diff --git a/bin/run_tests_for_developer.sh b/bin/run_tests_for_developer.sh
index 778dcf4..ef4d66e 100755
--- a/bin/run_tests_for_developer.sh
+++ b/bin/run_tests_for_developer.sh
@@ -1,7 +1,14 @@
 #! /bin/sh
+echo "Building container"
 docker build \
   --build-arg INSTANT_CLIENT_ZIP=${INSTANT_CLIENT_ZIP} \
   -t etlhelper-test-runner . || exit 1
+
+echo "Flake8 checks"
+docker run \
+  etlhelper-test-runner flake8 etlhelper test || exit 1
+
+echo "Unit and integration tests"
 docker run \
   -e TEST_PG_PASSWORD="${TEST_PG_PASSWORD}" \
   -e TEST_ORACLE_DBTYPE="${TEST_ORACLE_DBTYPE}" \
diff --git a/test/integration/db/test_sqlite.py b/test/integration/db/test_sqlite.py
index f3969f3..11d3c97 100644
--- a/test/integration/db/test_sqlite.py
+++ b/test/integration/db/test_sqlite.py
@@ -23,13 +23,15 @@ def test_connect(sqlitedb):
 
 
 @pytest.mark.skipif(sys.platform != 'linux', reason='Requires Linux OS')
-def test_bad_connect():
-    if os.getenv('USER') == 'root':
-        # Don't run for root user, but don't mark as skipped either
-        return
-    db_params = DbParams(dbtype='SQLITE', filename='/cannot_write_to_root')
-    with pytest.raises(ETLHelperConnectionError):
-        connect(db_params)
+def test_bad_connect(tmpdir):
+    # Attemping to create file in non-existent directory should fail
+    try:
+        db_params = DbParams(dbtype='SQLITE', filename='/does/not/exist')
+        with pytest.raises(ETLHelperConnectionError):
+            connect(db_params)
+    finally:
+        # Restore permissions prior to cleanup
+        os.chmod(tmpdir, 0o666)
 
 
 def test_bad_select(testdb_conn):
diff --git a/test/unit/test_db_helpers.py b/test/unit/test_db_helpers.py
index c528ef7..d12299b 100644
--- a/test/unit/test_db_helpers.py
+++ b/test/unit/test_db_helpers.py
@@ -11,21 +11,18 @@
 from etlhelper.db_helper_factory import DB_HELPER_FACTORY
 from etlhelper.db_helpers import (
     OracleDbHelper,
-    SqlServerDbHelper,
-    PostgresDbHelper,
-    SQLiteDbHelper
 )
 
 # pylint: disable=missing-docstring
 
 ORACLEDB = DbParams(dbtype='ORACLE', host='server', port='1521',
-                    dbname='testdb', username='testuser')
+                    dbname='testdb', user='testuser')
 
 MSSQLDB = DbParams(dbtype='MSSQL', host='server', port='1521', dbname='testdb',
-                   username='testuser', odbc_driver='test driver')
+                   user='testuser', odbc_driver='test driver')
 
 POSTGRESDB = DbParams(dbtype='PG', host='server', port='1521', dbname='testdb',
-                      username='testuser', odbc_driver='test driver')
+                      user='testuser', odbc_driver='test driver')
 
 SQLITEDB = DbParams(dbtype='SQLITE', filename='/myfile.db')