go-pulse/log/format_test.go
Felix Lange fda93f643e
log: fix formatting of big.Int (#22679)
* log: fix formatting of big.Int

The implementation of formatLogfmtBigInt had two issues: it crashed when
the number was actually large enough to hit the big integer case, and
modified the big.Int while formatting it.

* log: don't call FormatLogfmtInt64 for int16

* log: separate from decimals back, not front

Co-authored-by: Péter Szilágyi <peterke@gmail.com>
2021-04-16 09:27:16 +03:00

96 lines
2.0 KiB
Go

package log
import (
"math"
"math/big"
"math/rand"
"testing"
)
func TestPrettyInt64(t *testing.T) {
tests := []struct {
n int64
s string
}{
{0, "0"},
{10, "10"},
{-10, "-10"},
{100, "100"},
{-100, "-100"},
{1000, "1000"},
{-1000, "-1000"},
{10000, "10000"},
{-10000, "-10000"},
{99999, "99999"},
{-99999, "-99999"},
{100000, "100,000"},
{-100000, "-100,000"},
{1000000, "1,000,000"},
{-1000000, "-1,000,000"},
{math.MaxInt64, "9,223,372,036,854,775,807"},
{math.MinInt64, "-9,223,372,036,854,775,808"},
}
for i, tt := range tests {
if have := FormatLogfmtInt64(tt.n); have != tt.s {
t.Errorf("test %d: format mismatch: have %s, want %s", i, have, tt.s)
}
}
}
func TestPrettyUint64(t *testing.T) {
tests := []struct {
n uint64
s string
}{
{0, "0"},
{10, "10"},
{100, "100"},
{1000, "1000"},
{10000, "10000"},
{99999, "99999"},
{100000, "100,000"},
{1000000, "1,000,000"},
{math.MaxUint64, "18,446,744,073,709,551,615"},
}
for i, tt := range tests {
if have := FormatLogfmtUint64(tt.n); have != tt.s {
t.Errorf("test %d: format mismatch: have %s, want %s", i, have, tt.s)
}
}
}
func TestPrettyBigInt(t *testing.T) {
tests := []struct {
int string
s string
}{
{"111222333444555678999", "111,222,333,444,555,678,999"},
{"-111222333444555678999", "-111,222,333,444,555,678,999"},
{"11122233344455567899900", "11,122,233,344,455,567,899,900"},
{"-11122233344455567899900", "-11,122,233,344,455,567,899,900"},
}
for _, tt := range tests {
v, _ := new(big.Int).SetString(tt.int, 10)
if have := formatLogfmtBigInt(v); have != tt.s {
t.Errorf("invalid output %s, want %s", have, tt.s)
}
}
}
var sink string
func BenchmarkPrettyInt64Logfmt(b *testing.B) {
b.ReportAllocs()
for i := 0; i < b.N; i++ {
sink = FormatLogfmtInt64(rand.Int63())
}
}
func BenchmarkPrettyUint64Logfmt(b *testing.B) {
b.ReportAllocs()
for i := 0; i < b.N; i++ {
sink = FormatLogfmtUint64(rand.Uint64())
}
}