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jsoniter_float_test.go
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package misc_tests
import (
"encoding/json"
"math"
"testing"
"github.com/json-iterator/go"
"github.com/stretchr/testify/require"
)
func Test_read_big_float(t *testing.T) {
should := require.New(t)
iter := jsoniter.ParseString(jsoniter.ConfigDefault, `12.3`)
val := iter.ReadBigFloat()
val64, _ := val.Float64()
should.Equal(12.3, val64)
}
func Test_read_big_int(t *testing.T) {
should := require.New(t)
iter := jsoniter.ParseString(jsoniter.ConfigDefault, `92233720368547758079223372036854775807`)
val := iter.ReadBigInt()
should.NotNil(val)
should.Equal(`92233720368547758079223372036854775807`, val.String())
}
func Test_read_float_as_interface(t *testing.T) {
should := require.New(t)
iter := jsoniter.ParseString(jsoniter.ConfigDefault, `12.3`)
should.Equal(float64(12.3), iter.Read())
}
func Test_wrap_float(t *testing.T) {
should := require.New(t)
str, err := jsoniter.MarshalToString(jsoniter.WrapFloat64(12.3))
should.Nil(err)
should.Equal("12.3", str)
}
func Test_read_float64_cursor(t *testing.T) {
should := require.New(t)
iter := jsoniter.ParseString(jsoniter.ConfigDefault, "[1.23456789\n,2,3]")
should.True(iter.ReadArray())
should.Equal(1.23456789, iter.Read())
should.True(iter.ReadArray())
should.Equal(float64(2), iter.Read())
}
func Test_read_float_scientific(t *testing.T) {
should := require.New(t)
var obj interface{}
should.NoError(jsoniter.UnmarshalFromString(`1e1`, &obj))
should.Equal(float64(10), obj)
should.NoError(json.Unmarshal([]byte(`1e1`), &obj))
should.Equal(float64(10), obj)
should.NoError(jsoniter.UnmarshalFromString(`1.0e1`, &obj))
should.Equal(float64(10), obj)
should.NoError(json.Unmarshal([]byte(`1.0e1`), &obj))
should.Equal(float64(10), obj)
}
func Test_lossy_float_marshal(t *testing.T) {
should := require.New(t)
api := jsoniter.Config{MarshalFloatWith6Digits: true}.Froze()
output, err := api.MarshalToString(float64(0.1234567))
should.Nil(err)
should.Equal("0.123457", output)
output, err = api.MarshalToString(float32(0.1234567))
should.Nil(err)
should.Equal("0.123457", output)
}
func Test_read_number(t *testing.T) {
should := require.New(t)
iter := jsoniter.ParseString(jsoniter.ConfigDefault, `92233720368547758079223372036854775807`)
val := iter.ReadNumber()
should.Equal(`92233720368547758079223372036854775807`, string(val))
}
func Test_encode_inf(t *testing.T) {
should := require.New(t)
_, err := json.Marshal(math.Inf(1))
should.Error(err)
_, err = jsoniter.Marshal(float32(math.Inf(1)))
should.Error(err)
_, err = jsoniter.Marshal(math.Inf(-1))
should.Error(err)
}
func Test_encode_nan(t *testing.T) {
should := require.New(t)
_, err := json.Marshal(math.NaN())
should.Error(err)
_, err = jsoniter.Marshal(float32(math.NaN()))
should.Error(err)
_, err = jsoniter.Marshal(math.NaN())
should.Error(err)
}
func Benchmark_jsoniter_float(b *testing.B) {
b.ReportAllocs()
input := []byte(`1.1123,`)
iter := jsoniter.NewIterator(jsoniter.ConfigDefault)
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)
}
}