fixed test break

framework/db/ColumnSchema.php

@@ -93,6 +93,7 @@ class ColumnSchema extends Object
             return $value;
         }
         switch ($this->phpType) {
+            case 'resource':
             case 'string':
                 return is_resource($value) ? $value : (string) $value;
             case 'integer':

framework/db/sqlite/Schema.php

@@ -49,6 +49,7 @@ class Schema extends \yii\db\Schema
         'varchar' => self::TYPE_STRING,
         'string' => self::TYPE_STRING,
         'char' => self::TYPE_STRING,
+        'blob' => self::TYPE_BINARY,
         'datetime' => self::TYPE_DATETIME,
         'year' => self::TYPE_DATE,
         'date' => self::TYPE_DATE,

tests/unit/framework/db/SchemaTest.php

@@ -192,9 +192,9 @@ class SchemaTest extends DatabaseTestCase
                 'defaultValue' => 1.23,
             ],
             'blob_col' => [
-                'type' => 'string',
+                'type' => 'binary',
                 'dbType' => 'blob',
-                'phpType' => 'string',
+                'phpType' => 'resource',
                 'allowNull' => true,
                 'autoIncrement' => false,
                 'enumValues' => null,