public async Task Logging_TimedBuffer()
{
// To ensure this test does not take too long and to not wait for the buffer to
// flush itself we use custom polling to check for the initial check that no
// entries exist.
var quickPolling = new LogEntryPolling(TimeSpan.FromSeconds(10));
string testId = Utils.GetTestId();
DateTime startTime = DateTime.UtcNow;
var builder = new WebHostBuilder().UseStartup <TimedBufferWarningLoggerTestApplication>();
using (TestServer server = new TestServer(builder))
using (var client = server.CreateClient())
{
await client.GetAsync($"/Main/Warning/{testId}");
await client.GetAsync($"/Main/Error/{testId}");
var noResults = quickPolling.GetEntries(startTime, testId, 0, LogSeverity.Warning);
Assert.Empty(noResults);
await client.GetAsync($"/Main/Error/{testId}");
await client.GetAsync($"/Main/Critical/{testId}");
Thread.Sleep(TimeSpan.FromSeconds(20));
var results = _polling.GetEntries(startTime, testId, 4, LogSeverity.Warning);
Assert.Equal(4, results.Count());
Assert.NotNull(results.FirstOrDefault(l => l.Severity == LogSeverity.Warning));
Assert.Equal(2, results.Count(l => l.Severity == LogSeverity.Error));
Assert.NotNull(results.FirstOrDefault(l => l.Severity == LogSeverity.Critical));
}
}
private static async Task TestLogging(string testId, DateTime startTime, HttpClient client)
{
var polling = new LogEntryPolling(TimeSpan.FromSeconds(60));
await client.GetAsync($"/Main/Warning/{testId}");
var results = polling.GetEntries(startTime, testId, 1, LogSeverity.Warning);
Assert.Single(results);
}
internal static void PollAndVerifyLog(LogEntryPolling poller, DateTimeOffset startTime, string testId)
{
var results = poller.GetEntries(startTime, testId, 1, LogSeverity.Info);
results = from result in results
where result.JsonPayload?.Fields["log_name"]?.StringValue?.Equals(typeof(LoggingSamplesController).FullName) ?? false
select result;
var logEntry = results.Single();
Assert.Equal(LogSeverity.Info, logEntry.Severity);
Assert.Contains(testId, logEntry.JsonPayload?.Fields["message"]?.StringValue);
}
private static async Task TestLogging(string testId, DateTime startTime, HttpClient client)
{
var polling = new LogEntryPolling(TimeSpan.FromSeconds(60));
await client.GetAsync($"/Main/Warning/{testId}");
var results = polling.GetEntries(startTime, testId, 1, LogSeverity.Warning);
Assert.Single(results);
var result = results.Single();
Assert.Single(result.Labels);
var label = result.Labels.Single();
Assert.Equal("trace_identifier", label.Key);
Assert.NotEmpty(label.Value);
}
