gotb/pkg_test.go at master · apokalyptik/gotb · GitHub

1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
package tb

import (
	"testing"
	"time"
)

func TestNoTokens(t *testing.T) {
	tb := new(TokenBucket)
	if tb.Get() {
		t.Errorf("Expected Get to return false, returned true")
	}
	if tb.Peek() {
		t.Errorf("Expected Peek to return false, returned true")
	}
}

func TestSomeTokens(t *testing.T) {
	tb := new(TokenBucket)
	tb.Set(1)
	if false == tb.Peek() {
		t.Errorf("Expected Peek with 1 token to return true, returned false")
	}
	if false == tb.Get() {
		t.Errorf("Expected Get with 1 token to return true, returned false")
	}
	if tb.Get() {
		t.Errorf("Expected Get to return false, returned true")
	}
	if tb.Peek() {
		t.Errorf("Expected Peek to return false, returned true")
	}
}

func TestAddingTokens(t *testing.T) {
	tb := new(TokenBucket)
	tb.Max(5)
	if tb.cur != 0 {
		t.Errorf("Tokens before starting should be 0, was %d", tb.cur)
	}
	err := tb.Start(time.Nanosecond)
	if err != nil {
		t.Errorf("Expected nil error, got %s", err.Error())
	}
	err = tb.Start(time.Nanosecond)
	if err == nil {
		t.Errorf("Expected an error, got nil")
	}
	time.Sleep(time.Millisecond)
	err = tb.Stop()
	if err != nil {
		t.Errorf("Expected nil error, got %s", err.Error())
	}
	err = tb.Stop()
	if err == nil {
		t.Errorf("Expected an error, got nil")
	}
	if tb.cur != 5 {
		t.Errorf("Expected 5 tokens after 10ms at a rate of 1 token/ms, got %d tokens", tb.cur)
	}
	if false == tb.Peek() {
		t.Errorf("Expected Peek with 5 tokens to return true, returned false")
	}
	for i := 0; i < 5; i++ {
		if false == tb.Get() {
			t.Errorf("Expected %d successfull Get()s", i)
		}
	}
	if tb.Get() {
		t.Errorf("Expected Get to return false, returned true")
	}
	if tb.Peek() {
		t.Errorf("Expected Peek to return false, returned true")
	}
	tb.Start(time.Nanosecond)
	time.Sleep(time.Millisecond)
	if false == tb.Peek() {
		t.Errorf("Expected Peek to return true, returned false")
	}

}