/**
* Copyright (c) 2008-2011, http://www.snakeyaml.org
*
* 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.
*/
package org.pyyaml;
import java.io.File;
import java.io.FileInputStream;
import java.io.IOException;
import java.io.InputStream;
import java.io.Reader;
import java.util.ArrayList;
import java.util.Iterator;
import java.util.List;
import org.yaml.snakeyaml.Yaml;
import org.yaml.snakeyaml.composer.Composer;
import org.yaml.snakeyaml.constructor.AbstractConstruct;
import org.yaml.snakeyaml.constructor.Constructor;
import org.yaml.snakeyaml.events.AliasEvent;
import org.yaml.snakeyaml.events.CollectionStartEvent;
import org.yaml.snakeyaml.events.Event;
import org.yaml.snakeyaml.events.ScalarEvent;
import org.yaml.snakeyaml.nodes.MappingNode;
import org.yaml.snakeyaml.nodes.Node;
import org.yaml.snakeyaml.nodes.NodeTuple;
import org.yaml.snakeyaml.nodes.ScalarNode;
import org.yaml.snakeyaml.nodes.SequenceNode;
import org.yaml.snakeyaml.parser.ParserImpl;
import org.yaml.snakeyaml.reader.StreamReader;
import org.yaml.snakeyaml.reader.UnicodeReader;
import org.yaml.snakeyaml.resolver.Resolver;
/**
* @see imported from PyYAML
*/
public class PyStructureTest extends PyImportTest {
private void compareEvents(List<Event> events1, List<Event> events2, boolean full) {
assertEquals(events1.size(), events2.size());
Iterator<Event> iter1 = events1.iterator();
Iterator<Event> iter2 = events2.iterator();
while (iter1.hasNext()) {
Event event1 = iter1.next();
Event event2 = iter2.next();
assertEquals(event1.getClass(), event2.getClass());
if (event1 instanceof AliasEvent && full) {
assertEquals(((AliasEvent) event1).getAnchor(), ((AliasEvent) event2).getAnchor());
}
if (event1 instanceof CollectionStartEvent) {
String tag1 = ((CollectionStartEvent) event1).getTag();
String tag2 = ((CollectionStartEvent) event1).getTag();
if (tag1 != null && !"!".equals(tag1) && tag2 != null && !"!".equals(tag1)) {
assertEquals(tag1, tag2);
}
}
if (event1 instanceof ScalarEvent) {
ScalarEvent scalar1 = (ScalarEvent) event1;
ScalarEvent scalar2 = (ScalarEvent) event2;
if (scalar1.getImplicit().bothFalse() && scalar2.getImplicit().bothFalse()) {
assertEquals(scalar1.getTag(), scalar2.getTag());
}
assertEquals(scalar1.getValue(), scalar2.getValue());
}
}
}
public void testParser() throws IOException {
File[] files = getStreamsByExtension(".data", true);
assertTrue("No test files found.", files.length > 0);
for (File file : files) {
if (!file.getName().contains("scan-line-b")) {
continue;
}
try {
List<Event> events1 = parse(new FileInputStream(file));
assertFalse(events1.isEmpty());
int index = file.getAbsolutePath().lastIndexOf('.');
String canonicalName = file.getAbsolutePath().substring(0, index) + ".canonical";
File canonical = new File(canonicalName);
List<Event> events2 = canonicalParse(new FileInputStream(canonical));
assertFalse(events2.isEmpty());
compareEvents(events1, events2, false);
} catch (Exception e) {
System.out.println("Failed File: " + file);
// fail("Failed File: " + file + "; " + e.getMessage());
throw new RuntimeException(e);
}
}
}
public void testParserOnCanonical() throws IOException {
File[] canonicalFiles = getStreamsByExtension(".canonical", false);
assertTrue("No test files found.", canonicalFiles.length > 0);
for (File file : canonicalFiles) {
try {
List<Event> events1 = parse(new FileInputStream(file));
assertFalse(events1.isEmpty());
List<Event> events2 = canonicalParse(new FileInputStream(file));
assertFalse(events2.isEmpty());
compareEvents(events1, events2, true);
} catch (Exception e) {
System.out.println("Failed File: " + file);
// fail("Failed File: " + file + "; " + e.getMessage());
throw new RuntimeException(e);
}
}
}
private void compareNodes(Node node1, Node node2) {
assertEquals(node1.getClass(), node2.getClass());
if (node1 instanceof ScalarNode) {
ScalarNode scalar1 = (ScalarNode) node1;
ScalarNode scalar2 = (ScalarNode) node2;
assertEquals(scalar1.getTag(), scalar2.getTag());
assertEquals(scalar1.getValue(), scalar2.getValue());
} else {
if (node1 instanceof SequenceNode) {
SequenceNode seq1 = (SequenceNode) node1;
SequenceNode seq2 = (SequenceNode) node2;
assertEquals(seq1.getTag(), seq2.getTag());
assertEquals(seq1.getValue().size(), seq2.getValue().size());
Iterator<Node> iter2 = seq2.getValue().iterator();
for (Node child1 : seq1.getValue()) {
Node child2 = iter2.next();
compareNodes(child1, child2);
}
} else {
