[m0][bgp] Add support for m0 in bgp test to simulate both t0 and t1 scenario (#7581)

What is the motivation for this PR?
In current bgp test for m0, just simulate scenario that m0 device performs like t1. But m0 is like both t1 and t0.

How did you do it?
Add suport for m0 in bgp test to simulate both t0 and t1 scenario

How did you verify/test it?
Run tests on m0 topo and t0 topo

Signed-off-by: Yaqiang Zhu <[email protected]>

Author: yaqiangz

tests/bgp/conftest.py

@@ -145,7 +145,7 @@ def restore_nbr_gr(node=None, results=None):
 
 
 @pytest.fixture(scope="module")
-def setup_interfaces(duthosts, enum_rand_one_per_hwsku_frontend_hostname, ptfhost, request, tbinfo):
+def setup_interfaces(duthosts, enum_rand_one_per_hwsku_frontend_hostname, ptfhost, request, tbinfo, topo_scenario):
     """Setup interfaces for the new BGP peers on PTF."""
 
     def _is_ipv4_address(ip_addr):
@@ -449,8 +449,13 @@ def _get_namespace(minigraph_config, intf):
         setup_func = _setup_interfaces_dualtor
     elif tbinfo["topo"]["type"] in ["t0", "mx"]:
         setup_func = _setup_interfaces_t0_or_mx
-    elif tbinfo["topo"]["type"] in set(["t1", "t2", "m0"]):
+    elif tbinfo["topo"]["type"] in set(["t1", "t2"]):
         setup_func = _setup_interfaces_t1_or_t2
+    elif tbinfo["topo"]["type"] == "m0":
+        if topo_scenario == "m0_t1_scenario":
+            setup_func = _setup_interfaces_t1_or_t2
+        else:
+            setup_func = _setup_interfaces_t0_or_mx
     else:
         raise TypeError("Unsupported topology: %s" % tbinfo["topo"]["type"])
 

tests/conftest.py

@@ -1262,8 +1262,8 @@ def pytest_generate_tests(metafunc):
     asics_selected = None
     asic_fixture_name = None
 
+    tbname, tbinfo = get_tbinfo(metafunc)
     if duts_selected is None:
-        tbname, tbinfo = get_tbinfo(metafunc)
         duts_selected = [tbinfo["duts"][0]]
 
     possible_asic_enums = ["enum_asic_index", "enum_frontend_asic_index", "enum_backend_asic_index", "enum_rand_one_asic_index", "enum_rand_one_frontend_asic_index"]
@@ -1340,6 +1340,12 @@ def pytest_generate_tests(metafunc):
     if 'enum_pfc_pause_delay_test_params' in metafunc.fixturenames:
         metafunc.parametrize("enum_pfc_pause_delay_test_params", pfc_pause_delay_test_params(metafunc))
 
+    if 'topo_scenario' in metafunc.fixturenames:
+        if tbinfo['topo']['type'] == 'm0' and 'topo_scenario' in metafunc.fixturenames:
+            metafunc.parametrize('topo_scenario', ['m0_t0_scenario', 'm0_t1_scenario'], scope='module')
+        else:
+            metafunc.parametrize('topo_scenario', ['default'], scope='module')
+
 
 def parametrise_autoneg_tests():
     folder = 'metadata'