Move more unit tests to bazel (#6250)

* move more unit tests to bazel

* move to avoid conflict

* fix lint

* fix deps

* seprate

* fix failing tests

* show tests

* ignore mismatch

* try combining bazel runs

* build lint

* remove tests from install

* fix test utils

* better config

* split up

* exclusive

* fix verbosity

* fix tests class

* cleanup

* remove flaky

* fix metrics test

* Update .travis.yml

* no retry flaky

* split up actor

* split basic test

* split up trial runner test

* split stress

* fix basic test

* fix tests

* switch to pytest runner for main

* make microbench not fail

* move load code to py3

* test is no longer package

* bazel to end

python/ray/tests/test_unreconstructable_errors.py

@@ -44,4 +44,6 @@ class TestUnreconstructableErrors(unittest.TestCase):
 
 
 if __name__ == "__main__":
-    unittest.main(verbosity=2)
+    import pytest
+    import sys
+    sys.exit(pytest.main(["-v", __file__]))