Added test to check that street array will be converted to the string

Author: vovayatsyuk

app/code/Magento/Customer/Test/Unit/Model/Address/AbstractAddressTest.php

@@ -366,6 +366,15 @@ public function testGetStreetFullAlwaysReturnsString($expectedResult, $street)
         $this->assertEquals($expectedResult, $this->model->getStreetFull());
     }
 
+    /**
+     * @dataProvider getStreetFullDataProvider
+     */
+    public function testSetDataStreetAlwaysConvertedToString($expectedResult, $street)
+    {
+        $this->model->setData('street', $street);
+        $this->assertEquals($expectedResult, $this->model->getData('street'));
+    }
+
     /**
      * @return array
      */