go-ethereum/signer/core/signed_data_internal_test.go

// Copyright 2019 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 core

import (
	"math/big"
	"testing"
)

func TestParseInteger(t *testing.T) {
	for i, tt := range []struct {
		t   string
		v   interface{}
		exp *big.Int
	}{
		{"uint32", "-123", nil},
		{"int32", "-123", big.NewInt(-123)},
		{"uint32", "0xff", big.NewInt(0xff)},
		{"int8", "0xffff", nil},
	} {
		res, err := parseInteger(tt.t, tt.v)
		if tt.exp == nil && res == nil {
			continue
		}
		if tt.exp == nil && res != nil {
			t.Errorf("test %d, got %v, expected nil", i, res)
			continue
		}
		if tt.exp != nil && res == nil {
			t.Errorf("test %d, got '%v', expected %v", i, err, tt.exp)
			continue
		}
		if tt.exp.Cmp(res) != 0 {
			t.Errorf("test %d, got %v expected %v", i, res, tt.exp)
		}
	}
}