From 59d6e2a19e3e92229d3eb8a33d379894c480bb95 Mon Sep 17 00:00:00 2001
From: Victor Boivie <boivie@webrtc.org>
Date: Tue, 20 Apr 2021 14:25:06 +0200
Subject: [PATCH] dcsctp: Add test for StrongAlias<bool> as bool

This test verifies that a StrongAlias<bool> can be evaluated as
a boolean without dereferencing it. Note that this is not the case
for StrongAlias<int>, for example, as that wouldn't even compile. Which
is quite good.

Bug: webrtc:12614
Change-Id: I67329364721fe0354d78daac1233254035454c03
Reviewed-on: https://webrtc-review.googlesource.com/c/src/+/215686
Reviewed-by: Florent Castelli <orphis@webrtc.org>
Commit-Queue: Victor Boivie <boivie@webrtc.org>
Cr-Commit-Position: refs/heads/master@{#33787}
---
 net/dcsctp/public/strong_alias_test.cc | 12 ++++++++++++
 1 file changed, 12 insertions(+)

diff --git a/net/dcsctp/public/strong_alias_test.cc b/net/dcsctp/public/strong_alias_test.cc
index b0f97a73c2..0c57c6b248 100644
--- a/net/dcsctp/public/strong_alias_test.cc
+++ b/net/dcsctp/public/strong_alias_test.cc
@@ -347,4 +347,16 @@ TEST(StrongAliasTest, EnsureConstexpr) {
   static_assert(kOne > kZero, "");
   static_assert(kOne >= kZero, "");
 }
+
+TEST(StrongAliasTest, BooleansAreEvaluatedAsBooleans) {
+  using BoolAlias = StrongAlias<class BoolTag, bool>;
+
+  BoolAlias happy(true);
+  BoolAlias sad(false);
+
+  EXPECT_TRUE(happy);
+  EXPECT_FALSE(sad);
+  EXPECT_TRUE(*happy);
+  EXPECT_FALSE(*sad);
+}
 }  // namespace dcsctp