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JsonPath
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testing JSONPath concepts

pull/1/merge
kalle 14 years ago
parent
9cf159fae9
commit
834c4465c0
8 changed files with 232 additions and 590 deletions
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  1. 10
      json-assert/src/main/java/com/jayway/jsonassert/JsonAssert.java
  2. 2
      json-assert/src/main/java/com/jayway/jsonassert/JsonPath.java
  3. 109
      json-assert/src/main/java/com/jayway/jsonassert/impl/JsonPathImpl.java
  4. 277
      json-assert/src/main/java/com/jayway/jsonassert/impl/JsonReaderImpl.java
  5. 10
      json-assert/src/main/java/com/jayway/jsonassert/impl/Path.java
  6. 7
      json-assert/src/main/java/com/jayway/jsonassert/impl/PathFragment.java
  7. 105
      json-assert/src/test/java/com/jayway/jsonassert/JsonPathSpecTest.java
  8. 300
      json-assert/src/test/java/com/jayway/jsonassert/JsonReaderTest.java

10
json-assert/src/main/java/com/jayway/jsonassert/JsonAssert.java
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@ -1,7 +1,7 @@
package com.jayway.jsonassert; package com.jayway.jsonassert;
import com.jayway.jsonassert.impl.JsonAsserterImpl; import com.jayway.jsonassert.impl.JsonAsserterImpl;
import com.jayway.jsonassert.impl.JsonReaderImpl; import com.jayway.jsonassert.impl.JsonPathImpl;
import java.io.IOException; import java.io.IOException;
import java.io.Reader; import java.io.Reader;
@ -22,7 +22,7 @@ public class JsonAssert {
* @throws ParseException * @throws ParseException
*/ */
public static JsonPath parse(String jsonDoc) throws ParseException { public static JsonPath parse(String jsonDoc) throws ParseException {
return JsonReaderImpl.parse(jsonDoc); return JsonPathImpl.parse(jsonDoc);
} }
/** /**
@ -48,7 +48,7 @@ public class JsonAssert {
public static JsonPath parse(Reader reader, boolean closeReader) throws ParseException, IOException { public static JsonPath parse(Reader reader, boolean closeReader) throws ParseException, IOException {
JsonPath jsonReader = null; JsonPath jsonReader = null;
try { try {
jsonReader = JsonReaderImpl.parse(reader); jsonReader = JsonPathImpl.parse(reader);
} finally { } finally {
if(closeReader){ if(closeReader){
try { try {
@ -67,7 +67,7 @@ public class JsonAssert {
* @throws ParseException when the given JSON could not be parsed * @throws ParseException when the given JSON could not be parsed
*/ */
public static JsonAsserter with(String json) throws ParseException { public static JsonAsserter with(String json) throws ParseException {
return new JsonAsserterImpl(JsonReaderImpl.parse(json)); return new JsonAsserterImpl(JsonPathImpl.parse(json));
} }
/** /**
@ -78,7 +78,7 @@ public class JsonAssert {
* @throws ParseException when the given JSON could not be parsed * @throws ParseException when the given JSON could not be parsed
*/ */
public static JsonAsserter with(Reader reader) throws ParseException, IOException { public static JsonAsserter with(Reader reader) throws ParseException, IOException {
return new JsonAsserterImpl(JsonReaderImpl.parse(reader)); return new JsonAsserterImpl(JsonPathImpl.parse(reader));
} }
} }

2
json-assert/src/main/java/com/jayway/jsonassert/JsonPath.java
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@ -71,5 +71,5 @@ public interface JsonPath {
* @param path * @param path
* @return * @return
*/ */
Map<String, Object> getMap(String path); <T> Map<String, T> getMap(String path);
} }

109
json-assert/src/main/java/com/jayway/jsonassert/impl/JsonPathImpl.java
