Fix segfaults in test 37

.github/workflows/cmake.yml

@@ -191,4 +191,6 @@ jobs:
       shell: bash
       # Execute tests defined by the CMake configuration.  
       # See https://cmake.org/cmake/help/latest/manual/ctest.1.html for more detail
-      run: ctest --output-on-failure -C $BUILD_TYPE
+      run: |
+        ctest --output-on-failure -C $BUILD_TYPE && \
+        ctest -V -R '^async auto reset event tests-multi-threaded$'

test/CMakeLists.txt

@@ -47,7 +47,7 @@ if(WIN32)
     )
 else()
 	# let more time for some tests
-	set(async_auto_reset_event_tests_TIMEOUT 60)
+	set(async_auto_reset_event_tests_TIMEOUT 200)
 endif()
 
 foreach(test ${tests})

test/async_auto_reset_event_tests.cpp

@@ -102,6 +102,18 @@ TEST_CASE("multi-threaded")
 			co_await tp.schedule();
 			co_await event;
 			++value;
+
+			thread_local volatile bool nested = false;
+
+			if (nested)
+			{
+				co_await tp.schedule();
+				assert(!nested);
+			}
+
+			nested = true;
+			cppcoro::scoped_lambda cleanup = [] { nested = false; };
+
 			event.set();
 		};