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// Copyright (C) 2019-2024 Algorand, Inc.
// This file is part of go-algorand
//
// go-algorand is free software: you can redistribute it and/or modify
// it under the terms of the GNU Affero General Public License as
// published by the Free Software Foundation, either version 3 of the
// License, or (at your option) any later version.
//
// go-algorand 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 Affero General Public License for more details.
//
// You should have received a copy of the GNU Affero General Public License
// along with go-algorand. If not, see <https://www.gnu.org/licenses/>.
package transactions
import (
"fmt"
"testing"
"github.com/algorand/go-algorand/data/basics"
"github.com/algorand/go-algorand/protocol"
"github.com/algorand/go-algorand/test/partitiontest"
"github.com/stretchr/testify/require"
)
func TestEvalDeltaEqual(t *testing.T) {
partitiontest.PartitionTest(t)
a := require.New(t)
d1 := EvalDelta{}
d2 := EvalDelta{}
a.True(d1.Equal(d2))
d2 = EvalDelta{
GlobalDelta: nil,
LocalDeltas: nil,
Logs: nil,
}
a.True(d1.Equal(d2))
d2 = EvalDelta{
GlobalDelta: basics.StateDelta{},
LocalDeltas: map[uint64]basics.StateDelta{},
Logs: []string{},
}
a.True(d1.Equal(d2))
d2 = EvalDelta{
GlobalDelta: basics.StateDelta{"test": {Action: basics.SetUintAction, Uint: 0}},
}
a.False(d1.Equal(d2))
d1 = EvalDelta{
GlobalDelta: basics.StateDelta{"test": {Action: basics.SetUintAction, Uint: 0}},
}
a.True(d1.Equal(d2))
d2 = EvalDelta{
LocalDeltas: map[uint64]basics.StateDelta{
0: {"test": {Action: basics.SetUintAction, Uint: 0}},
},
}
a.False(d1.Equal(d2))
d1 = EvalDelta{
LocalDeltas: map[uint64]basics.StateDelta{
0: {"test": {Action: basics.SetUintAction, Uint: 1}},
},
}
a.False(d1.Equal(d2))
d2 = EvalDelta{
LocalDeltas: map[uint64]basics.StateDelta{
0: {"test": {Action: basics.SetUintAction, Uint: 1}},
},
}
a.True(d1.Equal(d2))
d1 = EvalDelta{
LocalDeltas: map[uint64]basics.StateDelta{
0: {"test": {Action: basics.SetBytesAction, Bytes: "val"}},
},
}
d2 = EvalDelta{
LocalDeltas: map[uint64]basics.StateDelta{
0: {"test": {Action: basics.SetBytesAction, Bytes: "val"}},
},
}
a.True(d1.Equal(d2))
d2 = EvalDelta{
LocalDeltas: map[uint64]basics.StateDelta{
0: {"test": {Action: basics.SetBytesAction, Bytes: "val1"}},
},
}
a.False(d1.Equal(d2))
d2 = EvalDelta{
LocalDeltas: map[uint64]basics.StateDelta{
1: {"test": {Action: basics.SetBytesAction, Bytes: "val"}},
},
}
a.False(d1.Equal(d2))
d2 = EvalDelta{
Logs: []string{"val"},
}
a.False(d1.Equal(d2))
d1 = EvalDelta{
Logs: []string{"val2"},
}
a.False(d1.Equal(d2))
d1 = EvalDelta{
Logs: []string{"val", "val2"},
}
a.False(d1.Equal(d2))
d1 = EvalDelta{
Logs: []string{"val"},
}
a.True(d1.Equal(d2))
// Test inner transaction equality
d1 = EvalDelta{
InnerTxns: []SignedTxnWithAD{},
}
d2 = EvalDelta{
InnerTxns: nil,
}
a.True(d1.Equal(d2))
// Test inner transaction equality
d1 = EvalDelta{
InnerTxns: []SignedTxnWithAD{{
SignedTxn: SignedTxn{
Lsig: LogicSig{
Logic: []byte{0x01},
},
},
}},
}
d2 = EvalDelta{
InnerTxns: []SignedTxnWithAD{{
SignedTxn: SignedTxn{
Lsig: LogicSig{
Logic: []byte{0x01},
},
},
}},
}
a.True(d1.Equal(d2))
d2 = EvalDelta{
InnerTxns: []SignedTxnWithAD{{
SignedTxn: SignedTxn{
Lsig: LogicSig{
Logic: []byte{0x02},
Args: [][]byte{},
},
},
}},
}
a.False(d1.Equal(d2))
d1 = EvalDelta{
InnerTxns: []SignedTxnWithAD{{
SignedTxn: SignedTxn{
Txn: Transaction{
Type: protocol.TxType("pay"),
},
},
}},
}
d2 = EvalDelta{
InnerTxns: []SignedTxnWithAD{{
SignedTxn: SignedTxn{
Txn: Transaction{
Type: protocol.TxType("axfer"),
},
},
}},
}
a.False(d1.Equal(d2))
}
// TestUnchangedAllocBounds ensure that the allocbounds on EvalDelta have not
// changed. If they change, EvalDelta.checkAllocBounds must be changed, or at
// least reconsidered, as well. We must give plenty of thought to whether a new
// allocbound, used by new versions, is compatible with old code. If the change
// can only show up in new protocol versions, it should be ok. But if we change
// a bound, it will go into effect immediately, not with Protocol upgrade. So we
// must be extremely careful that old protocol versions can not emit messages
// that take advnatage of a new, bigger bound. (Or, if the bound is *lowered* it
// had better be the case that such messages cannot be emitted in old code.)
