/*
* 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.example;
import com.facebook.presto.spi.RecordCursor;
import com.facebook.presto.spi.RecordSet;
import com.google.common.collect.ImmutableList;
import com.google.common.collect.ImmutableMap;
import org.testng.annotations.AfterClass;
import org.testng.annotations.BeforeClass;
import org.testng.annotations.Test;
import java.net.URI;
import java.util.LinkedHashMap;
import java.util.Map;
import static com.facebook.presto.spi.ColumnType.LONG;
import static com.facebook.presto.spi.ColumnType.STRING;
import static com.google.common.base.Charsets.UTF_8;
import static org.testng.Assert.assertEquals;
import static org.testng.Assert.assertFalse;
public class TestExampleRecordSet
{
private ExampleHttpServer exampleHttpServer;
private URI dataUri;
@Test
public void testGetColumnTypes()
throws Exception
{
RecordSet recordSet = new ExampleRecordSet(new ExampleSplit("test", "schema", "table", dataUri), ImmutableList.of(
new ExampleColumnHandle("test", "text", STRING, 0),
new ExampleColumnHandle("test", "value", LONG, 1)));
assertEquals(recordSet.getColumnTypes(), ImmutableList.of(STRING, LONG));
recordSet = new ExampleRecordSet(new ExampleSplit("test", "schema", "table", dataUri), ImmutableList.of(
new ExampleColumnHandle("test", "value", LONG, 1),
new ExampleColumnHandle("test", "text", STRING, 0)));
assertEquals(recordSet.getColumnTypes(), ImmutableList.of(LONG, STRING));
recordSet = new ExampleRecordSet(new ExampleSplit("test", "schema", "table", dataUri), ImmutableList.of(
new ExampleColumnHandle("test", "value", LONG, 1),
new ExampleColumnHandle("test", "value", LONG, 1),
new ExampleColumnHandle("test", "text", STRING, 0)));
assertEquals(recordSet.getColumnTypes(), ImmutableList.of(LONG, LONG, STRING));
recordSet = new ExampleRecordSet(new ExampleSplit("test", "schema", "table", dataUri), ImmutableList.<ExampleColumnHandle>of());
assertEquals(recordSet.getColumnTypes(), ImmutableList.of());
}
@Test
public void testCursorSimple()
throws Exception
{
RecordSet recordSet = new ExampleRecordSet(new ExampleSplit("test", "schema", "table", dataUri), ImmutableList.of(
new ExampleColumnHandle("test", "text", STRING, 0),
new ExampleColumnHandle("test", "value", LONG, 1)));
RecordCursor cursor = recordSet.cursor();
assertEquals(cursor.getType(0), STRING);
assertEquals(cursor.getType(1), LONG);
Map<String, Long> data = new LinkedHashMap<>();
while (cursor.advanceNextPosition()) {
data.put(new String(cursor.getString(0), UTF_8), cursor.getLong(1));
assertFalse(cursor.isNull(0));
assertFalse(cursor.isNull(1));
}
assertEquals(data, ImmutableMap.<String, Long>builder()
.put("ten", 10L)
.put("eleven", 11L)
.put("twelve", 12L)
.build());
}
@Test
public void testCursorMixedOrder()
throws Exception
{
RecordSet recordSet = new ExampleRecordSet(new ExampleSplit("test", "schema", "table", dataUri), ImmutableList.of(
new ExampleColumnHandle("test", "value", LONG, 1),
new ExampleColumnHandle("test", "value", LONG, 1),
new ExampleColumnHandle("test", "text", STRING, 0)));
RecordCursor cursor = recordSet.cursor();
Map<String, Long> data = new LinkedHashMap<>();
while (cursor.advanceNextPosition()) {
assertEquals(cursor.getLong(0), cursor.getLong(1));
data.put(new String(cursor.getString(2), UTF_8), cursor.getLong(0));
}
assertEquals(data, ImmutableMap.<String, Long>builder()
.put("ten", 10L)
.put("eleven", 11L)
.put("twelve", 12L)
.build());
}
//
// TODO: your code should also have tests for all types that you support and for the state machine of your cursor
//
//
// Start http server for testing
//
@BeforeClass
public void setUp()
throws Exception
{
exampleHttpServer = new ExampleHttpServer();
dataUri = exampleHttpServer.resolve("/example-data/numbers-2.csv");
}
@AfterClass
public void tearDown()
throws Exception
{
if (exampleHttpServer != null) {
exampleHttpServer.stop();
}
}
}