Simplify arguments for assertCollectionDoesNotExist()

tests/Operation/DropCollectionFunctionalTest.php

@@ -2,7 +2,6 @@
 
 namespace MongoDB\Tests\Operation;
 
-use MongoDB\Driver\Server;
 use MongoDB\Operation\DropCollection;
 use MongoDB\Operation\InsertOne;
 use MongoDB\Operation\ListCollections;
@@ -20,7 +19,7 @@ class DropCollectionFunctionalTest extends FunctionalTestCase
         $operation = new DropCollection($this->getDatabaseName(), $this->getCollectionName());
         $operation->execute($server);
 
-        $this->assertCollectionDoesNotExist($server, $this->getDatabaseName(), $this->getCollectionName());
+        $this->assertCollectionDoesNotExist($this->getCollectionName());
     }
 
     /**
@@ -28,26 +27,22 @@ class DropCollectionFunctionalTest extends FunctionalTestCase
      */
     public function testDropNonexistentCollection()
     {
-        $server = $this->getPrimaryServer();
-
-        $this->assertCollectionDoesNotExist($server, $this->getDatabaseName(), $this->getCollectionName());
+        $this->assertCollectionDoesNotExist($this->getCollectionName());
 
         $operation = new DropCollection($this->getDatabaseName(), $this->getCollectionName());
-        $operation->execute($server);
+        $operation->execute($this->getPrimaryServer());
     }
 
     /**
      * Asserts that a collection with the given name does not exist on the
      * server.
      *
-     * @param Server $server
-     * @param string $databaseName
      * @param string $collectionName
      */
-    private function assertCollectionDoesNotExist(Server $server, $databaseName, $collectionName)
+    private function assertCollectionDoesNotExist($collectionName)
     {
-        $operation = new ListCollections($databaseName);
-        $collections = $operation->execute($server);
+        $operation = new ListCollections($this->getDatabaseName());
+        $collections = $operation->execute($this->getPrimaryServer());
 
         $foundCollection = null;
 
@@ -58,6 +53,6 @@ class DropCollectionFunctionalTest extends FunctionalTestCase
             }
         }
 
-        $this->assertNull($foundCollection, sprintf('Collection %s exists on the server', $collectionName));
+        $this->assertNull($foundCollection, sprintf('Collection %s exists', $collectionName));
     }
 }