public async Task LinearHistogram_metrics_are_exposed_correctly()
{
var metrics = new PrometheusMetrics();
var histogram = metrics.Histogram()
.LinearBuckets(-10, 10, 12)
.Name("test_histogram")
.Help("This is the help")
.Register();
histogram.Observe(21);
var memstream = new MemoryStream();
await metrics.Expose(memstream);
var lines = UTF8.GetString(memstream.ToArray()).Split('\n');
Assert.Equal(1, lines.Count(s => s == "# HELP test_histogram This is the help"));
Assert.Equal(1, lines.Count(s => s == "# TYPE test_histogram histogram"));
Assert.Equal(1, lines.Count(s => s == "test_histogram_bucket{le=\"-10\"} 0"));
Assert.Equal(1, lines.Count(s => s == "test_histogram_bucket{le=\"0\"} 0"));
Assert.Equal(1, lines.Count(s => s == "test_histogram_bucket{le=\"10\"} 0"));
Assert.Equal(1, lines.Count(s => s == "test_histogram_bucket{le=\"20\"} 0"));
Assert.Equal(1, lines.Count(s => s == "test_histogram_bucket{le=\"30\"} 1"));
Assert.Equal(1, lines.Count(s => s == "test_histogram_bucket{le=\"40\"} 1"));
Assert.Equal(1, lines.Count(s => s == "test_histogram_bucket{le=\"50\"} 1"));
Assert.Equal(1, lines.Count(s => s == "test_histogram_bucket{le=\"60\"} 1"));
Assert.Equal(1, lines.Count(s => s == "test_histogram_bucket{le=\"70\"} 1"));
Assert.Equal(1, lines.Count(s => s == "test_histogram_bucket{le=\"80\"} 1"));
Assert.Equal(1, lines.Count(s => s == "test_histogram_bucket{le=\"90\"} 1"));
Assert.Equal(1, lines.Count(s => s == "test_histogram_bucket{le=\"100\"} 1"));
Assert.Equal(1, lines.Count(s => s == "test_histogram_bucket{le=\"+Inf\"} 1"));
Assert.Equal(1, lines.Count(s => s == "test_histogram_sum 21"));
Assert.Equal(1, lines.Count(s => s == "test_histogram_count 1"));
histogram.Observe(51);
memstream = new MemoryStream();
await metrics.Expose(memstream);
lines = UTF8.GetString(memstream.ToArray()).Split('\n');
Assert.Equal(1, lines.Count(s => s == "# HELP test_histogram This is the help"));
Assert.Equal(1, lines.Count(s => s == "# TYPE test_histogram histogram"));
Assert.Equal(1, lines.Count(s => s == "test_histogram_bucket{le=\"-10\"} 0"));
Assert.Equal(1, lines.Count(s => s == "test_histogram_bucket{le=\"0\"} 0"));
Assert.Equal(1, lines.Count(s => s == "test_histogram_bucket{le=\"10\"} 0"));
Assert.Equal(1, lines.Count(s => s == "test_histogram_bucket{le=\"20\"} 0"));
Assert.Equal(1, lines.Count(s => s == "test_histogram_bucket{le=\"30\"} 1"));
Assert.Equal(1, lines.Count(s => s == "test_histogram_bucket{le=\"40\"} 1"));
Assert.Equal(1, lines.Count(s => s == "test_histogram_bucket{le=\"50\"} 1"));
Assert.Equal(1, lines.Count(s => s == "test_histogram_bucket{le=\"60\"} 2"));
Assert.Equal(1, lines.Count(s => s == "test_histogram_bucket{le=\"70\"} 2"));
Assert.Equal(1, lines.Count(s => s == "test_histogram_bucket{le=\"80\"} 2"));
Assert.Equal(1, lines.Count(s => s == "test_histogram_bucket{le=\"90\"} 2"));
Assert.Equal(1, lines.Count(s => s == "test_histogram_bucket{le=\"100\"} 2"));
Assert.Equal(1, lines.Count(s => s == "test_histogram_bucket{le=\"+Inf\"} 2"));
Assert.Equal(1, lines.Count(s => s == "test_histogram_sum 72"));
Assert.Equal(1, lines.Count(s => s == "test_histogram_count 2"));
}
