1 package metrics
2
3 import "testing"
4
5 func BenchmarkCounter(b *testing.B) {
6 c := NewCounter()
7 b.ResetTimer()
8 for i := 0; i < b.N; i++ {
9 c.Inc(1)
10 }
11 }
12
13 func TestCounterClear(t *testing.T) {
14 c := NewCounter()
15 c.Inc(1)
16 c.Clear()
17 if count := c.Count(); 0 != count {
18 t.Errorf("c.Count(): 0 != %v\n", count)
19 }
20 }
21
22 func TestCounterDec1(t *testing.T) {
23 c := NewCounter()
24 c.Dec(1)
25 if count := c.Count(); -1 != count {
26 t.Errorf("c.Count(): -1 != %v\n", count)
27 }
28 }
29
30 func TestCounterDec2(t *testing.T) {
31 c := NewCounter()
32 c.Dec(2)
33 if count := c.Count(); -2 != count {
34 t.Errorf("c.Count(): -2 != %v\n", count)
35 }
36 }
37
38 func TestCounterInc1(t *testing.T) {
39 c := NewCounter()
40 c.Inc(1)
41 if count := c.Count(); 1 != count {
42 t.Errorf("c.Count(): 1 != %v\n", count)
43 }
44 }
45
46 func TestCounterInc2(t *testing.T) {
47 c := NewCounter()
48 c.Inc(2)
49 if count := c.Count(); 2 != count {
50 t.Errorf("c.Count(): 2 != %v\n", count)
51 }
52 }
53
54 func TestCounterSnapshot(t *testing.T) {
55 c := NewCounter()
56 c.Inc(1)
57 snapshot := c.Snapshot()
58 c.Inc(1)
59 if count := snapshot.Count(); 1 != count {
60 t.Errorf("c.Count(): 1 != %v\n", count)
61 }
62 }
63
64 func TestCounterZero(t *testing.T) {
65 c := NewCounter()
66 if count := c.Count(); 0 != count {
67 t.Errorf("c.Count(): 0 != %v\n", count)
68 }
69 }
70
71 func TestGetOrRegisterCounter(t *testing.T) {
72 r := NewRegistry()
73 NewRegisteredCounter("foo", r).Inc(47)
74 if c := GetOrRegisterCounter("foo", r); 47 != c.Count() {
75 t.Fatal(c)
76 }
77 }
78
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