/*
* 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.util;
import com.facebook.presto.spi.ColumnMetadata;
import com.facebook.presto.spi.RecordCursor;
import com.google.common.base.Splitter;
import io.airlift.slice.Slices;
import org.testng.annotations.Test;
import static com.facebook.presto.spi.type.VarcharType.VARCHAR;
import static com.google.common.io.CharStreams.newReaderSupplier;
import static org.testng.Assert.assertEquals;
import static org.testng.Assert.assertFalse;
import static org.testng.Assert.assertTrue;
public class TestDelimitedRecordIterable
{
@Test
public void testExtraction()
throws Exception
{
DelimitedRecordSet recordIterable = new DelimitedRecordSet(
newReaderSupplier("apple,fuu,123\nbanana,bar,456"),
Splitter.on(','),
new ColumnMetadata("fruit", VARCHAR, 0, false),
new ColumnMetadata("foo", VARCHAR, 1, false),
new ColumnMetadata("value", VARCHAR, 2, false));
RecordCursor cursor = recordIterable.cursor();
assertTrue(cursor.advanceNextPosition());
assertEquals(cursor.getSlice(0), Slices.utf8Slice("apple"));
assertEquals(cursor.getSlice(1), Slices.utf8Slice("fuu"));
assertEquals(cursor.getSlice(2), Slices.utf8Slice("123"));
assertEquals(cursor.getLong(2), 123L);
assertEquals(cursor.getDouble(2), 123.0);
assertTrue(cursor.advanceNextPosition());
assertEquals(cursor.getSlice(0), Slices.utf8Slice("banana"));
assertEquals(cursor.getSlice(1), Slices.utf8Slice("bar"));
assertEquals(cursor.getSlice(2), Slices.utf8Slice("456"));
assertEquals(cursor.getLong(2), 456L);
assertEquals(cursor.getDouble(2), 456.0);
assertFalse(cursor.advanceNextPosition());
}
}