Function TestCounterAddInf

prometheus/counter_test.go:146–192

(t *testing.T)

}

func TestCounterAddInf(t *testing.T) {
	now := time.Now()

	counter := NewCounter(CounterOpts{
		Name: "test",
		Help: "test help",
		now:  func() time.Time { return now },
	}).(*counter)

	counter.Inc()
	if expected, got := 0.0, math.Float64frombits(counter.valBits); expected != got {
		t.Errorf("Expected %f, got %f.", expected, got)
	}
	if expected, got := uint64(1), counter.valInt; expected != got {
		t.Errorf("Expected %d, got %d.", expected, got)
	}

	counter.Add(math.Inf(1))
	if expected, got := math.Inf(1), math.Float64frombits(counter.valBits); expected != got {
		t.Errorf("valBits expected %f, got %f.", expected, got)
	}
	if expected, got := uint64(1), counter.valInt; expected != got {
		t.Errorf("valInts expected %d, got %d.", expected, got)
	}

	counter.Inc()
	if expected, got := math.Inf(1), math.Float64frombits(counter.valBits); expected != got {
		t.Errorf("Expected %f, got %f.", expected, got)
	}
	if expected, got := uint64(2), counter.valInt; expected != got {
		t.Errorf("Expected %d, got %d.", expected, got)
	}

	m := &dto.Metric{}
	counter.Write(m)

	expected := &dto.Metric{
		Counter: &dto.Counter{
			Value:            proto.Float64(math.Inf(1)),
			CreatedTimestamp: timestamppb.New(now),
		},
	}

	if !proto.Equal(expected, m) {
		t.Errorf("expected %q, got %q", expected, m)
	}
}

func TestCounterAddLarge(t *testing.T) {
	now := time.Now()