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emulator_test.go
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package main
import (
"bytes"
"testing"
)
func TestAddJmp(t *testing.T) {
e, _ := run(t, "guest/addjmp.bin", true)
assetRegister32(t, e, "EAX", EAX, 0x0029)
assetRegister32(t, e, "ECX", ECX, 0x0000)
assetRegister32(t, e, "EDX", EDX, 0x0080)
assetRegister32(t, e, "EBX", EBX, 0x0000)
assetRegister32(t, e, "ESI", ESI, 0x0000)
assetRegister32(t, e, "EDI", EDI, 0x0000)
assetRegister32(t, e, "EBP", EBP, 0x0000)
}
func TestCall(t *testing.T) {
e, _ := run(t, "guest/call-test.bin", true)
assetRegister32(t, e, "EAX", EAX, 0x00f1)
assetRegister32(t, e, "ECX", ECX, 0x011a)
assetRegister32(t, e, "EDX", EDX, 0x0080)
assetRegister32(t, e, "EBX", EBX, 0x0029)
assetRegister32(t, e, "ESI", ESI, 0x0000)
assetRegister32(t, e, "EDI", EDI, 0x0000)
assetRegister32(t, e, "EBP", EBP, 0x0000)
}
// func TestInc(t *testing.T) {
// e := run(t, "guest/inc.bin")
// assetRegister32(t, e, "EAX", EAX, 0x0000)
// assetRegister32(t, e, "ECX", ECX, 0x0000)
// assetRegister32(t, e, "EDX", EDX, 0x0000)
// assetRegister32(t, e, "EBX", EBX, 0x0000)
// assetRegister32(t, e, "ESI", ESI, 0x0000)
// assetRegister32(t, e, "EDI", EDI, 0x0000)
// assetRegister32(t, e, "EBP", EBP, 0x0000)
// }
func TestModRM(t *testing.T) {
e, _ := run(t, "guest/modrm-test.bin", true)
assetRegister32(t, e, "EAX", EAX, 0x0002)
assetRegister32(t, e, "ECX", ECX, 0x0000)
assetRegister32(t, e, "EDX", EDX, 0x0080)
assetRegister32(t, e, "EBX", EBX, 0x0000)
assetRegister32(t, e, "ESI", ESI, 0x0007)
assetRegister32(t, e, "EDI", EDI, 0x0008)
assetRegister32(t, e, "EBP", EBP, 0x7be0)
}
func Test132(t *testing.T) {
e, _ := run(t, "guest/test132.bin", true)
assetRegister32(t, e, "EAX", EAX, 0x0003)
assetRegister32(t, e, "ECX", ECX, 0x0000)
assetRegister32(t, e, "EDX", EDX, 0x0080)
assetRegister32(t, e, "EBX", EBX, 0x0000)
assetRegister32(t, e, "ESI", ESI, 0x0000)
assetRegister32(t, e, "EDI", EDI, 0x0000)
assetRegister32(t, e, "EBP", EBP, 0x0000)
}
func Test133(t *testing.T) {
e, _ := run(t, "guest/test133.bin", true)
assetRegister32(t, e, "EAX", EAX, 0x0037)
assetRegister32(t, e, "ECX", ECX, 0x0000)
assetRegister32(t, e, "EDX", EDX, 0x0080)
assetRegister32(t, e, "EBX", EBX, 0x0000)
assetRegister32(t, e, "ESI", ESI, 0x0000)
assetRegister32(t, e, "EDI", EDI, 0x0000)
assetRegister32(t, e, "EBP", EBP, 0x0000)
}
func Test134(t *testing.T) {
e, _ := run(t, "guest/test134.bin", true)
assetRegister32(t, e, "EAX", EAX, 0x0000)
}
func Test135(t *testing.T) {
e, _ := run(t, "guest/test135.bin", true)
assetRegister32(t, e, "EAX", EAX, 0x800fffff)
}
func Test141(t *testing.T) {
e, _ := run(t, "guest/test141.bin", true)
// expected := "A\x0a"
//
// if actual != expected {
// t.Fatalf("expected=%x actual=%x", expected, actual)
// }
assetRegister32(t, e, "EAX", EAX, 0x000a)
assetRegister32(t, e, "ECX", ECX, 0x0000)
assetRegister32(t, e, "EDX", EDX, 0x03f8)
assetRegister32(t, e, "EBX", EBX, 0x0000)
assetRegister32(t, e, "ESI", ESI, 0x0000)
assetRegister32(t, e, "EDI", EDI, 0x0000)
assetRegister32(t, e, "EBP", EBP, 0x0000)
}
func TestMbr(t *testing.T) {
_, actual := run(t, "guest/mbr.bin", false)
expected := "Congratulations!\x0d\x0a" +
"You are on a way to hacker!!\x0d\x0a" +
"The system has halted.\x0a"
if expected != actual {
t.Fatalf("\nexpected=%x\nactual =%x\n", expected, actual)
}
}
func run(t *testing.T, filename string, protectedEnable bool) (*Emulator, string) {
bin, err := LoadFile(filename)
if err != nil {
t.Fatal(err.Error())
}
reader := &bytes.Buffer{}
writer := &bytes.Buffer{}
e := NewEmulator(0x7c00+0x10000, 0x7c00, 0x7c00, protectedEnable, true, reader, writer, map[uint64]string{})
// for i := uint32(0); i < 0x7c00 + 0x10000; i++ {
// e.memory[i] = 0
// }
for i := 0; i < len(bin); i++ {
e.memory[uint32(i+0x7c00)] = bin[i]
}
for e.eip < 0x7c00+0x10000 {
err := e.execInst()
if err != nil {
t.Fatal(err.Error())
}
if e.eip == 0 || e.eip == 0x7c00 {
break
}
}
return e, writer.String()
}
func assetRegister32(t *testing.T, e *Emulator, name string, index uint8, expected uint32) {
if e.getRegister32(index) != expected {
t.Fatalf("Bad %s, expected=%08x, actual=%08x\n",
name, expected, e.getRegister32(index))
}
}