1 files changed, 12 insertions, 0 deletions
diff --git a/clang/unittests/Format/FormatTestJS.cpp b/clang/unittests/Format/FormatTestJS.cpp
index 12ff750a8f6..033c024e5a0 100644
--- a/clang/unittests/Format/FormatTestJS.cpp
+++ b/clang/unittests/Format/FormatTestJS.cpp
@@ -1363,6 +1363,18 @@ TEST_F(FormatTestJS, UnionIntersectionTypes) {
                "};");
 }
 
+TEST_F(FormatTestJS, UnionIntersectionTypesInObjectType) {
+  verifyFormat("let x: {x: number|null} = {x: number | null};");
+  verifyFormat("let nested: {x: {y: number|null}};");
+  verifyFormat("let mixed: {x: [number|null, {w: number}]};");
+  verifyFormat("class X {\n"
+               "  contructor(x: {\n"
+               "    a: a|null,\n"
+               "    b: b|null,\n"
+               "  }) {}\n"
+               "}");
+}
+
 TEST_F(FormatTestJS, ClassDeclarations) {
   verifyFormat("class C {\n  x: string = 12;\n}");
   verifyFormat("class C {\n  x(): string => 12;\n}");