public async Task ExponentialHistogram_metrics_are_exposed_correctly()
{
var metrics = new PrometheusMetrics();
var histogram = metrics.Histogram()
.ExponentialBuckets(1, 2, 8)
.Name("test_histogram")
.Help("This is the help")
.Register();
histogram.Observe(21);
var memstream = new MemoryStream();
await metrics.Expose(memstream);
var lines = UTF8.GetString(memstream.ToArray()).Split('\n');
Assert.Equal(1, lines.Count(s => s == "# HELP test_histogram This is the help"));
Assert.Equal(1, lines.Count(s => s == "# TYPE test_histogram histogram"));
Assert.Equal(1, lines.Count(s => s == "test_histogram_bucket{le=\"1\"} 0"));
Assert.Equal(1, lines.Count(s => s == "test_histogram_bucket{le=\"2\"} 0"));
Assert.Equal(1, lines.Count(s => s == "test_histogram_bucket{le=\"4\"} 0"));
Assert.Equal(1, lines.Count(s => s == "test_histogram_bucket{le=\"8\"} 0"));
Assert.Equal(1, lines.Count(s => s == "test_histogram_bucket{le=\"16\"} 0"));
Assert.Equal(1, lines.Count(s => s == "test_histogram_bucket{le=\"32\"} 1"));
Assert.Equal(1, lines.Count(s => s == "test_histogram_bucket{le=\"64\"} 1"));
Assert.Equal(1, lines.Count(s => s == "test_histogram_bucket{le=\"128\"} 1"));
Assert.Equal(1, lines.Count(s => s == "test_histogram_bucket{le=\"+Inf\"} 1"));
Assert.Equal(1, lines.Count(s => s == "test_histogram_sum 21"));
Assert.Equal(1, lines.Count(s => s == "test_histogram_count 1"));
histogram.Observe(51);
memstream = new MemoryStream();
await metrics.Expose(memstream);
lines = UTF8.GetString(memstream.ToArray()).Split('\n');
Assert.Equal(1, lines.Count(s => s == "# HELP test_histogram This is the help"));
Assert.Equal(1, lines.Count(s => s == "# TYPE test_histogram histogram"));
Assert.Equal(1, lines.Count(s => s == "test_histogram_bucket{le=\"1\"} 0"));
Assert.Equal(1, lines.Count(s => s == "test_histogram_bucket{le=\"2\"} 0"));
Assert.Equal(1, lines.Count(s => s == "test_histogram_bucket{le=\"4\"} 0"));
Assert.Equal(1, lines.Count(s => s == "test_histogram_bucket{le=\"8\"} 0"));
Assert.Equal(1, lines.Count(s => s == "test_histogram_bucket{le=\"16\"} 0"));
Assert.Equal(1, lines.Count(s => s == "test_histogram_bucket{le=\"32\"} 1"));
Assert.Equal(1, lines.Count(s => s == "test_histogram_bucket{le=\"64\"} 2"));
Assert.Equal(1, lines.Count(s => s == "test_histogram_bucket{le=\"128\"} 2"));
Assert.Equal(1, lines.Count(s => s == "test_histogram_bucket{le=\"+Inf\"} 2"));
Assert.Equal(1, lines.Count(s => s == "test_histogram_sum 72"));
Assert.Equal(1, lines.Count(s => s == "test_histogram_count 2"));
}
public async Task LabelledHistogram_metrics_are_exposed_correctly_in_cultures_with_non_point_decimal_separator()
{
var metrics = new PrometheusMetrics();
var histogram = metrics.Histogram()
.Name("test_histogram")
.Buckets(-1.1, 2.2, 3.14159, 9)
.LabelNames("dolor")
.Help("Ut enim ad minima veniam, quis nostrum exercitationem ullam corporis suscipit laboriosam")
.Register();
histogram.Labels("sit amet").Observe(-0.3);
histogram.Labels("sit amet").Observe(2.99);
var memstream = new MemoryStream();
await metrics.Expose(memstream);
var lines = UTF8.GetString(memstream.ToArray()).Split('\n');
Assert.Equal(1, lines.Count(s => s == "# HELP test_histogram Ut enim ad minima veniam, quis nostrum exercitationem ullam corporis suscipit laboriosam"));