MappingNode seq1 = (MappingNode) node1;
MappingNode seq2 = (MappingNode) node2;
assertEquals(seq1.getTag(), seq2.getTag());
assertEquals(seq1.getValue().size(), seq2.getValue().size());
Iterator<NodeTuple> iter2 = seq2.getValue().iterator();
for (NodeTuple child1 : seq1.getValue()) {
NodeTuple child2 = iter2.next();
compareNodes(child1.getKeyNode(), child2.getKeyNode());
compareNodes(child1.getValueNode(), child2.getValueNode());
}
}
}
}
public void testComposer() throws IOException {
File[] files = getStreamsByExtension(".data", true);
assertTrue("No test files found.", files.length > 0);
for (File file : files) {
try {
List<Node> events1 = compose_all(new FileInputStream(file));
int index = file.getAbsolutePath().lastIndexOf('.');
String canonicalName = file.getAbsolutePath().substring(0, index) + ".canonical";
File canonical = new File(canonicalName);
List<Node> events2 = canonical_compose_all(new FileInputStream(canonical));
assertEquals(events1.size(), events2.size());
Iterator<Node> iter1 = events1.iterator();
Iterator<Node> iter2 = events2.iterator();
while (iter1.hasNext()) {
compareNodes(iter1.next(), iter2.next());
}
} catch (Exception e) {
System.out.println("Failed File: " + file);
// fail("Failed File: " + file + "; " + e.getMessage());
throw new RuntimeException(e);
}
}
}
private List<Node> compose_all(InputStream file) {
Composer composer = new Composer(new ParserImpl(new StreamReader(new UnicodeReader(file))),
new Resolver());
List<Node> documents = new ArrayList<Node>();
while (composer.checkNode()) {
documents.add(composer.getNode());
}
return documents;
}
private List<Node> canonical_compose_all(InputStream file) {
StreamReader reader = new StreamReader(new UnicodeReader(file));
StringBuilder buffer = new StringBuilder();
while (reader.peek() != '\0') {
buffer.append(reader.peek());
reader.forward();
}
CanonicalParser parser = new CanonicalParser(buffer.toString());
Composer composer = new Composer(parser, new Resolver());
List<Node> documents = new ArrayList<Node>();
while (composer.checkNode()) {
documents.add(composer.getNode());
}
return documents;
}
class CanonicalLoader extends Yaml {
public CanonicalLoader() {
super(new MyConstructor());
}
@Override
public Iterable<Object> loadAll(Reader yaml) {
StreamReader reader = new StreamReader(yaml);
StringBuilder buffer = new StringBuilder();
while (reader.peek() != '\0') {
buffer.append(reader.peek());
reader.forward();
}
CanonicalParser parser = new CanonicalParser(buffer.toString());
Composer composer = new Composer(parser, resolver);
this.constructor.setComposer(composer);
Iterator<Object> result = new Iterator<Object>() {
public boolean hasNext() {
return constructor.checkData();
}
public Object next() {
return constructor.getData();
}
public void remove() {
throw new UnsupportedOperationException();
}
};
return new YamlIterable(result);
}
private class YamlIterable implements Iterable<Object> {
private Iterator<Object> iterator;
public YamlIterable(Iterator<Object> iterator) {
this.iterator = iterator;
}
public Iterator<Object> iterator() {
return iterator;
}
}
}
private class MyConstructor extends Constructor {
public MyConstructor() {
this.yamlConstructors.put(null, new ConstructUndefined());
}
private class ConstructUndefined extends AbstractConstruct {
public Object construct(Node node) {
return constructScalar((ScalarNode) node);
}
}
}
public void testConstructor() throws IOException {
File[] files = getStreamsByExtension(".data", true);
assertTrue("No test files found.", files.length > 0);
Yaml myYaml = new Yaml(new MyConstructor());
Yaml canonicalYaml = new CanonicalLoader();
for (File file : files) {
try {
Iterable<Object> documents1 = myYaml.loadAll(new FileInputStream(file));
int index = file.getAbsolutePath().lastIndexOf('.');
String canonicalName = file.getAbsolutePath().substring(0, index) + ".canonical";
File canonical = new File(canonicalName);
Iterable<Object> documents2 = canonicalYaml.loadAll(new FileInputStream(canonical));
Iterator<Object> iter2 = documents2.iterator();
for (Object object1 : documents1) {
Object object2 = iter2.next();
if (object2 != null) {
assertFalse(System.identityHashCode(object1) == System
.identityHashCode(object2));
}
assertEquals("" + object1, object1, object2);
}
} catch (Exception e) {
System.out.println("Failed File: " + file);
// fail("Failed File: " + file + "; " + e.getMessage());
throw new RuntimeException(e);
}
}
}
}