mirror of
https://github.com/ii64/sonic.git
synced 2026-06-21 00:46:43 +08:00
133 lines
7.7 KiB
Go
133 lines
7.7 KiB
Go
/*
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* Copyright 2021 ByteDance Inc.
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*
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* Licensed under the Apache License, Version 2.0 (the "License");
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* you may not use this file except in compliance with the License.
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* You may obtain a copy of the License at
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*
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* http://www.apache.org/licenses/LICENSE-2.0
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*
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* Unless required by applicable law or agreed to in writing, software
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* distributed under the License is distributed on an "AS IS" BASIS,
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* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
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* See the License for the specific language governing permissions and
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* limitations under the License.
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*/
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package native
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import (
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`strconv`
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`testing`
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`github.com/stretchr/testify/assert`
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)
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func TestFastInt_IntToString(t *testing.T) {
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var buf [32]byte
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assert.Equal(t, "0" , string(buf[:__i64toa(&buf[0], 0)]))
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assert.Equal(t, "1" , string(buf[:__i64toa(&buf[0], 1)]))
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assert.Equal(t, "12" , string(buf[:__i64toa(&buf[0], 12)]))
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assert.Equal(t, "123" , string(buf[:__i64toa(&buf[0], 123)]))
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assert.Equal(t, "1234" , string(buf[:__i64toa(&buf[0], 1234)]))
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assert.Equal(t, "12345" , string(buf[:__i64toa(&buf[0], 12345)]))
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assert.Equal(t, "123456" , string(buf[:__i64toa(&buf[0], 123456)]))
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assert.Equal(t, "1234567" , string(buf[:__i64toa(&buf[0], 1234567)]))
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assert.Equal(t, "12345678" , string(buf[:__i64toa(&buf[0], 12345678)]))
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assert.Equal(t, "123456789" , string(buf[:__i64toa(&buf[0], 123456789)]))
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assert.Equal(t, "1234567890" , string(buf[:__i64toa(&buf[0], 1234567890)]))
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assert.Equal(t, "12345678901" , string(buf[:__i64toa(&buf[0], 12345678901)]))
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assert.Equal(t, "123456789012" , string(buf[:__i64toa(&buf[0], 123456789012)]))
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assert.Equal(t, "1234567890123" , string(buf[:__i64toa(&buf[0], 1234567890123)]))
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assert.Equal(t, "12345678901234" , string(buf[:__i64toa(&buf[0], 12345678901234)]))
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assert.Equal(t, "123456789012345" , string(buf[:__i64toa(&buf[0], 123456789012345)]))
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assert.Equal(t, "1234567890123456" , string(buf[:__i64toa(&buf[0], 1234567890123456)]))
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assert.Equal(t, "12345678901234567" , string(buf[:__i64toa(&buf[0], 12345678901234567)]))
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assert.Equal(t, "123456789012345678" , string(buf[:__i64toa(&buf[0], 123456789012345678)]))
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assert.Equal(t, "1234567890123456789" , string(buf[:__i64toa(&buf[0], 1234567890123456789)]))
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assert.Equal(t, "9223372036854775807" , string(buf[:__i64toa(&buf[0], 9223372036854775807)]))
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assert.Equal(t, "-1" , string(buf[:__i64toa(&buf[0], -1)]))
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assert.Equal(t, "-12" , string(buf[:__i64toa(&buf[0], -12)]))
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assert.Equal(t, "-123" , string(buf[:__i64toa(&buf[0], -123)]))
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assert.Equal(t, "-1234" , string(buf[:__i64toa(&buf[0], -1234)]))
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assert.Equal(t, "-12345" , string(buf[:__i64toa(&buf[0], -12345)]))
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assert.Equal(t, "-123456" , string(buf[:__i64toa(&buf[0], -123456)]))
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assert.Equal(t, "-1234567" , string(buf[:__i64toa(&buf[0], -1234567)]))
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assert.Equal(t, "-12345678" , string(buf[:__i64toa(&buf[0], -12345678)]))
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assert.Equal(t, "-123456789" , string(buf[:__i64toa(&buf[0], -123456789)]))
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assert.Equal(t, "-1234567890" , string(buf[:__i64toa(&buf[0], -1234567890)]))
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assert.Equal(t, "-12345678901" , string(buf[:__i64toa(&buf[0], -12345678901)]))
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assert.Equal(t, "-123456789012" , string(buf[:__i64toa(&buf[0], -123456789012)]))
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assert.Equal(t, "-1234567890123" , string(buf[:__i64toa(&buf[0], -1234567890123)]))
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assert.Equal(t, "-12345678901234" , string(buf[:__i64toa(&buf[0], -12345678901234)]))
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assert.Equal(t, "-123456789012345" , string(buf[:__i64toa(&buf[0], -123456789012345)]))
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assert.Equal(t, "-1234567890123456" , string(buf[:__i64toa(&buf[0], -1234567890123456)]))
