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topotato: test_bgp_dynamic_capability_role.py & test_bgp_dynamic_capability_software_version.py #124

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topotato: test_bgp_dynamic_capability_role.py & test_bgp_dynamic_capability_software_version.py #124

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139 changes: 139 additions & 0 deletions test_bgp_dynamic_capability_role.py
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Original file line number Diff line number Diff line change
@@ -0,0 +1,139 @@
# SPDX-License-Identifier: GPL-2.0-or-later
# Copyright (C) 2023 Nathan Mangar

"""
Test if role capability is exchanged dynamically.
"""

__topotests_file__ = "bgp_dynamic_capability/test_bgp_dynamic_capability_role.py"
__topotests_gitrev__ = "2b5236dbb3f41a397a6add688e8a4e8ce8c717e8"

# pylint: disable=invalid-name, missing-class-docstring, missing-function-docstring, line-too-long, consider-using-f-string, wildcard-import, unused-wildcard-import, f-string-without-interpolation, too-few-public-methods, unused-argument

from topotato import *


@topology_fixture()
def topology(topo):
"""
[ r1 ]
|
{ s1 }
|
[ r2 ]
"""

topo.router("r1").iface_to("s1").ip4.append("192.168.1.1/24")
topo.router("r2").iface_to("s1").ip4.append("192.168.1.2/24")


class Configs(FRRConfigs):
routers = ["r1", "r2"]

zebra = """
#% extends "boilerplate.conf"
#% block main
#% for iface in router.ifaces
interface {{ iface.ifname }}
ip address {{ iface.ip4[0] }}
!
#% endfor
ip forwarding
!
#% endblock
"""

bgpd = """
#% block main
#% if router.name == 'r1'
router bgp 65001
no bgp ebgp-requires-policy
neighbor {{ routers.r2.iface_to('s1').ip4[0].ip }} remote-as external
neighbor {{ routers.r2.iface_to('s1').ip4[0].ip }} timers 1 3
neighbor {{ routers.r2.iface_to('s1').ip4[0].ip }} timers connect 1
neighbor {{ routers.r2.iface_to('s1').ip4[0].ip }} capability dynamic
!
#% elif router.name == 'r2'
router bgp 65002
no bgp ebgp-requires-policy
neighbor {{ routers.r1.iface_to('s1').ip4[0].ip }} remote-as external
neighbor {{ routers.r1.iface_to('s1').ip4[0].ip }} timers 1 3
neighbor {{ routers.r1.iface_to('s1').ip4[0].ip }} timers connect 1
neighbor {{ routers.r1.iface_to('s1').ip4[0].ip }} capability dynamic
!
#% endif
#% endblock
"""


class BGPDynamicCapabilityRole(TestBase, AutoFixture, topo=topology, configs=Configs):
@topotatofunc
def bgp_converge(self, r1, r2):
expected = {
str(r2.iface_to("s1").ip4[0].ip): {
"bgpState": "Established",
"localRole": "undefined",
"remoteRole": "undefined",
"neighborCapabilities": {
"dynamic": "advertisedAndReceived",
},
"connectionsEstablished": 1,
"connectionsDropped": 0,
}
}

yield from AssertVtysh.make(
r1,
"bgpd",
f"show bgp neighbor json",
maxwait=5.0,
compare=expected,
)

@topotatofunc
def bgp_check_if_session_not_reset(self, r1, r2):
expected = {
str(r2.iface_to("s1").ip4[0].ip): {
"bgpState": "Established",
"localRole": "customer",
"remoteRole": "provider",
"neighborCapabilities": {
"dynamic": "advertisedAndReceived",
"role": "advertisedAndReceived",
},
"connectionsEstablished": 1,
"connectionsDropped": 0,
}
}

yield from AssertVtysh.make(
r1,
"vtysh",
"""
configure terminal
router bgp
neighbor 192.168.1.2 local-role customer

""",
compare="",
)

yield from AssertVtysh.make(
r2,
"vtysh",
"""
configure terminal
router bgp
neighbor 192.168.1.1 local-role customer

