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|
package statsdtest
import (
"bytes"
"reflect"
"testing"
)
type parsingTestCase struct {
name string
sent [][]byte
expected Stats
}
var (
badStatNameOnly = []byte("foo.bar.baz:")
bsnoStat = Stat{
Raw: badStatNameOnly,
Stat: "foo.bar.baz",
Parsed: false,
}
gaugeWithoutRate = []byte("foo.bar.baz:1.000|g")
gworStat = Stat{
Raw: gaugeWithoutRate,
Stat: "foo.bar.baz",
Value: "1.000",
Tag: "g",
Parsed: true,
}
counterWithRate = []byte("foo.bar.baz:1.000|c|@0.75")
cwrStat = Stat{
Raw: counterWithRate,
Stat: "foo.bar.baz",
Value: "1.000",
Tag: "c",
Rate: "0.75",
Parsed: true,
}
stringStat = []byte(":some string value|s")
sStat = Stat{
Raw: stringStat,
Stat: "",
Value: "some string value",
Tag: "s",
Parsed: true,
}
badValue = []byte("asoentuh")
bvStat = Stat{Raw: badValue}
testCases = []parsingTestCase{
{name: "no stat data",
sent: [][]byte{badStatNameOnly},
expected: Stats{bsnoStat}},
{name: "trivial case",
sent: [][]byte{gaugeWithoutRate},
expected: Stats{gworStat}},
{name: "multiple simple",
sent: [][]byte{gaugeWithoutRate, counterWithRate},
expected: Stats{gworStat, cwrStat}},
{name: "mixed good and bad",
sent: [][]byte{badValue, badValue, stringStat, badValue, counterWithRate, badValue},
expected: Stats{bvStat, bvStat, sStat, bvStat, cwrStat, bvStat}},
}
)
func TestParseBytes(t *testing.T) {
for _, tc := range testCases {
got := ParseStats(bytes.Join(tc.sent, []byte("\n")))
want := tc.expected
if !reflect.DeepEqual(got, want) {
t.Errorf("%s: got: %+v, want: %+v", tc.name, got, want)
}
}
}
func TestStatsUnparsed(t *testing.T) {
start := Stats{bsnoStat, gworStat, bsnoStat, bsnoStat, cwrStat}
got := start.Unparsed()
want := Stats{bsnoStat, bsnoStat, bsnoStat}
if !reflect.DeepEqual(got, want) {
t.Errorf("got: %+v, want: %+v", got, want)
}
}
func TestStatsCollectNamed(t *testing.T) {
type test struct {
name string
start Stats
want Stats
matchOn string
}
cases := []test{
{"No matches",
Stats{bsnoStat, cwrStat},
nil,
"foo"},
{"One match",
Stats{bsnoStat, Stat{Stat: "foo"}, cwrStat},
Stats{Stat{Stat: "foo"}},
"foo"},
{"Two matches",
Stats{bsnoStat, Stat{Stat: "foo"}, cwrStat},
Stats{bsnoStat, cwrStat},
"foo.bar.baz"},
}
for _, c := range cases {
got := c.start.CollectNamed(c.matchOn)
if !reflect.DeepEqual(got, c.want) {
t.Errorf("%s: got: %+v, want: %+v", c.name, got, c.want)
}
}
}
func TestStatsCollect(t *testing.T) {
type test struct {
name string
start Stats
want Stats
pred func(Stat) bool
}
cases := []test{
{"Not called",
Stats{},
nil,
func(_ Stat) bool { t.Errorf("should not be called"); return true }},
{"Matches value = 1.000",
Stats{bsnoStat, gworStat, cwrStat, sStat, bsnoStat},
Stats{gworStat, cwrStat},
func(s Stat) bool { return s.Value == "1.000" }},
}
for _, c := range cases {
got := c.start.Collect(c.pred)
if !reflect.DeepEqual(got, c.want) {
t.Errorf("%s: got: %+v, want: %+v", c.name, got, c.want)
}
}
}
func TestStatsValues(t *testing.T) {
start := Stats{bsnoStat, sStat, gworStat}
got := start.Values()
want := []string{bsnoStat.Value, sStat.Value, gworStat.Value}
if !reflect.DeepEqual(got, want) {
t.Errorf("got: %+v, want: %+v", got, want)
}
}
|