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assert.Equal(t, "-12345678901234567" , string(buf[:__i64toa(&buf[0], -12345678901234567)]))
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assert.Equal(t, "-123456789012345678" , string(buf[:__i64toa(&buf[0], -123456789012345678)]))
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assert.Equal(t, "-1234567890123456789" , string(buf[:__i64toa(&buf[0], -1234567890123456789)]))
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assert.Equal(t, "-9223372036854775808" , string(buf[:__i64toa(&buf[0], -9223372036854775808)]))
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}
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func TestFastInt_UintToString(t *testing.T) {
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var buf [32]byte
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assert.Equal(t, "0" , string(buf[:__u64toa(&buf[0], 0)]))
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assert.Equal(t, "1" , string(buf[:__u64toa(&buf[0], 1)]))
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assert.Equal(t, "12" , string(buf[:__u64toa(&buf[0], 12)]))
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assert.Equal(t, "123" , string(buf[:__u64toa(&buf[0], 123)]))
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assert.Equal(t, "1234" , string(buf[:__u64toa(&buf[0], 1234)]))
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assert.Equal(t, "12345" , string(buf[:__u64toa(&buf[0], 12345)]))
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assert.Equal(t, "123456" , string(buf[:__u64toa(&buf[0], 123456)]))
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assert.Equal(t, "1234567" , string(buf[:__u64toa(&buf[0], 1234567)]))
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assert.Equal(t, "12345678" , string(buf[:__u64toa(&buf[0], 12345678)]))
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assert.Equal(t, "123456789" , string(buf[:__u64toa(&buf[0], 123456789)]))
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assert.Equal(t, "1234567890" , string(buf[:__u64toa(&buf[0], 1234567890)]))
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assert.Equal(t, "12345678901" , string(buf[:__u64toa(&buf[0], 12345678901)]))
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assert.Equal(t, "123456789012" , string(buf[:__u64toa(&buf[0], 123456789012)]))
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assert.Equal(t, "1234567890123" , string(buf[:__u64toa(&buf[0], 1234567890123)]))
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assert.Equal(t, "12345678901234" , string(buf[:__u64toa(&buf[0], 12345678901234)]))
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assert.Equal(t, "123456789012345" , string(buf[:__u64toa(&buf[0], 123456789012345)]))
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assert.Equal(t, "1234567890123456" , string(buf[:__u64toa(&buf[0], 1234567890123456)]))
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assert.Equal(t, "12345678901234567" , string(buf[:__u64toa(&buf[0], 12345678901234567)]))
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assert.Equal(t, "123456789012345678" , string(buf[:__u64toa(&buf[0], 123456789012345678)]))
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assert.Equal(t, "1234567890123456789" , string(buf[:__u64toa(&buf[0], 1234567890123456789)]))
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assert.Equal(t, "12345678901234567890" , string(buf[:__u64toa(&buf[0], 12345678901234567890)]))
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assert.Equal(t, "18446744073709551615" , string(buf[:__u64toa(&buf[0], 18446744073709551615)]))
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}
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func BenchmarkFastInt_IntToString(b *testing.B) {
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benchmarks := []struct {
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name string
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test func(*testing.B)
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}{{
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name: "StdLib-Positive",
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test: func(b *testing.B) { var buf [32]byte; for i := 0; i < b.N; i++ { strconv.AppendInt(buf[:], int64(i), 10) }},
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}, {
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name: "StdLib-Negative",
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test: func(b *testing.B) { var buf [32]byte; for i := 0; i < b.N; i++ { strconv.AppendInt(buf[:], -int64(i), 10) }},
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}, {
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name: "FastInt-Positive",
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test: func(b *testing.B) { var buf [32]byte; for i := 0; i < b.N; i++ { __i64toa(&buf[0], int64(i)) }},
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}, {
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name: "FastInt-Negative",
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test: func(b *testing.B) { var buf [32]byte; for i := 0; i < b.N; i++ { __i64toa(&buf[0], -int64(i)) }},
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}}
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for _, bm := range benchmarks {
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b.Run(bm.name, bm.test)
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}
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}
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func BenchmarkFastInt_UintToString(b *testing.B) {
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benchmarks := []struct {
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name string
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test func(*testing.B)
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}{{
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name: "StdLib",
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test: func(b *testing.B) { var buf [32]byte; for i := 0; i < b.N; i++ { strconv.AppendUint(buf[:], uint64(i), 10) }},
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}, {
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name: "FastInt",
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test: func(b *testing.B) { var buf [32]byte; for i := 0; i < b.N; i++ { __u64toa(&buf[0], uint64(i)) }},
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}}
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for _, bm := range benchmarks {
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b.Run(bm.name, bm.test)
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}
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}
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