/**
* Licensed to the Apache Software Foundation (ASF) under one
* or more contributor license agreements. See the NOTICE file
* distributed with this work for additional information
* regarding copyright ownership. The ASF licenses this file
* to you 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 org.apache.drill.jdbc;
import static org.junit.Assert.assertEquals;
import static org.junit.Assert.assertFalse;
import static org.junit.Assert.assertNotNull;
import static org.junit.Assert.assertTrue;
import static org.mockito.Mockito.doAnswer;
import static org.mockito.Mockito.mock;
import static org.mockito.Mockito.when;
import java.util.ArrayList;
import java.util.Iterator;
import java.util.List;
import org.apache.calcite.avatica.ColumnMetaData;
import org.apache.drill.common.types.TypeProtos.DataMode;
import org.apache.drill.common.types.TypeProtos.MajorType;
import org.apache.drill.common.types.TypeProtos.MinorType;
import org.apache.drill.exec.record.BatchSchema;
import org.apache.drill.exec.record.MaterializedField;
import org.apache.drill.jdbc.impl.DrillColumnMetaDataList;
import org.junit.After;
import org.junit.Before;
import org.junit.Test;
import org.mockito.Mockito;
import org.mockito.invocation.InvocationOnMock;
import org.mockito.stubbing.Answer;
public class DrillColumnMetaDataListTest {
private DrillColumnMetaDataList emptyList;
private DrillColumnMetaDataList oneElementList;
private DrillColumnMetaDataList twoElementList;
private ColumnMetaData exampleIntColumn = new ColumnMetaData(
0, false, false, false, false, 0, true, 10, "intLabel", "intColName", "schemaName",
0, 1, ",myTable", "myCategory", new ColumnMetaData.ScalarType( 1, "myIntType", ColumnMetaData.Rep.INTEGER ),
true, false, false, Integer.class.getName() );
private ColumnMetaData exampleStringColumn = new ColumnMetaData(
0, false, false, false, false, 0, true, 10, "stringLabel", "stringColName", "schemaName",
0, 1, ",myTable", "myCategory", new ColumnMetaData.ScalarType( 1, "myStringType", ColumnMetaData.Rep.STRING ),
false, true, true, String.class.getName() );
@Before
public void setUp() throws Exception {
emptyList = new DrillColumnMetaDataList();
// Create mock columns
final MaterializedField exampleIntField = mock(MaterializedField.class);
MajorType exampleIntType = MajorType.newBuilder().setMinorType(MinorType.INT).build();
when(exampleIntField.getPath()).thenReturn("/path/to/testInt");
when(exampleIntField.getType()).thenReturn(exampleIntType);
when(exampleIntField.getDataMode()).thenReturn(DataMode.OPTIONAL);
final MaterializedField exampleStringField = mock(MaterializedField.class);
MajorType exampleStringType = MajorType.newBuilder().setMinorType(MinorType.VARCHAR).build();
when(exampleStringField.getPath()).thenReturn("/path/to/testString");
when(exampleStringField.getType()).thenReturn(exampleStringType);
when(exampleStringField.getDataMode()).thenReturn(DataMode.REQUIRED);
oneElementList = new DrillColumnMetaDataList();
BatchSchema oneElementSchema = mock(BatchSchema.class);
when(oneElementSchema.getFieldCount()).thenReturn(1);
doAnswer(
new Answer<MaterializedField>() {
@Override
public MaterializedField answer(InvocationOnMock invocationOnMock) throws Throwable {
Integer index = (Integer) invocationOnMock.getArguments()[0];
if (index == 0) {
return exampleIntField;
}
return null;
}
}
).when(oneElementSchema).getColumn(Mockito.anyInt());
List<Class<?>> oneClassList = new ArrayList<>();
oneClassList.add(Integer.class);
oneElementList.updateColumnMetaData("testCatalog", "testSchema", "testTable",
oneElementSchema, oneClassList);
twoElementList = new DrillColumnMetaDataList();
BatchSchema twoElementSchema = mock(BatchSchema.class);
when(twoElementSchema.getFieldCount()).thenReturn(2);
doAnswer(
new Answer<MaterializedField>() {
@Override
public MaterializedField answer(InvocationOnMock invocationOnMock) throws Throwable {
Integer index = (Integer) invocationOnMock.getArguments()[0];
