diff --git a/tests/cases/fourslash/server/format.ts b/tests/cases/fourslash/server/format.ts
new file mode 100644
index 00000000000..75d06eef0c2
--- /dev/null
+++ b/tests/cases/fourslash/server/format.ts
@@ -0,0 +1,8 @@
+/// <reference path='fourslash.ts' />
+
+/////**/module Default{var x= ( { } ) ;}
+
+
+format.document();
+goTo.marker();
+verify.currentLineContentIs('module Default { var x = ({}); }');
\ No newline at end of file