Use UnsupportedException instead of CommandException

Author: alcaeus

src/Exception/UnsupportedException.php

@@ -39,6 +39,17 @@ public static function collationNotSupported()
         return new static('Collations are not supported by the server executing this operation');
     }
 
+    /**
+     * Thrown when the commitQuorum option for createIndexes is not supported
+     * by a server.
+     *
+     * @return self
+     */
+    public static function commitQuorumNotSupported()
+    {
+        return new static('The "commitQuorum" option is not supported by the server executing this operation');
+    }
+
     /**
      * Thrown when explain is not supported by a server.
      *

src/Operation/CreateIndexes.php

@@ -18,7 +18,6 @@
 namespace MongoDB\Operation;
 
 use MongoDB\Driver\Command;
-use MongoDB\Driver\Exception\CommandException;
 use MongoDB\Driver\Exception\RuntimeException as DriverRuntimeException;
 use MongoDB\Driver\Server;
 use MongoDB\Driver\Session;
@@ -219,7 +218,7 @@ private function executeCommand(Server $server)
             /* Drivers MUST manually raise an error if this option is specified
              * when creating an index on a pre 4.4 server. */
             if (! server_supports_feature($server, self::$wireVersionForCommitQuorum)) {
-                throw new CommandException('Invalid field specified for createIndexes command: commitQuorum', 2);
+                throw UnsupportedException::commitQuorumNotSupported();
             }
 
             $cmd['commitQuorum'] = $this->options['commitQuorum'];

tests/Operation/CreateIndexesFunctionalTest.php

@@ -3,9 +3,9 @@
 namespace MongoDB\Tests\Operation;
 
 use InvalidArgumentException;
-use MongoDB\Driver\Exception\CommandException;
 use MongoDB\Driver\Exception\RuntimeException;
 use MongoDB\Driver\Server;
+use MongoDB\Exception\UnsupportedException;
 use MongoDB\Model\IndexInfo;
 use MongoDB\Operation\CreateIndexes;
 use MongoDB\Operation\ListIndexes;
@@ -213,8 +213,8 @@ public function testCommitQuorumUnsupported()
             ['commitQuorum' => 'majority']
         );
 
-        $this->expectException(CommandException::class);
-        $this->expectExceptionMessage('Invalid field specified for createIndexes command: commitQuorum');
+        $this->expectException(UnsupportedException::class);
+        $this->expectExceptionMessage('The "commitQuorum" option is not supported by the server executing this operation');
 
         $operation->execute($this->getPrimaryServer());
     }