1 files changed, 75 insertions, 0 deletions
diff --git a/test/redfish-core/lib/manager_diagnostic_data_test.cpp b/test/redfish-core/lib/manager_diagnostic_data_test.cpp
new file mode 100644
index 0000000000..b59842ab57
--- /dev/null
+++ b/test/redfish-core/lib/manager_diagnostic_data_test.cpp
@@ -0,0 +1,75 @@
+#include "async_resp.hpp"
+#include "manager_diagnostic_data.hpp"
+
+#include <nlohmann/json.hpp>
+
+#include <memory>
+
+#include <gtest/gtest.h>
+
+namespace redfish
+{
+namespace
+{
+
+using json_pointer = nlohmann::json::json_pointer;
+
+void testDataGetNoError(boost::system::error_code ec)
+{
+    auto asyncResp = std::make_shared<bmcweb::AsyncResp>();
+
+    setBytesProperty(asyncResp,
+                     json_pointer("/MemoryStatistics/FreeStorageSpace"), ec, 0);
+    EXPECT_TRUE(asyncResp->res.jsonValue.is_null());
+    EXPECT_EQ(asyncResp->res.result(), boost::beast::http::status::ok);
+}
+
+TEST(ManagerDiagnosticDataTest, ManagerDataGetServerUnreachable)
+{
+    testDataGetNoError(boost::asio::error::basic_errors::host_unreachable);
+}
+
+TEST(ManagerDiagnosticDataTest, ManagerDataGetPathInvalid)
+{
+    testDataGetNoError(boost::system::linux_error::bad_request_descriptor);
+}
+
+void verifyError(crow::Response& res)
+{
+    EXPECT_EQ(res.result(), boost::beast::http::status::internal_server_error);
+    res.clear();
+}
+
+TEST(ManagerDiagnosticDataTest, ManagerDataGetFailure)
+{
+    auto asyncResp = std::make_shared<bmcweb::AsyncResp>();
+    boost::system::error_code ec = boost::asio::error::operation_aborted;
+
+    setBytesProperty(asyncResp,
+                     json_pointer("/MemoryStatistics/FreeStorageSpace"), ec, 0);
+    verifyError(asyncResp->res);
+}
+
+TEST(ManagerDiagnosticDataTest, ManagerDataGetNullPtr)
+{
+    auto asyncResp = std::make_shared<bmcweb::AsyncResp>();
+
+    setPercentProperty(
+        asyncResp,
+        nlohmann::json::json_pointer("/MemoryStatistics/FreeStorageSpace"), {},
+        std::numeric_limits<double>::quiet_NaN());
+    EXPECT_EQ(asyncResp->res.jsonValue["FreeStorageSpaceKiB"], nullptr);
+}
+
+TEST(ManagerDiagnosticDataTest, ManagerDataGetSuccess)
+{
+    auto asyncResp = std::make_shared<bmcweb::AsyncResp>();
+
+    setBytesProperty(asyncResp, json_pointer("/FreeStorageSpaceKiB"), {},
+                     204800.0);
+    EXPECT_EQ(asyncResp->res.jsonValue["FreeStorageSpaceKiB"].get<int64_t>(),
+              200);
+}
+
+} // namespace
+} // namespace redfish