<?php
/**
 * Copyright (C) 2015-2016 Virgil Security Inc.
 *
 * Lead Maintainer: Virgil Security Inc. <support@virgilsecurity.com>
 *
 * 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.
 */

include_once "@PHP_MODULE_FILE_NAME@";

/**
 * @coversDefaultClass VirgilAsn1Writer
 */
class VirgilAsn1Writer_Test extends PHPUnit_Framework_TestCase {

    /**
     * @covers VirgilAsn1Writer::__construct
     */
    public function test_asn1_writer_creation() {
        $asn1Writer = new VirgilAsn1Writer();
        $this->assertInstanceOf("VirgilAsn1Writer", $asn1Writer);
        return $asn1Writer;
    }


    /**
     * @covers VirgilAsn1Writer::writeInteger
     * @depends test_asn1_writer_creation
     */
    public function test_asn1_write_integer(VirgilAsn1Writer $asn1Writer) {
        $expectedAsn1 = file_get_contents("data/asn1_integer.der");
        $asn1Writer->reset();
        $asn1Writer->writeInteger(7);
        $asn1 = $asn1Writer->finish();
        $this->assertEquals($expectedAsn1, $asn1);
    }

    /**
     * @covers VirgilAsn1Writer::writeOctetString
     * @depends test_asn1_writer_creation
     */
    public function test_asn1_write_octet_string(VirgilAsn1Writer $asn1Writer) {
        $expectedAsn1 = file_get_contents("data/asn1_octet_string.der");
        $asn1Writer->reset();
        $asn1Writer->writeOctetString(pack("H*", "00112233445566778899AABBCCDDEEFF"));
        $asn1 = $asn1Writer->finish();
        $this->assertEquals($expectedAsn1, $asn1);
    }

    /**
     * @covers VirgilAsn1Writer::writeUTF8String
     * @depends test_asn1_writer_creation
     */
    public function test_asn1_write_utf8_string(VirgilAsn1Writer $asn1Writer) {
        $expectedAsn1 = file_get_contents("data/asn1_utf8_string.der");
        $utf8StringValue = "Строка в UTF8";
        $asn1Writer->reset();
        $asn1Writer->writeUTF8String($utf8StringValue);
        $asn1 = $asn1Writer->finish();
        $this->assertEquals($expectedAsn1, $asn1);
    }

    /**
     * @covers VirgilAsn1Writer::writeInteger
     * @covers VirgilAsn1Writer::writeOctetString
     * @covers VirgilAsn1Writer::writeSequence
     * @depends test_asn1_writer_creation
     */
    public function test_asn1_write_sequence(VirgilAsn1Writer $asn1Writer) {
        $expectedAsn1 = file_get_contents("data/asn1_sequence.der");
        $asn1Writer->reset();
        $writtenBytes = 0;
        $writtenBytes += $asn1Writer->writeOctetString(pack("H*", "00112233445566778899AABBCCDDEEFF"));
        $writtenBytes += $asn1Writer->writeInteger(7);
        $writtenBytes += $asn1Writer->writeSequence($writtenBytes);

        $asn1 = $asn1Writer->finish();
        $this->assertEquals($expectedAsn1, $asn1);
    }

    /**
     * @covers VirgilAsn1Writer::writeInteger
     * @covers VirgilAsn1Writer::writeOctetString
     * @covers VirgilAsn1Writer::writeSequence
     * @depends test_asn1_writer_creation
     */
    public function test_asn1_write_complex(VirgilAsn1Writer $asn1Writer) {
        $expectedAsn1 = file_get_contents("data/asn1_complex.der");
        $asn1Writer->reset();

        $seqBytesCount = 0;
        $seqBytesCount += $asn1Writer->writeOctetString(pack("H*", "00112233445566778899AABBCCDDEEFF"));
        $seqBytesCount += $asn1Writer->writeInteger(7);
        $seqBytesCount += $asn1Writer->writeSequence($seqBytesCount);

        $seq2BytesCount = 0;
        $seq2BytesCount += $asn1Writer->writeInteger(7);
        $seq2BytesCount += $asn1Writer->writeOctetString(pack("H*", "00112233445566778899AABBCCDDEEFF"));
        $seq2BytesCount += $asn1Writer->writeSequence($seq2BytesCount);

        $asn1Writer->writeSequence($seqBytesCount + $seq2BytesCount);

        $asn1 = $asn1Writer->finish();
        $this->assertEquals($expectedAsn1, $asn1);
    }

    /**
     * @covers VirgilAsn1Writer::writeInteger
     * @covers VirgilAsn1Writer::writeOctetString
     * @covers VirgilAsn1Writer::writeSequence
     * @covers VirgilAsn1Writer::writeContextTag
     * @depends test_asn1_writer_creation
     */
    public function test_asn1_write_context_tag(VirgilAsn1Writer $asn1Writer) {
        $expectedAsn1 = file_get_contents("data/asn1_custom_tag.der");
        $asn1Writer->reset();

        $seqBytesCount = 0;
        $seqBytesCount += $asn1Writer->writeOctetString(pack("H*", "00112233445566778899AABBCCDDEEFF"));
        $seqBytesCount += $integerLen = $asn1Writer->writeInteger(7);
        $seqBytesCount += $asn1Writer->writeContextTag(0, $integerLen);

        $seqBytesCount += $asn1Writer->writeSequence($seqBytesCount);

        $asn1 = $asn1Writer->finish();
        $this->assertEquals($expectedAsn1, $asn1);
    }

}

?>