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@ -16,7 +16,7 @@ import java.util.Map;
* User: kalle stenflo * User: kalle stenflo
* Date: 2/1/11 * Date: 2/1/11
* Time: 8:45 AM * Time: 8:45 AM
* * <p/>
* http://goessner.net/articles/JsonPath/ * http://goessner.net/articles/JsonPath/
*/ */
public class JsonPathImpl implements JsonPath { public class JsonPathImpl implements JsonPath {
@ -43,15 +43,101 @@ public class JsonPathImpl implements JsonPath {
} }
} }
public static <T> T jsonPath(Object model, String path) {
JsonPathImpl p = new JsonPathImpl(model);
return (T) p.get(path);
}
public JsonPathImpl(Object model) { public JsonPathImpl(Object model) {
this.model = model; this.model = model;
} }
private void searchFragment(Object visit, PathFragment fragment, PathFragment filter, ReaderContext ctx) {
ctx.split();
if (isDocument(visit)) {
Map<String, Object> document = toDocument(visit);
for (Map.Entry<String, Object> entry : document.entrySet()) {
if (entry.getKey().equals(fragment.value())) {
if (isArray(entry.getValue()) && filter.isArrayIndex()) {
JSONArray array = toArray(entry.getValue());
for (int i = 0; i < array.size(); i++) {
boolean include = true;
if (filter.isArrayIndex() && filter.getArrayIndex() != i) {
include = false;
}
if (include) {
ctx.addResult(array.get(i));
}
}
} else {
ctx.addResult(entry.getValue());
}
}
if (isContainer(entry.getValue())) {
searchFragment(entry.getValue(), fragment, filter, ctx);
}
}
} else {
JSONArray array = toArray(visit);
for (Object arrayItem : array) {
if (isContainer(arrayItem)) {
searchFragment(arrayItem, fragment, filter, ctx);
}
}
}
}
private void extractFragment(Object visit, PathFragment fragment, PathFragment criteria, ReaderContext ctx) {
ctx.split();
if (isDocument(visit)) {
Map<String, Object> document = toDocument(visit);
for (Map.Entry<String, Object> entry : document.entrySet()) {
if (entry.getKey().equals(fragment.value()) || fragment.isWildcard()) {
ctx.addResult(entry.getValue());
}
if (!fragment.isWildcard() && isContainer(entry.getValue())) {
extractFragment(entry.getValue(), fragment, criteria, ctx);
}
}
} else {
JSONArray array = toArray(visit);
for (Object arrayItem : array) {
if (isContainer(arrayItem)) {
extractFragment(arrayItem, fragment, criteria, ctx);
}
}
}
}
private void read(Object root, Path path, ReaderContext ctx, boolean strict) { private void read(Object root, Path path, ReaderContext ctx, boolean strict) {
if (!path.hasMoreFragments()) { if (!path.hasMoreFragments()) {
ctx.addResult(root); ctx.addResult(root);
return; return;
} }
if (path.peek().isWildcard()) {
PathFragment wildcard = path.poll();
PathFragment extract = path.hasMoreFragments() ? path.poll() : wildcard;
PathFragment filter = path.hasMoreFragments() ? path.poll() : wildcard;
searchFragment(root, extract, filter, ctx);
return;
}
if (isDocument(root)) { if (isDocument(root)) {
PathFragment fragment = path.poll(); PathFragment fragment = path.poll();
@ -59,12 +145,19 @@ public class JsonPathImpl implements JsonPath {
throw new InvalidPathException(); throw new InvalidPathException();
} }
Object extracted = toDocument(root).get(fragment.value()); Object current = toDocument(root).get(fragment.value());
if (fragment.isLeaf()) { if (path.hasMoreFragments() && path.peek().isWildcard()) {
ctx.addResult(extracted); PathFragment wildcard = path.poll();
PathFragment extract = path.hasMoreFragments() ? path.poll() : wildcard;
PathFragment filter = path.hasMoreFragments() ? path.poll() : wildcard;
