public function testSetOpcode()
{
$instr = new Instruction();
$instr->setOpcode('90');
$this->assertEquals('90', $instr->getOpcode());
$this->assertEquals('90', $instr->assemble());
}
public function testAssembleX8664Offset()
{
$nopInstr1 = new X8664Nop();
$nopInstr2 = new X8664Nop();
$bInstr1 = new BaseInstruction();
$retInstr = new X8664Ret();
$bInstr1->setOpcode('909090');
$bInstr1->setLen(3);
$asm = new Assembly();
$asm->addInstruction($nopInstr1);
$asm->addInstruction($nopInstr2);
$asm->addInstruction($bInstr1);
$asm->addInstruction($retInstr);
$this->assertEquals(0, $nopInstr1->getOffset());
$this->assertEquals(1, $nopInstr2->getOffset());
$this->assertEquals(2, $bInstr1->getOffset());
$this->assertEquals(5, $retInstr->getOffset());
$bInstr1->setOpcode('90');
$bInstr1->setLen(1);
$this->assertEquals(0, $nopInstr1->getOffset());
$this->assertEquals(1, $nopInstr2->getOffset());
$this->assertEquals(2, $bInstr1->getOffset());
$this->assertEquals(3, $retInstr->getOffset());
$bInstr1->setOpcode('90909090');
$bInstr1->setLen(4);
$this->assertEquals(0, $nopInstr1->getOffset());
$this->assertEquals(1, $nopInstr2->getOffset());
$this->assertEquals(2, $bInstr1->getOffset());
$this->assertEquals(6, $retInstr->getOffset());
}
/**
* @dataProvider x8664ObjectProvider
*/
public function test8664Object($offsetJmp, $offsetInstr, $expected)
{
$instr1 = new Instruction();
$instr1->setOffset($offsetInstr);
$jmp1 = new X8664Jmp($instr1);
$jmp1->setOffset($offsetJmp);
$opcode = unpack('H*', $jmp1->assemble());
$opcode = $opcode[1];
$this->assertEquals($expected, $opcode);
}