add test for invalid connection option

test/pdo_sqlsrv/pdo_invalide_conn_opt.phpt

@@ -0,0 +1,37 @@
+--TEST--
+Test PDO::__Construct by passing connection options
+--SKIPIF--
+
+--FILE--
+<?php
+  
+require_once("autonomous_setup.php");
+
+try 
+{   
+    $database = "tempdb";
+	$dsn = 	"sqlsrv:Server = $serverName;" .
+			"Database = $database;" .
+			"InvalidKey = true;"
+			;
+    $conn = new PDO( $dsn, $username, $password); 
+
+  
+  echo "Test Successful";
+}
+catch( PDOException $e ) {
+    var_dump( $e->errorInfo );
+    exit;
+}
+?> 
+
+--EXPECT--
+
+array(3) {
+  [0]=>
+  string(5) "IMSSP"
+  [1]=>
+  int(-42)
+  [2]=>
+  string(64) "An invalid keyword 'InvalidKey' was specified in the DSN string."
+}