenceId\" : [\"foo2\",\"bar2\"]" +
			                "}]" +   
			          "} } }");
			fail("Request should throw exception");
		} catch (JSONStructureException e) {
			// correct response
		} catch (Exception e) {
			fail ("Failed convert from JSON to object: " + e);
		}
		
		// MultiRequest with RequestReferences with  ReferenceId NOT a string
		try {
			request = JSONRequest.load((String)"{\"Request\" : {\"MultiRequests\" : {" +
			            "\"RequestReference\": [" +
			                "{" +
			                	"\"ReferenceId\" : [ true ]" +
			                "}]" +   
			          "} } }");
			fail("Request should throw exception");
		} catch (JSONStructureException e) {
			// correct response
		} catch (Exception e) {
			fail ("Failed convert from JSON to object: " + e);
		}
		
		try {
			request = JSONRequest.load((String)"{\"Request\" : {\"MultiRequests\" : {" +
			            "\"RequestReference\": [" +
			                "{" +
			                	"\"ReferenceId\" : [ 123 ]" +
			                "}]" +   
			          "} } }");
			fail("Request should throw exception");
		} catch (JSONStructureException e) {
			// correct response
		} catch (Exception e) {
			fail ("Failed convert from JSON to object: " + e);
		}
		
		
		// Cannot test with ReferenceId that is NOT referring to a Category object Id property because we may not have read the Category objects yet.
		// Need to leave this up to the PDP.

		
		// extra elements in top-level
		try {
			request = JSONRequest.load((String)"{\"Request\" : {}, \"unknownElement\" : false, \"unk2\" : \"abc\", \"unk3\" : 123 }}");
			fail("Unknown element should throw exception");
		} catch (JSONStructureException e) {
			// correct response
		} catch (Exception e) {
			fail ("Failed convert from JSON to object: " + e);
		}
		
		// extra elements in Request
		try {
			request = JSONRequest.load((String)"{\"Request\" : {\"XPathVersion\" : \"http://www.w3.org/TR/1999/REC-xpath-19991116\", \"unknownElement\" : false }}");
			fail("Unknown element should throw exception");
		} catch (JSONStructureException e) {
			// correct response
		} catch (Exception e) {
			fail ("Failed convert from JSON to object: " + e);
		}
	}
	
	
	// Test with every field filled in with multiple values where appropriate
	@Test
	public void testAllFieldsRequest() {	
	
		// convert Response to JSON
		try {
			request = JSONRequest.load(allFieldsRequest);
			assertEquals("{requestDefaults={xpatherVersion=http://www.w3.org/TR/1999/REC-xpath-19991116},returnPolicyIdList=true,combinedDecision=true,requestAttributes=[{super={category=custom-category,attributes=[{attributeId=document-id,category=custom-category,values=[{dataTypeId=http://www.w3.org/2001/XMLSchema#integer,value=123}],includeInResults=false}{attributeId=document-url,category=custom-category,values=[{dataTypeId=http://www.w3.org/2001/XMLSchema#anyURI,value=http://somewhere.over.the.com/rainbow}],includeInResults=false}{attributeId=page-list,category=custom-category,values=[{dataTypeId=http://www.w3.org/2001/XMLSchema#double,value=1.0}{dataTypeId=http://www.w3.org/2001/XMLSchema#double,value=2.0}{dataTypeId=http://www.w3.org/2001/XMLSchema#double,value=3.0}{dataTypeId=http://www.w3.org/2001/XMLSchema#double,value=4.5}{dataTypeId=http://www.w3.org/2001/XMLSchema#double,value=3.0}{dataTypeId=http://www.w3.org/2001/XMLSchema#double,value=2.0}{dataTypeId=http://www.w3.org/2001/XMLSchema#double,value=1.0}],includeInResults=false}]},xmlId=customId}{super={category=another-custom-cat},xmlId=anotherXmlId}{super={category=urn:oasis:names:tc:xacml:1.0:subject-category:access-subject},contentRoot=[catalog: null]}{super={category=urn:oasis:names:tc:xacml:3.0:attribute-category:resource},contentRoot=[catalog: null]}],multiRequests=[{requestAttributesReferences=[{referenceId=foo1}{referenceId=bar1}]}{requestAttributesReferences=[{referenceId=foo2}{referenceId=bar1}]}]}"
					, request.toString());
		} catch (Exception e) {
			fail ("Failed convert from JSON to object: " + e);
		}
		
