forked from cerc-io/ipld-eth-server
109 lines
2.4 KiB
Go
109 lines
2.4 KiB
Go
// Copyright 2015 The go-ethereum Authors
|
|
// This file is part of the go-ethereum library.
|
|
//
|
|
// The go-ethereum library is free software: you can redistribute it and/or modify
|
|
// it under the terms of the GNU Lesser General Public License as published by
|
|
// the Free Software Foundation, either version 3 of the License, or
|
|
// (at your option) any later version.
|
|
//
|
|
// The go-ethereum library is distributed in the hope that it will be useful,
|
|
// but WITHOUT ANY WARRANTY; without even the implied warranty of
|
|
// MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
|
|
// GNU Lesser General Public License for more details.
|
|
//
|
|
// You should have received a copy of the GNU Lesser General Public License
|
|
// along with the go-ethereum library. If not, see <http://www.gnu.org/licenses/>.
|
|
|
|
package number
|
|
|
|
import (
|
|
"math/big"
|
|
"testing"
|
|
|
|
"github.com/ethereum/go-ethereum/common"
|
|
)
|
|
|
|
func TestSet(t *testing.T) {
|
|
a := Uint(0)
|
|
b := Uint(10)
|
|
a.Set(b)
|
|
if a.num.Cmp(b.num) != 0 {
|
|
t.Error("didn't compare", a, b)
|
|
}
|
|
|
|
c := Uint(0).SetBytes(common.Hex2Bytes("0a"))
|
|
if c.num.Cmp(big.NewInt(10)) != 0 {
|
|
t.Error("c set bytes failed.")
|
|
}
|
|
}
|
|
|
|
func TestInitialiser(t *testing.T) {
|
|
check := false
|
|
init := NewInitialiser(func(x *Number) *Number {
|
|
check = true
|
|
return x
|
|
})
|
|
a := init(0).Add(init(1), init(2))
|
|
if a.Cmp(init(3)) != 0 {
|
|
t.Error("expected 3. got", a)
|
|
}
|
|
if !check {
|
|
t.Error("expected limiter to be called")
|
|
}
|
|
}
|
|
|
|
func TestGet(t *testing.T) {
|
|
a := Uint(10)
|
|
if a.Uint64() != 10 {
|
|
t.Error("expected to get 10. got", a.Uint64())
|
|
}
|
|
|
|
a = Uint(10)
|
|
if a.Int64() != 10 {
|
|
t.Error("expected to get 10. got", a.Int64())
|
|
}
|
|
}
|
|
|
|
func TestCmp(t *testing.T) {
|
|
a := Uint(10)
|
|
b := Uint(10)
|
|
c := Uint(11)
|
|
|
|
if a.Cmp(b) != 0 {
|
|
t.Error("a b == 0 failed", a, b)
|
|
}
|
|
|
|
if a.Cmp(c) >= 0 {
|
|
t.Error("a c < 0 failed", a, c)
|
|
}
|
|
|
|
if c.Cmp(b) <= 0 {
|
|
t.Error("c b > 0 failed", c, b)
|
|
}
|
|
}
|
|
|
|
func TestMaxArith(t *testing.T) {
|
|
a := Uint(0).Add(MaxUint256, One)
|
|
if a.Cmp(Zero) != 0 {
|
|
t.Error("expected max256 + 1 = 0 got", a)
|
|
}
|
|
|
|
a = Uint(0).Sub(Uint(0), One)
|
|
if a.Cmp(MaxUint256) != 0 {
|
|
t.Error("expected 0 - 1 = max256 got", a)
|
|
}
|
|
|
|
a = Int(0).Sub(Int(0), One)
|
|
if a.Cmp(MinOne) != 0 {
|
|
t.Error("expected 0 - 1 = -1 got", a)
|
|
}
|
|
}
|
|
|
|
func TestConversion(t *testing.T) {
|
|
a := Int(-1)
|
|
b := a.Uint256()
|
|
if b.Cmp(MaxUint256) != 0 {
|
|
t.Error("expected -1 => unsigned to return max. got", b)
|
|
}
|
|
}
|