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* 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.thrift;
import java.nio.ByteBuffer;
import java.util.Arrays;
import java.util.HashMap;
import java.util.HashSet;
import java.util.List;
import java.util.Map;
import java.util.Set;
import junit.framework.TestCase;
public class TestTBaseHelper extends TestCase {
public void testByteArrayComparison() {
assertTrue(TBaseHelper.compareTo(new byte[]{'a','b'}, new byte[]{'a','c'}) < 0);
}
public void testSets() {
Set<String> a = new HashSet<String>();
Set<String> b = new HashSet<String>();
assertTrue(TBaseHelper.compareTo(a, b) == 0);
a.add("test");
assertTrue(TBaseHelper.compareTo(a, b) > 0);
b.add("test");
assertTrue(TBaseHelper.compareTo(a, b) == 0);
b.add("aardvark");
assertTrue(TBaseHelper.compareTo(a, b) < 0);
a.add("test2");
assertTrue(TBaseHelper.compareTo(a, b) > 0);
}
public void testNestedStructures() {
Set<List<String>> a = new HashSet<List<String>>();
Set<List<String>> b = new HashSet<List<String>>();
a.add(Arrays.asList(new String[] {"a","b"}));
b.add(Arrays.asList(new String[] {"a","b", "c"}));
a.add(Arrays.asList(new String[] {"a","b"}));
b.add(Arrays.asList(new String[] {"a","b", "c"}));
assertTrue(TBaseHelper.compareTo(a, b) < 0);
}
public void testMapsInSets() {
Set<Map<String, Long>> a = new HashSet<Map<String, Long>>();
Set<Map<String, Long>> b = new HashSet<Map<String, Long>>();
assertTrue(TBaseHelper.compareTo(a, b) == 0);
Map<String, Long> innerA = new HashMap<String, Long>();
Map<String, Long> innerB = new HashMap<String, Long>();
a.add(innerA);
b.add(innerB);
innerA.put("a", 1l);
innerB.put("a", 2l);
assertTrue(TBaseHelper.compareTo(a, b) < 0);
}
public void testByteArraysInMaps() {
Map<byte[], Long> a = new HashMap<byte[], Long>();
Map<byte[], Long> b = new HashMap<byte[], Long>();
assertTrue(TBaseHelper.compareTo(a, b) == 0);
a.put(new byte[]{'a','b'}, 1000L);
b.put(new byte[]{'a','b'}, 1000L);
a.put(new byte[]{'a','b', 'd'}, 1000L);
b.put(new byte[]{'a','b', 'a'}, 1000L);
assertTrue(TBaseHelper.compareTo(a, b) > 0);
}
public void testMapsWithNulls() {
Map<String, String> a = new HashMap<String, String>();
Map<String, String> b = new HashMap<String, String>();
a.put("a", null);
a.put("b", null);
b.put("a", null);
b.put("b", null);
assertTrue(TBaseHelper.compareTo(a, b) == 0);
}
public void testMapKeyComparison() {
Map<String, String> a = new HashMap<String, String>();
Map<String, String> b = new HashMap<String, String>();
a.put("a", "a");
b.put("b", "a");
assertTrue(TBaseHelper.compareTo(a, b) < 0);
}
public void testMapValueComparison() {
Map<String, String> a = new HashMap<String, String>();
Map<String, String> b = new HashMap<String, String>();
a.put("a", "b");
b.put("a", "a");
assertTrue(TBaseHelper.compareTo(a, b) > 0);
}
public void testByteArraysInSets() {
Set<byte[]> a = new HashSet<byte[]>();
Set<byte[]> b = new HashSet<byte[]>();
if (TBaseHelper.compareTo(a, b) != 0)
throw new RuntimeException("Set compare failed:" + a + " vs. " + b);
a.add(new byte[]{'a','b'});
b.add(new byte[]{'a','b'});
a.add(new byte[]{'a','b', 'd'});
b.add(new byte[]{'a','b', 'a'});
assertTrue(TBaseHelper.compareTo(a, b) > 0);
}
public void testByteBufferToByteArray() throws Exception {
byte[] b1 = {10,9,8,7,6,5,4,3,2,1,0};
byte[] b2 = TBaseHelper.byteBufferToByteArray(ByteBuffer.wrap(b1));
assertEquals("b1 and b2 should be the exact same array (identity) due to fast path", b1, b2);
byte[] b3 = TBaseHelper.byteBufferToByteArray(ByteBuffer.wrap(b1, 1, 3));
assertEquals(3, b3.length);
assertEquals(ByteBuffer.wrap(b1, 1, 3), ByteBuffer.wrap(b3));
}
public void testRightSize() throws Exception {
assertNull(TBaseHelper.rightSize(null));
}
public void testByteBufferToString() {
byte[] array = new byte[]{1, 2, 3};
ByteBuffer bb = ByteBuffer.wrap(array, 1, 2);
StringBuilder sb = new StringBuilder();
TBaseHelper.toString(bb, sb);
assertEquals("02 03", sb.toString());
bb = ByteBuffer.wrap(array, 0, array.length);
bb.position(1);
bb = bb.slice();
assertEquals(1, bb.arrayOffset());
assertEquals(0, bb.position());
assertEquals(2, bb.limit());
sb = new StringBuilder();
TBaseHelper.toString(bb, sb);
assertEquals("02 03", sb.toString());
}
public void testCopyBinaryWithByteBuffer() throws Exception {
byte[] bytes = new byte[]{0, 1, 2, 3, 4, 5};
ByteBuffer b = ByteBuffer.wrap(bytes);
ByteBuffer bCopy = TBaseHelper.copyBinary(b);
assertEquals(b, bCopy);
assertEquals(0, b.position());
b = ByteBuffer.allocateDirect(6);
b.put(bytes);
b.position(0);
bCopy = TBaseHelper.copyBinary(b);
assertEquals(6, b.remaining());
assertEquals(0, b.position());
assertEquals(b, bCopy);
b.mark();
b.get();
bCopy = TBaseHelper.copyBinary(b);
assertEquals(ByteBuffer.wrap(bytes, 1, 5), bCopy);
assertEquals(1, b.position());
b.reset();
assertEquals(0, b.position());
assertNull(TBaseHelper.copyBinary((ByteBuffer)null));
}
public void testCopyBinaryWithByteArray() throws Exception {
byte[] bytes = new byte[]{0, 1, 2, 3, 4, 5};
byte[] copy = TBaseHelper.copyBinary(bytes);
assertEquals(ByteBuffer.wrap(bytes), ByteBuffer.wrap(copy));
assertNotSame(bytes, copy);
assertNull(TBaseHelper.copyBinary((byte[])null));
}
}