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a5dd0bcb09
The cornerstone API is a more memory-efficient Unmarshal. The savings come from re-using a json.Decoder. BenchmarkUnmarshal-8 4016418 288 ns/op 8 B/op 1 allocs/op BenchmarkStdUnmarshal-8 4189261 283 ns/op 184 B/op 2 allocs/op It also includes a Bytes type to reduce allocations when unmarshalling a non-hex-encoded JSON string into a []byte. Signed-off-by: Josh Bleecher Snyder <josh@tailscale.com>
66 lines
1.4 KiB
Go
66 lines
1.4 KiB
Go
// Copyright (c) 2020 Tailscale Inc & AUTHORS All rights reserved.
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// Use of this source code is governed by a BSD-style
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// license that can be found in the LICENSE file.
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package jsonutil
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import (
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"encoding/json"
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"reflect"
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"testing"
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)
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func TestCompareToStd(t *testing.T) {
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tests := []string{
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`{}`,
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`{"a": 1}`,
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`{]`,
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`"abc"`,
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`5`,
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`{"a": 1} `,
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`{"a": 1} {}`,
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`{} bad data`,
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`{"a": 1} "hello"`,
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`[]`,
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` {"x": {"t": [3,4,5]}}`,
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}
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for _, test := range tests {
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b := []byte(test)
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var ourV, stdV interface{}
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ourErr := Unmarshal(b, &ourV)
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stdErr := json.Unmarshal(b, &stdV)
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if (ourErr == nil) != (stdErr == nil) {
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t.Errorf("Unmarshal(%q): our err = %#[2]v (%[2]T), std err = %#[3]v (%[3]T)", test, ourErr, stdErr)
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}
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// if !reflect.DeepEqual(ourErr, stdErr) {
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// t.Logf("Unmarshal(%q): our err = %#[2]v (%[2]T), std err = %#[3]v (%[3]T)", test, ourErr, stdErr)
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// }
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if ourErr != nil {
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// TODO: if we zero ourV on error, remove this continue.
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continue
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}
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if !reflect.DeepEqual(ourV, stdV) {
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t.Errorf("Unmarshal(%q): our val = %v, std val = %v", test, ourV, stdV)
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}
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}
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}
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func BenchmarkUnmarshal(b *testing.B) {
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var m interface{}
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j := []byte("5")
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b.ReportAllocs()
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for i := 0; i < b.N; i++ {
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Unmarshal(j, &m)
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}
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}
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func BenchmarkStdUnmarshal(b *testing.B) {
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var m interface{}
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j := []byte("5")
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b.ReportAllocs()
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for i := 0; i < b.N; i++ {
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json.Unmarshal(j, &m)
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}
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}
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