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package jsoniter
import (
"encoding/json"
"fmt"
"testing"
"github.com/json-iterator/go/require"
"bytes"
"strconv"
)
func Test_read_float(t *testing.T) {
inputs := []string{`1.1`, `1000`, `9223372036854775807`, `12.3`, `-12.3`, `720368.54775807`, `720368.547758075`}
for _, input := range inputs {
// non-streaming
t.Run(fmt.Sprintf("%v", input), func(t *testing.T) {
should := require.New(t)
iter := ParseString(input + ",")
expected, err := strconv.ParseFloat(input, 32)
should.Nil(err)
should.Equal(float32(expected), iter.ReadFloat32())
})
t.Run(fmt.Sprintf("%v", input), func(t *testing.T) {
should := require.New(t)
iter := ParseString(input + ",")
expected, err := strconv.ParseFloat(input, 64)
should.Nil(err)
should.Equal(expected, iter.ReadFloat64())
})
// streaming
t.Run(fmt.Sprintf("%v", input), func(t *testing.T) {
should := require.New(t)
iter := Parse(bytes.NewBufferString(input + ","), 2)
expected, err := strconv.ParseFloat(input, 32)
should.Nil(err)
should.Equal(float32(expected), iter.ReadFloat32())
})
t.Run(fmt.Sprintf("%v", input), func(t *testing.T) {
should := require.New(t)
iter := Parse(bytes.NewBufferString(input + ","), 2)
expected, err := strconv.ParseFloat(input, 64)
should.Nil(err)
should.Equal(expected, iter.ReadFloat64())
})
}
}
func Test_write_float32(t *testing.T) {
vals := []float32{0, 1, -1, 99, 0xff, 0xfff, 0xffff, 0xfffff, 0xffffff, 0x4ffffff, 0xfffffff,
-0x4ffffff, -0xfffffff, 1.2345, 1.23456, 1.234567, 1.001}
for _, val := range vals {
t.Run(fmt.Sprintf("%v", val), func(t *testing.T) {
should := require.New(t)
buf := &bytes.Buffer{}
stream := NewStream(buf, 4096)
stream.WriteFloat32(val)
stream.Flush()
should.Nil(stream.Error)
should.Equal(strconv.FormatFloat(float64(val), 'f', -1, 32), buf.String())
})
t.Run(fmt.Sprintf("%v", val), func(t *testing.T) {
should := require.New(t)
buf := &bytes.Buffer{}
stream := NewStream(buf, 4096)
stream.WriteVal(val)
stream.Flush()
should.Nil(stream.Error)
should.Equal(strconv.FormatFloat(float64(val), 'f', -1, 32), buf.String())
})
}
should := require.New(t)
buf := &bytes.Buffer{}
stream := NewStream(buf, 10)
stream.WriteRaw("abcdefg")
stream.WriteFloat32(1.123456)
stream.Flush()
should.Nil(stream.Error)
should.Equal("abcdefg1.123456", buf.String())
}
func Test_write_float64(t *testing.T) {
vals := []float64{0, 1, -1, 99, 0xff, 0xfff, 0xffff, 0xfffff, 0xffffff, 0x4ffffff, 0xfffffff,
-0x4ffffff, -0xfffffff, 1.2345, 1.23456, 1.234567, 1.001}
for _, val := range vals {
t.Run(fmt.Sprintf("%v", val), func(t *testing.T) {
should := require.New(t)
buf := &bytes.Buffer{}
stream := NewStream(buf, 4096)
stream.WriteFloat64(val)
stream.Flush()
should.Nil(stream.Error)
should.Equal(strconv.FormatFloat(val, 'f', -1, 64), buf.String())
})
t.Run(fmt.Sprintf("%v", val), func(t *testing.T) {
should := require.New(t)
buf := &bytes.Buffer{}
stream := NewStream(buf, 4096)
stream.WriteVal(val)
stream.Flush()
should.Nil(stream.Error)
should.Equal(strconv.FormatFloat(val, 'f', -1, 64), buf.String())
})
}
should := require.New(t)
buf := &bytes.Buffer{}
stream := NewStream(buf, 10)
stream.WriteRaw("abcdefg")
stream.WriteFloat64(1.123456)
stream.Flush()
should.Nil(stream.Error)
should.Equal("abcdefg1.123456", buf.String())
}
func Benchmark_jsoniter_float(b *testing.B) {
b.ReportAllocs()
input := []byte(`1.1123,`)
iter := NewIterator()
for n := 0; n < b.N; n++ {
iter.ResetBytes(input)
iter.ReadFloat64()
}
}
func Benchmark_json_float(b *testing.B) {
for n := 0; n < b.N; n++ {
result := float64(0)
json.Unmarshal([]byte(`1.1`), &result)
}
}