diff --git a/src/test/dbwrapper_tests.cpp b/src/test/dbwrapper_tests.cpp
index 753e2fb45a..4c6076178f 100644
--- a/src/test/dbwrapper_tests.cpp
+++ b/src/test/dbwrapper_tests.cpp
@@ -27,7 +27,7 @@ BOOST_AUTO_TEST_CASE(dbwrapper)
 {
     // Perform tests both obfuscated and non-obfuscated.
     for (bool obfuscate : {false, true}) {
-        fs::path ph = fs::temp_directory_path() / fs::unique_path();
+        fs::path ph = SetDataDir(std::string("dbwrapper").append(obfuscate ? "_true" : "_false"));
         CDBWrapper dbw(ph, (1 << 20), true, false, obfuscate);
         char key = 'k';
         uint256 in = InsecureRand256();
@@ -47,7 +47,7 @@ BOOST_AUTO_TEST_CASE(dbwrapper_batch)
 {
     // Perform tests both obfuscated and non-obfuscated.
     for (bool obfuscate : {false, true}) {
-        fs::path ph = fs::temp_directory_path() / fs::unique_path();
+        fs::path ph = SetDataDir(std::string("dbwrapper_batch").append(obfuscate ? "_true" : "_false"));
         CDBWrapper dbw(ph, (1 << 20), true, false, obfuscate);
 
         char key = 'i';
@@ -83,7 +83,7 @@ BOOST_AUTO_TEST_CASE(dbwrapper_iterator)
 {
     // Perform tests both obfuscated and non-obfuscated.
     for (bool obfuscate : {false, true}) {
-        fs::path ph = fs::temp_directory_path() / fs::unique_path();
+        fs::path ph = SetDataDir(std::string("dbwrapper_iterator").append(obfuscate ? "_true" : "_false"));
         CDBWrapper dbw(ph, (1 << 20), true, false, obfuscate);
 
         // The two keys are intentionally chosen for ordering
@@ -123,7 +123,7 @@ BOOST_AUTO_TEST_CASE(dbwrapper_iterator)
 BOOST_AUTO_TEST_CASE(existing_data_no_obfuscate)
 {
     // We're going to share this fs::path between two wrappers
-    fs::path ph = fs::temp_directory_path() / fs::unique_path();
+    fs::path ph = SetDataDir("existing_data_no_obfuscate");
     create_directories(ph);
 
     // Set up a non-obfuscated wrapper to write some initial data.
@@ -164,7 +164,7 @@ BOOST_AUTO_TEST_CASE(existing_data_no_obfuscate)
 BOOST_AUTO_TEST_CASE(existing_data_reindex)
 {
     // We're going to share this fs::path between two wrappers
-    fs::path ph = fs::temp_directory_path() / fs::unique_path();
+    fs::path ph = SetDataDir("existing_data_reindex");
     create_directories(ph);
 
     // Set up a non-obfuscated wrapper to write some initial data.
@@ -199,7 +199,7 @@ BOOST_AUTO_TEST_CASE(existing_data_reindex)
 
 BOOST_AUTO_TEST_CASE(iterator_ordering)
 {
-    fs::path ph = fs::temp_directory_path() / fs::unique_path();
+    fs::path ph = SetDataDir("iterator_ordering");
     CDBWrapper dbw(ph, (1 << 20), true, false, false);
     for (int x=0x00; x<256; ++x) {
         uint8_t key = x;
@@ -277,7 +277,7 @@ BOOST_AUTO_TEST_CASE(iterator_string_ordering)
 {
     char buf[10];
 
-    fs::path ph = fs::temp_directory_path() / fs::unique_path();
+    fs::path ph = SetDataDir("iterator_string_ordering");
     CDBWrapper dbw(ph, (1 << 20), true, false, false);
     for (int x=0x00; x<10; ++x) {
         for (int y = 0; y < 10; y++) {
diff --git a/src/test/test_dash.cpp b/src/test/test_dash.cpp
index 6b7ce986ef..8de199b61f 100644
--- a/src/test/test_dash.cpp
+++ b/src/test/test_dash.cpp
@@ -53,42 +53,50 @@ extern bool fPrintToConsole;
 extern void noui_connect();
 
 BasicTestingSetup::BasicTestingSetup(const std::string& chainName)
+    : m_path_root(fs::temp_directory_path() / "test_bitcoin" / strprintf("%lu_%i", (unsigned long)GetTime(), (int)(InsecureRandRange(1 << 30))))
 {
-        SHA256AutoDetect();
-        RandomInit();
-        ECC_Start();
-        BLSInit();
-        SetupEnvironment();
-        SetupNetworking();
-        InitSignatureCache();
-        InitScriptExecutionCache();
-        CPrivateSend::InitStandardDenominations();
-        fPrintToDebugLog = false; // don't want to write to debug.log file
-        fCheckBlockIndex = true;
-        SelectParams(chainName);
-        evoDb.reset(new CEvoDB(1 << 20, true, true));
-        deterministicMNManager.reset(new CDeterministicMNManager(*evoDb));
-        noui_connect();
+    SHA256AutoDetect();
+    RandomInit();
+    ECC_Start();
+    BLSInit();
+    SetupEnvironment();
+    SetupNetworking();
+    InitSignatureCache();
+    InitScriptExecutionCache();
+    CPrivateSend::InitStandardDenominations();
+    fPrintToDebugLog = false; // don't want to write to debug.log file
+    fCheckBlockIndex = true;
+    SelectParams(chainName);
+    evoDb.reset(new CEvoDB(1 << 20, true, true));
+    deterministicMNManager.reset(new CDeterministicMNManager(*evoDb));
+    noui_connect();
 }
 
