zlog/internal/cbor/time_test.go

100 lines
2.5 KiB
Go

package cbor
import (
"encoding/hex"
"fmt"
"math"
"testing"
"time"
)
func TestAppendTimeNow(t *testing.T) {
tm := time.Now()
s := AppendTime([]byte{}, tm, "unused")
got := string(s)
tm1 := float64(tm.Unix()) + float64(tm.Nanosecond())*1E-9
tm2 := math.Float64bits(tm1)
var tm3 [8]byte
for i := uint(0); i < 8; i++ {
tm3[i] = byte(tm2 >> ((8 - i - 1) * 8))
}
want := append([]byte{0xc1, 0xfb}, tm3[:]...)
if got != string(want) {
t.Errorf("Appendtime(%s)=0x%s, want: 0x%s",
"time.Now()", hex.EncodeToString(s),
hex.EncodeToString(want))
}
}
var timeIntegerTestcases = []struct {
txt string
binary string
rfcStr string
}{
{"2013-02-03T19:54:00-08:00", "\xc1\x1a\x51\x0f\x30\xd8", "2013-02-04T03:54:00Z"},
{"1950-02-03T19:54:00-08:00", "\xc1\x3a\x25\x71\x93\xa7", "1950-02-04T03:54:00Z"},
}
func TestAppendTimePastPresentInteger(t *testing.T) {
for _, tt := range timeIntegerTestcases {
tin, err := time.Parse(time.RFC3339, tt.txt)
if err != nil {
fmt.Println("Cannot parse input", tt.txt, ".. Skipping!", err)
continue
}
b := AppendTime([]byte{}, tin, "unused")
if got, want := string(b), tt.binary; got != want {
t.Errorf("appendString(%s) = 0x%s, want 0x%s", tt.txt,
hex.EncodeToString(b),
hex.EncodeToString([]byte(want)))
}
}
}
var timeFloatTestcases = []struct {
rfcStr string
out string
}{
{"2006-01-02T15:04:05.999999-08:00", "\xc1\xfb\x41\xd0\xee\x6c\x59\x7f\xff\xfc"},
{"1956-01-02T15:04:05.999999-08:00", "\xc1\xfb\xc1\xba\x53\x81\x1a\x00\x00\x11"},
}
func TestAppendTimePastPresentFloat(t *testing.T) {
const timeFloatFmt = "2006-01-02T15:04:05.999999-07:00"
for _, tt := range timeFloatTestcases {
tin, err := time.Parse(timeFloatFmt, tt.rfcStr)
if err != nil {
fmt.Println("Cannot parse input", tt.rfcStr, ".. Skipping!")
continue
}
b := AppendTime([]byte{}, tin, "unused")
if got, want := string(b), tt.out; got != want {
t.Errorf("appendString(%s) = 0x%s, want 0x%s", tt.rfcStr,
hex.EncodeToString(b),
hex.EncodeToString([]byte(want)))
}
}
}
func BenchmarkAppendTime(b *testing.B) {
tests := map[string]string{
"Integer": "Feb 3, 2013 at 7:54pm (PST)",
"Float": "2006-01-02T15:04:05.999999-08:00",
}
const timeFloatFmt = "2006-01-02T15:04:05.999999-07:00"
for name, str := range tests {
t, err := time.Parse(time.RFC3339, str)
if err != nil {
t, _ = time.Parse(timeFloatFmt, str)
}
b.Run(name, func(b *testing.B) {
buf := make([]byte, 0, 100)
for i := 0; i < b.N; i++ {
_ = AppendTime(buf, t, "unused")
}
})
}
}