1 files changed, 31 insertions, 0 deletions
diff --git a/mfbt/tests/TestArray.cpp b/mfbt/tests/TestArray.cpp
new file mode 100644
index 0000000000..ff41001e0a
--- /dev/null
+++ b/mfbt/tests/TestArray.cpp
@@ -0,0 +1,31 @@
+/* -*- Mode: C++; tab-width: 8; indent-tabs-mode: nil; c-basic-offset: 2 -*- */
+/* vim: set ts=8 sts=2 et sw=2 tw=80: */
+/* This Source Code Form is subject to the terms of the Mozilla Public
+ * License, v. 2.0. If a copy of the MPL was not distributed with this file,
+ * You can obtain one at http://mozilla.org/MPL/2.0/. */
+
+#include "mozilla/Array.h"
+
+void TestInitialValueByConstructor() {
+  using namespace mozilla;
+  // Style 1
+  Array<int32_t, 3> arr1(1, 2, 3);
+  MOZ_RELEASE_ASSERT(arr1[0] == 1);
+  MOZ_RELEASE_ASSERT(arr1[1] == 2);
+  MOZ_RELEASE_ASSERT(arr1[2] == 3);
+  // Style 2
+  Array<int32_t, 3> arr2{5, 6, 7};
+  MOZ_RELEASE_ASSERT(arr2[0] == 5);
+  MOZ_RELEASE_ASSERT(arr2[1] == 6);
+  MOZ_RELEASE_ASSERT(arr2[2] == 7);
+  // Style 3
+  Array<int32_t, 3> arr3({8, 9, 10});
+  MOZ_RELEASE_ASSERT(arr3[0] == 8);
+  MOZ_RELEASE_ASSERT(arr3[1] == 9);
+  MOZ_RELEASE_ASSERT(arr3[2] == 10);
+}
+
+int main() {
+  TestInitialValueByConstructor();
+  return 0;
+}