<?php
// Hoplite
// Copyright (c) 2013 Blue Static
//
// This program is free software: you can redistribute it and/or modify it
// under the terms of the GNU General Public License as published by the Free
// Software Foundation, either version 3 of the License, or any later version.
//
// This program is distributed in the hope that it will be useful, but WITHOUT
// ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
// FITNESS FOR A PARTICULAR PURPOSE.  See the GNU General Public License for
// more details.
//
// You should have received a copy of the GNU General Public License along with
// this program.  If not, see <http://www.gnu.org/licenses/>.

namespace hoplite\test;
use hoplite\views as views;

require_once HOPLITE_ROOT . '/views/pdo_cache_backend.php';

class PDOCacheBackendTest extends \PHPUnit_Framework_TestCase
{
  private $db;
  private $cache;

  public function setUp()
  {
    $this->db = new \PDO('sqlite::memory:');
    $this->db->Exec("
        CREATE TABLE test_template_cache (
            filename string PRIMARY KEY,
            data string,
            mtime int
        );
    ");

    $this->cache = new views\PDOCacheBackend(
        $this->db, 'test_template_cache', 'filename', 'data', 'mtime');
  }

  private function _GetCount()
  {
    $stmt = $this->db->Query("SELECT COUNT(*) AS count FROM test_template_cache");
    return $stmt->FetchObject()->count;
  }

  public function testCacheMiss()
  {
    $this->assertNull($this->cache->GetTemplateDataForName('test', 100));
    $this->db->Exec("INSERT INTO test_template_cache (filename, data, mtime) VALUES ('test', 'hello world', 100)");
    $this->assertEquals('hello world', $this->cache->GetTemplateDataForName('test', 100));
    $this->assertEquals(1, $this->_GetCount());

    $this->assertNull($this->cache->GetTemplateDataForName('test', 200));
    $this->assertEquals(0, $this->_GetCount());
  }

  public function testCacheStore()
  {
    $this->cache->StoreCompiledTemplate('name', 400, 'abcdefgh');
    $this->assertEquals(1, $this->_GetCount());

    $this->assertEquals('abcdefgh', $this->cache->GetTemplateDataForName('name', 400));
    $this->assertEquals(1, $this->_GetCount());

    $this->assertNull($this->cache->GetTemplateDataForName('name', 500));
  }
}