		
		// convert example request from spec
		try {
			request = JSONRequest.load(exampleFromSpec);
			assertEquals("{returnPolicyIdList=false,combinedDecision=false,requestAttributes=[{super={category=urn:oasis:names:tc:xacml:1.0:subject-category:access-subject,attributes=[{attributeId=subject-id,category=urn:oasis:names:tc:xacml:1.0:subject-category:access-subject,values=[{dataTypeId=http://www.w3.org/2001/XMLSchema#string,value=Andreas}],includeInResults=false}{attributeId=location,category=urn:oasis:names:tc:xacml:1.0:subject-category:access-subject,values=[{dataTypeId=http://www.w3.org/2001/XMLSchema#string,value=Gamla Stan}],includeInResults=false}]}}{super={category=urn:oasis:names:tc:xacml:3.0:attribute-category:action,attributes=[{attributeId=action-id,category=urn:oasis:names:tc:xacml:3.0:attribute-category:action,values=[{dataTypeId=http://www.w3.org/2001/XMLSchema#anyURI,value=http://www.xacml.eu/buy}],includeInResults=false}]}}{super={category=urn:oasis:names:tc:xacml:3.0:attribute-category:resource,attributes=[{attributeId=book-title,category=urn:oasis:names:tc:xacml:3.0:attribute-category:resource,values=[{dataTypeId=http://www.w3.org/2001/XMLSchema#string,value=Learn German in 90 days}],includeInResults=false}{attributeId=currency,category=urn:oasis:names:tc:xacml:3.0:attribute-category:resource,values=[{dataTypeId=http://www.w3.org/2001/XMLSchema#string,value=SEK}],includeInResults=false}{attributeId=price,category=urn:oasis:names:tc:xacml:3.0:attribute-category:resource,values=[{dataTypeId=http://www.w3.org/2001/XMLSchema#double,value=123.34}],includeInResults=false}]}}]}", request.toString());
		} catch (Exception e) {
			fail ("Failed convert from JSON to object: " + e);
		}
		
		// convert example request from spec containing XPAthExpression
		try {
			request = JSONRequest.load(xPathExampleFromSpec);
			assertEquals("{returnPolicyIdList=false,combinedDecision=false,requestAttributes=[{super={category=urn:oasis:names:tc:xacml:3.0:attribute-category:resource,attributes=[{attributeId=urn:oasis:names:tc:xacml:3.0:content-selector,category=urn:oasis:names:tc:xacml:3.0:attribute-category:resource,values=[{dataTypeId=urn:oasis:names:tc:xacml:3.0:data-type:xpathExpression,value={path=md:record/md:patient/md:patientDoB,Namespace={[{md,urn:example:med:schemas:record}{urn:oasis:names:tc:xacml:3.0:core:schema:wd-17}]},status=null,xpathExpressionWrapped=null},xpathCategory=urn:oasis:names:tc:xacml:3.0:attribute-category:resource}],includeInResults=false}]}}]}", request.toString());
		} catch (Exception e) {
			fail ("Failed convert from JSON to object: " + e);
		}
		
	
	}
	
	
	
	// Duplicates - Each element duplicated
	@Test
	public void testDuplicates() {
		// duplicate Request
		try {
			request = JSONRequest.load((String)"{\"Request\" : {}, \"Request\" : {}}");
			fail("Unknown element should throw exception");
		} catch (JSONStructureException e) {
			// correct response
		} catch (Exception e) {
			fail ("Failed convert from JSON to object: " + e);
		}
		
		
		try {
			request = JSONRequest.load((String)"{\"Request\" : {\"ReturnPolicyIdList\" : true, \"ReturnPolicyIdList\" : true   }}");
			fail("Unknown element should throw exception");
		} catch (JSONStructureException e) {
			// correct response
		} catch (Exception e) {
			fail ("Failed convert from JSON to object: " + e);
		}
		
		try {
			request = JSONRequest.load((String)"{\"Request\" : { \"CombinedDecision\" : true, \"CombinedDecision\" : true }}");
			fail("Unknown element should throw exception");
		} catch (JSONStructureException e) {
			// correct response
		} catch (Exception e) {
			fail ("Failed convert from JSON to object: " + e);
		}
		
		
		try {
			request = JSONRequest.load((String)"{\"Request\" : {\"Category\": [{ " +
					    	"\"CategoryId\": \"another-custom-cat\", " +
					    	"\"Id\" : \"anotherXmlId\", " +
					    	"\"Attribute\" : []" +
					    "} " +
					"],"
					+ "\"Category\": [{ " +
					    	"\"CategoryId\": \"another-custom-cat\", " +
					    	"\"Id\" : \"anotherXmlId\", " +
					    	"\"Attribute\" : []" +
					    "} " +
					"] }}");
			assertEquals("{returnPolicyIdList=false,combinedDecision=false,requestAttributes=[{super={category=another-custom-cat},xmlId=anotherXmlId}]}", request.toString());
			fail("Unknown element should throw exception");
		} catch (JSONStructureException e) {
			// correct response
		} catch (Exception e) {
			fail ("Failed convert from JSON to object: " + e);
		}
		
		try {
			request = JSONRequest.load((String)"{\"Request\" : {\"Category\": [{ " +
					    	"\"CategoryId\": \"another-custom-cat\", " +
					    	"\"CategoryId\": \"another-custom-cat\", " +
					    	"\"Id\" : \"anotherXmlId\", " +
					    	"\"Attribute\" : []" +
					    "} " +
					"] }}");
			fail("Unknown element should throw exception");
		} catch (JSONStructureException e) {
			// correct response
		} catch (Exception e) {
			fail ("Failed convert from JSON to object: " + e);
		}
		
