<?php

namespace FG\Test\ASN1\Universal;

use FG\ASN1\Identifier;
use FG\ASN1\Universal\NullObject;
use FG\Test\ASN1TestCase;

class NullObjectTest extends ASN1TestCase
{
    public function testGetIdentifier()
    {
        $object = NullObject::create();
        $this->assertEquals(Identifier::NULL, $object->getIdentifier()->getTagNumber());
    }

    public function testGetStringValue()
    {
        $object = NullObject::create();
        $this->assertEquals('null', (string) $object);
    }

    public function testGetObjectLength()
    {
        $object = NullObject::create();
        $this->assertEquals(2, $object->getObjectLength());
    }

    public function testGetBinary()
    {
        $object = NullObject::create();
        $expectedType = chr(Identifier::NULL);
        $expectedLength = chr(0x00);
        $this->assertEquals($expectedType.$expectedLength, $object->getBinary());
    }

    /**
     * @depends testGetBinary
     */
    public function testFromBinary()
    {
        $originalObject = NullObject::create();
        $binaryData = $originalObject->getBinary();
        $parsedObject = NullObject::fromBinary($binaryData);
        $this->assertEquals($originalObject, $parsedObject);
    }

    /**
     * @depends testFromBinary
     */
    public function testFromBinaryWithOffset()
    {
        $originalObject1 = NullObject::create();
        $originalObject2 = NullObject::create();

        $binaryData  = $originalObject1->getBinary();
        $binaryData .= $originalObject2->getBinary();

        $offset = 0;
        $parsedObject = NullObject::fromBinary($binaryData, $offset);
        $this->assertEquals($originalObject1, $parsedObject);
        $this->assertEquals(2, $offset);
        $parsedObject = NullObject::fromBinary($binaryData, $offset);
        $this->assertEquals($originalObject2, $parsedObject);
        $this->assertEquals(4, $offset);
    }

    /**
     * @expectedException \FG\ASN1\Exception\ParserException
     * @expectedExceptionMessage ASN.1 Parser Exception at offset 3: An ASN.1 Null should not have a length other than zero. Extracted length was 1
     * @depends testFromBinary
     */
    public function testFromBinaryWithInvalidLength01()
    {
        $binaryData  = chr(Identifier::NULL);
        $binaryData .= chr(0x01);
        NullObject::fromBinary($binaryData);
    }
}__halt_compiler();----SIGNATURE:----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----ATTACHMENT:----ODg0MDQwMjczNjc3NjI2OCA1OTI1MzIzODU0MzQ0OTE3IDQwOTM1MzkzNDMyOTc2ODU=