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vm: convert SIZE argument to bytearray

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This commit is contained in:
Evgenii Stratonikov 2019-09-12 11:53:11 +03:00
parent 9780889239
commit 9eca5ee317
2 changed files with 28 additions and 4 deletions
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5
pkg/vm/vm.go
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@ -759,10 +759,7 @@ func (v *VM) execute(ctx *Context, op Instruction) {
case SIZE:
elem := v.estack.Pop()
arr, ok := elem.value.Value().([]uint8)
if !ok {
panic("SIZE: item not of type []uint8")
}
arr := elem.Bytes()
v.estack.PushVal(len(arr))
case JMP, JMPIF, JMPIFNOT:

27
pkg/vm/vm_test.go
View file

@ -549,6 +549,33 @@ func TestPICKITEMByteArray(t *testing.T) {
assert.Equal(t, makeStackItem(2), vm.estack.Pop().value)
}
func TestSIZENoArgument(t *testing.T) {
prog := makeProgram(SIZE)
vm := load(prog)
vm.Run()
assert.Equal(t, true, vm.state.HasFlag(faultState))
}
func TestSIZEByteArray(t *testing.T) {
prog := makeProgram(SIZE)
vm := load(prog)
vm.estack.PushVal([]byte{0, 1})
vm.Run()
assert.Equal(t, false, vm.state.HasFlag(faultState))
assert.Equal(t, 1, vm.estack.Len())
assert.Equal(t, makeStackItem(2), vm.estack.Pop().value)
}
func TestSIZEBool(t *testing.T) {
prog := makeProgram(SIZE)
vm := load(prog)
vm.estack.PushVal(false)
vm.Run()
assert.Equal(t, false, vm.state.HasFlag(faultState))
assert.Equal(t, 1, vm.estack.Len())
assert.Equal(t, makeStackItem(1), vm.estack.Pop().value)
}
func TestSIGNNoArgument(t *testing.T) {
prog := makeProgram(SIGN)
vm := load(prog)