Assert.Equal(1, lines.Count(s => s == "# TYPE test_histogram histogram"));
Assert.Equal(1, lines.Count(s => s == "test_histogram_bucket{dolor=\"sit amet\", le=\"-1.1\"} 0"));
Assert.Equal(1, lines.Count(s => s == "test_histogram_bucket{dolor=\"sit amet\", le=\"2.2\"} 1"));
Assert.Equal(1, lines.Count(s => s == "test_histogram_bucket{dolor=\"sit amet\", le=\"3.14159\"} 2"));
Assert.Equal(1, lines.Count(s => s == "test_histogram_bucket{dolor=\"sit amet\", le=\"9\"} 2"));
Assert.Equal(1, lines.Count(s => s == "test_histogram_bucket{dolor=\"sit amet\", le=\"+Inf\"} 2"));
Assert.Equal(1, lines.Count(s => s == "test_histogram_sum{dolor=\"sit amet\"} 2.69"));
Assert.Equal(1, lines.Count(s => s == "test_histogram_count{dolor=\"sit amet\"} 2"));
}
public async Task Histogram_metrics_are_exposed_correctly_in_cultures_with_non_point_decimal_separator()
{
var metrics = new PrometheusMetrics();
var histogram = metrics.Histogram()
.Name("test_histogram")
.Buckets(-1.1, 2.2, 3.14159, 9)
.Help("Nemo enim ipsam voluptatem quia voluptas sit aspernatur aut odit aut fugit")
.Register();
histogram.Observe(-0.3);
histogram.Observe(2.99);
var memstream = new MemoryStream();
await metrics.Expose(memstream);
var lines = UTF8.GetString(memstream.ToArray()).Split('\n');
Assert.Equal(1, lines.Count(s => s == "# HELP test_histogram Nemo enim ipsam voluptatem quia voluptas sit aspernatur aut odit aut fugit"));
Assert.Equal(1, lines.Count(s => s == "# TYPE test_histogram histogram"));
Assert.Equal(1, lines.Count(s => s == "test_histogram_bucket{le=\"-1.1\"} 0"));
Assert.Equal(1, lines.Count(s => s == "test_histogram_bucket{le=\"2.2\"} 1"));
Assert.Equal(1, lines.Count(s => s == "test_histogram_bucket{le=\"3.14159\"} 2"));
Assert.Equal(1, lines.Count(s => s == "test_histogram_bucket{le=\"9\"} 2"));
Assert.Equal(1, lines.Count(s => s == "test_histogram_bucket{le=\"+Inf\"} 2"));
Assert.Equal(1, lines.Count(s => s == "test_histogram_sum 2.69"));
Assert.Equal(1, lines.Count(s => s == "test_histogram_count 2"));
}
public async Task LabelledGauge_replacevalue_replaces_obsoleted_values_and_new_values_are_exposed_correctly()
{
var metrics = new PrometheusMetrics();
var gauge = metrics.Gauge()
.Name("test_gauge_total")
.Help("This is the help")
.LabelNames("method")
.Register();
gauge.Labels("GET").Value = 974;
gauge.Labels("POST").Value = 823;
gauge.ReplaceMetricValues(new Dictionary <string[], double>()
{
{ new[] { "POST" }, 151 },
{ new[] { "HEAD" }, 673 },
});
var memstream = new MemoryStream();
await metrics.Expose(memstream);
var lines = UTF8.GetString(memstream.ToArray()).Split('\n');
Assert.Equal(1, lines.Count(s => s == "# HELP test_gauge_total This is the help"));
Assert.Equal(1, lines.Count(s => s == "# TYPE test_gauge_total gauge"));
Assert.Equal(1, lines.Count(s => Regex.IsMatch(s, "test_gauge_total{method=\"POST\"} 151 [0-9]+")));
Assert.Equal(1, lines.Count(s => Regex.IsMatch(s, "test_gauge_total{method=\"HEAD\"} 673 [0-9]+")));
Assert.Equal(0, lines.Count(s => Regex.IsMatch(s, "test_gauge_total{method=\"GET\"} 974 [0-9]+")));
}
public async Task Gauge_metrics_are_exposed_correctly()
{
