From 483eb2f56657e8e7f419ab1a4fab8dce9ade8609 Mon Sep 17 00:00:00 2001
From: Daniel Baumann <daniel.baumann@progress-linux.org>
Date: Sat, 27 Apr 2024 20:24:20 +0200
Subject: Adding upstream version 14.2.21.

Signed-off-by: Daniel Baumann <daniel.baumann@progress-linux.org>
---
 src/boost/libs/hana/test/optional/chain.cpp | 40 +++++++++++++++++++++++++++++
 1 file changed, 40 insertions(+)
 create mode 100644 src/boost/libs/hana/test/optional/chain.cpp

(limited to 'src/boost/libs/hana/test/optional/chain.cpp')

diff --git a/src/boost/libs/hana/test/optional/chain.cpp b/src/boost/libs/hana/test/optional/chain.cpp
new file mode 100644
index 00000000..be3f0ec6
--- /dev/null
+++ b/src/boost/libs/hana/test/optional/chain.cpp
@@ -0,0 +1,40 @@
+// Copyright Louis Dionne 2013-2017
+// Distributed under the Boost Software License, Version 1.0.
+// (See accompanying file LICENSE.md or copy at http://boost.org/LICENSE_1_0.txt)
+
+#include <boost/hana/assert.hpp>
+#include <boost/hana/chain.hpp>
+#include <boost/hana/equal.hpp>
+#include <boost/hana/optional.hpp>
+
+#include <laws/base.hpp>
+namespace hana = boost::hana;
+using hana::test::ct_eq;
+
+
+int main() {
+    auto f = [](auto x) {
+        return hana::just(hana::test::_injection<0>{}(x));
+    };
+
+    BOOST_HANA_CONSTANT_CHECK(hana::equal(
+        hana::chain(hana::just(ct_eq<3>{}), f),
+        f(ct_eq<3>{})
+    ));
+
+    BOOST_HANA_CONSTANT_CHECK(hana::equal(
+        hana::chain(hana::nothing, f),
+        hana::nothing
+    ));
+
+    // test with operators
+    BOOST_HANA_CONSTANT_CHECK(hana::equal(
+        hana::just(ct_eq<3>{}) | f,
+        f(ct_eq<3>{})
+    ));
+
+    BOOST_HANA_CONSTANT_CHECK(hana::equal(
+        hana::nothing | f,
+        hana::nothing
+    ));
+}
-- 
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