		try {
			request = JSONRequest.load((String)"{\"Request\" : {\"Category\": [{ " +
					    	"\"CategoryId\": \"another-custom-cat\", " +
					    	"\"Id\" : \"anotherXmlId\", " +
					    	"\"Id\" : \"anotherXmlId\", " +
					    	"\"Attribute\" : []" +
					    "} " +
					"] }}");
			fail("Unknown element should throw exception");
		} catch (JSONStructureException e) {
			// correct response
		} catch (Exception e) {
			fail ("Failed convert from JSON to object: " + e);
		}
		
		try {
			request = JSONRequest.load((String)"{\"Request\" : {\"Category\": [{ " +
					    	"\"CategoryId\": \"another-custom-cat\", " +
					    	"\"Id\" : \"anotherXmlId\", " +
					    	"\"Attribute\" : []" +
					    	"\"Attribute\" : []" +
					    "} " +
					"] }}");
			fail("Unknown element should throw exception");
		} catch (JSONStructureException e) {
			// correct response
		} catch (Exception e) {
			fail ("Failed convert from JSON to object: " + e);
		}
		
		
		// AccessSubject
		try {
			request = JSONRequest.load((String)"{\"Request\" : { \"AccessSubject\":{ }, \"AccessSubject\":{ }}}");
			fail("Unknown element should throw exception");
		} catch (JSONStructureException e) {
			// correct response
		} catch (Exception e) {
			fail ("Failed convert from JSON to object: " + e);
		}
		
		// Action
		try {
			request = JSONRequest.load((String)"{\"Request\" : { \"Action\":{ }, \"Action\":{ }}}");
			fail("Unknown element should throw exception");
		} catch (JSONStructureException e) {
			// correct response
		} catch (Exception e) {
			fail ("Failed convert from JSON to object: " + e);
		}
		
		// Resource
		try {
			request = JSONRequest.load((String)"{\"Request\" : {\"Resource\":{ }, \"Resource\":{ }}}");
			fail("Unknown element should throw exception");
		} catch (JSONStructureException e) {
			// correct response
		} catch (Exception e) {
			fail ("Failed convert from JSON to object: " + e);
		}
		
		// Environment
		try {
			request = JSONRequest.load((String)"{\"Request\" : {\"Environment\":{ }, \"Environment\":{ } }}");
			fail("Unknown element should throw exception");
		} catch (JSONStructureException e) {
			// correct response
		} catch (Exception e) {
			fail ("Failed convert from JSON to object: " + e);
		}
		
		// MultiRequests

		
		try {
			request = JSONRequest.load((String)"{\"Request\" : {\"MultiRequests\" : {" +
			            "\"RequestReference\": [" +
			            	"{ " +
			                	"\"ReferenceId\" : [\"foo1\",\"bar1\"]" +
			                "}," +
			                "{" +
			                	"\"ReferenceId\" : [\"foo2\",\"bar2\"]" +
			                "}]" +   
			          "},"
			          + "\"MultiRequests\" : {" +
			            "\"RequestReference\": [" +
			            	"{ " +
			                	"\"ReferenceId\" : [\"foo1\",\"bar1\"]" +
			                "}," +
			                "{" +
			                	"\"ReferenceId\" : [\"foo2\",\"bar2\"]" +
			                "}]" +   
			          "}  } }");
			fail("Unknown element should throw exception");
		} catch (JSONStructureException e) {
			// correct response
		} catch (Exception e) {
			fail ("Failed convert from JSON to object: " + e);
		}
		
		try {
			request = JSONRequest.load((String)"{\"Request\" : {\"MultiRequests\" : {" +
			            "\"RequestReference\": [" +
			            	"{ " +
			                	"\"ReferenceId\" : [\"foo1\",\"bar1\"]" +
			                "}," +
			                "{" +
			                	"\"ReferenceId\" : [\"foo2\",\"bar2\"]" +
			                "}]," + 
			                "\"RequestReference\": [" +
			            	"{ " +
			                	"\"ReferenceId\" : [\"foo1\",\"bar1\"]" +
			                "}," +
			                "{" +
			                	"\"ReferenceId\" : [\"foo2\",\"bar2\"]" +
			                "}]" +
			          "} } }");
			fail("Unknown element should throw exception");
		} catch (JSONStructureException e) {
			// correct response
		} catch (Exception e) {
			fail ("Failed convert from JSON to object: " + e);
		}
		
		try {
			request = JSONRequest.load((String)"{\"Request\" : {\"MultiRequests\" : {" +
			            "\"RequestReference\": [" +
			            	"{ " +
			                	"\"ReferenceId\" : [\"foo1\",\"bar1\"]" +
			                	"\"ReferenceId\" : [\"foo1\",\"bar1\"]" +
			                "}," +
			                "{" +
			                	"\"ReferenceId\" : [\"foo2\",\"bar2\"]" +
			                "}]" +   
			          "} } }");
			fail("Unknown element should throw exception");
		} catch (JSONStructureException e) {
			// correct response
		} catch (Exception e) {
			fail ("Failed convert from JSON to object: " + e);
		}
	}
	

}