 BasicTestingSetup::~BasicTestingSetup()
 {
-        deterministicMNManager.reset();
-        evoDb.reset();
+    deterministicMNManager.reset();
+    evoDb.reset();
 
-        ECC_Stop();
+    fs::remove_all(m_path_root);
+    ECC_Stop();
+}
+
+fs::path BasicTestingSetup::SetDataDir(const std::string& name)
+{
+    fs::path ret = m_path_root / name;
+    fs::create_directories(ret);
+    gArgs.ForceSetArg("-datadir", ret.string());
+    return ret;
 }
 
 TestingSetup::TestingSetup(const std::string& chainName) : BasicTestingSetup(chainName)
 {
+    SetDataDir("tempdir");
     const CChainParams& chainparams = Params();
         // Ideally we'd move all the RPC tests to the functional testing framework
         // instead of unit tests, but for now we need these here.
         RegisterAllCoreRPCCommands(tableRPC);
         ClearDatadirCache();
-        pathTemp = fs::temp_directory_path() / strprintf("test_dash_%lu_%i", (unsigned long)GetTime(), (int)(InsecureRandRange(100000)));
-        fs::create_directories(pathTemp);
-        gArgs.ForceSetArg("-datadir", pathTemp.string());
 
         // We have to run a scheduler thread to prevent ActivateBestChain
         // from blocking due to queue overrun.
@@ -131,7 +139,6 @@ TestingSetup::~TestingSetup()
         llmq::DestroyLLMQSystem();
         pcoinsdbview.reset();
         pblocktree.reset();
-        fs::remove_all(pathTemp);
 }
 
 TestChainSetup::TestChainSetup(int blockCount) : TestingSetup(CBaseChainParams::REGTEST)
diff --git a/src/test/test_dash.h b/src/test/test_dash.h
index c3dd84be61..a1ede8d5f7 100644
--- a/src/test/test_dash.h
+++ b/src/test/test_dash.h
@@ -51,6 +51,11 @@ struct BasicTestingSetup {
 
     explicit BasicTestingSetup(const std::string& chainName = CBaseChainParams::MAIN);
     ~BasicTestingSetup();
+
+    fs::path SetDataDir(const std::string& name);
+
+private:
+    const fs::path m_path_root;
 };
 
 /** Testing setup that configures a complete environment.
@@ -65,7 +70,6 @@ struct CConnmanTest {
 
 class PeerLogicValidation;
 struct TestingSetup: public BasicTestingSetup {
-    fs::path pathTemp;
     boost::thread_group threadGroup;
     CConnman* connman;
     CScheduler scheduler;
diff --git a/src/test/util_tests.cpp b/src/test/util_tests.cpp
index 7a0da6d195..32647b877a 100644
--- a/src/test/util_tests.cpp
+++ b/src/test/util_tests.cpp
@@ -1108,7 +1108,7 @@ static void TestOtherProcess(fs::path dirname, std::string lockname, int fd)
 
 BOOST_AUTO_TEST_CASE(test_LockDirectory)
 {
-    fs::path dirname = fs::temp_directory_path() / fs::unique_path();
+    fs::path dirname = SetDataDir("test_LockDirectory") / fs::unique_path();
     const std::string lockname = ".lock";
 #ifndef WIN32
     // Revert SIGCHLD to default, otherwise boost.test will catch and fail on
@@ -1196,12 +1196,12 @@ BOOST_AUTO_TEST_CASE(test_LockDirectory)
 
 BOOST_AUTO_TEST_CASE(test_DirIsWritable)
 {
-    // Should be able to write to the system tmp dir.
-    fs::path tmpdirname = fs::temp_directory_path();
+    // Should be able to write to the data dir.
+    fs::path tmpdirname = SetDataDir("test_DirIsWritable");
     BOOST_CHECK_EQUAL(DirIsWritable(tmpdirname), true);
 
     // Should not be able to write to a non-existent dir.
-    tmpdirname = fs::temp_directory_path() / fs::unique_path();
+    tmpdirname = tmpdirname / fs::unique_path();
     BOOST_CHECK_EQUAL(DirIsWritable(tmpdirname), false);
 
     fs::create_directory(tmpdirname);
diff --git a/src/wallet/test/wallet_tests.cpp b/src/wallet/test/wallet_tests.cpp
index 33c2d0b173..bd1e63b0cd 100644
--- a/src/wallet/test/wallet_tests.cpp
+++ b/src/wallet/test/wallet_tests.cpp
@@ -469,6 +469,8 @@ BOOST_FIXTURE_TEST_CASE(importwallet_rescan, TestChain100Setup)
 
     LOCK(cs_main);
 
+    std::string backup_file = (SetDataDir("importwallet_rescan") / "wallet.backup").string();
+
     // Import key into wallet and call dumpwallet to create backup file.
     {
         CWallet wallet("dummy", WalletDatabase::CreateDummy());
@@ -478,7 +480,7 @@ BOOST_FIXTURE_TEST_CASE(importwallet_rescan, TestChain100Setup)
 
         JSONRPCRequest request;
         request.params.setArray();
-        request.params.push_back((pathTemp / "wallet.backup").string());
+        request.params.push_back(backup_file);
         AddWallet(&wallet);
         ::dumpwallet(request);
         RemoveWallet(&wallet);
@@ -491,7 +493,7 @@ BOOST_FIXTURE_TEST_CASE(importwallet_rescan, TestChain100Setup)
 
         JSONRPCRequest request;
         request.params.setArray();
-        request.params.push_back((pathTemp / "wallet.backup").string());
+        request.params.push_back(backup_file);
         AddWallet(&wallet);
         ::importwallet(request);
         RemoveWallet(&wallet);