diff --git a/src/wallet/db.h b/src/wallet/db.h
--- a/src/wallet/db.h
+++ b/src/wallet/db.h
@@ -18,7 +18,8 @@
 
 /**
  * Given a wallet directory path or legacy file path, return path to main data
- * file in the wallet database. */
+ * file in the wallet database.
+ */
 fs::path WalletDataFilePath(const fs::path &wallet_path);
 void SplitWalletPath(const fs::path &wallet_path, fs::path &env_directory,
                      std::string &database_filename);
@@ -168,4 +169,55 @@
     MakeBatch(const char *mode = "r+", bool flush_on_close = true) = 0;
 };
 
+/** RAII class that provides access to a DummyDatabase. Never fails. */
+class DummyBatch : public DatabaseBatch {
+private:
+    bool ReadKey(CDataStream &&key, CDataStream &value) override {
+        return true;
+    }
+    bool WriteKey(CDataStream &&key, CDataStream &&value,
+                  bool overwrite = true) override {
+        return true;
+    }
+    bool EraseKey(CDataStream &&key) override { return true; }
+    bool HasKey(CDataStream &&key) override { return true; }
+
+public:
+    void Flush() override {}
+    void Close() override {}
+
+    bool StartCursor() override { return true; }
+    bool ReadAtCursor(CDataStream &ssKey, CDataStream &ssValue,
+                      bool &complete) override {
+        return true;
+    }
+    void CloseCursor() override {}
+    bool TxnBegin() override { return true; }
+    bool TxnCommit() override { return true; }
+    bool TxnAbort() override { return true; }
+};
+
+/**
+ * A dummy WalletDatabase that does nothing and never fails. Only used by unit
+ * tests.
+ */
+class DummyDatabase : public WalletDatabase {
+public:
+    void Open(const char *mode) override{};
+    void AddRef() override {}
+    void RemoveRef() override {}
+    bool Rewrite(const char *pszSkip = nullptr) override { return true; }
+    bool Backup(const std::string &strDest) const override { return true; }
+    void Close() override {}
+    void Flush() override {}
+    bool PeriodicFlush() override { return true; }
+    void IncrementUpdateCounter() override { ++nUpdateCounter; }
+    void ReloadDbEnv() override {}
+    bool Verify(bilingual_str &errorStr) override { return true; }
+    std::unique_ptr<DatabaseBatch>
+    MakeBatch(const char *mode = "r+", bool flush_on_close = true) override {
+        return std::make_unique<DummyBatch>();
+    }
+};
+
 #endif // BITCOIN_WALLET_DB_H
diff --git a/src/wallet/walletdb.cpp b/src/wallet/walletdb.cpp
--- a/src/wallet/walletdb.cpp
+++ b/src/wallet/walletdb.cpp
@@ -1135,7 +1135,7 @@
  * Return object for accessing dummy database with no read/write capabilities.
  */
 std::unique_ptr<WalletDatabase> CreateDummyWalletDatabase() {
-    return std::make_unique<BerkeleyDatabase>();
+    return std::make_unique<DummyDatabase>();
 }
 
 /** Return object for accessing temporary in-memory database. */