reset cached hooks in tests to avoid test hooks leaking into other tests

Author: boegel

test/framework/hooks.py

@@ -32,7 +32,7 @@
 from test.framework.utilities import EnhancedTestCase, TestLoaderFiltered, init_config
 from unittest import TextTestRunner
 
-import easybuild.tools.hooks
+import easybuild.tools.hooks  # so we can reset cached hooks
 from easybuild.tools.build_log import EasyBuildError
 from easybuild.tools.filetools import remove_file, write_file
 from easybuild.tools.hooks import find_hook, load_hooks, run_hook, verify_hooks
@@ -81,6 +81,14 @@ def setUp(self):
         ])
         write_file(self.test_hooks_pymod, test_hooks_pymod_txt)
 
+    def tearDown(self):
+        """Cleanup."""
+
+        # reset cached hooks
+        easybuild.tools.hooks._cached_hooks.clear()
+
+        super(HooksTest, self).tearDown()
+
     def test_load_hooks(self):
         """Test for load_hooks function."""
 

test/framework/toy_build.py

@@ -101,6 +101,9 @@ def tearDown(self):
         del sys.modules['easybuild.easyblocks.toytoy']
         del sys.modules['easybuild.easyblocks.generic.toy_extension']
 
+        # reset cached hooks
+        easybuild.tools.hooks._cached_hooks.clear()
+
         super(ToyBuildTest, self).tearDown()
 
         # remove logs