func checkEmission(t *testing.T, coll string, h handler.Handler, expected bool) {
m := metric.Metric{
Name: "test",
Value: 1,
Dimensions: map[string]string{"collector": coll},
}
writeToHandlers([]handler.Handler{h}, m)
_, ok := h.CollectorEndpoints()[coll]
if !expected && ok {
assert.Fail(t, fmt.Sprintf("Was not expecting a collector channel for %s", coll))
}
if expected && !ok {
assert.Fail(t, fmt.Sprintf("Was expecting a collector channel for %s", coll))
}
}
