github.com/annchain/OG@v0.0.9/common/math/bigint_test.go (about)

     1  // Copyright © 2019 Annchain Authors <EMAIL ADDRESS>
     2  //
     3  // Licensed under the Apache License, Version 2.0 (the "License");
     4  // you may not use this file except in compliance with the License.
     5  // You may obtain a copy of the License at
     6  //
     7  //     http://www.apache.org/licenses/LICENSE-2.0
     8  //
     9  // Unless required by applicable law or agreed to in writing, software
    10  // distributed under the License is distributed on an "AS IS" BASIS,
    11  // WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
    12  // See the License for the specific language governing permissions and
    13  // limitations under the License.
    14  package math
    15  
    16  import (
    17  	"encoding/hex"
    18  	"fmt"
    19  	"github.com/stretchr/testify/assert"
    20  	"testing"
    21  )
    22  
    23  func TestMoney(t *testing.T) {
    24  	s := "1234567890123456789012345678901234567890123456789012345678901234567890123456789012345678901234567890"
    25  	a, success := NewBigIntFromString(s, 10)
    26  	if !success {
    27  		panic(s)
    28  	}
    29  
    30  	a.SetString(s, 10)
    31  	a2 := NewBigInt(2)
    32  	a3 := NewBigIntFromBigInt(a.Value.Add(a.Value, a2.Value))
    33  
    34  	fmt.Println(a)
    35  	fmt.Println(a2)
    36  	fmt.Println(a3)
    37  
    38  	a3 = NewBigIntFromBigInt(a.Value.Add(a.Value, a2.Value))
    39  
    40  	fmt.Println(a3)
    41  }
    42  
    43  func TestSerialization(t *testing.T) {
    44  	s := "1234567890123456789012345678901234567890123456789012345678901234567890123456789012345678901234567890"
    45  	a, success := NewBigIntFromString(s, 10)
    46  	if !success {
    47  		panic(s)
    48  	}
    49  	bytes, err := a.MarshalMsg(nil)
    50  	assert.NoError(t, err)
    51  	hex.Dump(bytes)
    52  	b := &BigInt{}
    53  	bytes, err = b.UnmarshalMsg(bytes)
    54  	assert.NoError(t, err)
    55  	fmt.Println(b.String())
    56  	assert.Equal(t, s, b.String())
    57  }
    58  
    59  func TestBigInt_Add(t *testing.T) {
    60  	bi := NewBigInt(1000)
    61  	fmt.Println(bi)
    62  	bi = bi.Add(NewBigInt(99))
    63  	fmt.Println(bi)
    64  }