From 28b241e6156ea11ed20ed3dda4eda354b04272d5 Mon Sep 17 00:00:00 2001
From: Anders Hejlsberg <andersh@microsoft.com>
Date: Wed, 15 Jun 2016 09:28:45 -0700
Subject: [PATCH] Add regression test

---
 tests/cases/compiler/strictNullLogicalAndOr.ts | 15 +++++++++++++++
 1 file changed, 15 insertions(+)
 create mode 100644 tests/cases/compiler/strictNullLogicalAndOr.ts

diff --git a/tests/cases/compiler/strictNullLogicalAndOr.ts b/tests/cases/compiler/strictNullLogicalAndOr.ts
new file mode 100644
index 00000000000..68055f8b20b
--- /dev/null
+++ b/tests/cases/compiler/strictNullLogicalAndOr.ts
@@ -0,0 +1,15 @@
+// @strictNullChecks: true
+
+// Repro from #9113
+
+let sinOrCos = Math.random() < .5;
+let choice = sinOrCos && Math.sin || Math.cos;
+
+choice(Math.PI);
+
+function sq(n?: number): number {
+  const r = n !== undefined && n*n || 0;
+  return r;
+}
+
+sq(3);
\ No newline at end of file