/*
* 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.
*/
package com.facebook.presto.block;
import com.facebook.presto.spi.block.FixedWidthBlockBuilder;
import io.airlift.slice.Slice;
import org.testng.annotations.Test;
public class TestFixedWidthBlock
extends AbstractTestBlock
{
@Test
public void test()
{
for (int fixedSize = 0; fixedSize < 20; fixedSize++) {
Slice[] expectedValues = createExpectedValues(17, fixedSize);
assertFixedWithValues(expectedValues, fixedSize);
assertFixedWithValues((Slice[]) alternatingNullValues(expectedValues), fixedSize);
}
}
private static void assertFixedWithValues(Slice[] expectedValues, int fixedSize)
{
FixedWidthBlockBuilder blockBuilder = new FixedWidthBlockBuilder(fixedSize, expectedValues.length);
for (Slice expectedValue : expectedValues) {
if (expectedValue == null) {
blockBuilder.appendNull();
}
else {
blockBuilder.writeBytes(expectedValue, 0, expectedValue.length()).closeEntry();
}
}
assertBlock(blockBuilder, expectedValues);
assertBlock(blockBuilder.build(), expectedValues);
}
private static Slice[] createExpectedValues(int positionCount, int fixedSize)
{
Slice[] expectedValues = new Slice[positionCount];
for (int position = 0; position < positionCount; position++) {
expectedValues[position] = createExpectedValue(fixedSize);
}
return expectedValues;
}
}