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* to you under the Apache License, Version 2.0 (the
* "License"); you may not use this file except in compliance
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*
* http://www.apache.org/licenses/LICENSE-2.0
*
* Unless required by applicable law or agreed to in writing,
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package org.apache.cassandra.db;
import java.io.IOException;
import java.util.Arrays;
import java.util.HashSet;
import java.util.Random;
import java.util.TreeMap;
import org.junit.Test;
import org.apache.cassandra.io.DataInputBuffer;
import org.apache.cassandra.io.DataOutputBuffer;
import org.apache.cassandra.db.filter.QueryPath;
import static org.apache.cassandra.Util.column;
public class ColumnFamilyTest
{
// TODO test SuperColumns
@Test
public void testSingleColumn() throws IOException
{
ColumnFamily cf;
cf = ColumnFamily.create("Keyspace1", "Standard1");
cf.addColumn(column("C", "v", 1));
DataOutputBuffer bufOut = new DataOutputBuffer();
ColumnFamily.serializer().serialize(cf, bufOut);
DataInputBuffer bufIn = new DataInputBuffer();
bufIn.reset(bufOut.getData(), bufOut.getLength());
cf = ColumnFamily.serializer().deserialize(bufIn);
assert cf != null;
assert cf.name().equals("Standard1");
assert cf.getSortedColumns().size() == 1;
}
@Test
public void testManyColumns() throws IOException
{
ColumnFamily cf;
TreeMap<String, String> map = new TreeMap<String, String>();
for (int i = 100; i < 1000; ++i)
{
map.put(Integer.toString(i), "Avinash Lakshman is a good man: " + i);
}
// write
cf = ColumnFamily.create("Keyspace1", "Standard1");
DataOutputBuffer bufOut = new DataOutputBuffer();
for (String cName : map.navigableKeySet())
{
cf.addColumn(column(cName, map.get(cName), 314));
}
ColumnFamily.serializer().serialize(cf, bufOut);
// verify
DataInputBuffer bufIn = new DataInputBuffer();
bufIn.reset(bufOut.getData(), bufOut.getLength());
cf = ColumnFamily.serializer().deserialize(bufIn);
for (String cName : map.navigableKeySet())
{
assert new String(cf.getColumn(cName.getBytes()).value()).equals(map.get(cName));
}
assert cf.getColumnNames().size() == map.size();
}
@Test
public void testGetColumnCount()
{
ColumnFamily cf = ColumnFamily.create("Keyspace1", "Standard1");
cf.addColumn(column("col1", "", 1));
cf.addColumn(column("col2", "", 2));
cf.addColumn(column("col1", "", 3));
assert 2 == cf.getColumnCount();
assert 2 == cf.getSortedColumns().size();
}
@Test
public void testTimestamp()
{
ColumnFamily cf = ColumnFamily.create("Keyspace1", "Standard1");
cf.addColumn(column("col1", "val1", 2));
cf.addColumn(column("col1", "val2", 2)); // same timestamp, new value
cf.addColumn(column("col1", "val3", 1)); // older timestamp -- should be ignored
assert Arrays.equals("val2".getBytes(), cf.getColumn("col1".getBytes()).value());
}
@Test
public void testMergeAndAdd()
{
ColumnFamily cf_new = ColumnFamily.create("Keyspace1", "Standard1");
ColumnFamily cf_old = ColumnFamily.create("Keyspace1", "Standard1");
ColumnFamily cf_result = ColumnFamily.create("Keyspace1", "Standard1");
byte val[] = "sample value".getBytes();
byte val2[] = "x value ".getBytes();
// exercise addColumn(QueryPath, ...)
cf_new.addColumn(QueryPath.column("col1".getBytes()), val, 3);
cf_new.addColumn(QueryPath.column("col2".getBytes()), val, 4);
cf_old.addColumn(QueryPath.column("col2".getBytes()), val2, 1);
cf_old.addColumn(QueryPath.column("col3".getBytes()), val2, 2);
cf_result.addColumns(cf_new);
cf_result.addColumns(cf_old);
assert 3 == cf_result.getColumnCount() : "Count is " + cf_new.getColumnCount();
//addcolumns will only add if timestamp >= old timestamp
assert Arrays.equals(val, cf_result.getColumn("col2".getBytes()).value());
}
}