Expand mypy coverage in root project.

lib/galaxy_test/api/test_libraries.py

@@ -229,7 +229,7 @@ class LibrariesApiTestCase(ApiTestCase, TestsDatasets):
         dataset = self.library_populator.get_library_contents_with_path(library["id"], "/4.bed")
         assert dataset["file_size"] == 61, dataset
 
-    @unittest.skip  # reference URLs changed, checksums now invalid.
+    @unittest.skip("reference URLs changed, checksums now invalid.")
     def test_fetch_bagit_archive_to_folder(self):
         history_id, library, destination = self._setup_fetch_to_folder("bagit_archive")
         example_bag_path = self.test_data_resolver.get_filename("example-bag.zip")

lib/galaxy_test/selenium/test_library_to_collections.py

@@ -6,7 +6,7 @@ from .framework import (
 )
 
 
-@unittest.skip
+@unittest.skip("https://github.com/galaxyproject/galaxy/pull/5754")
 class LibraryToCollectionsTestCase(SeleniumTestCase):
 
     requires_admin = True

tox.ini

@@ -13,7 +13,7 @@ commands =
 
     unit: bash run_tests.sh -u
     # start with test here but obviously someday all of it...
-    mypy: mypy test
+    mypy: mypy test lib/galaxy lib/galaxy_test
 whitelist_externals = bash
 passenv = 
     CI CONDA_EXE