<?php
/**
 * Copyright (C) 2015-2018 Virgil Security Inc.
 *
 * All rights reserved.
 *
 * Redistribution and use in source and binary forms, with or without
 * modification, are permitted provided that the following conditions are
 * met:
 *
 *     (1) Redistributions of source code must retain the above copyright
 *     notice, this list of conditions and the following disclaimer.
 *
 *     (2) Redistributions in binary form must reproduce the above copyright
 *     notice, this list of conditions and the following disclaimer in
 *     the documentation and/or other materials provided with the
 *     distribution.
 *
 *     (3) Neither the name of the copyright holder nor the names of its
 *     contributors may be used to endorse or promote products derived from
 *     this software without specific prior written permission.
 *
 * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ''AS IS'' AND ANY EXPRESS OR
 * IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED
 * WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE
 * DISCLAIMED. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT,
 * INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES
 * (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR
 * SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT,
 * STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING
 * IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
 * POSSIBILITY OF SUCH DAMAGE.
 *
 * Lead Maintainer: Virgil Security Inc. <support@virgilsecurity.com>
 */

include_once "@PHP_MODULE_FILE_NAME@";


/**
 * @coversDefaultClass VirgilAsn1Reader
 */
class VirgilAsn1Reader_Test extends PHPUnit\Framework\TestCase {

    /**
     * @covers VirgilAsn1Reader::__construct
     */
    public function test_asn1_reader_creation() {
        $asn1Reader = new VirgilAsn1Reader();
        $this->assertInstanceOf("VirgilAsn1Reader", $asn1Reader);
        return $asn1Reader;
    }


    /**
     * @covers VirgilAsn1Reader::readInteger
     * @depends test_asn1_reader_creation
     */
    public function test_asn1_read_integer(VirgilAsn1Reader $asn1Reader) {
        $expectedIntegerValue = 7;
        $asn1 = file_get_contents("data/asn1_integer.der");
        $asn1Reader->reset($asn1);
        $integerValue = $asn1Reader->readInteger();
        $this->assertEquals($expectedIntegerValue, $integerValue);
    }

    /**
     * @covers VirgilAsn1Reader::readOctetString
     * @depends test_asn1_reader_creation
     */
    public function test_asn1_read_octet_string(VirgilAsn1Reader $asn1Reader) {
        $expectedOctedStringValue = pack("H*", "00112233445566778899AABBCCDDEEFF");
        $asn1 = file_get_contents("data/asn1_octet_string.der");
        $asn1Reader->reset($asn1);
        $octedStringValue = $asn1Reader->readOctetString();
        $this->assertEquals($expectedOctedStringValue, $octedStringValue);
    }

    /**
     * @covers VirgilAsn1Reader::readUTF8String
     * @depends test_asn1_reader_creation
     */
    public function test_asn1_read_utf8_string(VirgilAsn1Reader $asn1Reader) {
        $expectedUTF8StringValue = "Строка в UTF8";
        $asn1 = file_get_contents("data/asn1_utf8_string.der");
        $asn1Reader->reset($asn1);
        $utf8StringValue = $asn1Reader->readUTF8String();
        $this->assertEquals($expectedUTF8StringValue, $utf8StringValue);
    }

    /**
     * @covers VirgilAsn1Reader::readInteger
     * @covers VirgilAsn1Reader::readOctetString
     * @covers VirgilAsn1Reader::readSequence
     * @depends test_asn1_reader_creation
     */
    public function test_asn1_read_sequence(VirgilAsn1Reader $asn1Reader) {
        $expectedIntegerValue = 7;
        $expectedOctedStringValue = pack("H*", "00112233445566778899AABBCCDDEEFF");

        $asn1 = file_get_contents("data/asn1_sequence.der");
        $asn1Reader->reset($asn1);

        $asn1Reader->readSequence();

        $integerValue = $asn1Reader->readInteger();
        $this->assertEquals($expectedIntegerValue, $integerValue);

        $octedStringValue = $asn1Reader->readOctetString();
        $this->assertEquals($expectedOctedStringValue, $octedStringValue);
    }

    /**
     * @covers VirgilAsn1Reader::readInteger
     * @covers VirgilAsn1Reader::readOctetString
     * @covers VirgilAsn1Reader::readSequence
     * @depends test_asn1_reader_creation
     */
    public function test_asn1_read_complex(VirgilAsn1Reader $asn1Reader) {
        $expectedIntegerValue = 7;
        $expectedOctedStringValue = pack("H*", "00112233445566778899AABBCCDDEEFF");

        $asn1 = file_get_contents("data/asn1_complex.der");
        $asn1Reader->reset($asn1);

        $asn1Reader->readSequence();

        $asn1Reader->readSequence();
        $this->assertEquals($expectedOctedStringValue, $asn1Reader->readOctetString());
        $this->assertEquals($expectedIntegerValue, $asn1Reader->readInteger());

        $asn1Reader->readSequence();
        $this->assertEquals($expectedIntegerValue, $asn1Reader->readInteger());
        $this->assertEquals($expectedOctedStringValue, $asn1Reader->readOctetString());
    }

    /**
     * @covers VirgilAsn1Reader::readInteger
     * @covers VirgilAsn1Reader::readOctetString
     * @covers VirgilAsn1Reader::readSequence
     * @covers VirgilAsn1Reader::readContextTag
     * @depends test_asn1_reader_creation
     */
    public function test_asn1_read_context_tag(VirgilAsn1Reader $asn1Reader) {
        $expectedIntegerValue = 7;
        $expectedOctedStringValue = pack("H*", "00112233445566778899AABBCCDDEEFF");

        $asn1 = file_get_contents("data/asn1_custom_tag.der");
        $asn1Reader->reset($asn1);

        $asn1Reader->readSequence();
        $this->assertEquals(0, $asn1Reader->readContextTag(1));
        $this->assertEquals(3, $asn1Reader->readContextTag(0));
        $this->assertEquals($expectedIntegerValue, $asn1Reader->readInteger());
        $this->assertEquals($expectedOctedStringValue, $asn1Reader->readOctetString());
    }

}

?>