public void testInvalidFile() throws InterruptedException {
config.put(FileStreamSourceConnector.FILE_CONFIG, "bogusfilename");
task.start(config);
// Currently the task retries indefinitely if the file isn't found, but shouldn't return any
// data.
for (int i = 0; i < 100; i++) {
assertEquals(null, task.poll());
}
}
@Test(expected = ConnectException.class)
public void testMissingTopic() throws InterruptedException {
replay();
config.remove(FileStreamSourceConnector.TOPIC_CONFIG);
task.start(config);
}
@Before
public void setup() throws IOException {
tempFile = File.createTempFile("file-stream-source-task-test", null);
config = new HashMap<>();
config.put(FileStreamSourceConnector.FILE_CONFIG, tempFile.getAbsolutePath());
config.put(FileStreamSourceConnector.TOPIC_CONFIG, TOPIC);
task = new FileStreamSourceTask();
offsetStorageReader = PowerMock.createMock(OffsetStorageReader.class);
context = PowerMock.createMock(SourceTaskContext.class);
task.initialize(context);
}
@Test
public void testNormalLifecycle() throws InterruptedException, IOException {
expectOffsetLookupReturnNone();
replay();
task.start(config);
FileOutputStream os = new FileOutputStream(tempFile);
assertEquals(null, task.poll());
os.write("partial line".getBytes());
os.flush();
assertEquals(null, task.poll());
os.write(" finished\n".getBytes());
os.flush();
List<SourceRecord> records = task.poll();
assertEquals(1, records.size());
assertEquals(TOPIC, records.get(0).topic());
assertEquals("partial line finished", records.get(0).value());
assertEquals(
Collections.singletonMap(FileStreamSourceTask.FILENAME_FIELD, tempFile.getAbsolutePath()),
records.get(0).sourcePartition());
assertEquals(
Collections.singletonMap(FileStreamSourceTask.POSITION_FIELD, 22L),
records.get(0).sourceOffset());
assertEquals(null, task.poll());
// Different line endings, and make sure the final \r doesn't result in a line until we can
// read the subsequent byte.
os.write("line1\rline2\r\nline3\nline4\n\r".getBytes());
os.flush();
records = task.poll();
assertEquals(4, records.size());
assertEquals("line1", records.get(0).value());
assertEquals(
Collections.singletonMap(FileStreamSourceTask.FILENAME_FIELD, tempFile.getAbsolutePath()),
records.get(0).sourcePartition());
assertEquals(
Collections.singletonMap(FileStreamSourceTask.POSITION_FIELD, 28L),
records.get(0).sourceOffset());
assertEquals("line2", records.get(1).value());
assertEquals(
Collections.singletonMap(FileStreamSourceTask.FILENAME_FIELD, tempFile.getAbsolutePath()),
records.get(1).sourcePartition());
assertEquals(
Collections.singletonMap(FileStreamSourceTask.POSITION_FIELD, 35L),
records.get(1).sourceOffset());
assertEquals("line3", records.get(2).value());
assertEquals(
Collections.singletonMap(FileStreamSourceTask.FILENAME_FIELD, tempFile.getAbsolutePath()),
records.get(2).sourcePartition());
assertEquals(
Collections.singletonMap(FileStreamSourceTask.POSITION_FIELD, 41L),
records.get(2).sourceOffset());
assertEquals("line4", records.get(3).value());
assertEquals(
Collections.singletonMap(FileStreamSourceTask.FILENAME_FIELD, tempFile.getAbsolutePath()),
records.get(3).sourcePartition());
assertEquals(
Collections.singletonMap(FileStreamSourceTask.POSITION_FIELD, 47L),
records.get(3).sourceOffset());
os.write("subsequent text".getBytes());
os.flush();
records = task.poll();
assertEquals(1, records.size());
assertEquals("", records.get(0).value());
assertEquals(
Collections.singletonMap(FileStreamSourceTask.FILENAME_FIELD, tempFile.getAbsolutePath()),
records.get(0).sourcePartition());
assertEquals(
Collections.singletonMap(FileStreamSourceTask.POSITION_FIELD, 48L),
records.get(0).sourceOffset());
task.stop();
}