public void GaugeOneDimension()
{
var buffer = new byte[85000];
var metrics = new List <Metric>();
using var meter = new Meter(Utils.GetCurrentMethodName());
using var provider = Sdk.CreateMeterProviderBuilder()
.AddMeter(meter.Name)
.AddInMemoryExporter(metrics)
.Build();
var counter = meter.CreateCounter <long>("test_counter");
counter.Add(123, new KeyValuePair <string, object>("tagKey", "tagValue"));
provider.ForceFlush();
var cursor = PrometheusSerializer.WriteMetric(buffer, 0, metrics[0]);
Assert.Matches(
("^"
+ "# TYPE test_counter counter\n"
+ "test_counter{tagKey='tagValue'} 123 \\d+\n"
+ "$").Replace('\'', '"'),
Encoding.UTF8.GetString(buffer, 0, cursor));
}
public void GaugeZeroDimensionWithDescription()
{
var buffer = new byte[85000];
var metrics = new List <Metric>();
using var meter = new Meter(Utils.GetCurrentMethodName());
using var provider = Sdk.CreateMeterProviderBuilder()
.AddMeter(meter.Name)
.AddInMemoryExporter(metrics)
.Build();
meter.CreateObservableGauge("test_gauge", () => 123, description: "Hello, world!");
provider.ForceFlush();
var cursor = PrometheusSerializer.WriteMetric(buffer, 0, metrics[0]);
Assert.Matches(
("^"
+ "# HELP test_gauge Hello, world!\n"
+ "# TYPE test_gauge gauge\n"
+ "test_gauge 123 \\d+\n"
+ "$").Replace('\'', '"'),
Encoding.UTF8.GetString(buffer, 0, cursor));
}
public void WriteMetric()
{
for (int i = 0; i < this.NumberOfSerializeCalls; i++)
{
int cursor = 0;
foreach (var metric in this.metrics)
{
cursor = PrometheusSerializer.WriteMetric(this.buffer, cursor, metric);
}
}
}
