forked from TrueCloudLab/neoneo-go
65 lines
1.5 KiB
Go
65 lines
1.5 KiB
Go
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package vm
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import (
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"bytes"
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"encoding/binary"
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"testing"
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"github.com/stretchr/testify/assert"
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)
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func TestEmitInt(t *testing.T) {
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buf := new(bytes.Buffer)
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EmitInt(buf, 10)
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assert.Equal(t, Opcode(buf.Bytes()[0]), Opush10)
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buf.Reset()
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EmitInt(buf, 100)
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assert.Equal(t, buf.Bytes()[0], uint8(1))
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assert.Equal(t, buf.Bytes()[1], uint8(100))
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buf.Reset()
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EmitInt(buf, 1000)
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assert.Equal(t, buf.Bytes()[0], uint8(2))
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assert.Equal(t, buf.Bytes()[1:3], []byte{0xe8, 0x03})
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}
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func TestEmitBool(t *testing.T) {
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buf := new(bytes.Buffer)
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EmitBool(buf, true)
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EmitBool(buf, false)
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assert.Equal(t, Opcode(buf.Bytes()[0]), Opush1)
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assert.Equal(t, Opcode(buf.Bytes()[1]), Opush0)
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}
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func TestEmitString(t *testing.T) {
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buf := new(bytes.Buffer)
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str := "City Of Zion"
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EmitString(buf, str)
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assert.Equal(t, buf.Len(), len(str)+1)
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assert.Equal(t, buf.Bytes()[1:], []byte(str))
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}
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func TestEmitSyscall(t *testing.T) {
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syscalls := []string{
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"Neo.Runtime.Log",
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"Neo.Runtime.Notify",
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"Neo.Runtime.Whatever",
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}
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buf := new(bytes.Buffer)
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for _, syscall := range syscalls {
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EmitSyscall(buf, syscall)
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assert.Equal(t, Opcode(buf.Bytes()[0]), Osyscall)
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assert.Equal(t, buf.Bytes()[1], uint8(len(syscall)))
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assert.Equal(t, buf.Bytes()[2:], []byte(syscall))
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buf.Reset()
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}
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}
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func TestEmitCall(t *testing.T) {
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buf := new(bytes.Buffer)
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EmitCall(buf, Ojmp, 100)
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assert.Equal(t, Opcode(buf.Bytes()[0]), Ojmp)
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label := binary.LittleEndian.Uint16(buf.Bytes()[1:3])
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assert.Equal(t, label, uint16(100))
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}
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