forked from TrueCloudLab/neoneo-go
70 lines
1.5 KiB
Go
70 lines
1.5 KiB
Go
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package vm
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import (
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"testing"
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"github.com/nspcc-dev/neo-go/pkg/util"
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"github.com/nspcc-dev/neo-go/pkg/vm/opcode"
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"github.com/stretchr/testify/require"
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)
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func TestInvocationTree(t *testing.T) {
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script := []byte{
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byte(opcode.PUSH3), byte(opcode.DEC),
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byte(opcode.DUP), byte(opcode.PUSH0), byte(opcode.JMPEQ), (2 + 2 + 2 + 6 + 1),
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byte(opcode.CALL), (2 + 2), // CALL shouldn't affect invocation tree.
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byte(opcode.JMP), 0xf9, // DEC
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byte(opcode.SYSCALL), 0, 0, 0, 0, byte(opcode.DROP),
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byte(opcode.RET),
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byte(opcode.RET),
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byte(opcode.PUSHINT8), 0xff,
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}
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cnt := 0
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v := newTestVM()
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v.SyscallHandler = func(v *VM, _ uint32) error {
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if v.Istack().Len() > 4 { // top -> call -> syscall -> call -> syscall -> ...
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v.Estack().PushVal(1)
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return nil
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}
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cnt++
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v.LoadScriptWithHash(script, util.Uint160{byte(cnt)}, 0)
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return nil
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}
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v.EnableInvocationTree()
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v.LoadScript(script)
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topHash := v.Context().ScriptHash()
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require.NoError(t, v.Run())
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res := &InvocationTree{
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Calls: []*InvocationTree{{
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Current: topHash,
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Calls: []*InvocationTree{
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{
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Current: util.Uint160{1},
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Calls: []*InvocationTree{
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{
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Current: util.Uint160{2},
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},
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{
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Current: util.Uint160{3},
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},
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},
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},
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{
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Current: util.Uint160{4},
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Calls: []*InvocationTree{
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{
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Current: util.Uint160{5},
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},
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{
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Current: util.Uint160{6},
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},
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},
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},
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},
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}},
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}
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require.Equal(t, res, v.GetInvocationTree())
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}
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