extractFragment(current, extract, filter, ctx);
return;
}
else if (fragment.isLeaf()) {
ctx.addResult(current);
} else { } else {
read(extracted, path.clone(), ctx, strict); read(current, path.clone(), ctx, strict);
} }
} else { } else {
PathFragment fragment = path.poll(); PathFragment fragment = path.poll();
@ -163,10 +256,14 @@ public class JsonPathImpl implements JsonPath {
return get(path); return get(path);
} }
public Map<String, Object> getMap(String path) { public <T> Map<String, T> getMap(String path) {
return get(path); return get(path);
} }
private boolean isContainer(Object obj) {
return (isArray(obj) || isDocument(obj));
}
private boolean isArray(Object obj) { private boolean isArray(Object obj) {
return (obj instanceof JSONArray); return (obj instanceof JSONArray);
} }

277
json-assert/src/main/java/com/jayway/jsonassert/impl/JsonReaderImpl.java
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@ -1,277 +0,0 @@
package com.jayway.jsonassert.impl;
import com.jayway.jsonassert.InvalidPathException;
import com.jayway.jsonassert.JsonPath;
import org.json.simple.JSONArray;
import org.json.simple.JSONObject;
import org.json.simple.parser.JSONParser;
import org.json.simple.parser.ParseException;
import java.io.IOException;
import java.io.Reader;
import java.util.LinkedList;
import java.util.List;
import java.util.Map;
import static org.apache.commons.lang.Validate.notNull;
/**
* User: kalle stenflo
* Date: 1/20/11
* Time: 4:27 PM
*/
public class JsonReaderImpl implements JsonPath {
private static final JSONParser JSON_PARSER = new JSONParser();
private Object root;
private String currentPath;
public static synchronized JsonPath parse(Reader reader) throws java.text.ParseException, IOException {
try {
return new JsonReaderImpl(JSON_PARSER.parse(reader));
} catch (IOException e) {
throw e;
} catch (ParseException e) {
throw new java.text.ParseException(e.getMessage(), e.getPosition());
}
}
public static synchronized JsonPath parse(String jsonDoc) throws java.text.ParseException {
try {
return new JsonReaderImpl(JSON_PARSER.parse(jsonDoc));
} catch (ParseException e) {
throw new java.text.ParseException(e.getMessage(), e.getPosition());
}
}
private JsonReaderImpl(Object root) {
notNull(root, "root object can not be null");
this.root = root;
}
/**
* {@inheritDoc}
*/
public JsonPath getReader(String path) {
Object jsonObject = get(path);
if (!isArray(jsonObject) && !isDocument(jsonObject)) {
throw new InvalidPathException("path points to a leaf that is not a JSON document or Array");
}
return new JsonReaderImpl(jsonObject);
}
/**
* {@inheritDoc}
*/
public boolean hasJsonPath(String path) {
boolean contains = true;
try {
get(path);
} catch (InvalidPathException e) {
contains = false;
}
return contains;
}
/**
* {@inheritDoc}
*/
public boolean isNull(String path) {
return (null == get(path));
}
/**
* {@inheritDoc}
*/
@SuppressWarnings("unchecked")
public <T> T get(String path) {
return (T) getByPath(Object.class, path);
}
/**
* {@inheritDoc}
*/
public String getString(String path) {
return getByPath(String.class, path);
}
/**
* {@inheritDoc}
*/
public Long getLong(String path) {
return getByPath(Long.class, path);
}
/**
* {@inheritDoc}
*/
public Double getDouble(String path) {
return getByPath(Double.class, path);
}
/**
* {@inheritDoc}
*/
public Boolean getBoolean(String path) {
return getByPath(Boolean.class, path);
}
/**
* {@inheritDoc}
*/
public <T> List<T> getList(String path) {
return getByPath(List.class, path);
}
/**
* {@inheritDoc}
*/
public Map<String, Object> getMap(String path) {
