// Copyright 2018 The dexon-consensus-core Authors
// This file is part of the dexon-consensus-core library.
//
// The dexon-consensus-core 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 dexon-consensus-core 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 dexon-consensus-core library. If not, see
// <http://www.gnu.org/licenses/>.
package types
import (
"sort"
"testing"
"github.com/stretchr/testify/suite"
)
type PositionTestSuite struct {
suite.Suite
}
func (s *PositionTestSuite) TestNewer() {
pos := Position{
Round: 1,
ChainID: 1,
Height: 1,
}
s.Panics(func() {
pos.Newer(&Position{ChainID: 2})
})
s.False(pos.Newer(&Position{
Round: 2,
ChainID: 1,
Height: 0,
}))
s.False(pos.Newer(&Position{
Round: 1,
ChainID: 1,
Height: 2,
}))
s.True(pos.Newer(&Position{
Round: 0,
ChainID: 1,
Height: 100,
}))
s.True(pos.Newer(&Position{
Round: 1,
ChainID: 1,
Height: 0,
}))
}
func (s *PositionTestSuite) TestSearchInAsendingOrder() {
positions := []*Position{
&Position{Round: 0, Height: 1},
&Position{Round: 0, Height: 2},
&Position{Round: 0, Height: 3},
&Position{Round: 2, Height: 0},
&Position{Round: 2, Height: 1},
&Position{Round: 2, Height: 2},
&Position{Round: 4, Height: 0},
&Position{Round: 4, Height: 1},
&Position{Round: 4, Height: 2},
}
search := func(pos *Position) int {
return sort.Search(len(positions), func(i int) bool {
return positions[i].Newer(pos) || positions[i].Equal(pos)
})
}
s.Equal(0, search(&Position{Round: 0, Height: 0}))
s.Equal(len(positions), search(&Position{Round: 4, Height: 4}))
s.Equal(0, search(&Position{Round: 0, Height: 1}))
s.Equal(len(positions)-1, search(&Position{Round: 4, Height: 2}))
s.Equal(2, search(&Position{Round: 0, Height: 3}))
}
func (s *PositionTestSuite) TestEqual() {
pos := Position{}
s.Panics(func() {
pos.Equal(&Position{ChainID: 1})
})
s.True(pos.Equal(&Position{}))
s.False(pos.Equal(&Position{Round: 1}))
s.False(pos.Equal(&Position{Height: 1}))
}
func TestPosition(t *testing.T) {
suite.Run(t, new(PositionTestSuite))
}
