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50 lines
1.1 KiB
50 lines
1.1 KiB
package p2p
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import (
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"bytes"
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"os"
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"path/filepath"
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"testing"
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"github.com/stretchr/testify/assert"
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cmn "github.com/tendermint/tendermint/libs/common"
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)
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func TestLoadOrGenNodeKey(t *testing.T) {
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filePath := filepath.Join(os.TempDir(), cmn.RandStr(12)+"_peer_id.json")
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nodeKey, err := LoadOrGenNodeKey(filePath)
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assert.Nil(t, err)
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nodeKey2, err := LoadOrGenNodeKey(filePath)
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assert.Nil(t, err)
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assert.Equal(t, nodeKey, nodeKey2)
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}
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//----------------------------------------------------------
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func padBytes(bz []byte, targetBytes int) []byte {
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return append(bz, bytes.Repeat([]byte{0xFF}, targetBytes-len(bz))...)
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}
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func TestPoWTarget(t *testing.T) {
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targetBytes := 20
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cases := []struct {
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difficulty uint
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target []byte
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}{
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{0, padBytes([]byte{}, targetBytes)},
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{1, padBytes([]byte{127}, targetBytes)},
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{8, padBytes([]byte{0}, targetBytes)},
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{9, padBytes([]byte{0, 127}, targetBytes)},
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{10, padBytes([]byte{0, 63}, targetBytes)},
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{16, padBytes([]byte{0, 0}, targetBytes)},
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{17, padBytes([]byte{0, 0, 127}, targetBytes)},
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}
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for _, c := range cases {
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assert.Equal(t, MakePoWTarget(c.difficulty, 20*8), c.target)
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}
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}
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