mirror of
https://github.com/ethauvin/JSON-java.git
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359 lines
12 KiB
Java
359 lines
12 KiB
Java
package org.json.junit;
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import static org.junit.Assert.assertEquals;
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import static org.junit.Assert.assertSame;
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import static org.junit.Assert.assertTrue;
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import static org.junit.Assert.fail;
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import java.io.IOException;
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import java.io.InputStream;
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import org.json.JSONArray;
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import org.json.JSONObject;
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import org.json.JSONPointer;
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import org.json.JSONPointerException;
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import org.json.JSONTokener;
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import org.junit.Test;
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public class JSONPointerTest {
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private static final JSONObject document;
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static {
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@SuppressWarnings("resource")
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InputStream resourceAsStream = JSONPointerTest.class.getClassLoader().getResourceAsStream("jsonpointer-testdoc.json");
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if(resourceAsStream == null) {
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throw new ExceptionInInitializerError("Unable to locate test file. Please check your development environment configuration");
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}
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document = new JSONObject(new JSONTokener(resourceAsStream));
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}
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private Object query(String pointer) {
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return new JSONPointer(pointer).queryFrom(document);
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}
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@Test
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public void emptyPointer() {
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assertSame(document, query(""));
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}
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@Test(expected = NullPointerException.class)
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public void nullPointer() {
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new JSONPointer((String) null);
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}
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@Test
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public void objectPropertyQuery() {
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assertSame(document.get("foo"), query("/foo"));
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}
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@Test
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public void arrayIndexQuery() {
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assertSame(document.getJSONArray("foo").get(0), query("/foo/0"));
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}
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@Test(expected = JSONPointerException.class)
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public void stringPropOfArrayFailure() {
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query("/foo/bar");
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}
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@Test
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public void queryByEmptyKey() {
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assertSame(document.get(""), query("/"));
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}
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@Test
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public void queryByEmptyKeySubObject() {
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assertSame(document.getJSONObject("obj").getJSONObject(""), query("/obj/"));
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}
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@Test
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public void queryByEmptyKeySubObjectSubOject() {
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assertSame(
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document.getJSONObject("obj").getJSONObject("").get(""),
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query("/obj//")
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);
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}
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@Test
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public void queryByEmptyKeySubObjectValue() {
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assertSame(
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document.getJSONObject("obj").getJSONObject("").get("subKey"),
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query("/obj//subKey")
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);
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}
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@Test
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public void slashEscaping() {
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assertSame(document.get("a/b"), query("/a~1b"));
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}
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@Test
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public void tildeEscaping() {
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assertSame(document.get("m~n"), query("/m~0n"));
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}
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@Test
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public void backslashEscaping() {
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assertSame(document.get("i\\j"), query("/i\\\\j"));
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}
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@Test
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public void quotationEscaping() {
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assertSame(document.get("k\"l"), query("/k\\\\\\\"l"));
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}
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@Test
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public void whitespaceKey() {
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assertSame(document.get(" "), query("/ "));
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}
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@Test
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public void uriFragmentNotation() {
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assertSame(document.get("foo"), query("#/foo"));
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}
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@Test
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public void uriFragmentNotationRoot() {
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assertSame(document, query("#"));
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}
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@Test
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public void uriFragmentPercentHandling() {
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assertSame(document.get("c%d"), query("#/c%25d"));
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assertSame(document.get("e^f"), query("#/e%5Ef"));
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assertSame(document.get("g|h"), query("#/g%7Ch"));
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assertSame(document.get("m~n"), query("#/m~0n"));
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}
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@Test(expected = IllegalArgumentException.class)
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public void syntaxError() {
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new JSONPointer("key");
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}
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@Test(expected = JSONPointerException.class)