return getByPath(Map.class, path);
}
//------------------------------------------------------------
//
// private methods
//
//------------------------------------------------------------
/*
private <T> T getByPath(Class<T> clazz, String stringPath) {
currentPath = "";
Object current = this.root;
JSONPath path = new JSONPath(stringPath);
while (path.hasMoreFragments()) {
JSONPathFragment fragment = path.poll();
currentPath = fragment.appendToPath(currentPath);
if (fragment.isArrayIndex()) {
current = toArray(current).get(fragment.getArrayIndex());
} else if (fragment.isArrayWildcard()) {
current = getContainerValue(current, path.poll());
} else {
current = getContainerValue(current, fragment);
}
}
return clazz.cast(current);
}
*/
///*
private <T> T getByPath(Class<T> clazz, String stringPath) {
currentPath = "";
Object current = this.root;
Path path = new Path(stringPath);
while (path.hasMoreFragments()) {
PathFragment fragment = path.poll();
currentPath = fragment.appendToPath(currentPath);
if (fragment.isArrayIndex()) {
current = toArray(current).get(fragment.getArrayIndex());
} else if (fragment.isArrayWildcard()) {
current = getContainerValue(current, path.poll());
} else {
System.out.println("FRAGMENT " + fragment.toString());
current = getContainerValue(current, fragment);
if (isArray(current) && path.hasMoreFragments() && !path.peek().isArrayIndex() && !path.peek().isArrayWildcard()) {
JSONArray array = new JSONArray();
for (Object o : toArray(current)) {
String newPath = path.toString();
System.out.println("NEW PATH " + newPath);
if (isDocument(o) || isArray(o)) {
JsonReaderImpl sub = new JsonReaderImpl(o);
Object o1 = sub.get(newPath);
//if(o instanceof Collection){
array.add(o1);
//}
//else {
// array.addAll(l)
//}
} else {
System.out.println("hhhhhhh");
array.add(o);
}
}
current = array;
break;
}
}
}
return clazz.cast(current);
}
//*/
private boolean isArray(Object obj) {
return (obj instanceof JSONArray);
}
private boolean isDocument(Object obj) {
return (obj instanceof JSONObject);
}
private JSONArray toArray(Object array) {
return (JSONArray) array;
}
private JSONObject toDocument(Object document) {
return (JSONObject) document;
}
/**
* Extracts a field from a given container. If the given container
* is an Array the field specified represents a field in the objects
* contained in the array. Values from all instances of this field
* will be returned in a List
*
* @param container a json document or array
* @param fragment the field to extract from the document alt. the documents contained in the array
* @return a single field value or a List of fields
*/
private Object getContainerValue(Object container, PathFragment fragment) {
Object result;
if (container instanceof JSONArray) {
List<Object> list = new LinkedList<Object>();
for (Object doc : toArray(container)) {
list.add(getContainerValue(doc, fragment));
}
result = list;
} else if (container instanceof JSONObject) {
JSONObject document = toDocument(container);
if (!document.containsKey(fragment.value())) {
throw new InvalidPathException("Invalid path element: " + currentPath + " <==");
}
result = document.get(fragment.value());
} else {
throw new InvalidPathException("Invalid path element: " + currentPath + " <==");
}
return result;
}
}

10
json-assert/src/main/java/com/jayway/jsonassert/impl/Path.java
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@ -55,6 +55,16 @@ class Path {
//TODO: this needs some attention but will work for now //TODO: this needs some attention but will work for now
