TestIFieldValue.java Source code

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Here is the source code for TestIFieldValue.java

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/**
* Tencent is pleased to support the open source community by making TDW available.
* Copyright (C) 2014 THL A29 Limited, a Tencent company. 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.
*/

import java.io.IOException;

import org.apache.hadoop.io.DataInputBuffer;
import org.apache.hadoop.io.DataOutputBuffer;

import junit.framework.TestCase;
import Comm.ConstVar;
import Comm.Util;
import IndexStorage.IFieldType;
import IndexStorage.IFieldValue;

public class TestIFieldValue extends TestCase {
    public void testIFieldValue() {
        IFieldType ift = new IFieldType(ConstVar.FieldType_Byte);
        IFieldValue ifv = new IFieldValue(ift);
        assertEquals(ConstVar.FieldType_Byte, ifv.type());

        ifv = new IFieldValue((byte) 3);
        assertEquals(3, ifv.value()[0]);

        ifv = new IFieldValue((short) 3);
        assertEquals(3, Util.bytes2short(ifv.value(), 0, ConstVar.Sizeof_Short));

        ifv = new IFieldValue((int) 3);
        assertEquals(3, Util.bytes2int(ifv.value(), 0, ConstVar.Sizeof_Int));

        ifv = new IFieldValue((long) 3);
        assertEquals(3, Util.bytes2long(ifv.value(), 0, ConstVar.Sizeof_Long));

        ifv = new IFieldValue((float) 3.14159);
        assertTrue(Math.abs(3.14159 - Util.bytes2float(ifv.value(), 0)) / 3.14159 < Math.pow(10, -6));

        ifv = new IFieldValue((double) 3.14159);
        assertTrue(Math.abs(3.14159 - Util.bytes2double(ifv.value(), 0)) / 3.14159 < Math.pow(10, -108));

        ifv = new IFieldValue("aaaa");
        assertTrue("aaaa".equals(new String(ifv.value())));

    }

    public void testWritable() throws IOException {

        IFieldValue ifv = new IFieldValue(100);

        DataOutputBuffer dob = new DataOutputBuffer();
        ifv.write(dob);
        byte[] data = dob.getData();
        DataInputBuffer dib = new DataInputBuffer();
        dib.reset(data, data.length);

        IFieldValue ifv2 = new IFieldValue();
        ifv2.readFields(dib);

        assertEquals(ifv.idx(), ifv2.idx());
        assertEquals(ifv.len(), ifv2.len());
        assertEquals(ifv.type(), ifv2.type());
        assertTrue(ifv.compareTo(ifv2) == 0);

    }

    public void testPersitable() throws IOException {
        IFieldValue ifv = new IFieldValue(100);

        DataOutputBuffer dob = new DataOutputBuffer();
        ifv.persistent(dob);

        byte[] data = dob.getData();

        DataInputBuffer dib = new DataInputBuffer();
        dib.reset(data, data.length);

        IFieldValue ifv2 = new IFieldValue(ifv.fieldType());
        ifv2.unpersistent(dib);

        assertEquals(ifv.idx(), ifv2.idx());
        assertEquals(ifv.len(), ifv2.len());
        assertEquals(ifv.type(), ifv2.type());
        assertTrue(ifv.compareTo(ifv2) == 0);

    }

}