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|
package msgp
import (
"bytes"
"encoding/json"
"reflect"
"testing"
"unicode/utf8"
)
func TestCopyJSON(t *testing.T) {
var buf bytes.Buffer
enc := NewWriter(&buf)
const mapLength = 6
enc.WriteMapHeader(mapLength)
enc.WriteString("thing_1")
enc.WriteString("a string object")
enc.WriteString("a_map")
enc.WriteMapHeader(2)
enc.WriteString("float_a")
enc.WriteFloat32(1.0)
enc.WriteString("int_b")
enc.WriteInt64(-100)
enc.WriteString("some bytes")
enc.WriteBytes([]byte("here are some bytes"))
enc.WriteString("a bool")
enc.WriteBool(true)
enc.WriteString("a map")
enc.WriteMapStrStr(map[string]string{
"internal_one": "blah",
"internal_two": "blahhh...",
})
enc.WriteString("float64")
const encodedFloat64 = 1672209023
enc.WriteFloat64(encodedFloat64)
enc.Flush()
var js bytes.Buffer
_, err := CopyToJSON(&js, &buf)
if err != nil {
t.Fatal(err)
}
mp := make(map[string]interface{})
err = json.Unmarshal(js.Bytes(), &mp)
if err != nil {
t.Log(js.String())
t.Fatalf("Error unmarshaling: %s", err)
}
if len(mp) != mapLength {
t.Errorf("map length should be %d, not %d", mapLength, len(mp))
}
so, ok := mp["thing_1"]
if !ok || so != "a string object" {
t.Errorf("expected %q; got %q", "a string object", so)
}
in, ok := mp["a map"]
if !ok {
t.Error("no key 'a map'")
}
if inm, ok := in.(map[string]interface{}); !ok {
t.Error("inner map not type-assertable to map[string]interface{}")
} else {
inm1, ok := inm["internal_one"]
if !ok || !reflect.DeepEqual(inm1, "blah") {
t.Errorf("inner map field %q should be %q, not %q", "internal_one", "blah", inm1)
}
}
if actual := mp["float64"]; float64(encodedFloat64) != actual.(float64) {
t.Errorf("expected %G, got %G", float64(encodedFloat64), actual)
}
}
// Encoder should generate valid utf-8 even if passed bad input
func TestCopyJSONNegativeUTF8(t *testing.T) {
// Single string with non-compliant utf-8 byte
stringWithBadUTF8 := []byte{
0xa1, 0xe0,
}
src := bytes.NewBuffer(stringWithBadUTF8)
var js bytes.Buffer
_, err := CopyToJSON(&js, src)
if err != nil {
t.Fatal(err)
}
// Even though we provided bad input, should have escaped the naughty character
if !utf8.Valid(js.Bytes()) {
t.Errorf("Expected JSON to be valid utf-8 even when provided bad input")
}
// Expect a bad character string
expected := `"\ufffd"`
if js.String() != expected {
t.Errorf("Expected: '%s', got: '%s'", expected, js.String())
}
}
func BenchmarkCopyToJSON(b *testing.B) {
var buf bytes.Buffer
enc := NewWriter(&buf)
enc.WriteMapHeader(4)
enc.WriteString("thing_1")
enc.WriteString("a string object")
enc.WriteString("a_first_map")
enc.WriteMapHeader(2)
enc.WriteString("float_a")
enc.WriteFloat32(1.0)
enc.WriteString("int_b")
enc.WriteInt64(-100)
enc.WriteString("an array")
enc.WriteArrayHeader(2)
enc.WriteBool(true)
enc.WriteUint(2089)
enc.WriteString("a_second_map")
enc.WriteMapStrStr(map[string]string{
"internal_one": "blah",
"internal_two": "blahhh...",
})
enc.Flush()
var js bytes.Buffer
bts := buf.Bytes()
_, err := CopyToJSON(&js, &buf)
if err != nil {
b.Fatal(err)
}
b.SetBytes(int64(len(js.Bytes())))
b.ResetTimer()
b.ReportAllocs()
for i := 0; i < b.N; i++ {
js.Reset()
CopyToJSON(&js, bytes.NewReader(bts))
}
}
func BenchmarkStdlibJSON(b *testing.B) {
obj := map[string]interface{}{
"thing_1": "a string object",
"a_first_map": map[string]interface{}{
"float_a": float32(1.0),
"float_b": -100,
},
"an array": []interface{}{
"part_A",
"part_B",
},
"a_second_map": map[string]interface{}{
"internal_one": "blah",
"internal_two": "blahhh...",
},
}
var js bytes.Buffer
err := json.NewEncoder(&js).Encode(&obj)
if err != nil {
b.Fatal(err)
}
b.SetBytes(int64(len(js.Bytes())))
b.ResetTimer()
b.ReportAllocs()
for i := 0; i < b.N; i++ {
js.Reset()
json.NewEncoder(&js).Encode(&obj)
}
}
|
