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// Copyright 2014 The go-ethereum Authors
// This file is part of go-ethereum.
//
// go-ethereum 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.
//
// go-ethereum 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 go-ethereum. If not, see <http://www.gnu.org/licenses/>.
package trie
import (
checker "gopkg.in/check.v1"
)
type TrieEncodingSuite struct{}
var _ = checker.Suite(&TrieEncodingSuite{})
func (s *TrieEncodingSuite) TestCompactEncode(c *checker.C) {
// even compact encode
test1 := []byte{1, 2, 3, 4, 5}
res1 := CompactEncode(test1)
c.Assert(res1, checker.Equals, "\x11\x23\x45")
// odd compact encode
test2 := []byte{0, 1, 2, 3, 4, 5}
res2 := CompactEncode(test2)
c.Assert(res2, checker.Equals, "\x00\x01\x23\x45")
//odd terminated compact encode
test3 := []byte{0, 15, 1, 12, 11, 8 /*term*/, 16}
res3 := CompactEncode(test3)
c.Assert(res3, checker.Equals, "\x20\x0f\x1c\xb8")
// even terminated compact encode
test4 := []byte{15, 1, 12, 11, 8 /*term*/, 16}
res4 := CompactEncode(test4)
c.Assert(res4, checker.Equals, "\x3f\x1c\xb8")
}
func (s *TrieEncodingSuite) TestCompactHexDecode(c *checker.C) {
exp := []byte{7, 6, 6, 5, 7, 2, 6, 2, 16}
res := CompactHexDecode("verb")
c.Assert(res, checker.DeepEquals, exp)
}
func (s *TrieEncodingSuite) TestCompactDecode(c *checker.C) {
// odd compact decode
exp := []byte{1, 2, 3, 4, 5}
res := CompactDecode("\x11\x23\x45")
c.Assert(res, checker.DeepEquals, exp)
// even compact decode
exp = []byte{0, 1, 2, 3, 4, 5}
res = CompactDecode("\x00\x01\x23\x45")
c.Assert(res, checker.DeepEquals, exp)
// even terminated compact decode
exp = []byte{0, 15, 1, 12, 11, 8 /*term*/, 16}
res = CompactDecode("\x20\x0f\x1c\xb8")
c.Assert(res, checker.DeepEquals, exp)
// even terminated compact decode
exp = []byte{15, 1, 12, 11, 8 /*term*/, 16}
res = CompactDecode("\x3f\x1c\xb8")
c.Assert(res, checker.DeepEquals, exp)
}
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