public async Task can_write_payload_successfully_with_creds()
{
var httpMessageHandlerMock = new Mock <HttpMessageHandler>();
httpMessageHandlerMock.Protected()
.Setup <Task <HttpResponseMessage> >(
"SendAsync",
ItExpr.IsAny <HttpRequestMessage>(),
ItExpr.IsAny <CancellationToken>())
.Returns(Task.FromResult(new HttpResponseMessage(HttpStatusCode.OK)));
var client = new DefaultLineProtocolClient(
new LoggerFactory(),
new InfluxDBSettings("influx", new Uri("http://localhost"))
{
UserName = "******",
Password = "******"
},
new HttpPolicy(),
httpMessageHandlerMock.Object);
var response = await client.WriteAsync(_payload, CancellationToken.None);
response.Success.Should().BeTrue();
}
public async Task should_back_off_when_reached_max_failures()
{
var httpMessageHandlerMock = new Mock <HttpMessageHandler>();
httpMessageHandlerMock.Protected()
.Setup <Task <HttpResponseMessage> >("SendAsync", ItExpr.IsAny <HttpRequestMessage>(), ItExpr.IsAny <CancellationToken>())
.Returns(Task.FromResult(new HttpResponseMessage(HttpStatusCode.BadRequest)));
var policy = new HttpPolicy {
FailuresBeforeBackoff = 3
};
var client = new DefaultLineProtocolClient(new LoggerFactory(),
new InfluxDBSettings("influx", new Uri("http://localhost")), policy, httpMessageHandlerMock.Object);
foreach (var attempt in Enumerable.Range(0, 10))
{
await client.WriteAsync(_payload, CancellationToken.None);
// ReSharper disable ConvertIfStatementToConditionalTernaryExpression
if (attempt <= policy.FailuresBeforeBackoff)
// ReSharper restore ConvertIfStatementToConditionalTernaryExpression
{
httpMessageHandlerMock.Protected()
.Verify <Task <HttpResponseMessage> >("SendAsync", Times.AtLeastOnce(), ItExpr.IsAny <HttpRequestMessage>(),
ItExpr.IsAny <CancellationToken>());
}
else
{
httpMessageHandlerMock.Protected()
.Verify <Task <HttpResponseMessage> >("SendAsync", Times.AtMost(3), ItExpr.IsAny <HttpRequestMessage>(),
ItExpr.IsAny <CancellationToken>());
}
}
}
public async Task should_back_off_when_reached_max_failures_then_retry_after_backoff_period()
{
var httpMessageHandlerMock = new Mock <HttpMessageHandler>();
httpMessageHandlerMock.Protected()
.Setup <Task <HttpResponseMessage> >("SendAsync", ItExpr.IsAny <HttpRequestMessage>(), ItExpr.IsAny <CancellationToken>())
.Returns(Task.FromResult(new HttpResponseMessage(HttpStatusCode.BadRequest)));
var policy = new HttpPolicy {
FailuresBeforeBackoff = 3, BackoffPeriod = TimeSpan.FromSeconds(1)
};
var client = new DefaultLineProtocolClient(new LoggerFactory(),
new InfluxDBSettings("influx", new Uri("http://localhost")), policy, httpMessageHandlerMock.Object);
foreach (var attempt in Enumerable.Range(0, 10))
{
await client.WriteAsync(_payload, CancellationToken.None);
if (attempt <= policy.FailuresBeforeBackoff)
{
httpMessageHandlerMock.Protected()
.Verify <Task <HttpResponseMessage> >("SendAsync", Times.AtLeastOnce(), ItExpr.IsAny <HttpRequestMessage>(),
ItExpr.IsAny <CancellationToken>());
}
else
{
httpMessageHandlerMock.Protected()
.Verify <Task <HttpResponseMessage> >("SendAsync", Times.AtMost(3), ItExpr.IsAny <HttpRequestMessage>(),
ItExpr.IsAny <CancellationToken>());
}
}
await Task.Delay(policy.BackoffPeriod);
httpMessageHandlerMock = new Mock <HttpMessageHandler>();
httpMessageHandlerMock.Protected()
.Setup <Task <HttpResponseMessage> >("SendAsync", ItExpr.IsAny <HttpRequestMessage>(), ItExpr.IsAny <CancellationToken>())
.Returns(Task.FromResult(new HttpResponseMessage(HttpStatusCode.OK)));
client = new DefaultLineProtocolClient(new LoggerFactory(),
new InfluxDBSettings("influx", new Uri("http://localhost")), policy, httpMessageHandlerMock.Object);
var response = await client.WriteAsync(_payload, CancellationToken.None);
response.Success.Should().BeTrue();
}
public IMetricReporter CreateMetricReporter(string name, ILoggerFactory loggerFactory)
{
var lineProtocolClient = new DefaultLineProtocolClient(
loggerFactory,
_settings.InfluxDbSettings,
_settings.HttpPolicy);
var payloadBuilder = new LineProtocolPayloadBuilder(_settings.DataKeys, _settings.MetricNameFormatter);
return(new ReportRunner <LineProtocolPayload>(
async p =>
{
var result = await lineProtocolClient.WriteAsync(p.Payload());
return result.Success;
},
payloadBuilder,
_settings.ReportInterval,
name,
loggerFactory));
}
