Stabilize parallel AuTest helpers

tests/gold_tests/logging/ts_process_handler.py

@@ -36,7 +36,10 @@ def __init__(self, message):
 def get_ts_process_pid(ts_identifier):
     processes = []
     for proc in psutil.process_iter(['cmdline']):
-        commandline = ' '.join(proc.info['cmdline'])
+        cmdline = proc.info.get('cmdline', [])
+        if not cmdline:
+            continue
+        commandline = ' '.join(cmdline)
         if '/traffic_server' in commandline and ts_identifier in commandline:
             return proc
     raise GetPidError("Could not find a traffic_server process")

tests/gold_tests/redirect/.gitignore

@@ -1 +1,2 @@
-generated_test_data/
+redirect_actions_generated_test_data/
+redirect_generated_test_data/

tests/gold_tests/redirect/redirect.test.py

@@ -69,7 +69,7 @@
 
 dns.addRecords(records={"iwillredirect.test": ["127.0.0.1"]})
 
-data_dirname = 'generated_test_data'
+data_dirname = 'redirect_generated_test_data'
 data_path = os.path.join(Test.TestDirectory, data_dirname)
 os.makedirs(data_path, exist_ok=True)
 

tests/gold_tests/redirect/redirect_actions.test.py

@@ -92,7 +92,7 @@
 # Map scenarios to trafficserver processes.
 trafficservers = {}
 
-data_dirname = 'generated_test_data'
+data_dirname = 'redirect_actions_generated_test_data'
 data_path = os.path.join(Test.TestDirectory, data_dirname)
 os.makedirs(data_path, exist_ok=True)