/*
* 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.commons.json.test;
import java.util.Iterator;
import junit.framework.Assert;
import org.apache.sling.commons.json.JSONArray;
import org.apache.sling.commons.json.JSONException;
import org.apache.sling.commons.json.JSONObject;
/**
* Provides assertions on equality for JSON Arrays and Objects.
*
* Based on code written by Andres Almiray <aalmiray@users.sourceforge.net> as
* part of the json-lib project - http://json-lib.sourceforge.net/
*/
public class JSONAssert extends Assert {
/**
* Asserts that two JSONArrays are equal.
*/
public static void assertEquals(JSONArray expected, JSONArray actual)
throws JSONException {
assertEquals(null, expected, actual);
}
/**
* Asserts that two JSONObjects are equal.
*/
public static void assertEquals(JSONObject expected, JSONObject actual)
throws JSONException {
assertEquals(null, expected, actual);
}
/**
* Asserts that two JSONArrays are equal.
*/
public static void assertEquals(String message, JSONArray expected,
JSONArray actual) throws JSONException {
String header = message == null ? "" : message + ": ";
if (expected == null) {
fail(header + "expected array was null");
}
if (actual == null) {
fail(header + "actual array was null");
}
if (expected == actual || expected.equals(actual)) {
return;
}
if (actual.length() != expected.length()) {
fail(header + "arrays sizes differed, expected.length()="
+ expected.length() + " actual.length()=" + actual.length());
}
int max = expected.length();
for (int i = 0; i < max; i++) {
Object o1 = expected.get(i);
Object o2 = actual.get(i);
// handle nulls
if (JSONObject.NULL.equals(o1)) {
if (JSONObject.NULL.equals(o2)) {
continue;
}
fail(header + "arrays first differed at element [" + i
+ "];");
} else {
if (JSONObject.NULL.equals(o2)) {
fail(header + "arrays first differed at element [" + i
+ "];");
}
}
if (o1 instanceof JSONArray && o2 instanceof JSONArray) {
JSONArray e = (JSONArray) o1;
JSONArray a = (JSONArray) o2;
assertEquals(header + "arrays first differed at element " + i
+ ";", e, a);
} else if (o1 instanceof JSONObject && o2 instanceof JSONObject) {
assertEquals(header + "arrays first differed at element [" + i
+ "];", (JSONObject) o1, (JSONObject) o2);
} else if (o1 instanceof String) {
assertEquals(header + "arrays first differed at element [" + i
+ "];", (String) o1, String.valueOf(o2));
} else if (o2 instanceof String) {
assertEquals(header + "arrays first differed at element [" + i
+ "];", String.valueOf(o1), (String) o2);
} else {
assertEquals(header + "arrays first differed at element [" + i
+ "];", o1, o2);
}
}
}
/**
* Asserts that two JSONObjects are equal.
*/
public static void assertEquals(String message, JSONObject expected,
JSONObject actual) throws JSONException {
String header = message == null ? "" : message + ": ";
if (expected == null) {
fail(header + "expected object was null");
}
if (actual == null) {
fail(header + "actual object was null");
}
if (expected == actual /* || expected.equals( actual ) */) {
return;
}
JSONArray expectedNames = expected.names();
JSONArray actualNames = actual.names();
if (expectedNames == null && actualNames == null) {
return;
}
if (expectedNames == null) {
expectedNames = new JSONArray();
}
if (actualNames == null) {
actualNames = new JSONArray();
}
assertEquals(header
+ "names sizes differed, expected.names().length()="
+ expectedNames.length() + " actual.names().length()="
+ actualNames.length(), expectedNames.length(), actualNames
.length());
for (Iterator<String> keys = expected.keys(); keys.hasNext();) {
String key = keys.next();
Object o1 = expected.opt(key);
Object o2 = actual.opt(key);
if (JSONObject.NULL.equals(o1)) {
if (JSONObject.NULL.equals(o2)) {
continue;
}
fail(header + "objects differed at key [" + key + "];");
} else {
if (JSONObject.NULL.equals(o2)) {
fail(header + "objects differed at key [" + key + "];");
}
}
if (o1 instanceof JSONObject && o2 instanceof JSONObject) {
assertEquals(header + "objects differed at key [" + key + "];",
(JSONObject) o1, (JSONObject) o2);
} else if (o1 instanceof JSONArray && o2 instanceof JSONArray) {
assertEquals(header + "objects differed at key [" + key + "];",
(JSONArray) o1, (JSONArray) o2);
} else if (o1 instanceof String) {
assertEquals(header + "objects differed at key [" + key + "];",
(String) o1, String.valueOf(o2));
} else if (o2 instanceof String) {
assertEquals(header + "objects differed at key [" + key + "];",
String.valueOf(o1), (String) o2);
} else {
assertEquals(header + "objects differed at key [" + key + "];",
o1, o2);
}
}
}
}