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105 lines
2.5 KiB
105 lines
2.5 KiB
package types
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import (
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"testing"
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"github.com/stretchr/testify/assert"
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cmn "github.com/tendermint/go-common"
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ctest "github.com/tendermint/go-common/test"
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wire "github.com/tendermint/go-wire"
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)
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func makeTxs(cnt, size int) Txs {
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txs := make(Txs, cnt)
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for i := 0; i < cnt; i++ {
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txs[i] = cmn.RandBytes(size)
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}
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return txs
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}
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func randInt(low, high int) int {
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off := cmn.RandInt() % (high - low)
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return low + off
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}
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func TestValidTxProof(t *testing.T) {
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assert := assert.New(t)
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cases := []struct {
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txs Txs
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}{
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{Txs{{1, 4, 34, 87, 163, 1}}},
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{Txs{{5, 56, 165, 2}, {4, 77}}},
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{Txs{Tx("foo"), Tx("bar"), Tx("baz")}},
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{makeTxs(20, 5)},
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{makeTxs(7, 81)},
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{makeTxs(61, 15)},
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}
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for h, tc := range cases {
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txs := tc.txs
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root := txs.Hash()
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// make sure valid proof for every tx
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for i := range txs {
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leaf := txs[i]
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leafHash := leaf.Hash()
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proof := txs.Proof(i)
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assert.Equal(i, proof.Index, "%d: %d", h, i)
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assert.Equal(len(txs), proof.Total, "%d: %d", h, i)
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assert.Equal(root, proof.RootHash, "%d: %d", h, i)
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assert.Equal(leaf, proof.Data, "%d: %d", h, i)
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assert.Equal(leafHash, proof.LeafHash(), "%d: %d", h, i)
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assert.Nil(proof.Validate(root), "%d: %d", h, i)
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assert.NotNil(proof.Validate([]byte("foobar")), "%d: %d", h, i)
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// read-write must also work
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var p2 TxProof
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bin := wire.BinaryBytes(proof)
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err := wire.ReadBinaryBytes(bin, &p2)
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if assert.Nil(err, "%d: %d: %+v", h, i, err) {
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assert.Nil(p2.Validate(root), "%d: %d", h, i)
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}
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}
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}
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}
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func TestTxProofUnchangable(t *testing.T) {
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// run the other test a bunch...
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for i := 0; i < 4; i++ {
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testTxProofUnchangable(t)
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}
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}
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func testTxProofUnchangable(t *testing.T) {
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assert := assert.New(t)
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// make some proof
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txs := makeTxs(randInt(2, 100), randInt(16, 128))
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root := txs.Hash()
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i := randInt(0, len(txs)-1)
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proof := txs.Proof(i)
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// make sure it is valid to start with
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assert.Nil(proof.Validate(root))
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bin := wire.BinaryBytes(proof)
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// try mutating the data and make sure nothing breaks
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for j := 0; j < 50; j++ {
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bad := ctest.MutateByteSlice(bin)
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assertBadProof(t, root, bad)
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}
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}
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// this make sure the proof doesn't deserialize into something valid
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func assertBadProof(t *testing.T, root []byte, bad []byte) {
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// we kind of expect this to panic sometimes... (bad, go-wire, bad)
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defer func() {
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recover()
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}()
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var proof TxProof
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err := wire.ReadBinaryBytes(bad, &proof)
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if err == nil {
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err = proof.Validate(root)
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assert.NotNil(t, err, "%+v", err)
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}
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}
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