Index: unittests/Format/FormatTest.cpp
===================================================================
--- unittests/Format/FormatTest.cpp
+++ unittests/Format/FormatTest.cpp
@@ -11724,7 +11724,8 @@
 }
 
 TEST(FormatStyle, GetStyleWithEmptyFileName) {
-  auto Style1 = getStyle("file", "", "Google");
+  vfs::InMemoryFileSystem FS;
+  auto Style1 = getStyle("file", "", "Google", "", &FS);
   ASSERT_TRUE((bool)Style1);
   ASSERT_EQ(*Style1, getGoogleStyle());
 }