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public void arrayIndexFailure() {
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query("/foo/2");
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}
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@Test(expected = JSONPointerException.class)
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public void primitiveFailure() {
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query("/obj/key/failure");
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}
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@Test
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public void builderTest() {
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JSONPointer pointer = JSONPointer.builder()
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.append("obj")
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.append("other~key").append("another/key")
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.append(0)
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.build();
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assertEquals("val", pointer.queryFrom(document));
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}
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@Test(expected = NullPointerException.class)
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public void nullToken() {
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JSONPointer.builder().append(null);
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}
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@Test
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public void toStringEscaping() {
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JSONPointer pointer = JSONPointer.builder()
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.append("obj")
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.append("other~key").append("another/key")
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.append("\"")
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.append(0)
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.build();
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assertEquals("/obj/other~0key/another~1key/\\\"/0", pointer.toString());
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}
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@Test
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public void emptyPointerToString() {
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assertEquals("", new JSONPointer("").toString());
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}
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@Test
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public void toURIFragment() {
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assertEquals("#/c%25d", new JSONPointer("/c%d").toURIFragment());
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assertEquals("#/e%5Ef", new JSONPointer("/e^f").toURIFragment());
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assertEquals("#/g%7Ch", new JSONPointer("/g|h").toURIFragment());
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assertEquals("#/m%7En", new JSONPointer("/m~n").toURIFragment());
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}
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@Test
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public void tokenListIsCopiedInConstructor() {
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JSONPointer.Builder b = JSONPointer.builder().append("key1");
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JSONPointer jp1 = b.build();
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b.append("key2");
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JSONPointer jp2 = b.build();
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if(jp1.toString().equals(jp2.toString())) {
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fail("Oops, my pointers are sharing a backing array");
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}
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}
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/**
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* Coverage for JSONObject query(String)
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*/
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@Test
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public void queryFromJSONObject() {
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String str = "{"+
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"\"stringKey\":\"hello world!\","+
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"\"arrayKey\":[0,1,2],"+
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"\"objectKey\": {"+
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"\"a\":\"aVal\","+
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"\"b\":\"bVal\""+
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"}"+
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"}";
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JSONObject jsonObject = new JSONObject(str);
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Object obj = jsonObject.query("/stringKey");
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assertTrue("Expected 'hello world!'", "hello world!".equals(obj));
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obj = jsonObject.query("/arrayKey/1");
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assertTrue("Expected 1", Integer.valueOf(1).equals(obj));
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obj = jsonObject.query("/objectKey/b");
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assertTrue("Expected bVal", "bVal".equals(obj));
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try {
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obj = jsonObject.query("/a/b/c");
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assertTrue("Expected JSONPointerException", false);
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} catch (JSONPointerException e) {
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assertTrue("Expected bad key/value exception",
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"value [null] is not an array or object therefore its key b cannot be resolved".
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equals(e.getMessage()));
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}
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}
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/**
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* Coverage for JSONObject query(JSONPointer)
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*/
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@Test
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public void queryFromJSONObjectUsingPointer() {
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String str = "{"+
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"\"stringKey\":\"hello world!\","+
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"\"arrayKey\":[0,1,2],"+
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"\"objectKey\": {"+
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"\"a\":\"aVal\","+
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"\"b\":\"bVal\""+
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"}"+
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"}";
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JSONObject jsonObject = new JSONObject(str);
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Object obj = jsonObject.query(new JSONPointer("/stringKey"));
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assertTrue("Expected 'hello world!'", "hello world!".equals(obj));
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obj = jsonObject.query(new JSONPointer("/arrayKey/1"));
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assertTrue("Expected 1", Integer.valueOf(1).equals(obj));
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obj = jsonObject.query(new JSONPointer("/objectKey/b"));
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assertTrue("Expected bVal", "bVal".equals(obj));
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try {
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obj = jsonObject.query(new JSONPointer("/a/b/c"));
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assertTrue("Expected JSONPointerException", false);
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} catch (JSONPointerException e) {
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assertTrue("Expected bad key/value exception",
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"value [null] is not an array or object therefore its key b cannot be resolved".
