use_number_test.go

/*
 * Copyright 2021 ByteDance Inc.
 *
 * Licensed under the Apache License, Version 2.0 (the "License");
 * you may not use this file except in compliance with the License.
 * You may obtain a copy of the License at
 *
 *      http://www.apache.org/licenses/LICENSE-2.0
 *
 * Unless required by applicable law or agreed to in writing, software
 * distributed under the License is distributed on an "AS IS" BASIS,
 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
 * See the License for the specific language governing permissions and
 * limitations under the License.
 */

package sonic

import (
	"encoding/json"
	"reflect"
	"testing"

	"github.com/bytedance/sonic/decoder"
)

type useInt64Test struct {
	in  string
	out int64
}

type useFloatTest struct {
	in  string
	out float64
}

var useinttest = []useInt64Test{
	// int64
	{"0", 0},
	{"1", 1},
	{"-1", -1},
	{"100", 100},

	{"-9223372036854775807", -9223372036854775807},
	{"-9223372036854775808", -9223372036854775808}, //min int64
	{"9223372036854775807", 9223372036854775807},   //max int64
	{"9223372036854775806", 9223372036854775806},
}

var usefloattest = []useFloatTest{
	// float64
	{"-9223372036854775809", -9223372036854775809}, // int64 overflow
	{"9223372036854775808", 9223372036854775808},   // int64 overflow
	{"1e2", 1e2},
	{"1e-20", 1e-20},
	{"1.0", 1},
}

func TestUseInt64(t *testing.T) {
	for i, tt := range useinttest {
		var sout interface{}
		dc := decoder.NewDecoder(tt.in)
		dc.UseInt64()
		serr := dc.Decode(&sout)
		if !reflect.DeepEqual(sout, tt.out) {
			t.Errorf("Test %d, %#v\ngot:\n   %#v\nexp:\n   %#v\n", i, tt.in, sout, tt.in)
		}
		if serr != nil {
			t.Errorf("Test %d, %#v\ngot:\n   %#v\nexp:\n   nil\n", i, tt, serr)
		}
	}

	for i, tt := range usefloattest {
		var sout interface{}
		dc := decoder.NewDecoder(tt.in)
		dc.UseInt64()
		//the input string is not int64, still return float64
		serr := dc.Decode(&sout)
		if !reflect.DeepEqual(sout, tt.out) {
			t.Errorf("Test %d, %#v\ngot:\n   %#v\nexp:\n   %#v\n", i, tt.in, sout, tt.in)
		}
		if serr != nil {
			t.Errorf("Test %d, %#v\ngot:\n   %#v\nexp:\n   nil\n", i, tt, serr)
		}
	}
}

func TestUseNumber(t *testing.T) {
	for i, tt := range useinttest {
		var sout interface{}
		dc := decoder.NewDecoder(tt.in)
		dc.UseNumber()
		serr := dc.Decode(&sout)
		if !reflect.DeepEqual(sout, json.Number(tt.in)) {
			t.Errorf("Test %d, %#v\ngot:\n   %#v\nexp:\n   %#v\n", i, tt.in, sout, tt.out)
		}
		if serr != nil {
			t.Errorf("Test %d, %#v\ngot:\n   %#v\nexp:\n   nil\n", i, tt, serr)
		}
	}

	for i, tt := range usefloattest {
		var sout interface{}
		dc := decoder.NewDecoder(tt.in)
		dc.UseNumber()
		serr := dc.Decode(&sout)
		if !reflect.DeepEqual(sout, json.Number(tt.in)) {
			t.Errorf("Test %d, %#v\ngot:\n   %#v\nexp:\n   %#v\n", i, tt.in, sout, tt.out)
		}
		if serr != nil {
			t.Errorf("Test %d, %#v\ngot:\n   %#v\nexp:\n   nil\n", i, tt, serr)
		}
	}
}