Queue<PathFragment> processed = new LinkedList<PathFragment>(); Queue<PathFragment> processed = new LinkedList<PathFragment>();
//fix initial deep scan
if(path.startsWith("..")){
path = path.replaceFirst("\\.\\.", "\\*\\.");
}
//fix path scans
path = path.replace("..", ".*.");
String[] split = path.split("[\\.|\\[]"); String[] split = path.split("[\\.|\\[]");
for (int i = 0; i < split.length; i++) { for (int i = 0; i < split.length; i++) {

7
json-assert/src/main/java/com/jayway/jsonassert/impl/PathFragment.java
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@ -10,6 +10,9 @@ import java.util.regex.Pattern;
*/ */
class PathFragment { class PathFragment {
public static final PathFragment WILDCARD_FRAGMENT = new PathFragment("*", false);
//matches array index accessers like : [1], [23] //matches array index accessers like : [1], [23]
private static final Pattern ARRAY_POSITION_PATTER = Pattern.compile("\\[(\\d*)\\]"); private static final Pattern ARRAY_POSITION_PATTER = Pattern.compile("\\[(\\d*)\\]");
@ -102,6 +105,10 @@ class PathFragment {
return ARRAY_WILDCARD_PATTER.matcher(value).matches() || GROOVY_WILDCARD_PATTER.matcher(value).matches(); return ARRAY_WILDCARD_PATTER.matcher(value).matches() || GROOVY_WILDCARD_PATTER.matcher(value).matches();
} }
boolean isWildcard(){
return "*".endsWith(value());
}
/** /**
* returns the int index of this path fragment. If this is not an array index fragment * returns the int index of this path fragment. If this is not an array index fragment
* an UnsupportedOperationException is thrown * an UnsupportedOperationException is thrown

105
json-assert/src/test/java/com/jayway/jsonassert/JsonPathSpecTest.java
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@ -0,0 +1,105 @@
package com.jayway.jsonassert;
import com.jayway.jsonassert.impl.JsonPathImpl;
import org.junit.Test;
import java.util.List;
import java.util.Map;
import static org.hamcrest.Matchers.hasEntry;
import static org.hamcrest.Matchers.hasItems;
import static org.junit.Assert.assertEquals;
import static org.junit.Assert.assertThat;
/**
* Created by IntelliJ IDEA.
* User: kallestenflo
* Date: 2/1/11
* Time: 8:25 PM
*/
public class JsonPathSpecTest {
public final static String DOCUMENT =
"{ \"store\": {\n" +
" \"book\": [ \n" +
" { \"category\": \"reference\",\n" +
" \"author\": \"Nigel Rees\",\n" +
" \"title\": \"Sayings of the Century\",\n" +
" \"price\": 8.95\n" +
" },\n" +
" { \"category\": \"fiction\",\n" +
" \"author\": \"Evelyn Waugh\",\n" +
" \"title\": \"Sword of Honour\",\n" +
" \"price\": 12.99\n" +
" },\n" +
" { \"category\": \"fiction\",\n" +
" \"author\": \"Herman Melville\",\n" +
" \"title\": \"Moby Dick\",\n" +
" \"isbn\": \"0-553-21311-3\",\n" +
" \"price\": 8.99\n" +
" },\n" +
" { \"category\": \"fiction\",\n" +
" \"author\": \"J. R. R. Tolkien\",\n" +
" \"title\": \"The Lord of the Rings\",\n" +
" \"isbn\": \"0-395-19395-8\",\n" +
" \"price\": 22.99\n" +
" }\n" +
" ],\n" +
" \"bicycle\": {\n" +
" \"color\": \"red\",\n" +
" \"price\": 19.95\n" +
" }\n" +
" }\n" +
"}";
@Test
public void the_authors_of_all_books_in_the_store() throws Exception {
JsonPath reader = JsonPathImpl.parse(DOCUMENT);
assertThat(reader.<String>getList("store.book[*].author"), hasItems("Nigel Rees", "Evelyn Waugh", "Herman Melville", "J. R. R. Tolkien"));
}
@Test
public void all_authors() throws Exception {
JsonPath reader = JsonPathImpl.parse(DOCUMENT);
assertThat(reader.<String>getList("..author"), hasItems("Nigel Rees", "Evelyn Waugh", "Herman Melville", "J. R. R. Tolkien"));