func TestUnchangedAllocBounds(t *testing.T) {
partitiontest.PartitionTest(t)
delta := &EvalDelta{}
max := 256 // Hardcodes config.MaxEvalDeltaAccounts
for i := 0; i < max; i++ {
delta.InnerTxns = append(delta.InnerTxns, SignedTxnWithAD{})
msg := delta.MarshalMsg(nil)
_, err := delta.UnmarshalMsg(msg)
require.NoError(t, err)
}
delta.InnerTxns = append(delta.InnerTxns, SignedTxnWithAD{})
msg := delta.MarshalMsg(nil)
_, err := delta.UnmarshalMsg(msg)
require.Error(t, err)
delta = &EvalDelta{}
max = 2048 // Hardcodes config.MaxLogCalls, currently MaxAppProgramLen
for i := 0; i < max; i++ {
delta.Logs = append(delta.Logs, "junk")
msg := delta.MarshalMsg(nil)
_, err := delta.UnmarshalMsg(msg)
require.NoError(t, err)
}
delta.Logs = append(delta.Logs, "junk")
msg = delta.MarshalMsg(nil)
_, err = delta.UnmarshalMsg(msg)
require.Error(t, err)
delta = &EvalDelta{}
max = 256 // Hardcodes config.MaxInnerTransactionsPerDelta
for i := 0; i < max; i++ {
delta.InnerTxns = append(delta.InnerTxns, SignedTxnWithAD{})
msg := delta.MarshalMsg(nil)
_, err := delta.UnmarshalMsg(msg)
require.NoError(t, err)
}
delta.InnerTxns = append(delta.InnerTxns, SignedTxnWithAD{})
msg = delta.MarshalMsg(nil)
_, err = delta.UnmarshalMsg(msg)
require.Error(t, err)
// This one appears wildly conservative. The real max is something like
// MaxAppTxnAccounts (4) + 1, since the key must be an index in the static
// array of touchable accounts.
delta = &EvalDelta{LocalDeltas: make(map[uint64]basics.StateDelta)}
max = 2048 // Hardcodes config.MaxEvalDeltaAccounts
for i := 0; i < max; i++ {
delta.LocalDeltas[uint64(i)] = basics.StateDelta{}
msg := delta.MarshalMsg(nil)
_, err := delta.UnmarshalMsg(msg)
require.NoError(t, err)
}
delta.LocalDeltas[uint64(max)] = basics.StateDelta{}
msg = delta.MarshalMsg(nil)
_, err = delta.UnmarshalMsg(msg)
require.Error(t, err)
// This one *might* be wildly conservative. Only 64 keys can be set in
// globals, but I don't know what happens if you set and delete 65 (or way
// more) keys in a single transaction.
delta = &EvalDelta{GlobalDelta: make(basics.StateDelta)}
max = 2048 // Hardcodes config.MaxStateDeltaKeys
for i := 0; i < max; i++ {
delta.GlobalDelta[fmt.Sprintf("%d", i)] = basics.ValueDelta{}
msg := delta.MarshalMsg(nil)
_, err := delta.UnmarshalMsg(msg)
require.NoError(t, err)
}
delta.GlobalDelta[fmt.Sprintf("%d", max)] = basics.ValueDelta{}
msg = delta.MarshalMsg(nil)
_, err = delta.UnmarshalMsg(msg)
require.Error(t, err)
}
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