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-rw-r--r--mfbt/tests/TestScopeExit.cpp54
1 files changed, 54 insertions, 0 deletions
diff --git a/mfbt/tests/TestScopeExit.cpp b/mfbt/tests/TestScopeExit.cpp
new file mode 100644
index 000000000..fadd3a10a
--- /dev/null
+++ b/mfbt/tests/TestScopeExit.cpp
@@ -0,0 +1,54 @@
+/* -*- 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/Assertions.h"
+#include "mozilla/ScopeExit.h"
+
+using mozilla::MakeScopeExit;
+
+#define CHECK(c) \
+ do { \
+ bool cond = !!(c); \
+ MOZ_RELEASE_ASSERT(cond, "Failed assertion: " #c); \
+ if (!cond) { \
+ return false; \
+ } \
+ } while (false)
+
+static bool
+Test()
+{
+ int a = 1;
+ int b = 1;
+
+ {
+ a++;
+ auto guardA = MakeScopeExit([&] {
+ a--;
+ });
+
+ b++;
+ auto guardB = MakeScopeExit([&] {
+ b--;
+ });
+
+ guardB.release();
+ }
+
+ CHECK(a == 1);
+ CHECK(b == 2);
+
+ return true;
+}
+
+int
+main()
+{
+ if (!Test()) {
+ return 1;
+ }
+ return 0;
+}