}
@Test
public void all_items_in_store() throws Exception {
JsonPath reader = JsonPathImpl.parse(DOCUMENT);
List<Object> itemsInStore = reader.<Object>getList("store.*");
assertEquals(JsonPathImpl.jsonPath(itemsInStore, "[0][0].author"), "Nigel Rees");
System.out.println(itemsInStore.toString());
}
@Test
public void the_price_of_everything_in_the_store() throws Exception {
JsonPath reader = JsonPathImpl.parse(DOCUMENT);
assertThat(reader.<Double>getList("store..price"), hasItems(8.95D, 12.99D, 8.99D, 19.95D));
}
@Test
public void the_third_book() throws Exception {
JsonPath reader = JsonPathImpl.parse(DOCUMENT);
Map<String, String> book = reader.getReader("..book[2]").get("[0]");
assertThat(book, hasEntry("author", "Herman Melville"));
book = reader.getMap("store.book[2]");
assertThat(book, hasEntry("author", "Herman Melville"));
}
}

300
json-assert/src/test/java/com/jayway/jsonassert/JsonReaderTest.java
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@ -1,300 +0,0 @@
package com.jayway.jsonassert;
import com.jayway.jsonassert.impl.JsonReaderImpl;
import org.hamcrest.Matchers;
import org.junit.Test;
import java.io.InputStreamReader;
import java.text.ParseException;
import java.util.List;
import java.util.Map;
import static org.junit.Assert.*;
/**
* User: kalle stenflo
* Date: 1/20/11
* Time: 9:31 AM
*/
public class JsonReaderTest {
private static String TEST_DOCUMENT = "{ \"nullField\" : null, \"stringField\" : \"string-field\" , \"numberField\" : 1234 , \"doubleField\" : 12.34 , \"booleanField\" : true , \"subDocument\" : {\"subField\" : \"sub-field\"} , \"stringList\" : [\"ONE\", \"TWO\"], \"objectList\" : [{\"subField\" : \"sub-field-0\", \"subDoc\": {\"subField\": \"A\"}}, {\"subField\" : \"sub-field-1\", \"subDoc\": {\"subField\": \"B\"}}], \"listList\" : [[\"0.0\", \"0.1\"], [\"1.0\", \"1.1\"]], }";
private static String TEST_DOCUMENT_ARRAY = "{ \"listList\" : [[\"0.0\", \"0.1\"], [\"1.0\", \"1.1\"]], }";
private static String TEST_DEEP_PATH_DOCUMENT = "{ \"a\" : { \"b\" : { \"c\" : { \"say\" : \"hello\" } } }}";
private static String TEST_ARRAY = "[{\"name\" : \"name0\"}, {\"name\" : \"name1\"}]";
private static String TEST_DEEP_PATH_DOCUMENT_ARRAY = "{ \"arr0\" : [{ \"arr0_0\" : [{ \"arr0_0_0\" : [{\"val\": \"0A\"}, {\"val\": \"1A\"}] }, { \"arr0_0\" : [{ \"arr0_0_0\" : [{\"val\": \"1A\"}, {\"val\": \"1B\"}] }] } ] }";
@Test(expected = ParseException.class)
public void invalid_json_not_accepted() throws Exception {
JsonReaderImpl.parse("not json");
}
@Test
public void reader_can_be_created_with_input_stream() throws Exception {
JsonPath reader = JsonAssert.parse(getInputStreamReader("json-test-doc.json"), true);
assertEquals("donut", reader.getString("type"));
assertEquals("donut", reader.get("type"));
assertThat(reader.<String>getList("toppings"), Matchers.hasItems("Glazed", "Sugar"));
assertThat(reader.<List<String>>get("toppings"), Matchers.hasItems("Glazed", "Sugar"));
}
@Test
public void a_string_field_can_be_accessed() throws Exception {
JsonPath reader = JsonAssert.parse(TEST_DOCUMENT);
assertEquals("string-field", reader.getString("stringField"));
assertEquals("string-field", reader.get("stringField"));
}
@Test
public void is_null_returns_true_for_null_fields() throws Exception {
JsonPath reader = JsonAssert.parse(TEST_DOCUMENT);
assertTrue(reader.isNull("nullField"));
}
@Test
public void is_null_returns_false_for_not_null_fields() throws Exception {
JsonPath reader = JsonAssert.parse(TEST_DOCUMENT);
assertFalse(reader.isNull("stringField"));
