/**
* Verifies getting and closing views and makes sure that data and ref counts are consistent.
*
* @throws IOException
*/
@Test
public void viewAndRefCountTest() throws IOException {
String segmentName = "log_current";
LogSegment segment = getSegment(segmentName, STANDARD_SEGMENT_SIZE, true);
try {
long startOffset = segment.getStartOffset();
int readSize = 100;
int viewCount = 5;
byte[] data = appendRandomData(segment, readSize * viewCount);
for (int i = 0; i < viewCount; i++) {
getAndVerifyView(segment, startOffset, i * readSize, data, i + 1);
}
for (int i = 0; i < viewCount; i++) {
segment.closeView();
assertEquals("Ref count is not as expected", viewCount - i - 1, segment.refCount());
}
} finally {
closeSegmentAndDeleteFile(segment);
}
}
