Don't recreate collections and indexes on each test for performance

Author: GromNaN

tests/GridFS/BucketFunctionalTest.php

@@ -688,6 +688,10 @@ public function testUploadingFirstFileCreatesIndexes(): void
 
     public function testExistingIndexIsReused(): void
     {
+        // The collections may exist from other tests, ensure they are removed before and after the test
+        $this->dropCollection($this->getDatabaseName(), 'fs.chunks');
+        $this->dropCollection($this->getDatabaseName(), 'fs.files');
+
         $this->filesCollection->createIndex(['filename' => 1.0, 'uploadDate' => 1], ['name' => 'test']);
         $this->chunksCollection->createIndex(['files_id' => 1.0, 'n' => 1], ['name' => 'test', 'unique' => true]);
 

tests/GridFS/FunctionalTestCase.php

@@ -3,6 +3,7 @@
 namespace MongoDB\Tests\GridFS;
 
 use MongoDB\Collection;
+use MongoDB\Driver\Command;
 use MongoDB\GridFS\Bucket;
 use MongoDB\Tests\FunctionalTestCase as BaseFunctionalTestCase;
 
@@ -28,10 +29,28 @@ public function setUp(): void
         parent::setUp();
 
         $this->bucket = new Bucket($this->manager, $this->getDatabaseName());
-        $this->bucket->drop();
 
-        $this->chunksCollection = $this->createCollection($this->getDatabaseName(), 'fs.chunks');
-        $this->filesCollection = $this->createCollection($this->getDatabaseName(), 'fs.files');
+        $this->chunksCollection = new Collection($this->manager, $this->getDatabaseName(), 'fs.chunks');
+        $this->filesCollection = new Collection($this->manager, $this->getDatabaseName(), 'fs.files');
+        $this->chunksCollection->deleteMany([]);
+        $this->filesCollection->deleteMany([]);
+    }
+
+    public function tearDown(): void
+    {
+        $this->chunksCollection->deleteMany([]);
+        $this->filesCollection->deleteMany([]);
+
+        parent::tearDown();
+    }
+
+    public static function tearDownAfterClass(): void
+    {
+        $manager = static::createTestManager();
+        $manager->executeCommand(self::getDatabaseName(), new Command(['drop' => 'fs.chunks']));
+        $manager->executeCommand(self::getDatabaseName(), new Command(['drop' => 'fs.files']));
+
+        parent::tearDownAfterClass();
     }
 
     /**