105 lines
2.4 KiB
Go
105 lines
2.4 KiB
Go
// Copyright 2018 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 bitvector
|
|
|
|
import "testing"
|
|
|
|
func TestBitvectorNew(t *testing.T) {
|
|
_, err := New(0)
|
|
if err != errInvalidLength {
|
|
t.Errorf("expected err %v, got %v", errInvalidLength, err)
|
|
}
|
|
|
|
_, err = NewFromBytes(nil, 0)
|
|
if err != errInvalidLength {
|
|
t.Errorf("expected err %v, got %v", errInvalidLength, err)
|
|
}
|
|
|
|
_, err = NewFromBytes([]byte{0}, 9)
|
|
if err != errInvalidLength {
|
|
t.Errorf("expected err %v, got %v", errInvalidLength, err)
|
|
}
|
|
|
|
_, err = NewFromBytes(make([]byte, 8), 8)
|
|
if err != nil {
|
|
t.Error(err)
|
|
}
|
|
}
|
|
|
|
func TestBitvectorGetSet(t *testing.T) {
|
|
for _, length := range []int{
|
|
1,
|
|
2,
|
|
4,
|
|
8,
|
|
9,
|
|
15,
|
|
16,
|
|
} {
|
|
bv, err := New(length)
|
|
if err != nil {
|
|
t.Errorf("error for length %v: %v", length, err)
|
|
}
|
|
|
|
for i := 0; i < length; i++ {
|
|
if bv.Get(i) {
|
|
t.Errorf("expected false for element on index %v", i)
|
|
}
|
|
}
|
|
|
|
func() {
|
|
defer func() {
|
|
if err := recover(); err == nil {
|
|
t.Errorf("expecting panic")
|
|
}
|
|
}()
|
|
bv.Get(length + 8)
|
|
}()
|
|
|
|
for i := 0; i < length; i++ {
|
|
bv.Set(i, true)
|
|
for j := 0; j < length; j++ {
|
|
if j == i {
|
|
if !bv.Get(j) {
|
|
t.Errorf("element on index %v is not set to true", i)
|
|
}
|
|
} else {
|
|
if bv.Get(j) {
|
|
t.Errorf("element on index %v is not false", i)
|
|
}
|
|
}
|
|
}
|
|
|
|
bv.Set(i, false)
|
|
|
|
if bv.Get(i) {
|
|
t.Errorf("element on index %v is not set to false", i)
|
|
}
|
|
}
|
|
}
|
|
}
|
|
|
|
func TestBitvectorNewFromBytesGet(t *testing.T) {
|
|
bv, err := NewFromBytes([]byte{8}, 8)
|
|
if err != nil {
|
|
t.Error(err)
|
|
}
|
|
if !bv.Get(3) {
|
|
t.Fatalf("element 3 is not set to true: state %08b", bv.b[0])
|
|
}
|
|
}
|