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/*-
* ============LICENSE_START=======================================================
* ONAP
* ================================================================================
* Copyright (C) 2019 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.onap.policy.common.utils.coder;
import static org.assertj.core.api.Assertions.assertThatThrownBy;
import static org.junit.Assert.assertEquals;
import static org.junit.Assert.assertNotNull;
import static org.junit.Assert.assertNull;
import static org.junit.Assert.assertTrue;
import java.io.File;
import java.io.FileReader;
import java.io.IOException;
import java.io.Writer;
import java.nio.charset.StandardCharsets;
import java.nio.file.Files;
import java.util.List;
import java.util.Map;
import lombok.EqualsAndHashCode;
import org.junit.Before;
import org.junit.Test;
import org.yaml.snakeyaml.error.YAMLException;
public class YamlJsonTranslatorTest {
private static final File YAML_FILE =
new File("src/test/resources/org/onap/policy/common/utils/coder/YamlJsonTranslator.yaml");
private Container cont;
private YamlJsonTranslator translator;
/**
* Creates {@link #translator} and uses it to load {@link #cont}.
*
* @throws IOException if an error occurs
*/
@Before
public void setUp() throws IOException {
translator = new YamlJsonTranslator();
try (FileReader rdr = new FileReader(YAML_FILE)) {
cont = translator.fromYaml(rdr, Container.class);
}
}
@Test
public void testToYamlObject() {
String yaml = translator.toYaml(cont);
Container cont2 = translator.fromYaml(yaml, Container.class);
assertEquals(cont, cont2);
}
@Test
public void testToYamlWriterObject() throws IOException {
IOException ex = new IOException("expected exception");
// writer that throws an exception when the write() method is invoked
Writer wtr = new Writer() {
@Override
public void write(char[] cbuf, int off, int len) throws IOException {
throw ex;
}
@Override
public void flush() throws IOException {
// do nothing
}
@Override
public void close() throws IOException {
// do nothing
}
};
assertThatThrownBy(() -> translator.toYaml(wtr, cont)).isInstanceOf(YAMLException.class);
wtr.close();
}
@Test
public void testFromYamlStringClassOfT() throws IOException {
String yaml = new String(Files.readAllBytes(YAML_FILE.toPath()), StandardCharsets.UTF_8);
Container cont2 = translator.fromYaml(yaml, Container.class);
assertEquals(cont, cont2);
}
@Test
public void testFromYamlReaderClassOfT() {
verify(cont);
}
/**
* Verifies that the container has contents matching the yaml file.
*
* @param container container whose contents are to be verified
*/
public static void verify(Container container) {
assertNotNull(container.item);
assertTrue(container.item.boolVal);
assertEquals(1000L, container.item.longVal);
assertEquals(1010.1f, container.item.floatVal, 0.00001);
assertEquals(4, container.list.size());
assertNull(container.list.get(1));
assertEquals(20, container.list.get(0).intVal);
assertEquals("string 30", container.list.get(0).stringVal);
assertNull(container.list.get(0).nullVal);
assertEquals(40.0, container.list.get(2).doubleVal, 0.000001);
assertNull(container.list.get(2).nullVal);
assertNotNull(container.list.get(2).another);
assertEquals(50, container.list.get(2).another.intVal);
assertTrue(container.list.get(3).boolVal);
assertNotNull(container.map);
assertEquals(3, container.map.size());
assertNotNull(container.map.get("itemA"));
assertEquals("stringA", container.map.get("itemA").stringVal);
assertNotNull(container.map.get("itemB"));
assertEquals("stringB", container.map.get("itemB").stringVal);
double dbl = 123456789012345678901234567890.0;
assertEquals(dbl, container.map.get("itemB").doubleVal, 1000.0);
assertNotNull(container.map.get("itemC"));
assertTrue(container.map.get("itemC").boolVal);
}
@EqualsAndHashCode
public static class Container {
protected Item item;
protected List<Item> list;
protected Map<String, Item> map;
}
@EqualsAndHashCode
public static class Item {
protected boolean boolVal;
protected int intVal;
protected long longVal;
protected double doubleVal;
protected float floatVal;
protected String stringVal;
protected Object nullVal;
protected Item another;
}
}
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