if (index == 0) {
return exampleIntField;
} else if (index == 1) {
return exampleStringField;
}
return null;
}
}
).when(twoElementSchema).getColumn(Mockito.anyInt());
List<Class<?>> twoClassList = new ArrayList<>();
twoClassList.add(Integer.class);
twoClassList.add(String.class);
twoElementList.updateColumnMetaData("testCatalog", "testSchema", "testTable",
twoElementSchema, twoClassList);
}
@After
public void tearDown() throws Exception {
}
@Test
public void testSize() throws Exception {
assertEquals("Default constructor should give empty list", 0, emptyList.size());
assertEquals(1, oneElementList.size());
assertEquals(2, twoElementList.size());
}
@Test(expected = IndexOutOfBoundsException.class)
public void testGetFromEmptyList() throws Exception {
emptyList.get(0);
}
@Test
public void testGetFromNonEmptyList() throws Exception {
assertEquals(oneElementList.get(0).columnName, "/path/to/testInt");
assertEquals(twoElementList.get(0).columnName, "/path/to/testInt");
assertEquals(twoElementList.get(1).columnName, "/path/to/testString");
}
@Test
public void testUpdateColumnMetaData() throws Exception {
}
@Test
public void testIsEmpty() throws Exception {
assertTrue("Default constructor should give empty list", emptyList.isEmpty());
assertFalse("One-element List should not be empty", oneElementList.isEmpty());
assertFalse("Two-element List should not be empty", twoElementList.isEmpty());
}
@Test
public void testContains() throws Exception {
assertFalse(emptyList.contains(exampleIntColumn));
assertFalse(emptyList.contains(exampleStringColumn));
assertTrue(oneElementList.contains(oneElementList.get(0)));
assertFalse(oneElementList.contains(exampleStringColumn));
assertTrue(twoElementList.contains(twoElementList.get(0)));
assertTrue(twoElementList.contains(twoElementList.get(1)));
assertFalse(twoElementList.contains(exampleStringColumn));
}
@Test
public void testIterator() throws Exception {
assertFalse(emptyList.iterator().hasNext());
Iterator<ColumnMetaData> iterator1 = oneElementList.iterator();
assertNotNull(iterator1);
assertTrue(iterator1.hasNext());
assertEquals(iterator1.next(), oneElementList.get(0));
assertFalse(iterator1.hasNext());
Iterator<ColumnMetaData> iterator2 = twoElementList.iterator();
assertNotNull(iterator2);
assertTrue(iterator2.hasNext());
assertEquals(iterator2.next(), twoElementList.get(0));
assertTrue(iterator2.hasNext());
assertEquals(iterator2.next(), twoElementList.get(1));
assertFalse(iterator2.hasNext());
}
@Test
public void testToArray() throws Exception {
assertEquals(0, emptyList.toArray().length);
assertEquals(1, oneElementList.toArray().length);
assertEquals(2, twoElementList.toArray().length);
}
@Test
public void testToArrayWithParam() throws Exception {
ColumnMetaData[] colArray0 = emptyList.toArray(new ColumnMetaData[] {});
assertEquals(0, colArray0.length);
ColumnMetaData[] colArray1 = oneElementList.toArray(new ColumnMetaData[] {});
assertEquals(1, colArray1.length);
ColumnMetaData[] colArray2 = twoElementList.toArray(new ColumnMetaData[] {});
assertEquals(2, colArray2.length);
}
@Test
public void testIndexOf() throws Exception {
assertEquals(-1, emptyList.indexOf(exampleIntColumn));
assertEquals(-1, oneElementList.indexOf(exampleIntColumn));
assertEquals(-1, twoElementList.indexOf(exampleIntColumn));
assertEquals(0, oneElementList.indexOf(oneElementList.get(0)));
assertEquals(0, twoElementList.indexOf(twoElementList.get(0)));
assertEquals(1, twoElementList.indexOf(twoElementList.get(1)));
}
@Test
public void testLastIndexOf() throws Exception {
assertEquals(-1, emptyList.lastIndexOf(exampleIntColumn));
assertEquals(-1, oneElementList.lastIndexOf(exampleIntColumn));
assertEquals(-1, twoElementList.lastIndexOf(exampleIntColumn));
assertEquals(0, oneElementList.lastIndexOf(oneElementList.get(0)));
assertEquals(0, twoElementList.lastIndexOf(twoElementList.get(0)));
assertEquals(1, twoElementList.lastIndexOf(twoElementList.get(1)));
}
}