text: <?php
  /*
   * Copyright 2018 Google Inc.
   *
   * Licensed under the Apache License, Version 2.0 (the "License");
   * you may not use this file except in compliance with the License.
   * You may obtain a copy of the License at
   *
   *     http://www.apache.org/licenses/LICENSE-2.0
   *
   * Unless required by applicable law or agreed to in writing, software
   * distributed under the License is distributed on an "AS IS" BASIS,
   * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
   * See the License for the specific language governing permissions and
   * limitations under the License.
   */
  
  namespace Google\Auth\Tests;
  
  use Google\Auth\Cache\SysVCacheItemPool;
  use PHPUnit\Framework\TestCase;
  
  class SysVCacheItemPoolTest extends TestCase
  {
      private $pool;
  
      public function setUp()
      {
          if (! extension_loaded('sysvshm')) {
              $this->markTestSkipped(
                  'sysvshm extension is required for running the test'
              );
          }
          $this->pool = new SysVCacheItemPool(['variableKey' => 99]);
          $this->pool->clear();
      }
  
      public function saveItem($key, $value)
      {
          $item = $this->pool->getItem($key);
          $item->set($value);
          $this->assertTrue($this->pool->save($item));
  
          return $item;
      }
  
      public function testGetsFreshItem()
      {
          $item = $this->pool->getItem('item');
  
          $this->assertInstanceOf('Google\Auth\Cache\Item', $item);
          $this->assertNull($item->get());
          $this->assertFalse($item->isHit());
      }
  
      public function testCacheAmongProcesses()
      {
          $expectedValue = 'val-' . rand();
          exec(sprintf('php %s/sysv_cache_creator.php %s', __DIR__, $expectedValue));
          $this->assertEquals(
              $expectedValue,
              $this->pool->getItem('separate-process-item')->get()
          );
      }
  
      public function testGetsExistingItem()
      {
          $key = 'item';
          $value = 'value';
          $this->saveItem($key, $value);
          $item = $this->pool->getItem($key);
  
          $this->assertInstanceOf('Google\Auth\Cache\Item', $item);
          $this->assertEquals($value, $item->get());
          $this->assertTrue($item->isHit());
      }
  
      public function testGetsMultipleItems()
      {
          $keys = ['item1', 'item2'];
          $items = $this->pool->getItems($keys);
  
          $this->assertEquals($keys, array_keys($items));
          $this->assertContainsOnlyInstancesOf('Google\Auth\Cache\Item', $items);
      }
  
      public function testHasItem()
      {
          $existsKey = 'does-exist';
          $this->saveItem($existsKey, 'value');
  
          $this->assertTrue($this->pool->hasItem($existsKey));
          $this->assertFalse($this->pool->hasItem('does-not-exist'));
      }
  
      public function testClear()
      {
          $key = 'item';
          $this->saveItem($key, 'value');
  
          $this->assertTrue($this->pool->hasItem($key));
          $this->assertTrue($this->pool->clear());
          $this->assertFalse($this->pool->hasItem($key));
      }
  
      public function testDeletesItem()
      {
          $key = 'item';
          $this->saveItem($key, 'value');
  
          $this->assertTrue($this->pool->deleteItem($key));
          $this->assertFalse($this->pool->hasItem($key));
      }
  
      public function testDeletesItems()
      {
          $keys = ['item1', 'item2'];
  
          foreach ($keys as $key) {
              $this->saveItem($key, 'value');
          }
  
          $this->assertTrue($this->pool->deleteItems($keys));
          $this->assertFalse($this->pool->hasItem($keys[0]));
          $this->assertFalse($this->pool->hasItem($keys[1]));
      }
  
      public function testSavesItem()
      {
          $key = 'item';
          $this->saveItem($key, 'value');
  
          $this->assertTrue($this->pool->hasItem($key));
      }
  
      public function testSavesDeferredItem()
      {
          $item = $this->pool->getItem('item');
          $this->assertTrue($this->pool->saveDeferred($item));
      }
  
      public function testCommitsDeferredItems()
      {
          $keys = ['item1', 'item2'];
  
          foreach ($keys as $key) {
              $item = $this->pool->getItem($key);
              $item->set('value');
              $this->pool->saveDeferred($item);
          }
  
          $this->assertTrue($this->pool->commit());
          $this->assertTrue($this->pool->hasItem($keys[0]));
          $this->assertTrue($this->pool->hasItem($keys[1]));
          $this->assertEquals(
              $item->get(),
              $this->pool->getItem($keys[1])->get()
          );
      }
  }
  