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equals(e.getMessage()));
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}
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}
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/**
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* Coverage for JSONObject optQuery(JSONPointer)
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*/
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@Test
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public void optQueryFromJSONObjectUsingPointer() {
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String str = "{"+
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"\"stringKey\":\"hello world!\","+
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"\"arrayKey\":[0,1,2],"+
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"\"objectKey\": {"+
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"\"a\":\"aVal\","+
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"\"b\":\"bVal\""+
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"}"+
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"}";
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JSONObject jsonObject = new JSONObject(str);
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Object obj = jsonObject.optQuery(new JSONPointer("/stringKey"));
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assertTrue("Expected 'hello world!'", "hello world!".equals(obj));
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obj = jsonObject.optQuery(new JSONPointer("/arrayKey/1"));
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assertTrue("Expected 1", Integer.valueOf(1).equals(obj));
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obj = jsonObject.optQuery(new JSONPointer("/objectKey/b"));
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assertTrue("Expected bVal", "bVal".equals(obj));
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obj = jsonObject.optQuery(new JSONPointer("/a/b/c"));
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assertTrue("Expected null", obj == null);
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}
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/**
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* Coverage for JSONArray query(String)
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*/
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@Test
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public void queryFromJSONArray() {
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String str = "["+
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"\"hello world!\","+
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"[0,1,2],"+
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"{"+
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"\"a\":\"aVal\","+
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"\"b\":\"bVal\""+
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"}"+
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"]";
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JSONArray jsonArray = new JSONArray(str);
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Object obj = jsonArray.query("/0");
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assertTrue("Expected 'hello world!'", "hello world!".equals(obj));
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obj = jsonArray.query("/1/1");
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assertTrue("Expected 1", Integer.valueOf(1).equals(obj));
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obj = jsonArray.query("/2/b");
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assertTrue("Expected bVal", "bVal".equals(obj));
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try {
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obj = jsonArray.query("/a/b/c");
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assertTrue("Expected JSONPointerException", false);
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} catch (JSONPointerException e) {
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assertTrue("Expected bad index exception",
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"a is not an array index".equals(e.getMessage()));
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}
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}
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/**
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* Coverage for JSONArray query(JSONPointer)
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*/
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@Test
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public void queryFromJSONArrayUsingPointer() {
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String str = "["+
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"\"hello world!\","+
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"[0,1,2],"+
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"{"+
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"\"a\":\"aVal\","+
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"\"b\":\"bVal\""+
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"}"+
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"]";
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JSONArray jsonArray = new JSONArray(str);
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Object obj = jsonArray.query(new JSONPointer("/0"));
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assertTrue("Expected 'hello world!'", "hello world!".equals(obj));
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obj = jsonArray.query(new JSONPointer("/1/1"));
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assertTrue("Expected 1", Integer.valueOf(1).equals(obj));
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obj = jsonArray.query(new JSONPointer("/2/b"));
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assertTrue("Expected bVal", "bVal".equals(obj));
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try {
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obj = jsonArray.query(new JSONPointer("/a/b/c"));
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assertTrue("Expected JSONPointerException", false);
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} catch (JSONPointerException e) {
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assertTrue("Expected bad index exception",
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"a is not an array index".equals(e.getMessage()));
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}
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}
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/**
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* Coverage for JSONArray optQuery(JSONPointer)
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*/
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@Test
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public void optQueryFromJSONArrayUsingPointer() {
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String str = "["+
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"\"hello world!\","+
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"[0,1,2],"+
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"{"+
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"\"a\":\"aVal\","+
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"\"b\":\"bVal\""+
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"}"+
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"]";
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JSONArray jsonArray = new JSONArray(str);
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Object obj = jsonArray.optQuery(new JSONPointer("/0"));
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assertTrue("Expected 'hello world!'", "hello world!".equals(obj));
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obj = jsonArray.optQuery(new JSONPointer("/1/1"));
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assertTrue("Expected 1", Integer.valueOf(1).equals(obj));
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obj = jsonArray.optQuery(new JSONPointer("/2/b"));
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assertTrue("Expected bVal", "bVal".equals(obj));
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obj = jsonArray.optQuery(new JSONPointer("/a/b/c"));
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assertTrue("Expected null", obj == null);
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}
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}
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