public void MultilineLoggingInSingleLogEntryWithTlvFormat()
{
var logs = new List <byte[]>();
var offsets = new List <int>();
var counts = new List <int>();
var stream = new TestFileStream((log, offset, count) =>
{
logs.Add(log);
offsets.Add(offset);
counts.Add(count);
});
TextWriter writer = FileDescriptorLogFactory.InitializeWriter(stream);
// assert that initializing the stream does not result in UTF-8 preamble log entry
Assert.Equal(0, counts.Count);
Assert.Equal(0, offsets.Count);
Assert.Equal(0, logs.Count);
const string logMessage = "hello world\nsomething else on a new line.";
int logMessageLength = logMessage.Length;
writer.Write(logMessage);
Assert.Equal(2, offsets.Count);
int headerLogEntryOffset = offsets[0];
int consoleLogEntryOffset = offsets[1];
Assert.Equal(0, headerLogEntryOffset);
Assert.Equal(0, consoleLogEntryOffset);
Assert.Equal(2, counts.Count);
int headerLogEntrySize = counts[0];
int consoleLogEntrySize = counts[1];
Assert.Equal(HeaderLength, headerLogEntrySize);
Assert.Equal(logMessageLength, consoleLogEntrySize);
Assert.Equal(2, logs.Count);
byte[] headerLogEntry = logs[0];
byte[] consoleLogEntry = logs[1];
Assert.Equal(HeaderLength, headerLogEntry.Length);
Assert.Equal(logMessageLength, consoleLogEntry.Length);
byte[] expectedLengthBytes =
{
0x00, 0x00, 0x00, 0x29
};
AssertHeaderBytes(headerLogEntry, expectedLengthBytes);
Assert.Equal(logMessage, Encoding.UTF8.GetString(consoleLogEntry));
}
public void MaxSizeProducesOneLogFrame()
{
var logs = new List <byte[]>();
var offsets = new List <int>();
var counts = new List <int>();
var stream = new TestFileStream((log, offset, count) =>
{
logs.Add(log);
offsets.Add(offset);
counts.Add(count);
});
TextWriter writer = FileDescriptorLogFactory.InitializeWriter(stream);
// assert that initializing the stream does not result in UTF-8 preamble log entry
Assert.Equal(0, counts.Count);
Assert.Equal(0, offsets.Count);
Assert.Equal(0, logs.Count);
string logMessage = new string('a', LogEntryMaxLength - 1) + "b";
writer.Write(logMessage);
Assert.Equal(2, offsets.Count);
int headerLogEntryOffset = offsets[0];
int consoleLogEntryOffset = offsets[1];
Assert.Equal(0, headerLogEntryOffset);
Assert.Equal(0, consoleLogEntryOffset);
Assert.Equal(2, counts.Count);
int headerLogEntrySize = counts[0];
int consoleLogEntrySize = counts[1];
Assert.Equal(HeaderLength, headerLogEntrySize);
Assert.Equal(LogEntryMaxLength, consoleLogEntrySize);
Assert.Equal(2, logs.Count);
byte[] headerLogEntry = logs[0];
byte[] consoleLogEntry = logs[1];
Assert.Equal(HeaderLength, headerLogEntry.Length);
Assert.Equal(LogEntryMaxLength, consoleLogEntry.Length);
byte[] expectedLengthBytes =
{
0x00, 0x03, 0xFF, 0xE6
};
AssertHeaderBytes(headerLogEntry, expectedLengthBytes);
Assert.Equal(logMessage, Encoding.UTF8.GetString(consoleLogEntry));
}