""",
compare="",
)

yield from AssertVtysh.make(
r1,
"bgpd",
f"show bgp neighbor json",
maxwait=5.0,
compare=expected,
)
149 changes: 149 additions & 0 deletions test_bgp_dynamic_capability_software_version.py
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Original file line number Diff line number Diff line change
@@ -0,0 +1,149 @@
# SPDX-License-Identifier: GPL-2.0-or-later
# Copyright (C) 2023 Nathan Mangar

"""
Test if software version capability is exchanged dynamically.
"""

__topotests_file__ = (
"bgp_dynamic_capability/test_bgp_dynamic_capability_software_version.py"
)
__topotests_gitrev__ = "2b5236dbb3f41a397a6add688e8a4e8ce8c717e8"

# pylint: disable=invalid-name, missing-class-docstring, missing-function-docstring, line-too-long, consider-using-f-string, wildcard-import, unused-wildcard-import, f-string-without-interpolation, too-few-public-methods, unused-argument

from topotato import *


@topology_fixture()
def topology(topo):
"""
[ r1 ]
|
{ s1 }
|
[ r2 ]
"""

topo.router("r1").iface_to("s1").ip4.append("192.168.1.1/24")
topo.router("r2").iface_to("s1").ip4.append("192.168.1.2/24")


class Configs(FRRConfigs):
routers = ["r1", "r2"]

zebra = """
#% extends "boilerplate.conf"
#% block main
#% for iface in router.ifaces
interface {{ iface.ifname }}
ip address {{ iface.ip4[0] }}
!
#% endfor
ip forwarding
!
#% endblock
"""

bgpd = """
#% block main
#% if router.name == 'r1'
router bgp 65001
no bgp ebgp-requires-policy
neighbor {{ routers.r2.iface_to('s1').ip4[0].ip }} remote-as external
neighbor {{ routers.r2.iface_to('s1').ip4[0].ip }} timers 1 3
neighbor {{ routers.r2.iface_to('s1').ip4[0].ip }} timers connect 1
neighbor {{ routers.r2.iface_to('s1').ip4[0].ip }} capability dynamic
!
#% elif router.name == 'r2'
router bgp 65002
no bgp ebgp-requires-policy
neighbor {{ routers.r1.iface_to('s1').ip4[0].ip }} remote-as external
neighbor {{ routers.r1.iface_to('s1').ip4[0].ip }} timers 1 3
neighbor {{ routers.r1.iface_to('s1').ip4[0].ip }} timers connect 1
neighbor {{ routers.r1.iface_to('s1').ip4[0].ip }} capability dynamic
!
#% endif
#% endblock
"""


class BGPDynamicCapabilitySoftwareVersion(
TestBase, AutoFixture, topo=topology, configs=Configs
):
@topotatofunc
def bgp_converge(self, r1, r2):
expected = {
str(r2.iface_to("s1").ip4[0].ip): {
"bgpState": "Established",
"localRole": "undefined",
"remoteRole": "undefined",
"neighborCapabilities": {
"dynamic": "advertisedAndReceived",
},
"connectionsEstablished": 1,
"connectionsDropped": 0,
}
}

yield from AssertVtysh.make(
r1,
"bgpd",
f"show bgp neighbor json",
maxwait=5.0,
compare=expected,
)

@topotatofunc
def bgp_check_if_session_not_reset(self, r1, r2):
# the function to fetch the versions is a work in progress :(

adv = "FRRouting/9.1-dev-MyOwnFRRVersion-g700ef0dd2"
rcv = "FRRouting/9.1-dev-MyOwnFRRVersion-g700ef0dd2"

expected = {
str(r2.iface_to("s1").ip4[0].ip): {
"bgpState": "Established",
"neighborCapabilities": {
"dynamic": "advertisedAndReceived",
"softwareVersion": {
"advertisedSoftwareVersion": adv,
"receivedSoftwareVersion": rcv,
},
},
"connectionsEstablished": 1,
"connectionsDropped": 0,
}
}

yield from AssertVtysh.make(
r1,
"vtysh",
"""
configure terminal
router bgp
neighbor 192.168.1.2 capability software-version

""",
compare="",
)

yield from AssertVtysh.make(
r2,
"vtysh",
"""
configure terminal
router bgp
neighbor 192.168.1.1 capability software-version

""",
compare="",
)

yield from AssertVtysh.make(
r1,
"bgpd",
f"show bgp neighbor json",
maxwait=5.0,
compare=expected,
)