diff --git a/src/noui.h b/src/noui.h
--- a/src/noui.h
+++ b/src/noui.h
@@ -20,4 +20,11 @@
 /** Connect all bitcoind signal handlers */
 void noui_connect();
 
+/** Suppress all bitcoind signal handlers. Used to suppress output during test
+ * runs that produce expected errors */
+void noui_suppress();
+
+/** Reconnects the regular Non-GUI handlers after having used noui_suppress */
+void noui_reconnect();
+
 #endif // BITCOIN_NOUI_H
diff --git a/src/noui.cpp b/src/noui.cpp
--- a/src/noui.cpp
+++ b/src/noui.cpp
@@ -9,11 +9,17 @@
 #include <util/system.h>
 
 #include <boost/signals2/connection.hpp>
+#include <boost/signals2/signal.hpp>
 
 #include <cstdint>
 #include <cstdio>
 #include <string>
 
+/** Store connections so we can disconnect them when suppressing output */
+boost::signals2::connection noui_ThreadSafeMessageBoxConn;
+boost::signals2::connection noui_ThreadSafeQuestionConn;
+boost::signals2::connection noui_InitMessageConn;
+
 bool noui_ThreadSafeMessageBox(const std::string &message,
                                const std::string &caption, unsigned int style) {
     bool fSecure = style & CClientUIInterface::SECURE;
@@ -53,7 +59,43 @@
 }
 
 void noui_connect() {
-    uiInterface.ThreadSafeMessageBox_connect(noui_ThreadSafeMessageBox);
-    uiInterface.ThreadSafeQuestion_connect(noui_ThreadSafeQuestion);
-    uiInterface.InitMessage_connect(noui_InitMessage);
+    noui_ThreadSafeMessageBoxConn =
+        uiInterface.ThreadSafeMessageBox_connect(noui_ThreadSafeMessageBox);
+    noui_ThreadSafeQuestionConn =
+        uiInterface.ThreadSafeQuestion_connect(noui_ThreadSafeQuestion);
+    noui_InitMessageConn = uiInterface.InitMessage_connect(noui_InitMessage);
+}
+
+bool noui_ThreadSafeMessageBoxSuppressed(const std::string &message,
+                                         const std::string &caption,
+                                         unsigned int style) {
+    return false;
+}
+
+bool noui_ThreadSafeQuestionSuppressed(
+    const std::string & /* ignored interactive message */,
+    const std::string &message, const std::string &caption,
+    unsigned int style) {
+    return false;
+}
+
+void noui_InitMessageSuppressed(const std::string &message) {}
+
+void noui_suppress() {
+    noui_ThreadSafeMessageBoxConn.disconnect();
+    noui_ThreadSafeQuestionConn.disconnect();
+    noui_InitMessageConn.disconnect();
+    noui_ThreadSafeMessageBoxConn = uiInterface.ThreadSafeMessageBox_connect(
+        noui_ThreadSafeMessageBoxSuppressed);
+    noui_ThreadSafeQuestionConn = uiInterface.ThreadSafeQuestion_connect(
+        noui_ThreadSafeQuestionSuppressed);
+    noui_InitMessageConn =
+        uiInterface.InitMessage_connect(noui_InitMessageSuppressed);
+}
+
+void noui_reconnect() {
+    noui_ThreadSafeMessageBoxConn.disconnect();
+    noui_ThreadSafeQuestionConn.disconnect();
+    noui_InitMessageConn.disconnect();
+    noui_connect();
 }
diff --git a/src/wallet/test/init_tests.cpp b/src/wallet/test/init_tests.cpp
--- a/src/wallet/test/init_tests.cpp
+++ b/src/wallet/test/init_tests.cpp
@@ -4,6 +4,7 @@
 
 #include <chainparams.h>
 #include <init.h>
+#include <noui.h>
 #include <wallet/wallet.h>
 #include <walletinitinterface.h>
 
@@ -34,19 +35,25 @@
 
 BOOST_AUTO_TEST_CASE(walletinit_verify_walletdir_does_not_exist) {
     SetWalletDir(m_walletdir_path_cases["nonexistent"]);
+    noui_suppress();
     bool result = g_wallet_init_interface.Verify(Params());
+    noui_reconnect();
     BOOST_CHECK(result == false);
 }
 
 BOOST_AUTO_TEST_CASE(walletinit_verify_walletdir_is_not_directory) {
     SetWalletDir(m_walletdir_path_cases["file"]);
+    noui_suppress();
     bool result = g_wallet_init_interface.Verify(Params());
+    noui_reconnect();
     BOOST_CHECK(result == false);
 }
 
 BOOST_AUTO_TEST_CASE(walletinit_verify_walletdir_is_not_relative) {
     SetWalletDir(m_walletdir_path_cases["relative"]);
+    noui_suppress();
     bool result = g_wallet_init_interface.Verify(Params());
+    noui_reconnect();
     BOOST_CHECK(result == false);
 }