}
@Test
public void a_long_field_can_be_accessed() throws Exception {
JsonPath reader = JsonAssert.parse(TEST_DOCUMENT);
assertTrue(1234L == reader.getLong("numberField"));
assertEquals(1234L, reader.get("numberField"));
}
@Test
public void a_double_field_can_be_accessed() throws Exception {
JsonPath reader = JsonAssert.parse(TEST_DOCUMENT);
assertEquals(12.34D, reader.getDouble("doubleField"), 0.001);
assertEquals(12.34D, reader.<Double>get("doubleField"), 0.001);
}
@Test
public void a_boolean_field_can_be_accessed() throws Exception {
JsonPath reader = JsonAssert.parse(TEST_DOCUMENT);
assertEquals(true, reader.getBoolean("booleanField"));
assertEquals(true, reader.get("booleanField"));
}
@Test
public void a_path_can_be_checked_for_existence() throws Exception {
JsonPath reader = JsonAssert.parse(TEST_DEEP_PATH_DOCUMENT);
assertTrue(reader.hasJsonPath("a.b.c.say"));
}
@Test
public void a_path_can_be_checked_for_non_existence() throws Exception {
JsonPath reader = JsonAssert.parse(TEST_DEEP_PATH_DOCUMENT);
assertFalse(reader.hasJsonPath("a.b.c.FOO"));
}
@Test
public void a_string_field_can_be_accessed_in_a_nested_document() throws Exception {
JsonPath reader = JsonAssert.parse(TEST_DOCUMENT);
assertEquals("sub-field", reader.getString("subDocument.subField"));
assertEquals("sub-field", reader.get("subDocument.subField"));
}
@Test
public void a_list_can_be_accessed_in_a_document() throws Exception {
JsonPath reader = JsonAssert.parse(TEST_DOCUMENT);
assertEquals(2, reader.<String>getList("stringList").size());
assertEquals(2, reader.<List<String>>get("stringList").size());
}
@Test
public void a_list_can_be_accessed_by_array_index() throws Exception {
JsonPath reader = JsonAssert.parse(TEST_DOCUMENT);
assertEquals("ONE", reader.getString("stringList[0]"));
assertEquals("TWO", reader.getString("stringList[1]"));
assertEquals("ONE", reader.get("stringList[0]"));
assertEquals("TWO", reader.get("stringList[1]"));
}
@Test
public void a_list_can_be_accessed_by_groovy_index() throws Exception {
JsonPath reader = JsonAssert.parse(TEST_DOCUMENT);
assertEquals("ONE", reader.getString("stringList.get(0)"));
assertEquals("TWO", reader.getString("stringList.get(1)"));
assertEquals("ONE", reader.get("stringList.get(0)"));
assertEquals("TWO", reader.get("stringList.get(1)"));
}
@Test
public void a_document_contained_in_a_list_can_be_accessed_by_array_index() throws Exception {
JsonPath reader = JsonAssert.parse(TEST_DOCUMENT);
assertEquals("sub-field-0", reader.getString("objectList[0].subField"));
assertEquals("sub-field-0", reader.get("objectList[0].subField"));
}
@Test
public void a_document_contained_in_a_list_can_be_accessed_by_groovy_index() throws Exception {
JsonPath reader = JsonAssert.parse(TEST_DOCUMENT);
assertEquals("sub-field-0", reader.getString("objectList.get(0).subField"));
assertEquals("sub-field-0", reader.get("objectList.get(0).subField"));
}
@Test
public void an_array_in_an_array_can_be_accessed_by_array_index() throws Exception {
JsonPath reader = JsonAssert.parse(TEST_DOCUMENT_ARRAY);
assertEquals("0.0", reader.getString("listList[0][0]"));
assertEquals("0.1", reader.getString("listList[0][1]"));
assertEquals("1.0", reader.getString("listList[1][0]"));
assertEquals("1.1", reader.getString("listList[1][1]"));
assertEquals("0.0", reader.get("listList[0][0]"));
assertEquals("0.1", reader.get("listList[0][1]"));
assertEquals("1.0", reader.get("listList[1][0]"));
assertEquals("1.1", reader.get("listList[1][1]"));
}
@Test
