metrics_test.go


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package main

import (
    "testing"
    "strings"
    "fmt"
)

func TestLargeMetrics(t *testing.T){
    first := rune(0x41)
    last := rune(0x5a)
    omb := strings.Builder{}
    for r1 := first; r1 <= last; r1++{
        for r2 := first; r2 <= last; r2++{
            name := strings.Builder{}
            name.WriteString("test_metric_name_")
            name.WriteRune(r1)
            name.WriteRune(r2)
            omb.WriteString("# TYPE ")
            omb.WriteString(name.String())
            omb.WriteString(" gauge\n")
            for i := 0; i < 16; i++{
                omb.WriteString(name.String())
                omb.WriteString(fmt.Sprintf("{index=\"%d\"} 1\n", i))
            }
        }
    }
    omb.WriteString("# EOF\n")

    m, e := ParseMetrics(([]byte)(omb.String()), "application/openmetrics-text")
    if e != nil{
        t.Error(e)
    }
    m.String()
}