/**
* 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.hive.hcatalog.api.repl;
import org.slf4j.Logger;
import org.slf4j.LoggerFactory;
import java.io.IOException;
import java.util.Arrays;
import java.util.Iterator;
import java.util.Map;
import static junit.framework.Assert.assertEquals;
import static org.junit.Assert.assertNull;
/**
* Class which provides several useful methods to test commands, but is itself not a test.
*/
public class CommandTestUtils {
private static Logger LOG = LoggerFactory.getLogger(CommandTestUtils.class.getName());
public static void compareCommands(Command expected, Command actual, boolean ignoreSortOrder) {
// The reason we use compare-command, rather than simply getting the serialized output and comparing
// for partition-based commands is that the partition specification order can be different in different
// serializations, but still be effectively the same. (a="42",b="abc") should be the same as (b="abc",a="42")
assertEquals(expected.getClass(),actual.getClass());
assertEquals(expected.getEventId(),actual.getEventId());
assertEquals(expected.isUndoable(),actual.isUndoable());
assertEquals(expected.isRetriable(),actual.isRetriable());
assertEquals(expected.get().size(),actual.get().size());
Iterator<String> actualIter = actual.get().iterator();
for (String s : expected.get()){
if (ignoreSortOrder){
// compare sorted strings, rather than comparing exact strings.
assertSortedEquals(s, actualIter.next());
} else {
assertEquals(s,actualIter.next());
}
}
if (expected.isUndoable()){
Iterator<String> actualUndoIter = actual.getUndo().iterator();
for (String s: expected.getUndo()){
if (ignoreSortOrder){
assertSortedEquals(s,actualUndoIter.next());
} else {
assertEquals(s,actualIter.next());
}
}
}
}
private static void assertSortedEquals(String expected, String actual) {
char[] expectedChars = expected.toCharArray();
Arrays.sort(expectedChars);
char[] actualChars = actual.toCharArray();
Arrays.sort(actualChars);
assertEquals(String.valueOf(expectedChars), String.valueOf(actualChars));
}
public static void testCommandSerialization(Command cmd) {
String serializedCmd = null;
try {
serializedCmd = ReplicationUtils.serializeCommand(cmd);
} catch (IOException e) {
LOG.error("Serialization error",e);
assertNull(e); // error out.
}
Command cmd2 = null;
try {
cmd2 = ReplicationUtils.deserializeCommand(serializedCmd);
} catch (IOException e) {
LOG.error("Serialization error",e);
assertNull(e); // error out.
}
assertEquals(cmd.getClass(),cmd2.getClass());
assertEquals(cmd.getEventId(), cmd2.getEventId());
assertEquals(cmd.get(), cmd2.get());
assertEquals(cmd.isUndoable(),cmd2.isUndoable());
if (cmd.isUndoable()){
assertEquals(cmd.getUndo(),cmd2.getUndo());
}
assertEquals(cmd.isRetriable(),cmd2.isRetriable());
}
}