modified model classes with tests

tests/model/MySQLiStatementTest.php

@@ -175,6 +175,49 @@ class MySQLiStatementTest extends PHPUnit_Framework_TestCase
     /**
      * @runInSeparateProcess
      */
+    public function testFetchPairs()
+    {
+        if (!defined('DEBUG')) {
+            define('DEBUG', false);
+        }
+
+        $resultMock = $this->getMockBuilder('mysqli_result')
+                ->disableOriginalConstructor()
+                ->setMethods(array('fetch_array', 'close'))
+                ->setMockClassName('Mysqli_Result_Mock')
+                ->getMock();
+        $resultMock
+                ->expects($this->at(0))
+                ->method('fetch_array')
+                ->will($this->returnValue(array('pair', 'value')));
+        $resultMock
+                ->expects($this->at(1))
+                ->method('fetch_array')
+                ->will($this->returnValue(false));
+        $resultMock
+                ->expects($this->any())
+                ->method('close')
+                ->will($this->returnValue(TRUE));
+
+        $mysqliMock = $this->getMock('MysqliDrvr', array('query'));
+        $mysqliMock
+                ->expects($this->any())
+                ->method('query')
+                ->with($this->anything())
+                ->will($this->returnValue($resultMock));
+
+        $this->driver
+                ->expects($this->any())
+                ->method('getConnection')
+                ->will($this->returnValue($mysqliMock));
+        
+        $this->stmt->execute(array('place' => 'place_val', 'new' => 'new_val'));
+        $this->assertEquals(array('pair' => 'value'), $this->stmt->fetchPairs());
+    }
+
+    /**
+     * @runInSeparateProcess
+     */
     public function testFetchWithDebug()
     {
         if (!defined('DEBUG')) {