diff --git a/src/Makefile.test.include b/src/Makefile.test.include
--- a/src/Makefile.test.include
+++ b/src/Makefile.test.include
@@ -111,7 +111,8 @@
   test/univalue_tests.cpp \
   test/util_tests.cpp \
   test/validation_tests.cpp \
-  test/work_comparator_tests.cpp
+  test/work_comparator_tests.cpp \
+  rpc/test/server_tests.cpp
 
 if ENABLE_WALLET
 BITCOIN_TESTS += \
diff --git a/src/rpc/mining.cpp b/src/rpc/mining.cpp
--- a/src/rpc/mining.cpp
+++ b/src/rpc/mining.cpp
@@ -798,7 +798,7 @@
             HelpExampleCli("estimatefee", "6"));
     }
 
-    if (!IsDeprecatedRPCEnabled("estimatefee")) {
+    if (!IsDeprecatedRPCEnabled(gArgs, "estimatefee")) {
         throw JSONRPCError(
             RPC_METHOD_DEPRECATED,
             "estimatefee is deprecated and will be fully removed in v0.17. "
diff --git a/src/rpc/server.h b/src/rpc/server.h
--- a/src/rpc/server.h
+++ b/src/rpc/server.h
@@ -11,6 +11,7 @@
 #include "rpc/jsonrpcrequest.h"
 #include "rpc/protocol.h"
 #include "uint256.h"
+#include "util.h"
 
 #include <cstdint>
 #include <functional>
@@ -243,7 +244,7 @@
                        const ContextFreeRPCCommand *pcmd);
 };
 
-bool IsDeprecatedRPCEnabled(const std::string &method);
+bool IsDeprecatedRPCEnabled(ArgsManager &args, const std::string &method);
 
 extern CRPCTable tableRPC;
 
diff --git a/src/rpc/server.cpp b/src/rpc/server.cpp
--- a/src/rpc/server.cpp
+++ b/src/rpc/server.cpp
@@ -407,9 +407,9 @@
     return fRPCInWarmup;
 }
 
-bool IsDeprecatedRPCEnabled(const std::string &method) {
+bool IsDeprecatedRPCEnabled(ArgsManager &args, const std::string &method) {
     const std::vector<std::string> enabled_methods =
-        gArgs.GetArgs("-deprecatedrpc");
+        args.GetArgs("-deprecatedrpc");
 
     return find(enabled_methods.begin(), enabled_methods.end(), method) !=
            enabled_methods.end();
diff --git a/src/rpc/test/server_tests.cpp b/src/rpc/test/server_tests.cpp
new file mode 100644
--- /dev/null
+++ b/src/rpc/test/server_tests.cpp
@@ -0,0 +1,23 @@
+#include "rpc/server.h"
+#include "test/test_bitcoin.h"
+#include "util.h"
+
+#include <cstdint>
+#include <vector>
+
+#include <boost/test/unit_test.hpp>
+
+BOOST_FIXTURE_TEST_SUITE(server_tests, BasicTestingSetup)
+
+BOOST_AUTO_TEST_CASE(server_IsDeprecatedRPCEnabled) {
+    ArgsManager testArgs;
+    const char *argv_test[] = {"bitcoind", "-deprecatedrpc=foo",
+                               "-deprecatedrpc=bar"};
+
+    testArgs.ParseParameters(3, (char **)argv_test);
+    BOOST_CHECK(IsDeprecatedRPCEnabled(testArgs, "foo") == true);
+    BOOST_CHECK(IsDeprecatedRPCEnabled(testArgs, "bar") == true);
+    BOOST_CHECK(IsDeprecatedRPCEnabled(testArgs, "bob") == false);
+}
+
+BOOST_AUTO_TEST_SUITE_END()
diff --git a/src/test/CMakeLists.txt b/src/test/CMakeLists.txt
--- a/src/test/CMakeLists.txt
+++ b/src/test/CMakeLists.txt
@@ -126,6 +126,9 @@
 	validation_tests.cpp
 	work_comparator_tests.cpp
 
+	# RPC Tests
+	../rpc/test/server_tests.cpp
+
 	# Tests generated from JSON
 	${JSON_HEADERS}
 )