func TestGauge(t *testing.T) {
s := httptest.NewServer(stdprometheus.UninstrumentedHandler())
defer s.Close()
scrape := func() string {
resp, _ := http.Get(s.URL)
buf, _ := ioutil.ReadAll(resp.Body)
return string(buf)
}
namespace, subsystem, name := "aaa", "bbb", "ccc"
re := regexp.MustCompile(namespace + `_` + subsystem + `_` + name + `{foo="bar"} ([0-9\.]+)`)
gauge := NewGaugeFrom(stdprometheus.GaugeOpts{
Namespace: namespace,
Subsystem: subsystem,
Name: name,
Help: "This is a different help string.",
}, []string{"foo"}).With("foo", "bar")
value := func() float64 {
matches := re.FindStringSubmatch(scrape())
f, _ := strconv.ParseFloat(matches[1], 64)
return f
}
if err := teststat.TestGauge(gauge, value); err != nil {
t.Fatal(err)
}
}
func TestGauge(t *testing.T) {
prefix, name := "ghi.", "jkl"
label, value := "xyz", "abc" // ignored
regex := `^` + prefix + name + `:([0-9\.]+)\|g$`
s := New(prefix, log.NewNopLogger())
gauge := s.NewGauge(name).With(label, value)
valuef := teststat.LastLine(s, regex)
if err := teststat.TestGauge(gauge, valuef); err != nil {
t.Fatal(err)
}
}
func TestGauge(t *testing.T) {
in := New(map[string]string{"foo": "alpha"}, influxdb.BatchPointsConfig{}, log.NewNopLogger())
re := regexp.MustCompile(`influx_gauge,foo=alpha value=([0-9\.]+) [0-9]+`)
gauge := in.NewGauge("influx_gauge")
value := func() float64 {
client := &bufWriter{}
in.WriteTo(client)
match := re.FindStringSubmatch(client.buf.String())
f, _ := strconv.ParseFloat(match[1], 64)
return f
}
if err := teststat.TestGauge(gauge, value); err != nil {
t.Fatal(err)
}
}
func TestGauge(t *testing.T) {
const name = "def"
var val float64
s := httptest.NewServer(http.HandlerFunc(func(w http.ResponseWriter, r *http.Request) {
var res map[string]struct {
Value string `json:"_value"`
}
json.NewDecoder(r.Body).Decode(&res)
val, _ = strconv.ParseFloat(res[name].Value, 64)
}))
defer s.Close()
m := newCirconusMetrics(s.URL)
gauge := New(m).NewGauge(name).With("label values", "not supported")
value := func() float64 { m.Flush(); return val }
if err := teststat.TestGauge(gauge, value); err != nil {
t.Fatal(err)
}
}