public void an_array_in_an_array_can_be_accessed_by_groovy_index() throws Exception {
JsonPath reader = JsonAssert.parse(TEST_DOCUMENT_ARRAY);
assertEquals("0.0", reader.getString("listList.get(0).get(0)"));
assertEquals("0.1", reader.getString("listList.get(0).get(1)"));
assertEquals("1.0", reader.getString("listList.get(1).get(0)"));
assertEquals("1.1", reader.getString("listList.get(1).get(1)"));
assertEquals("0.0", reader.get("listList.get(0).get(0)"));
assertEquals("0.1", reader.get("listList.get(0).get(1)"));
assertEquals("1.0", reader.get("listList.get(1).get(0)"));
assertEquals("1.1", reader.get("listList.get(1).get(1)"));
}
@Test
public void an_array_with_documents_can_be_accessed_by_index() throws Exception {
JsonPath reader = JsonAssert.parse(TEST_ARRAY);
assertEquals("name0", reader.getString("[0].name"));
assertEquals("name1", reader.getString("[1].name"));
assertEquals("name0", reader.get("[0].name"));
assertEquals("name1", reader.get("[1].name"));
}
@Test
public void a_nested_document_can_be_accessed_as_a_map() throws Exception {
JsonPath reader = JsonAssert.parse(TEST_DOCUMENT);
assertEquals("sub-field", reader.getMap("subDocument").get("subField"));
assertEquals("sub-field", reader.<Map>get("subDocument").get("subField"));
}
@Test
public void a_deep_document_path_can_be_read() throws Exception {
JsonPath reader = JsonAssert.parse(TEST_DEEP_PATH_DOCUMENT);
assertEquals("hello", reader.getString("a.b.c.say"));
assertEquals("hello", reader.get("a.b.c.say"));
}
@Test(expected = InvalidPathException.class)
public void exception_is_thrown_when_field_is_not_found() throws Exception {
JsonPath reader = JsonAssert.parse(TEST_DOCUMENT);
reader.getString("invalidProperty");
}
@Test(expected = InvalidPathException.class)
public void exception_is_thrown_when_field_is_not_found_with_get() throws Exception {
JsonPath reader = JsonAssert.parse(TEST_DOCUMENT);
reader.get("invalidProperty");
}
@Test
public void array_wildcard_property_extract() throws Exception {
JsonPath reader = JsonAssert.parse(TEST_DOCUMENT);
assertEquals(2, reader.<String>getList("objectList[*].subField").size());
assertEquals(2, reader.<List<String>>get("objectList[*].subField").size());
}
@Test
public void array_wildcard_property_extract_new() throws Exception {
JsonPath reader = JsonAssert.parse(TEST_DOCUMENT);
assertEquals("A", reader.<String>getList("objectList.subDoc.subField").get(0));
assertEquals("B", reader.<String>getList("objectList.subDoc.subField").get(1));
assertEquals("A", reader.<List<String>>get("objectList.subDoc.subField").get(0));
assertEquals("B", reader.<List<String>>get("objectList.subDoc.subField").get(1));
}
@Test
public void list_to_string_returns_json() throws Exception {
JsonPath reader = JsonAssert.parse(TEST_DOCUMENT);
assertEquals("[\"ONE\",\"TWO\"]", reader.getList("stringList").toString());
}
@Test
public void get_sub_reader_for_document() throws Exception {
JsonPath reader = JsonAssert.parse(TEST_DOCUMENT);
assertEquals("sub-field", reader.getReader("subDocument").getString("subField"));
}
@Test
public void get_sub_reader_for_list() throws Exception {
JsonPath reader = JsonAssert.parse(TEST_DOCUMENT);
assertEquals("ONE", reader.getReader("stringList").get("[0]"));
}
//----------------------------------------------------------
//
// helpers
//
//----------------------------------------------------------
private InputStreamReader getInputStreamReader(String resource) {
return new InputStreamReader(ClassLoader.getSystemResourceAsStream(resource));
}
}
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