From 41b88e93375d57db12da923f45f87b9a2db8e730 Mon Sep 17 00:00:00 2001
From: Russell Yanofsky <russ@yanofsky.org>
Date: Wed, 8 Nov 2017 15:28:35 -0500
Subject: Add unit test for DEBUG_LOCKORDER code

---
 src/test/sync_tests.cpp | 41 +++++++++++++++++++++++++++++++++++++++++
 1 file changed, 41 insertions(+)
 create mode 100644 src/test/sync_tests.cpp

(limited to 'src/test/sync_tests.cpp')

diff --git a/src/test/sync_tests.cpp b/src/test/sync_tests.cpp
new file mode 100644
index 000000000..2e0951c3a
--- /dev/null
+++ b/src/test/sync_tests.cpp
@@ -0,0 +1,41 @@
+// Copyright (c) 2012-2017 The Bitcoin Core developers
+// Distributed under the MIT software license, see the accompanying
+// file COPYING or http://www.opensource.org/licenses/mit-license.php.
+
+#include <sync.h>
+#include <test/test_bitcoin.h>
+
+#include <boost/test/unit_test.hpp>
+
+BOOST_FIXTURE_TEST_SUITE(sync_tests, BasicTestingSetup)
+
+BOOST_AUTO_TEST_CASE(potential_deadlock_detected)
+{
+    #ifdef DEBUG_LOCKORDER
+    bool prev = g_debug_lockorder_abort;
+    g_debug_lockorder_abort = false;
+    #endif
+
+    CCriticalSection mutex1, mutex2;
+    {
+        LOCK2(mutex1, mutex2);
+    }
+    bool error_thrown = false;
+    try {
+        LOCK2(mutex2, mutex1);
+    } catch (const std::logic_error& e) {
+        BOOST_CHECK_EQUAL(e.what(), "potential deadlock detected");
+        error_thrown = true;
+    }
+    #ifdef DEBUG_LOCKORDER
+    BOOST_CHECK(error_thrown);
+    #else
+    BOOST_CHECK(!error_thrown);
+    #endif
+
+    #ifdef DEBUG_LOCKORDER
+    g_debug_lockorder_abort = prev;
+    #endif
+}
+
+BOOST_AUTO_TEST_SUITE_END()
-- 
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