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test: case: igmp_basic: Speed up positive reception tests

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Use must{,_not}_receive instead of the general sniffer, so that we can
continue the test as soon as we see the transmission at the receiver,
rather than always waiting the full 5s.

While we're here:
- Show the port mappings in the top block-comment
- Define a few more steps to show the user what is going on
This commit is contained in:
Tobias Waldekranz
2024-05-17 23:42:18 +02:00
parent cb13e6510f
commit 3ae03c5ded
1 changed files with 38 additions and 40 deletions
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test/case/infix_interfaces/igmp_basic.py
+38 -40
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@@ -1,17 +1,20 @@
#!/usr/bin/env python3
# 10.0.0.1
# +--------------+
# | DUT |
# | |
# +----------+---\
# | | \
# | | \
# | | \
# | | \
# 10.0.0.2 | 10.0.0.3| \ 10.0.0.4
# +----------+ +---+------+ \ +-------------+
# | msend | | mreceive | + no join |
# +-------+ +----------+ +-------------+
#
# Add join the group 224.1.1.1 from data1 on the host. Send to that
# group from `msend`, verify that `mrecv` receives it and that `!memb`
# does not.
#
# .1
# .---------------------------.
# | DUT |
# '-data0-----data1-----data2-'
# | | |
# | | | 10.0.0.0/24
# | | |
# .-data0-. .-data1-. .-data2-.
# | msend | | mrecv | | !memb |
# '-------' '-------' '-------'
# .2 .3 .4
import infamy
import time
@@ -75,13 +78,15 @@ with infamy.Test() as test:
}
})
with test.step("Check multicast receieved on correct port"):
_, hsend = env.ltop.xlate("host", "data0")
_, hreceive = env.ltop.xlate("host", "data1")
_, hnojoin = env.ltop.xlate("host", "data2")
with infamy.IsolatedMacVlan(hsend) as send_ns, \
infamy.IsolatedMacVlan(hreceive) as receive_ns, \
infamy.IsolatedMacVlan(hnojoin) as nojoin_ns:
_, hsend = env.ltop.xlate("host", "data0")
_, hreceive = env.ltop.xlate("host", "data1")
_, hnojoin = env.ltop.xlate("host", "data2")
with infamy.IsolatedMacVlan(hsend) as send_ns, \
infamy.IsolatedMacVlan(hreceive) as receive_ns, \
infamy.IsolatedMacVlan(hnojoin) as nojoin_ns:
with test.step("Setup sender and receivers"):
send_ns.addip("10.0.0.2")
receive_ns.addip("10.0.0.3")
nojoin_ns.addip("10.0.0.4")
@@ -89,25 +94,18 @@ with infamy.Test() as test:
receive_ns.must_reach("10.0.0.1")
nojoin_ns.must_reach("10.0.0.1")
sender = mcast.MCastSender(send_ns, "224.1.1.1")
receiver = mcast.MCastReceiver(receive_ns, "224.1.1.1")
snif_nojoin = infamy.Sniffer(nojoin_ns, "host 224.1.1.1")
snif_receiver = infamy.Sniffer(receive_ns, "host 224.1.1.1")
with sender:
with snif_receiver:
time.sleep(5)
with snif_nojoin:
time.sleep(5)
assert(snif_receiver.packets() != "")
assert(snif_nojoin.packets() != "")
print("As expected, unregistered multicast is received on both ports")
print("Starting sender")
with mcast.MCastSender(send_ns, "224.1.1.1"):
with test.step("Verify that the group is flooded on all ports"):
infamy.parallel(lambda: receive_ns.must_receive("ip dst 224.1.1.1"),
lambda: nojoin_ns.must_receive("ip dst 224.1.1.1"))
with receiver:
with snif_receiver,snif_nojoin:
time.sleep(5)
assert(snif_nojoin.packets() == "")
print("As expected, registered multicast is NOT forwarded to non-member port")
assert(snif_receiver.packets() != "")
print("As expected, registered multicast is forwarded to the member port")
print("Subscribe to the group")
with mcast.MCastReceiver(receive_ns, "224.1.1.1"):
with test.step("Verify that the group is still forwarded to the member"):
receive_ns.must_receive("ip dst 224.1.1.1")
test.succeed()
with test.step("Verify that the group is no longer forwarded to the non-member"):
nojoin_ns.must_not_receive("ip dst 224.1.1.1")
test.succeed()