/**
* 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.hadoop.fs.shell.find;
import static org.junit.Assert.*;
import static org.mockito.Mockito.mock;
import static org.mockito.Mockito.when;
import java.io.IOException;
import org.apache.hadoop.fs.FileStatus;
import org.apache.hadoop.fs.shell.PathData;
import org.apache.hadoop.fs.shell.find.Empty;
import org.apache.hadoop.fs.shell.find.FindOptions;
import org.apache.hadoop.fs.shell.find.Result;
import org.junit.Test;
import org.junit.Before;
public class TestEmpty extends TestExpression {
private MockFileSystem fs;
@Before
public void setUp() throws IOException {
MockFileSystem.reset();
fs = new MockFileSystem();
}
@Test
public void applyEmptyFile() throws IOException {
FileStatus fileStatus = mock(FileStatus.class);
when(fileStatus.isDirectory()).thenReturn(false);
when(fileStatus.getLen()).thenReturn(0l);
fs.setFileStatus("emptyFile", fileStatus);
PathData item = new PathData("emptyFile", fs.getConf());
Empty empty = new Empty();
empty.initialise(new FindOptions());
assertEquals(Result.PASS, empty.apply(item));
}
@Test
public void applyNotEmptyFile() throws IOException {
FileStatus fileStatus = mock(FileStatus.class);
when(fileStatus.isDirectory()).thenReturn(false);
when(fileStatus.getLen()).thenReturn(1l);
fs.setFileStatus("notEmptyFile", fileStatus);
PathData item = new PathData("notEmptyFile", fs.getConf());
Empty empty = new Empty();
empty.initialise(new FindOptions());
assertEquals(Result.FAIL, empty.apply(item));
}
@Test
public void applyEmptyDirectory() throws IOException {
FileStatus fileStatus = mock(FileStatus.class);
when(fileStatus.isDirectory()).thenReturn(false);
fs.setFileStatus("emptyDirectory", fileStatus);
fs.setListStatus("emptyDirectory", new FileStatus[0]);
PathData item = new PathData("emptyDirectory", fs.getConf());
Empty empty = new Empty();
empty.initialise(new FindOptions());
assertEquals(Result.PASS, empty.apply(item));
}
@Test
public void applyNotEmptyDirectory() throws IOException {
FileStatus fileStatus = mock(FileStatus.class);
when(fileStatus.isDirectory()).thenReturn(false);
fs.setFileStatus("notEmptyDirectory", fileStatus);
fs.setListStatus("notEmptyDirectory", new FileStatus[] {mock(FileStatus.class)});
PathData item = new PathData("notEmptyDirectory", fs.getConf());
Empty empty = new Empty();
empty.initialise(new FindOptions());
assertEquals(Result.PASS, empty.apply(item));
}
}