var metrics = new PrometheusMetrics();
var gauge = metrics.Gauge()
.Name("test_gauge_total")
.Help("This is the help")
.Register();
gauge.Value = 9374;
var memstream = new MemoryStream();
await metrics.Expose(memstream);
var lines = UTF8.GetString(memstream.ToArray()).Split('\n');
Assert.Equal(1, lines.Count(s => s == "# HELP test_gauge_total This is the help"));
Assert.Equal(1, lines.Count(s => s == "# TYPE test_gauge_total gauge"));
Assert.Equal(1, lines.Count(s => Regex.IsMatch(s, "test_gauge_total 9374 [0-9]+")));
}
public async Task Counter_metrics_are_exposed_correctly_when_requested_without_timestamp()
{
var metrics = new PrometheusMetrics();
var counter = metrics.Counter()
.Name("test_counter_total")
.Help("This is the help")
.Register();
counter.Increment();
var memstream = new MemoryStream();
await metrics.Expose(memstream, ExposeOptions.NoTimestamp);
var lines = UTF8.GetString(memstream.ToArray()).Split('\n');
Assert.Equal(1, lines.Count(s => s == "# HELP test_counter_total This is the help"));
Assert.Equal(1, lines.Count(s => s == "# TYPE test_counter_total counter"));
Assert.Equal(1, lines.Count(s => Regex.IsMatch(s, "test_counter_total 1")));
}
public async Task Gauge_metrics_are_exposed_correctly_in_cultures_with_non_point_decimal_separator()
{
var metrics = new PrometheusMetrics();
var gauge = metrics.Gauge()
.Name("test_gauge_total")
.Help("Duis aute irure dolor in reprehenderit in voluptate velit esse")
.Register();
gauge.Value = 3.14159;
var memstream = new MemoryStream();
await metrics.Expose(memstream);
var lines = UTF8.GetString(memstream.ToArray()).Split('\n');
Assert.Equal(1, lines.Count(s => s == "# HELP test_gauge_total Duis aute irure dolor in reprehenderit in voluptate velit esse"));
Assert.Equal(1, lines.Count(s => s == "# TYPE test_gauge_total gauge"));
Assert.Equal(1, lines.Count(s => Regex.IsMatch(s, "test_gauge_total 3.14159 [0-9]+")));
}
public async Task Counter_metrics_are_exposed_correctly_in_cultures_with_non_point_decimal_separator()
{
var metrics = new PrometheusMetrics();
var counter = metrics.Counter()
.Name("test_counter_total")
.Help("Quis autem vel eum iure reprehenderit qui in ea voluptate velit esse quam nihil molestiae consequatur")
.Register();
counter.Increment(3.14159);
var memstream = new MemoryStream();
await metrics.Expose(memstream);
var lines = UTF8.GetString(memstream.ToArray()).Split('\n');
Assert.Equal(1, lines.Count(s => s == "# HELP test_counter_total Quis autem vel eum iure reprehenderit qui in ea voluptate velit esse quam nihil molestiae consequatur"));
Assert.Equal(1, lines.Count(s => s == "# TYPE test_counter_total counter"));
Assert.Equal(1, lines.Count(s => Regex.IsMatch(s, "test_counter_total 3.14159 [0-9]+")));
}
public async Task LabelledGauge_metrics_are_exposed_correctly_in_cultures_with_non_point_decimal_separator()
{
var metrics = new PrometheusMetrics();
var gauge = metrics.Gauge()
.Name("test_labelled_gauge_total")
.LabelNames("lorem")
.Help("Sed ut perspiciatis unde omnis iste natus error sit voluptatem accusantium doloremque laudantium")
.Register();
gauge.Labels("ipsum").Value = 2.71828;
var memstream = new MemoryStream();
await metrics.Expose(memstream);
