Fix gSeaGen reader

km3io/gseagen.py

@@ -11,15 +11,15 @@ from .tools import cached_property
 class GSGReader(EventReader):
     """reader for gSeaGen ROOT files"""
 
+    header_key = "Header"
     event_path = "Events"
-    skip_keys = ["Header"]
+    skip_keys = [header_key]
 
     @cached_property
     def header(self):
-        header_key = "Header"
-        if header_key in self._fobj:
+        if self.header_key in self._fobj:
             header = {}
-            for k, v in self._fobj[header_key].items():
+            for k, v in self._fobj[self.header_key].items():
                 v = v.array()[0]
                 if isinstance(v, bytes):
                     try:

tests/test_gseagen.py

@@ -61,12 +61,6 @@ class TestGSGHeader(unittest.TestCase):
         assert self.header["NNu"] == 2
         self.assertListEqual(self.header["NuList"].tolist(), [-14, 14])
 
-    @unittest.skip
-    def test_unsupported_header(self):
-        f = GSGReader(data_path("online/km3net_online.root"))
-        with self.assertWarns(UserWarning):
-            f.header
-
 
 class TestGSGEvents(unittest.TestCase):
     def setUp(self):