/**
* 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.camel.dataformat.csv;
import java.io.IOException;
import java.io.InputStreamReader;
import java.util.Arrays;
import java.util.NoSuchElementException;
import mockit.Expectations;
import mockit.Injectable;
import org.apache.commons.csv.CSVParser;
import org.junit.Assert;
import org.junit.Test;
public class CsvIteratorTest {
public static final String HDD_CRASH = "HDD crash";
@Test
public void closeIfError(
@Injectable final InputStreamReader reader,
@Injectable final CSVParser parser) throws IOException {
new Expectations() {
{
parser.getLine();
result = new String[] {"1"};
parser.getLine();
result = new String[] {"2"};
parser.getLine();
result = new IOException(HDD_CRASH);
// The reader will be closed when there is nothing left
reader.close();
}
};
@SuppressWarnings("resource")
CsvIterator iterator = new CsvIterator(parser, reader);
Assert.assertTrue(iterator.hasNext());
Assert.assertEquals(Arrays.asList("1"), iterator.next());
Assert.assertTrue(iterator.hasNext());
try {
iterator.next();
Assert.fail("exception expected");
} catch (IllegalStateException e) {
Assert.assertEquals(HDD_CRASH, e.getCause().getMessage());
}
Assert.assertFalse(iterator.hasNext());
try {
iterator.next();
Assert.fail("exception expected");
} catch (NoSuchElementException e) {
// okay
}
}
@Test
public void normalCycle(@Injectable final InputStreamReader reader,
@Injectable final CSVParser parser) throws IOException {
new Expectations() {
{
parser.getLine();
result = new String[] {"1"};
parser.getLine();
result = new String[] {"2"};
parser.getLine();
result = null;
// The reader will be closed when there is nothing left
reader.close();
}
};
@SuppressWarnings("resource")
CsvIterator iterator = new CsvIterator(parser, reader);
Assert.assertTrue(iterator.hasNext());
Assert.assertEquals(Arrays.asList("1"), iterator.next());
Assert.assertTrue(iterator.hasNext());
Assert.assertEquals(Arrays.asList("2"), iterator.next());
Assert.assertFalse(iterator.hasNext());
try {
iterator.next();
Assert.fail("exception expected");
} catch (NoSuchElementException e) {
// okay
}
}
}