var lines = UTF8.GetString(memstream.ToArray()).Split('\n');
Assert.Equal(1, lines.Count(s => s == "# HELP test_labelled_gauge_total Sed ut perspiciatis unde omnis iste natus error sit voluptatem accusantium doloremque laudantium"));
Assert.Equal(1, lines.Count(s => s == "# TYPE test_labelled_gauge_total gauge"));
Assert.Equal(1, lines.Count(s => Regex.IsMatch(s, "test_labelled_gauge_total{lorem=\"ipsum\"} 2.71828 [0-9]+")));
}
public async Task LabelledCounter_metrics_are_exposed_correctly_in_cultures_with_non_point_decimal_separator()
{
var metrics = new PrometheusMetrics();
var counter = metrics.Counter()
.Name("test_labelled_counter_total")
.LabelNames("consectetur")
.Help("Öt szép szűzlány őrült írót nyúz, avagy kínaiul: 五美麗的處女瘋狂作家去皮")
.Register();
counter.Labels("adipiscing").Increment(2.71828);
var memstream = new MemoryStream();
await metrics.Expose(memstream);
var lines = UTF8.GetString(memstream.ToArray()).Split('\n');
Assert.Equal(1, lines.Count(s => s == "# HELP test_labelled_counter_total Öt szép szűzlány őrült írót nyúz, avagy kínaiul: 五美麗的處女瘋狂作家去皮"));
Assert.Equal(1, lines.Count(s => s == "# TYPE test_labelled_counter_total counter"));
Assert.Equal(1, lines.Count(s => Regex.IsMatch(s, "test_labelled_counter_total{consectetur=\"adipiscing\"} 2.71828 [0-9]+")));
}
public async Task LabelledCounter_metrics_are_exposed_correctly()
{
var metrics = new PrometheusMetrics();
var counter = metrics.Counter()
.Name("test_counter_total")
.Help("This is the help")
.LabelNames("method")
.Register();
counter.Labels("GET").Increment();
counter.Labels("POST").Increment();
counter.Labels("POST").Increment();
var memstream = new MemoryStream();
await metrics.Expose(memstream);
var lines = UTF8.GetString(memstream.ToArray()).Split('\n');
Assert.Equal(1, lines.Count(s => s == "# HELP test_counter_total This is the help"));
Assert.Equal(1, lines.Count(s => s == "# TYPE test_counter_total counter"));
Assert.Equal(1, lines.Count(s => Regex.IsMatch(s, "test_counter_total{method=\"GET\"} 1 [0-9]+")));
Assert.Equal(1, lines.Count(s => Regex.IsMatch(s, "test_counter_total{method=\"POST\"} 2 [0-9]+")));
}
public async Task LabelledCustomHistogram_metrics_are_exposed_correctly()
{
var metrics = new PrometheusMetrics();
var histogram = metrics.Histogram()
.Buckets(2, 3, 4, 12, 31, 243)
.Name("test_histogram")
.Help("This is the help")
.LabelNames("method")
.Register();
histogram.Labels("GET").Observe(11);
histogram.Labels("POST").Observe(21);
var memstream = new MemoryStream();
await metrics.Expose(memstream);
var lines = UTF8.GetString(memstream.ToArray()).Split('\n');
Assert.Equal(1, lines.Count(s => s == "# HELP test_histogram This is the help"));
Assert.Equal(1, lines.Count(s => s == "# TYPE test_histogram histogram"));
Assert.Equal(1, lines.Count(s => s == "test_histogram_bucket{method=\"GET\", le=\"3\"} 0"));
Assert.Equal(1, lines.Count(s => s == "test_histogram_bucket{method=\"GET\", le=\"4\"} 0"));
Assert.Equal(1, lines.Count(s => s == "test_histogram_bucket{method=\"GET\", le=\"12\"} 1"));
Assert.Equal(1, lines.Count(s => s == "test_histogram_bucket{method=\"GET\", le=\"31\"} 1"));
