//JAVA TO C# CONVERTER WARNING: Method 'throws' clauses are not available in C#:
//ORIGINAL LINE: private org.neo4j.kernel.impl.transaction.log.ReadableLogChannel openLogFile(org.neo4j.io.fs.FileSystemAbstraction fs, int version) throws java.io.IOException
internal virtual ReadableLogChannel OpenLogFile(FileSystemAbstraction fs, int version)
{
LogFiles logFiles = LogFilesBuilder.logFilesBasedOnlyBuilder(WorkingDirectory, fs).build();
PhysicalLogVersionedStoreChannel channel = logFiles.OpenForVersion(version);
return(new ReadAheadLogChannel(channel, new ReaderLogVersionBridge(logFiles)));
}
//JAVA TO C# CONVERTER TODO TASK: Most Java annotations will not have direct .NET equivalent attributes:
//ORIGINAL LINE: @Test public void shouldSuppressFailureToCloseChannelInFailedAttemptToReadHeaderAfterOpen() throws Exception
//JAVA TO C# CONVERTER WARNING: Method 'throws' clauses are not available in C#:
public virtual void ShouldSuppressFailureToCloseChannelInFailedAttemptToReadHeaderAfterOpen()
{
// GIVEN a file which returns 1/2 log header size worth of bytes
FileSystemAbstraction fs = mock(typeof(FileSystemAbstraction));
LogFiles logFiles = LogFilesBuilder.builder(_directory.databaseLayout(), fs).withTransactionIdStore(_transactionIdStore).withLogVersionRepository(_logVersionRepository).build();
int logVersion = 0;
File logFile = logFiles.GetLogFileForVersion(logVersion);
StoreChannel channel = mock(typeof(StoreChannel));
when(channel.read(any(typeof(ByteBuffer)))).thenReturn(LogHeader.LOG_HEADER_SIZE / 2);
when(fs.FileExists(logFile)).thenReturn(true);
when(fs.Open(eq(logFile), any(typeof(OpenMode)))).thenReturn(channel);
doThrow(typeof(IOException)).when(channel).close();
// WHEN
try
{
logFiles.OpenForVersion(logVersion);
fail("Should have failed");
}
catch (IncompleteLogHeaderException e)
{
// THEN good
verify(channel).close();
assertEquals(1, e.Suppressed.length);
assertTrue(e.Suppressed[0] is IOException);
}
}