@Test
public void shouldRewriteLogFiles() throws IOException {
// given
final IOCursor<LogEntry> cursor = mock(IOCursor.class);
final LogVersionedStoreChannel writeChannel = mock(LogVersionedStoreChannel.class);
final LogHeader header = new LogHeader(CURRENT_LOG_VERSION, 1, 42);
when(fs.listFiles(storeDir, versionedLegacyLogFilesFilter))
.thenReturn(new File[] {new File(getLegacyLogFilename(1))});
when(reader.openReadableChannel(new File(getLegacyLogFilename(1))))
.thenReturn(Pair.of(header, cursor));
when(writer.openWritableChannel(new File(migrationDir, getLegacyLogFilename(1))))
.thenReturn(writeChannel);
// when
new LegacyLogs(fs, reader, writer).migrateLogs(storeDir, migrationDir);
// then
verify(writer, times(1)).writeLogHeader(writeChannel, header);
verify(writer, times(1)).writeAllLogEntries(writeChannel, cursor);
}