Assert.Equal(1, lines.Count(s => s == "test_histogram_bucket{method=\"GET\", le=\"243\"} 1"));
Assert.Equal(1, lines.Count(s => s == "test_histogram_bucket{method=\"GET\", le=\"+Inf\"} 1"));
Assert.Equal(1, lines.Count(s => s == "test_histogram_sum{method=\"GET\"} 11"));
Assert.Equal(1, lines.Count(s => s == "test_histogram_count{method=\"GET\"} 1"));
Assert.Equal(1, lines.Count(s => s == "# HELP test_histogram This is the help"));
Assert.Equal(1, lines.Count(s => s == "# TYPE test_histogram histogram"));
Assert.Equal(1, lines.Count(s => s == "test_histogram_bucket{method=\"POST\", le=\"3\"} 0"));
Assert.Equal(1, lines.Count(s => s == "test_histogram_bucket{method=\"POST\", le=\"4\"} 0"));
Assert.Equal(1, lines.Count(s => s == "test_histogram_bucket{method=\"POST\", le=\"12\"} 0"));
Assert.Equal(1, lines.Count(s => s == "test_histogram_bucket{method=\"POST\", le=\"31\"} 1"));
Assert.Equal(1, lines.Count(s => s == "test_histogram_bucket{method=\"POST\", le=\"243\"} 1"));
Assert.Equal(1, lines.Count(s => s == "test_histogram_bucket{method=\"POST\", le=\"+Inf\"} 1"));
Assert.Equal(1, lines.Count(s => s == "test_histogram_sum{method=\"POST\"} 21"));
Assert.Equal(1, lines.Count(s => s == "test_histogram_count{method=\"POST\"} 1"));
histogram.Labels("GET").Observe(51);
histogram.Labels("POST").Observe(61);
memstream = new MemoryStream();
await metrics.Expose(memstream);
lines = UTF8.GetString(memstream.ToArray()).Split('\n');
Assert.Equal(1, lines.Count(s => s == "# HELP test_histogram This is the help"));
Assert.Equal(1, lines.Count(s => s == "# TYPE test_histogram histogram"));
Assert.Equal(1, lines.Count(s => s == "test_histogram_bucket{method=\"GET\", le=\"3\"} 0"));
Assert.Equal(1, lines.Count(s => s == "test_histogram_bucket{method=\"GET\", le=\"4\"} 0"));
Assert.Equal(1, lines.Count(s => s == "test_histogram_bucket{method=\"GET\", le=\"12\"} 1"));
Assert.Equal(1, lines.Count(s => s == "test_histogram_bucket{method=\"GET\", le=\"31\"} 1"));
Assert.Equal(1, lines.Count(s => s == "test_histogram_bucket{method=\"GET\", le=\"243\"} 2"));
Assert.Equal(1, lines.Count(s => s == "test_histogram_bucket{method=\"GET\", le=\"+Inf\"} 2"));
Assert.Equal(1, lines.Count(s => s == "test_histogram_sum{method=\"GET\"} 62"));
Assert.Equal(1, lines.Count(s => s == "test_histogram_count{method=\"GET\"} 2"));
Assert.Equal(1, lines.Count(s => s == "# HELP test_histogram This is the help"));
Assert.Equal(1, lines.Count(s => s == "# TYPE test_histogram histogram"));
Assert.Equal(1, lines.Count(s => s == "test_histogram_bucket{method=\"POST\", le=\"3\"} 0"));
Assert.Equal(1, lines.Count(s => s == "test_histogram_bucket{method=\"POST\", le=\"4\"} 0"));
Assert.Equal(1, lines.Count(s => s == "test_histogram_bucket{method=\"POST\", le=\"12\"} 0"));
Assert.Equal(1, lines.Count(s => s == "test_histogram_bucket{method=\"POST\", le=\"31\"} 1"));
Assert.Equal(1, lines.Count(s => s == "test_histogram_bucket{method=\"POST\", le=\"243\"} 2"));
Assert.Equal(1, lines.Count(s => s == "test_histogram_bucket{method=\"POST\", le=\"+Inf\"} 2"));
Assert.Equal(1, lines.Count(s => s == "test_histogram_sum{method=\"POST\"} 82"));
Assert.Equal(1, lines.Count(s => s == "test_histogram_count{method=\"POST\"} 2"));
}
