<?php

class Swift_Mime_Headers_IdentificationHeaderTest extends PHPUnit_Framework_TestCase
{
    public function testTypeIsIdHeader()
    {
        $header = $this->_getHeader('Message-ID');
        $this->assertEquals(Swift_Mime_Header::TYPE_ID, $header->getFieldType());
    }

    public function testValueMatchesMsgIdSpec()
    {
        /* -- RFC 2822, 3.6.4.
         message-id      =       "Message-ID:" msg-id CRLF

         in-reply-to     =       "In-Reply-To:" 1*msg-id CRLF

         references      =       "References:" 1*msg-id CRLF

         msg-id          =       [CFWS] "<" id-left "@" id-right ">" [CFWS]

         id-left         =       dot-atom-text / no-fold-quote / obs-id-left

         id-right        =       dot-atom-text / no-fold-literal / obs-id-right

         no-fold-quote   =       DQUOTE *(qtext / quoted-pair) DQUOTE

         no-fold-literal =       "[" *(dtext / quoted-pair) "]"
         */

        $header = $this->_getHeader('Message-ID');
        $header->setId('id-left@id-right');
        $this->assertEquals('<id-left@id-right>', $header->getFieldBody());
    }

    public function testIdCanBeRetrievedVerbatim()
    {
        $header = $this->_getHeader('Message-ID');
        $header->setId('id-left@id-right');
        $this->assertEquals('id-left@id-right', $header->getId());
    }

    public function testMultipleIdsCanBeSet()
    {
        $header = $this->_getHeader('References');
        $header->setIds(array('a@b', 'x@y'));
        $this->assertEquals(array('a@b', 'x@y'), $header->getIds());
    }

    public function testSettingMultipleIdsProducesAListValue()
    {
        /* -- RFC 2822, 3.6.4.
         The "References:" and "In-Reply-To:" field each contain one or more
         unique message identifiers, optionally separated by CFWS.

         .. SNIP ..

         in-reply-to     =       "In-Reply-To:" 1*msg-id CRLF

         references      =       "References:" 1*msg-id CRLF
         */

        $header = $this->_getHeader('References');
        $header->setIds(array('a@b', 'x@y'));
        $this->assertEquals('<a@b> <x@y>', $header->getFieldBody());
    }

    public function testIdLeftCanBeQuoted()
    {
        /* -- RFC 2822, 3.6.4.
         id-left         =       dot-atom-text / no-fold-quote / obs-id-left
         */

        $header = $this->_getHeader('References');
        $header->setId('"ab"@c');
        $this->assertEquals('"ab"@c', $header->getId());
        $this->assertEquals('<"ab"@c>', $header->getFieldBody());
    }

    public function testIdLeftCanContainAnglesAsQuotedPairs()
    {
        /* -- RFC 2822, 3.6.4.
         no-fold-quote   =       DQUOTE *(qtext / quoted-pair) DQUOTE
         */

        $header = $this->_getHeader('References');
        $header->setId('"a\\<\\>b"@c');
        $this->assertEquals('"a\\<\\>b"@c', $header->getId());
        $this->assertEquals('<"a\\<\\>b"@c>', $header->getFieldBody());
    }

    public function testIdLeftCanBeDotAtom()
    {
        $header = $this->_getHeader('References');
        $header->setId('a.b+&%$.c@d');
        $this->assertEquals('a.b+&%$.c@d', $header->getId());
        $this->assertEquals('<a.b+&%$.c@d>', $header->getFieldBody());
    }

    public function testInvalidIdLeftThrowsException()
    {
        try {
            $header = $this->_getHeader('References');
            $header->setId('a b c@d');
            $this->fail(
                'Exception should be thrown since "a b c" is not valid id-left.'
                );
        } catch (Exception $e) {
        }
    }

    public function testIdRightCanBeDotAtom()
    {
        /* -- RFC 2822, 3.6.4.
         id-right        =       dot-atom-text / no-fold-literal / obs-id-right
         */

        $header = $this->_getHeader('References');
        $header->setId('a@b.c+&%$.d');
        $this->assertEquals('a@b.c+&%$.d', $header->getId());
        $this->assertEquals('<a@b.c+&%$.d>', $header->getFieldBody());
    }

    public function testIdRightCanBeLiteral()
    {
        /* -- RFC 2822, 3.6.4.
         no-fold-literal =       "[" *(dtext / quoted-pair) "]"
         */

        $header = $this->_getHeader('References');
        $header->setId('a@[1.2.3.4]');
        $this->assertEquals('a@[1.2.3.4]', $header->getId());
        $this->assertEquals('<a@[1.2.3.4]>', $header->getFieldBody());
    }

    public function testInvalidIdRightThrowsException()
    {
        try {
            $header = $this->_getHeader('References');
            $header->setId('a@b c d');
            $this->fail(
                'Exception should be thrown since "b c d" is not valid id-right.'
                );
        } catch (Exception $e) {
        }
    }

    public function testMissingAtSignThrowsException()
    {
        /* -- RFC 2822, 3.6.4.
         msg-id          =       [CFWS] "<" id-left "@" id-right ">" [CFWS]
         */

        try {
            $header = $this->_getHeader('References');
            $header->setId('abc');
            $this->fail(
                'Exception should be thrown since "abc" is does not contain @.'
                );
        } catch (Exception $e) {
        }
    }

    public function testSetBodyModel()
    {
        $header = $this->_getHeader('Message-ID');
        $header->setFieldBodyModel('a@b');
        $this->assertEquals(array('a@b'), $header->getIds());
    }

    public function testGetBodyModel()
    {
        $header = $this->_getHeader('Message-ID');
        $header->setId('a@b');
        $this->assertEquals(array('a@b'), $header->getFieldBodyModel());
    }

    public function testStringValue()
    {
        $header = $this->_getHeader('References');
        $header->setIds(array('a@b', 'x@y'));
        $this->assertEquals('References: <a@b> <x@y>'."\r\n", $header->toString());
    }

    private function _getHeader($name)
    {
        return new Swift_Mime_Headers_IdentificationHeader($name, new Swift_Mime_Grammar());
    }
}
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