diff --git a/src/test/util/setup_common.h b/src/test/util/setup_common.h
--- a/src/test/util/setup_common.h
+++ b/src/test/util/setup_common.h
@@ -109,6 +109,7 @@
     ~BasicTestingSetup();
 
     const fs::path m_path_root;
+    ArgsManager m_args;
 };
 
 /**
diff --git a/src/test/util/setup_common.cpp b/src/test/util/setup_common.cpp
--- a/src/test/util/setup_common.cpp
+++ b/src/test/util/setup_common.cpp
@@ -90,7 +90,8 @@
 BasicTestingSetup::BasicTestingSetup(
     const std::string &chainName, const std::vector<const char *> &extra_args)
     : m_path_root{fs::temp_directory_path() / "test_common_" PACKAGE_NAME /
-                  g_insecure_rand_ctx_temp_path.rand256().ToString()} {
+                  g_insecure_rand_ctx_temp_path.rand256().ToString()},
+      m_args{} {
     // clang-format off
     std::vector<const char *> arguments = Cat(
         {
@@ -107,6 +108,7 @@
     auto &config = const_cast<Config &>(GetConfig());
     SetMockTime(0);
     fs::create_directories(m_path_root);
+    m_args.ForceSetArg("-datadir", m_path_root.string());
     gArgs.ForceSetArg("-datadir", m_path_root.string());
     ClearDatadirCache();
     {
@@ -203,9 +205,9 @@
         threadGroup.create_thread([i]() { return ThreadScriptCheck(i); });
     }
 
-    m_node.banman =
-        std::make_unique<BanMan>(GetDataDir() / "banlist.dat", chainparams,
-                                 nullptr, DEFAULT_MISBEHAVING_BANTIME);
+    m_node.banman = std::make_unique<BanMan>(
+        m_args.GetDataDirPath() / "banlist.dat", chainparams, nullptr,
+        DEFAULT_MISBEHAVING_BANTIME);
     // Deterministic randomness for tests.
     m_node.connman = std::make_unique<CConnman>(config, 0x1337, 0x1337);
     m_node.peerman = std::make_unique<PeerManager>(