<?php

require_once 'Swift/Tests/SwiftUnitTestCase.php';
require_once 'Swift/KeyCache/SimpleKeyCacheInputStream.php';
require_once 'Swift/KeyCache.php';

class Swift_KeyCache_SimpleKeyCacheInputStreamTest
    extends Swift_Tests_SwiftUnitTestCase
{
    private $_nsKey = 'ns1';

    public function testStreamWritesToCacheInAppendMode()
    {
        $cache = $this->_createKeyCache();
        $this->_checking(Expectations::create()
            -> one($cache)->setString($this->_nsKey, 'foo', 'a', Swift_KeyCache::MODE_APPEND)
            -> one($cache)->setString($this->_nsKey, 'foo', 'b', Swift_KeyCache::MODE_APPEND)
            -> one($cache)->setString($this->_nsKey, 'foo', 'c', Swift_KeyCache::MODE_APPEND)
            );

        $stream = new Swift_KeyCache_SimpleKeyCacheInputStream();
        $stream->setKeyCache($cache);
        $stream->setNsKey($this->_nsKey);
        $stream->setItemKey('foo');

        $stream->write('a');
        $stream->write('b');
        $stream->write('c');
    }

    public function testFlushContentClearsKey()
    {
        $cache = $this->_createKeyCache();
        $this->_checking(Expectations::create()
            -> one($cache)->clearKey($this->_nsKey, 'foo')
            );

        $stream = new Swift_KeyCache_SimpleKeyCacheInputStream();
        $stream->setKeyCache($cache);
        $stream->setNsKey($this->_nsKey);
        $stream->setItemKey('foo');

        $stream->flushBuffers();
    }

    public function testClonedStreamStillReferencesSameCache()
    {
        $cache = $this->_createKeyCache();
        $this->_checking(Expectations::create()
            -> one($cache)->setString($this->_nsKey, 'foo', 'a', Swift_KeyCache::MODE_APPEND)
            -> one($cache)->setString($this->_nsKey, 'foo', 'b', Swift_KeyCache::MODE_APPEND)
            -> one($cache)->setString('test', 'bar', 'x', Swift_KeyCache::MODE_APPEND)
            );

        $stream = new Swift_KeyCache_SimpleKeyCacheInputStream();
        $stream->setKeyCache($cache);
        $stream->setNsKey($this->_nsKey);
        $stream->setItemKey('foo');

        $stream->write('a');
        $stream->write('b');

        $newStream = clone $stream;
        $newStream->setKeyCache($cache);
        $newStream->setNsKey('test');
        $newStream->setItemKey('bar');

        $newStream->write('x');
    }

    // -- Creation Methods

    private function _createKeyCache()
    {
        return $this->_mock('Swift_KeyCache');
    }
}