Add a test case that switches devel project in its life time

tests/tree_test.py

@@ -65,6 +65,9 @@ class TestTreeMethods(unittest.TestCase):
     def test_000update_repos_tree(self):
         self.verify_package("000update-repos")
 
+    def test_breeze_tree(self):
+        self.verify_package("breeze")
+
 
 if __name__ == "__main__":
     unittest.main()