public async Task ReportMetricAsync_InputDoesNotContainMeasuredMetric_ThrowsException()
{
// Arrange
var metricName = BogusGenerator.Name.FirstName();
var metricDescription = BogusGenerator.Lorem.Sentence();
var statsDPublisherMock = new Mock <IStatsDPublisher>();
var metricSink = new StatsdMetricSink(statsDPublisherMock.Object, NullLogger <StatsdMetricSink> .Instance);
// Act & Assert
// ReSharper disable once ExpressionIsAlwaysNull
await Assert.ThrowsAsync <ArgumentNullException>(() => metricSink.ReportMetricAsync(metricName, metricDescription, null));
}
public async Task ReportMetricAsync_InputDoesNotContainMetricName_ThrowsException(string metricName)
{
// Arrange
var metricDescription = BogusGenerator.Lorem.Sentence();
var metricValue = BogusGenerator.Random.Double();
var scrapeResult = ScrapeResultGenerator.Generate(metricValue);
var statsDPublisherMock = new Mock <IStatsDPublisher>();
var metricSink = new StatsdMetricSink(statsDPublisherMock.Object, NullLogger <StatsdMetricSink> .Instance);
// Act & Assert
// ReSharper disable once ExpressionIsAlwaysNull
await Assert.ThrowsAsync <ArgumentException>(() => metricSink.ReportMetricAsync(metricName, metricDescription, scrapeResult));
}
public async Task ReportMetricAsync_InputDoesNotContainMetricDescription_Succeeds(string metricDescription)
{
// Arrange
var metricName = _bogus.Name.FirstName();
var metricValue = _bogus.Random.Double();
var measuredMetric = MeasuredMetric.CreateWithoutDimension(metricValue);
var statsDPublisherMock = new Mock <IStatsDPublisher>();
var metricSink = new StatsdMetricSink(statsDPublisherMock.Object, NullLogger <StatsdMetricSink> .Instance);
// Act & Assert
// ReSharper disable once ExpressionIsAlwaysNull
await metricSink.ReportMetricAsync(metricName, metricDescription, measuredMetric);
}
public async Task ReportMetricAsync_InputDoesNotContainMetricName_ThrowsException(string metricName)
{
// Arrange
var metricDescription = _bogus.Lorem.Sentence();
var metricValue = _bogus.Random.Double();
var measuredMetric = MeasuredMetric.CreateWithoutDimension(metricValue);
var statsDPublisherMock = new Mock <IStatsDPublisher>();
var metricSink = new StatsdMetricSink(statsDPublisherMock.Object, NullLogger <StatsdMetricSink> .Instance);
// Act & Assert
// ReSharper disable once ExpressionIsAlwaysNull
await Assert.ThrowsAsync <ArgumentException>(() => metricSink.ReportMetricAsync(metricName, metricDescription, measuredMetric));
}
public async Task ReportMetricAsync_GetsValidInputWithMetricValue_SuccessfullyWritesMetric()
{
// Arrange
var metricName = _bogus.Name.FirstName();
var metricDescription = _bogus.Lorem.Sentence();
var metricValue = _bogus.Random.Double();
var measuredMetric = MeasuredMetric.CreateWithoutDimension(metricValue);
var statsDPublisherMock = new Mock <IStatsDPublisher>();
var metricSink = new StatsdMetricSink(statsDPublisherMock.Object, NullLogger <StatsdMetricSink> .Instance);
// Act
await metricSink.ReportMetricAsync(metricName, metricDescription, measuredMetric);
// Assert
statsDPublisherMock.Verify(mock => mock.Gauge(metricValue, metricName), Times.Once());
}
public async Task ReportMetricAsync_GetsValidInputWithoutMetricValue_SuccessfullyWritesMetricWithDefault()
{
// Arrange
const double expectedDefaultValue = 0;
var metricName = _bogus.Name.FirstName();
var metricDescription = _bogus.Lorem.Sentence();
double? metricValue = null;
// ReSharper disable once ExpressionIsAlwaysNull
var measuredMetric = MeasuredMetric.CreateWithoutDimension(metricValue);
var statsDPublisherMock = new Mock <IStatsDPublisher>();
var metricSink = new StatsdMetricSink(statsDPublisherMock.Object, NullLogger <StatsdMetricSink> .Instance);
// Act
await metricSink.ReportMetricAsync(metricName, metricDescription, measuredMetric);
// Assert
statsDPublisherMock.Verify(mock => mock.Gauge(expectedDefaultValue, metricName), Times.Once());
}
public async Task ReportMetricAsync_WriteToStatsDSink_Succeeds()
{
// Arrange
var metricName = BogusGenerator.Name.FirstName();
var metricDescription = BogusGenerator.Lorem.Sentence();
var metricValue = BogusGenerator.Random.Double();
var scrapeResult = ScrapeResultGenerator.Generate(metricValue);
var statsDPublisherMock = new Mock <IStatsDPublisher>();
var statsdMetricSink = new StatsdMetricSink(statsDPublisherMock.Object, NullLogger <StatsdMetricSink> .Instance);
var metricSinkWriter = new MetricSinkWriter(new List <IMetricSink> {
statsdMetricSink
}, NullLogger <MetricSinkWriter> .Instance);
// Act
await metricSinkWriter.ReportMetricAsync(metricName, metricDescription, scrapeResult);
// Assert
statsDPublisherMock.Verify(mock => mock.Gauge(metricValue, metricName), Times.Once());
}
