summaryrefslogtreecommitdiffstats
path: root/vendor/github.com/armon/go-metrics/statsite_test.go
blob: 92687889bb783493bc8ed611e95903de0e4aca6b (plain)
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
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
141
142
143
144
145
146
147
148
149
150
151
152
153
154
155
156
157
158
159
160
161
162
163
164
165
166
167
168
169
170
171
package metrics

import (
	"bufio"
	"net"
	"net/url"
	"strings"
	"testing"
	"time"
)

func acceptConn(addr string) net.Conn {
	ln, _ := net.Listen("tcp", addr)
	conn, _ := ln.Accept()
	return conn
}

func TestStatsite_Flatten(t *testing.T) {
	s := &StatsiteSink{}
	flat := s.flattenKey([]string{"a", "b", "c", "d"})
	if flat != "a.b.c.d" {
		t.Fatalf("Bad flat")
	}
}

func TestStatsite_PushFullQueue(t *testing.T) {
	q := make(chan string, 1)
	q <- "full"

	s := &StatsiteSink{metricQueue: q}
	s.pushMetric("omit")

	out := <-q
	if out != "full" {
		t.Fatalf("bad val %v", out)
	}

	select {
	case v := <-q:
		t.Fatalf("bad val %v", v)
	default:
	}
}

func TestStatsite_Conn(t *testing.T) {
	addr := "localhost:7523"
	done := make(chan bool)
	go func() {
		conn := acceptConn(addr)
		reader := bufio.NewReader(conn)

		line, err := reader.ReadString('\n')
		if err != nil {
			t.Fatalf("unexpected err %s", err)
		}
		if line != "gauge.val:1.000000|g\n" {
			t.Fatalf("bad line %s", line)
		}

		line, err = reader.ReadString('\n')
		if err != nil {
			t.Fatalf("unexpected err %s", err)
		}
		if line != "gauge_labels.val.label:2.000000|g\n" {
			t.Fatalf("bad line %s", line)
		}

		line, err = reader.ReadString('\n')
		if err != nil {
			t.Fatalf("unexpected err %s", err)
		}
		if line != "key.other:3.000000|kv\n" {
			t.Fatalf("bad line %s", line)
		}

		line, err = reader.ReadString('\n')
		if err != nil {
			t.Fatalf("unexpected err %s", err)
		}
		if line != "counter.me:4.000000|c\n" {
			t.Fatalf("bad line %s", line)
		}

		line, err = reader.ReadString('\n')
		if err != nil {
			t.Fatalf("unexpected err %s", err)
		}
		if line != "counter_labels.me.label:5.000000|c\n" {
			t.Fatalf("bad line %s", line)
		}

		line, err = reader.ReadString('\n')
		if err != nil {
			t.Fatalf("unexpected err %s", err)
		}
		if line != "sample.slow_thingy:6.000000|ms\n" {
			t.Fatalf("bad line %s", line)
		}

		line, err = reader.ReadString('\n')
		if err != nil {
			t.Fatalf("unexpected err %s", err)
		}
		if line != "sample_labels.slow_thingy.label:7.000000|ms\n" {
			t.Fatalf("bad line %s", line)
		}

		conn.Close()
		done <- true
	}()
	s, err := NewStatsiteSink(addr)
	if err != nil {
		t.Fatalf("bad error")
	}

	s.SetGauge([]string{"gauge", "val"}, float32(1))
	s.SetGaugeWithLabels([]string{"gauge_labels", "val"}, float32(2), []Label{{"a", "label"}})
	s.EmitKey([]string{"key", "other"}, float32(3))
	s.IncrCounter([]string{"counter", "me"}, float32(4))
	s.IncrCounterWithLabels([]string{"counter_labels", "me"}, float32(5), []Label{{"a", "label"}})
	s.AddSample([]string{"sample", "slow thingy"}, float32(6))
	s.AddSampleWithLabels([]string{"sample_labels", "slow thingy"}, float32(7), []Label{{"a", "label"}})

	select {
	case <-done:
		s.Shutdown()
	case <-time.After(3 * time.Second):
		t.Fatalf("timeout")
	}
}

func TestNewStatsiteSinkFromURL(t *testing.T) {
	for _, tc := range []struct {
		desc       string
		input      string
		expectErr  string
		expectAddr string
	}{
		{
			desc:       "address is populated",
			input:      "statsd://statsd.service.consul",
			expectAddr: "statsd.service.consul",
		},
		{
			desc:       "address includes port",
			input:      "statsd://statsd.service.consul:1234",
			expectAddr: "statsd.service.consul:1234",
		},
	} {
		t.Run(tc.desc, func(t *testing.T) {
			u, err := url.Parse(tc.input)
			if err != nil {
				t.Fatalf("error parsing URL: %s", err)
			}
			ms, err := NewStatsiteSinkFromURL(u)
			if tc.expectErr != "" {
				if !strings.Contains(err.Error(), tc.expectErr) {
					t.Fatalf("expected err: %q, to contain: %q", err, tc.expectErr)
				}
			} else {
				if err != nil {
					t.Fatalf("unexpected err: %s", err)
				}
				is := ms.(*StatsiteSink)
				if is.addr != tc.expectAddr {
					t.Fatalf("expected addr %s, got: %s", tc.expectAddr, is.addr)
				}
			}
		})
	}
}