Fix audit command bug (#24)

* fix str join bug

* add integration testing for audit command

Author: seanbudd

appveyor.yml

@@ -53,6 +53,7 @@ test_script:
   - test_full_refresh_from_mssql.cmd
   - test_incremental_refresh_from_csv.cmd
   - test_incremental_refresh_from_mssql.cmd
+  - test_audit.cmd
 
   - test_full_refresh_from_mssql.cmd
   - test_incremental_refresh_from_mssql.cmd
@@ -64,6 +65,7 @@ test_script:
   - sqlcmd -b -E -f 65001 -S "(local)\SQL2016" -d RelationalDataLoaderIntegrationTestSource -i .\integration_tests\mssql_source\source_database_setup\change_large_table.sql
 
   - test_full_refresh_from_mssql.cmd
+  - test_audit.cmd
 
 on_finish:
   #Enable this line to make the build pause after completion for RDP troubleshooting.

rdl/RelationalDataLoader.py

@@ -47,7 +47,7 @@ def execute_audit_command(self):
 
         results = _AUDIT_FUNCTION_OPTIONS[self.args.model_type](data_load_tracker_repository, last_successful_timestamp)
 
-        print(results.join(" "))
+        print(" ".join(results))
 
     def configure_root_logger(self, log_level):
         # get the root logger

test_audit.cmd

@@ -0,0 +1,5 @@
+py -m rdl audit postgresql+psycopg2://postgres:there_is_no_password_due_to_pg_trust@localhost/relational_data_loader_integration_tests FULL 2019-02-14T01:55:54.123456+00:00 --log-level INFO
+if %errorlevel% neq 0 exit /b %errorlevel%
+
+py -m rdl audit postgresql+psycopg2://postgres:there_is_no_password_due_to_pg_trust@localhost/relational_data_loader_integration_tests INCR 2019-02-14T01:55:54.123456+00:00 --log-level INFO
+if %errorlevel% neq 0 exit /b %errorlevel%