private static async Task MakeOneArchiveFile(int maxFileSizeKilobytes, RollingFileLogProvider rollingFileLogProvider)
{
var logEntry = GetLogEntry();
// Write to the log file until it has exceeded the max file size.
while (IsTooSmallForRollOver(maxFileSizeKilobytes))
{
await rollingFileLogProvider.WriteAsync(logEntry);
}
// This log entry should cause the existing log file to be archived, and a new one created.
await rollingFileLogProvider.WriteAsync(logEntry);
}
public async void PrunesOldArchiveFiles()
{
const int maxFileSizeKilobytes = 50;
var logProvider =
new RollingFileLogProvider(
_logFilePath,
maxFileSizeKilobytes,
2,
logFormatter: new SerializingLogFormatter(new XmlSerializerSerializer()));
Assert.That(GetFileCount(), Is.EqualTo(0));
await logProvider.WriteAsync(GetLogEntry());
Assert.That(GetFileCount(), Is.EqualTo(1));
await MakeOneArchiveFile(maxFileSizeKilobytes, logProvider);
Assert.That(GetFileCount(), Is.EqualTo(2));
await MakeOneArchiveFile(maxFileSizeKilobytes, logProvider);
Assert.That(GetFileCount(), Is.EqualTo(3));
await MakeOneArchiveFile(maxFileSizeKilobytes, logProvider);
Assert.That(GetFileCount(), Is.EqualTo(3));
await MakeOneArchiveFile(maxFileSizeKilobytes, logProvider);
Assert.That(GetFileCount(), Is.EqualTo(3));
}
public async Task WriteAsyncPrunesOldArchiveFiles()
{
const int maxFileSizeKilobytes = 50;
var rollingFileLogProvider =
new RollingFileLogProvider(
_logFilePath,
new JsonLogFormatter(),
maxFileSizeKilobytes: maxFileSizeKilobytes,
maxArchiveCount: 2);
GetFileCount().Should().Be(0);
await rollingFileLogProvider.WriteAsync(GetLogEntry());
GetFileCount().Should().Be(1);
await MakeOneArchiveFile(maxFileSizeKilobytes, rollingFileLogProvider);
GetFileCount().Should().Be(2);
await MakeOneArchiveFile(maxFileSizeKilobytes, rollingFileLogProvider);
GetFileCount().Should().Be(3);
await MakeOneArchiveFile(maxFileSizeKilobytes, rollingFileLogProvider);
GetFileCount().Should().Be(3);
await MakeOneArchiveFile(maxFileSizeKilobytes, rollingFileLogProvider);
GetFileCount().Should().Be(3);
}
public async Task WriteLineAsyncFormatsTheLogEntryAndWritesItToDisk()
{
var rollingFileLogProvider = new RollingFileLogProvider(_logFilePath, "{level}:{message}");
var logEntry = new LogEntry("Hello, world!", LogLevel.Info);
await rollingFileLogProvider.WriteAsync(logEntry);
var output = await File.ReadAllTextAsync(_logFilePath);
output.Should().Be($"Info:Hello, world!{Environment.NewLine}");
}
public async void CausesTheLogFileToBeArchivedWhenItsSizeGetsTooBig()
{
const int maxFileSizeKilobytes = 50;
var logProvider =
new RollingFileLogProvider(
_logFilePath,
maxFileSizeKilobytes,
logFormatter: new SerializingLogFormatter(new XmlSerializerSerializer()));
Assert.That(GetFileCount(), Is.EqualTo(0));
await logProvider.WriteAsync(GetLogEntry());
Assert.That(GetFileCount(), Is.EqualTo(1));
await MakeOneArchiveFile(maxFileSizeKilobytes, logProvider);
Assert.That(GetFileCount(), Is.EqualTo(2));
}
public async Task WriteAsyncCausesTheLogFileToBeArchivedWhenItsSizeGetsTooBig()
{
const int maxFileSizeKilobytes = 50;
var rollingFileLogProvider =
new RollingFileLogProvider(
_logFilePath,
new JsonLogFormatter(),
maxFileSizeKilobytes: maxFileSizeKilobytes);
GetFileCount().Should().Be(0);
await rollingFileLogProvider.WriteAsync(GetLogEntry());
GetFileCount().Should().Be(1);
await MakeOneArchiveFile(maxFileSizeKilobytes, rollingFileLogProvider);
GetFileCount().Should().Be(2);
}
private static async Task MakeOneArchiveFile(int maxFileSizeKilobytes, RollingFileLogProvider logProvider)
{
var logEntry = GetLogEntry();
// Write to the log file until it has exceeded the max file size.
while (IsTooSmallForRollOver(maxFileSizeKilobytes))
{
await logProvider.WriteAsync(logEntry);
}
// This log entry should cause the existing log file to be archived, and a new one created.
await logProvider.WriteAsync(logEntry);
}
