diff --git a/test/include/sessions_test.cpp b/test/include/sessions_test.cpp
new file mode 100644
index 0000000..2840ee9
--- /dev/null
+++ b/test/include/sessions_test.cpp
@@ -0,0 +1,45 @@
+#include "sessions.hpp"
+
+#include <nlohmann/json.hpp>
+
+#include <gtest/gtest.h>
+
+namespace
+{
+TEST(AuthConfigMethods, FromJsonHappyPath)
+{
+    persistent_data::AuthConfigMethods methods;
+
+    nlohmann::json jsonValue = nlohmann::json::parse(
+        R"({"BasicAuth":true,"Cookie":true,"SessionToken":true,"TLS":true,"MTLSCommonNameParseMode":2,"TLSStrict":false,"XToken":true})");
+    methods.fromJson(jsonValue);
+
+    EXPECT_EQ(methods.basic, true);
+    EXPECT_EQ(methods.cookie, true);
+    EXPECT_EQ(methods.sessionToken, true);
+    EXPECT_EQ(methods.tls, true);
+    EXPECT_EQ(methods.tlsStrict, false);
+    EXPECT_EQ(methods.xtoken, true);
+    EXPECT_EQ(methods.mTLSCommonNameParsingMode,
+              static_cast<persistent_data::MTLSCommonNameParseMode>(2));
+}
+
+TEST(AuthConfigMethods, FromJsonMTLSCommonNameParseModeOutOfRange)
+{
+    persistent_data::AuthConfigMethods methods;
+    persistent_data::MTLSCommonNameParseMode prevValue =
+        methods.mTLSCommonNameParsingMode;
+
+    nlohmann::json jsonValue = nlohmann::json::parse(
+        R"({"BasicAuth":true,"Cookie":true,"SessionToken":true,"TLS":true,"MTLSCommonNameParseMode":4,"TLSStrict":false,"XToken":true})");
+    methods.fromJson(jsonValue);
+
+    EXPECT_EQ(methods.basic, true);
+    EXPECT_EQ(methods.cookie, true);
+    EXPECT_EQ(methods.sessionToken, true);
+    EXPECT_EQ(methods.tls, true);
+    EXPECT_EQ(methods.tlsStrict, false);
+    EXPECT_EQ(methods.xtoken, true);
+    EXPECT_EQ(methods.mTLSCommonNameParsingMode, prevValue);
+}
+} // namespace