From 20b21d325991fa954378e651df2bea8bd497a722 Mon Sep 17 00:00:00 2001
From: Anders Hejlsberg <andersh@microsoft.com>
Date: Fri, 17 Nov 2017 13:21:49 -0800
Subject: [PATCH] Add test

---
 .../strictPropertyInitialization.ts                      | 9 +++++++++
 1 file changed, 9 insertions(+)

diff --git a/tests/cases/conformance/classes/propertyMemberDeclarations/strictPropertyInitialization.ts b/tests/cases/conformance/classes/propertyMemberDeclarations/strictPropertyInitialization.ts
index 326e4542d29..9c8d56e1f5a 100644
--- a/tests/cases/conformance/classes/propertyMemberDeclarations/strictPropertyInitialization.ts
+++ b/tests/cases/conformance/classes/propertyMemberDeclarations/strictPropertyInitialization.ts
@@ -75,3 +75,12 @@ class C8 {
     "b": number;
     0: number;
 }
+
+// No strict initialization checks for abstract members
+
+abstract class C9 {
+    abstract a: number;
+    abstract b: number | undefined;
+    abstract c: number | null;
+    abstract d?: number;
+}