// Searches IoT Hub for messages
async Task <SearchLogResult> SearchIoTHubLogs(Func <string, bool> predicate, SearchLogOptions options = null)
{
var maxAttempts = options?.MaxAttempts ?? this.Configuration.EnsureHasEventMaximumTries;
var processedEvents = new HashSet <string>();
for (int i = 0; i < maxAttempts; i++)
{
if (i > 0)
{
var timeToWait = i * this.Configuration.EnsureHasEventDelayBetweenReadsInSeconds;
if (!string.IsNullOrEmpty(options?.Description))
{
TestLogger.Log($"IoT Hub message '{options.Description}' not found, attempt {i}/{maxAttempts}, waiting {timeToWait} secs");
}
else
{
TestLogger.Log($"IoT Hub message not found, attempt {i}/{maxAttempts}, waiting {timeToWait} secs");
}
await Task.Delay(TimeSpan.FromSeconds(timeToWait));
}
foreach (var item in this.IoTHubMessages.GetEvents())
{
var bodyText = item.Body.Count > 0 ? Encoding.UTF8.GetString(item.Body) : string.Empty;
processedEvents.Add(bodyText);
if (predicate(bodyText))
{
return(new SearchLogResult(true, processedEvents));
}
}
}
return(new SearchLogResult(false, processedEvents));
}
public async Task <SearchLogResult> SearchNetworkServerModuleAsync(Func <string, bool> predicate, SearchLogOptions options = null)
{
SearchLogResult searchResult;
if (this.udpLogListener != null)
{
searchResult = await SearchUdpLogs(predicate, options);
}
else
{
searchResult = await SearchIoTHubLogs(predicate, options);
}
return(searchResult);
}
// Asserts leaf device message payload exists. It searches inside the payload "data" property. Has built-in retries
public async Task AssertIoTHubDeviceMessageExistsAsync(string deviceID, string expectedDataValue, SearchLogOptions options = null)
{
var assertionLevel = this.Configuration.IoTHubAssertLevel;
if (options != null && options.TreatAsError.HasValue)
{
assertionLevel = options.TreatAsError.Value ? LogValidationAssertLevel.Error : LogValidationAssertLevel.Warning;
}
if (assertionLevel == LogValidationAssertLevel.Ignore)
{
return;
}
var searchResult = await this.SearchIoTHubMessageAsync(
(eventData, eventDeviceID, eventDataMessageBody) => IsDeviceMessage(deviceID, expectedDataValue, eventData, eventDeviceID, eventDataMessageBody),
new SearchLogOptions
{
Description = options?.Description ?? expectedDataValue,
TreatAsError = options?.TreatAsError,
});
if (assertionLevel == LogValidationAssertLevel.Error)
{
var logs = string.Join("\n\t", searchResult.Logs.TakeLast(5));
Assert.True(searchResult.Found, $"Searching for {expectedDataValue} failed for device {deviceID}. Current log content: [{logs}]");
}
else if (assertionLevel == LogValidationAssertLevel.Warning)
{
if (!searchResult.Found)
{
var logs = string.Join("\n\t", searchResult.Logs.TakeLast(5));
TestLogger.Log($"[WARN] '{expectedDataValue}' for device {deviceID} found in logs? {searchResult.Found}. Logs: [{logs}]");
}
}
}
// Searches IoT Hub for messages
internal async Task <SearchLogResult> SearchIoTHubMessageAsync(Func <EventData, string, string, bool> predicate, SearchLogOptions options = null)
{
var maxAttempts = options?.MaxAttempts ?? this.Configuration.EnsureHasEventMaximumTries;
var processedEvents = new HashSet <string>();
for (int i = 0; i < maxAttempts; i++)
{
if (i > 0)
{
var timeToWait = i * this.Configuration.EnsureHasEventDelayBetweenReadsInSeconds;
if (!string.IsNullOrEmpty(options?.Description))
{
TestLogger.Log($"IoT Hub message '{options.Description}' not found, attempt {i}/{maxAttempts}, waiting {timeToWait} secs");
}
else
{
TestLogger.Log($"IoT Hub message not found, attempt {i}/{maxAttempts}, waiting {timeToWait} secs");
}
await Task.Delay(TimeSpan.FromSeconds(timeToWait));
}
foreach (var item in this.IoTHubMessages.GetEvents())
{
try
{
var bodyText = item.Body.Count > 0 ? Encoding.UTF8.GetString(item.Body) : string.Empty;
processedEvents.Add(bodyText);
item.SystemProperties.TryGetValue("iothub-connection-device-id", out var deviceId);
if (predicate(item, deviceId?.ToString() ?? string.Empty, bodyText))
{
return(new SearchLogResult(true, processedEvents));
}
}
catch (Exception ex)
{
TestLogger.Log("Error searching in IoT Hub message log: " + ex.ToString());
}
}
}
return(new SearchLogResult(false, processedEvents));
}
// Asserts Network Server Module log exists. It has built-in retries and delays
public async Task AssertNetworkServerModuleLogExistsAsync(Func <string, bool> predicate, SearchLogOptions options)
{
if (this.Configuration.NetworkServerModuleLogAssertLevel == LogValidationAssertLevel.Ignore)
{
return;
}
SearchLogResult searchResult;
if (this.udpLogListener != null)
{
searchResult = await SearchUdpLogs(predicate, options);
}
else
{
searchResult = await SearchIoTHubLogs(predicate, options);
}
if (this.Configuration.NetworkServerModuleLogAssertLevel == LogValidationAssertLevel.Error)
{
var logs = string.Join("\n\t", searchResult.Logs.TakeLast(5));
Assert.True(searchResult.Found, $"Searching for {options?.Description ?? "??"} failed. Current log content: [{logs}]");
}
else if (this.Configuration.NetworkServerModuleLogAssertLevel == LogValidationAssertLevel.Warning)
{
if (!searchResult.Found)
{
var logs = string.Join("\n\t", searchResult.Logs.TakeLast(5));
TestLogger.Log($"[WARN] '{options?.Description ?? "??"}' found in logs? {searchResult.Found}. Logs: [{logs}]");
}
}
}