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selftests: drv-net: validate the environment

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Throw a slightly more helpful exception when env variables
are partially populated. Prior to this change we'd get
a dictionary key exception somewhere later on.

Reviewed-by: Willem de Bruijn <willemb@google.com>
Link: https://lore.kernel.org/r/20240425222341.309778-4-kuba@kernel.org
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
This commit is contained in:
Jakub Kicinski 2024-04-25 15:23:41 -07:00
parent 64ed7d8190
commit 340ab206ce
1 changed files with 25 additions and 0 deletions
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25
tools/testing/selftests/drivers/net/lib/py/env.py
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@ -88,6 +88,7 @@ class NetDrvEpEnv:
self._ns_peer = None
if "NETIF" in self.env:
self._check_env()
self.dev = ip("link show dev " + self.env['NETIF'], json=True)[0]
self.v4 = self.env.get("LOCAL_V4")
@ -143,6 +144,30 @@ class NetDrvEpEnv:
ip(f"-6 addr add dev {self._ns_peer.nsims[0].ifname} {self.nsim_v6_pfx}2/64 nodad", ns=self._netns)
ip(f" link set dev {self._ns_peer.nsims[0].ifname} up", ns=self._netns)
def _check_env(self):
vars_needed = [
["LOCAL_V4", "LOCAL_V6"],
["REMOTE_V4", "REMOTE_V6"],
["REMOTE_TYPE"],
["REMOTE_ARGS"]
]
missing = []
for choice in vars_needed:
for entry in choice:
if entry in self.env:
break
else:
missing.append(choice)
# Make sure v4 / v6 configs are symmetric
if ("LOCAL_V6" in self.env) != ("REMOTE_V6" in self.env):
missing.append(["LOCAL_V6", "REMOTE_V6"])
if ("LOCAL_V4" in self.env) != ("REMOTE_V4" in self.env):
missing.append(["LOCAL_V4", "REMOTE_V4"])
if missing:
raise Exception("Invalid environment, missing configuration:", missing,
"Please see tools/testing/selftests/drivers/net/README.rst")
def __enter__(self):
return self