[Tests] determine_tests_to_run.sh has a bug affecting RLlib testing to be skipped sometimes. (#7243)

ci/travis/determine_tests_to_run.py

@@ -4,6 +4,7 @@ from __future__ import division
 from __future__ import print_function
 
 import os
+import re
 import subprocess
 import sys
 from functools import partial
@@ -54,13 +55,13 @@ if __name__ == "__main__":
         ]
 
         for changed_file in files:
-            if changed_file.startswith("python/ray/tune/"):
+            if changed_file.startswith("python/ray/tune"):
                 RAY_CI_TUNE_AFFECTED = 1
                 RAY_CI_RLLIB_AFFECTED = 1
                 RAY_CI_RLLIB_FULL_AFFECTED = 1
                 RAY_CI_LINUX_WHEELS_AFFECTED = 1
                 RAY_CI_MACOS_WHEELS_AFFECTED = 1
-            elif changed_file.startswith("python/ray/rllib/"):
+            elif re.match("^(python/ray/)?rllib/", changed_file):
                 RAY_CI_RLLIB_AFFECTED = 1
                 RAY_CI_RLLIB_FULL_AFFECTED = 1
                 RAY_CI_LINUX_WHEELS_AFFECTED = 1

rllib/agents/a3c/__init__.py

@@ -7,6 +7,10 @@ A2CAgent = renamed_agent(A2CTrainer)
 A3CAgent = renamed_agent(A3CTrainer)
 
 __all__ = [
-    "A2CAgent", "A3CAgent", "A2CTrainer", "A3CTrainer", "DEFAULT_CONFIG",
+    "A2CAgent",
+    "A3CAgent",
+    "A2CTrainer",
+    "A3CTrainer",
+    "DEFAULT_CONFIG",
     "A2CPipeline"
 ]