add test

Signed-off-by: Matthew Peveler <matt.peveler@gmail.com>

Author: MasterOdin

tests/Phinx/Db/Adapter/SqlServerAdapterTest.php

@@ -681,6 +681,22 @@ public function testChangeColumnDefaultToZero()
         $this->assertSame(0, $columns['column1']->getDefault());
     }
 
+    public function testChangeColumnDefaultStringBoolean(): void
+    {
+        $table = new Table('t', [], $this->adapter);
+        $table->addColumn('column1', 'boolean', ['default' => 'true'])
+            ->save();
+        $columns = $this->adapter->getColumns('t');
+        $this->assertSame(1, $columns['column1']->getDefault());
+        $newColumn1 = new Column();
+        $newColumn1
+            ->setType('boolean')
+            ->setDefault('false');
+        $table->changeColumn('column1', $newColumn1)->save();
+        $columns = $this->adapter->getColumns('t');
+        $this->assertSame(0, $columns['column1']->getDefault());
+    }
+
     public function testDropColumn()
     {
         $table = new Table('t', [], $this->adapter);