diff --git a/src/test/util_tests.cpp b/src/test/util_tests.cpp
--- a/src/test/util_tests.cpp
+++ b/src/test/util_tests.cpp
@@ -47,24 +47,28 @@
 BOOST_FIXTURE_TEST_SUITE(util_tests, BasicTestingSetup)
 
 BOOST_AUTO_TEST_CASE(util_datadir) {
-    ClearDatadirCache();
-    const fs::path dd_norm = GetDataDir();
+    // Use local args variable instead of m_args to avoid making assumptions
+    // about test setup
+    ArgsManager args;
+    args.ForceSetArg("-datadir", m_path_root.string());
+
+    const fs::path dd_norm = args.GetDataDirPath();
 
-    gArgs.ForceSetArg("-datadir", dd_norm.string() + "/");
+    args.ForceSetArg("-datadir", dd_norm.string() + "/");
     ClearDatadirCache();
-    BOOST_CHECK_EQUAL(dd_norm, GetDataDir());
+    BOOST_CHECK_EQUAL(dd_norm, args.GetDataDirPath());
 
-    gArgs.ForceSetArg("-datadir", dd_norm.string() + "/.");
+    args.ForceSetArg("-datadir", dd_norm.string() + "/.");
     ClearDatadirCache();
-    BOOST_CHECK_EQUAL(dd_norm, GetDataDir());
+    BOOST_CHECK_EQUAL(dd_norm, args.GetDataDirPath());
 
-    gArgs.ForceSetArg("-datadir", dd_norm.string() + "/./");
+    args.ForceSetArg("-datadir", dd_norm.string() + "/./");
     ClearDatadirCache();
-    BOOST_CHECK_EQUAL(dd_norm, GetDataDir());
+    BOOST_CHECK_EQUAL(dd_norm, args.GetDataDirPath());
 
-    gArgs.ForceSetArg("-datadir", dd_norm.string() + "/.//");
+    args.ForceSetArg("-datadir", dd_norm.string() + "/.//");
     ClearDatadirCache();
-    BOOST_CHECK_EQUAL(dd_norm, GetDataDir());
+    BOOST_CHECK_EQUAL(dd_norm, args.GetDataDirPath());
 }
 
 BOOST_AUTO_TEST_CASE(util_check) {