tests: remove legacy Topo class (fixes many pylint errors)

Signed-off-by: Christian Hopps <chopps@labn.net>

1 files changed, 4 insertions, 20 deletions

diff --git a/tests/topotests/ospf_dual_stack/test_ospf_dual_stack.py b/tests/topotests/ospf_dual_stack/test_ospf_dual_stack.py
index f4d98fddb8..fda9892f29 100644
--- a/tests/topotests/ospf_dual_stack/test_ospf_dual_stack.py
+++ b/tests/topotests/ospf_dual_stack/test_ospf_dual_stack.py
@@ -48,29 +48,10 @@ pytestmark = [pytest.mark.ospfd, pytest.mark.staticd]
 # Global variables
 topo = None
 
-# Reading the data from JSON File for topology creation
-jsonFile = "{}/test_ospf_dual_stack.json".format(CWD)
-try:
-    with open(jsonFile, "r") as topoJson:
-        topo = json.load(topoJson)
-except IOError:
-    assert False, "Could not read file {}".format(jsonFile)
-
-
-class CreateTopo(Topo):
-    """Test topology builder."""
-
-    def build(self, *_args, **_opts):
-        """Build function."""
-        tgen = get_topogen(self)
-
-        # Building topology from json file
-        build_topo_from_json(tgen, topo)
 
 
 def setup_module(mod):
     """Sets up the pytest environment."""
-    global topo
     testsuite_run_time = time.asctime(time.localtime(time.time()))
     logger.info("Testsuite start time: {}".format(testsuite_run_time))
     logger.info("=" * 40)
@@ -78,7 +59,10 @@ def setup_module(mod):
     logger.info("Running setup_module to create topology")
 
     # This function initiates the topology build with Topogen...
-    tgen = Topogen(CreateTopo, mod.__name__)
+    json_file = "{}/test_ospf_dual_stack.json".format(CWD)
+    tgen = Topogen(json_file, mod.__name__)
+    global topo
+    topo = tgen.json_topo
     # ... and here it calls Mininet initialization functions.
 
     # get list of daemons needs to be started for this suite.