Separate unit tests and integration tests (#1393)

Fixes #1391

tests/unit/rpc/handlers/PingTests.cpp

@@ -0,0 +1,41 @@
+//------------------------------------------------------------------------------
+/*
+    This file is part of clio: https://github.com/XRPLF/clio
+    Copyright (c) 2023, the clio developers.
+
+    Permission to use, copy, modify, and distribute this software for any
+    purpose with or without fee is hereby granted, provided that the above
+    copyright notice and this permission notice appear in all copies.
+
+    THE  SOFTWARE IS PROVIDED "AS IS" AND THE AUTHOR DISCLAIMS ALL WARRANTIES
+    WITH  REGARD  TO  THIS  SOFTWARE  INCLUDING  ALL  IMPLIED  WARRANTIES  OF
+    MERCHANTABILITY  AND  FITNESS. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR
+    ANY  SPECIAL,  DIRECT,  INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES
+    WHATSOEVER  RESULTING  FROM  LOSS  OF USE, DATA OR PROFITS, WHETHER IN AN
+    ACTION  OF  CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF
+    OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE.
+*/
+//==============================================================================
+
+#include "rpc/common/AnyHandler.hpp"
+#include "rpc/common/Types.hpp"
+#include "rpc/handlers/Ping.hpp"
+#include "util/Fixtures.hpp"
+
+#include <boost/json/parse.hpp>
+#include <gtest/gtest.h>
+
+using namespace rpc;
+
+class RPCPingHandlerTest : public HandlerBaseTest {};
+
+// example handler tests
+TEST_F(RPCPingHandlerTest, Default)
+{
+    runSpawn([](auto yield) {
+        auto const handler = AnyHandler{PingHandler{}};
+        auto const output = handler.process(boost::json::parse(R"({})"), Context{yield});
+        ASSERT_TRUE(output);
+        EXPECT_EQ(output.result.value(), boost::json::parse(R"({})"));
+    });
+}