/*
* Copyright 2008 the original author or authors.
*
* 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 org.springframework.batch.core.partition;
import static org.junit.Assert.*;
import org.junit.After;
import org.junit.Before;
import org.junit.Test;
import org.springframework.batch.item.ExecutionContext;
public class ExampleItemReaderTests {
private ExampleItemReader reader = new ExampleItemReader();
@Before
@After
public void ensureFailFlagUnset() {
ExampleItemReader.fail = false;
}
@Test
public void testRead() throws Exception {
int count = 0;
while (reader.read()!=null) {
count++;
}
assertEquals(8, count);
}
@Test
public void testOpen() throws Exception {
ExecutionContext context = new ExecutionContext();
for (int i=0; i<4; i++) {
reader.read();
}
reader.update(context);
reader.open(context);
int count = 0;
while (reader.read()!=null) {
count++;
}
assertEquals(4, count);
}
@Test
public void testFailAndRestart() throws Exception {
ExecutionContext context = new ExecutionContext();
ExampleItemReader.fail = true;
for (int i=0; i<4; i++) {
reader.read();
reader.update(context);
}
try {
reader.read();
reader.update(context);
fail("Expected Exception");
}
catch (Exception e) {
// expected
assertEquals("Planned failure", e.getMessage());
}
assertFalse(ExampleItemReader.fail);
reader.open(context);
int count = 0;
while (reader.read()!=null) {
count++;
}
assertEquals(4, count);
}
}