TestServerDiscover/valid_first_interface in upd/server_test.go fails on newly cloned repo

[tim-golioth]

In prep for creating a PR, I was following the advice in https://github.com/plgd-dev/go-coap#contributing.

The docker build command seems to have been successful. I did see these errors, but they are related to update-golang.sh:

update-golang.sh: /usr/local/go/bin/go version FAIL
update-golang.sh: /usr/local/go/bin/go run /update-golang/.go FAIL

Here's the output from running the tests using the docker run command from the README:

(master=)$ docker run --mount type=bind,source="$(pwd)",target=/shared,readonly --network=host go-coap:build go test './...'
?   	github.com/plgd-dev/go-coap/v2	[no test files]
ok  	github.com/plgd-dev/go-coap/v2/dtls	9.054s
ok  	github.com/plgd-dev/go-coap/v2/examples/dtls/pki	0.006s
?   	github.com/plgd-dev/go-coap/v2/examples/dtls/pki/client	[no test files]
?   	github.com/plgd-dev/go-coap/v2/examples/dtls/pki/server	[no test files]
?   	github.com/plgd-dev/go-coap/v2/examples/dtls/psk/client	[no test files]
?   	github.com/plgd-dev/go-coap/v2/examples/dtls/psk/server	[no test files]
?   	github.com/plgd-dev/go-coap/v2/examples/mcast/client	[no test files]
?   	github.com/plgd-dev/go-coap/v2/examples/mcast/server	[no test files]
?   	github.com/plgd-dev/go-coap/v2/examples/observe/client	[no test files]
?   	github.com/plgd-dev/go-coap/v2/examples/observe/server	[no test files]
?   	github.com/plgd-dev/go-coap/v2/examples/simple/client	[no test files]
?   	github.com/plgd-dev/go-coap/v2/examples/simple/server	[no test files]
ok  	github.com/plgd-dev/go-coap/v2/message	0.046s
ok  	github.com/plgd-dev/go-coap/v2/message/codes	0.003s
ok  	github.com/plgd-dev/go-coap/v2/message/noresponse	0.002s
ok  	github.com/plgd-dev/go-coap/v2/message/pool	0.005s
?   	github.com/plgd-dev/go-coap/v2/message/status	[no test files]
ok  	github.com/plgd-dev/go-coap/v2/mux	0.003s
ok  	github.com/plgd-dev/go-coap/v2/net	1.408s
ok  	github.com/plgd-dev/go-coap/v2/net/blockwise	0.086s
?   	github.com/plgd-dev/go-coap/v2/net/monitor/inactivity	[no test files]
ok  	github.com/plgd-dev/go-coap/v2/net/observation	0.002s
?   	github.com/plgd-dev/go-coap/v2/pkg/cache	[no test files]
?   	github.com/plgd-dev/go-coap/v2/pkg/connections	[no test files]
?   	github.com/plgd-dev/go-coap/v2/pkg/runner/periodic	[no test files]
ok  	github.com/plgd-dev/go-coap/v2/tcp	7.015s
ok  	github.com/plgd-dev/go-coap/v2/tcp/message	0.002s
ok  	github.com/plgd-dev/go-coap/v2/tcp/message/pool	0.003s
?   	github.com/plgd-dev/go-coap/v2/test/net	[no test files]
udp: handleReceivedMessage(Type: Confirmable, MID: 50054, Code: BadRequest, Token: 2e399c4fa67d9fdb, ContentFormat: text/plain;charset=utf-8): cannot request body without paired request
udp: continueSendingMessage(Type: Acknowledgement, MID: 50054, Code: Code(136), Token: 2e399c4fa67d9fdb): cannot get Block2 option: option not found
--- FAIL: TestServerDiscover (1.50s)
    --- FAIL: TestServerDiscover/valid_first_interface (0.50s)
        server_test.go:190:
            	Error Trace:	server_test.go:190
            	Error:      	"0" is not greater than "0"
            	Test:       	TestServerDiscover/valid_first_interface
FAIL
FAIL	github.com/plgd-dev/go-coap/v2/udp	9.105s
ok  	github.com/plgd-dev/go-coap/v2/udp/client	1.444s
ok  	github.com/plgd-dev/go-coap/v2/udp/message	0.003s
ok  	github.com/plgd-dev/go-coap/v2/udp/message/pool	0.004s
FAIL

Here's some info about my local environment. Happy to provide additional if it's useful:

$ uname -a
Linux borg 5.18.3-arch1-1 #1 SMP PREEMPT_DYNAMIC Thu, 09 Jun 2022 16:14:10 +0000 x86_64 GNU/Linux

$ docker info
Client:
 Context:    default
 Debug Mode: false
 Plugins:
  buildx: Docker Buildx (Docker Inc., v0.8.2-docker)
  compose: Docker Compose (Docker Inc., 2.6.0)

Server:
 Containers: 3
  Running: 1
  Paused: 0
  Stopped: 2
 Images: 10
 Server Version: 20.10.17
 Storage Driver: overlay2
  Backing Filesystem: extfs
  Supports d_type: true
  Native Overlay Diff: false
  userxattr: false
 Logging Driver: json-file
 Cgroup Driver: systemd
 Cgroup Version: 2
 Plugins:
  Volume: local
  Network: bridge host ipvlan macvlan null overlay
  Log: awslogs fluentd gcplogs gelf journald json-file local logentries splunk syslog
 Swarm: inactive
 Runtimes: io.containerd.runc.v2 io.containerd.runtime.v1.linux runc
 Default Runtime: runc
 Init Binary: docker-init
 containerd version: 10c12954828e7c7c9b6e0ea9b0c02b01407d3ae1.m
 runc version:
 init version: de40ad0
 Security Options:
  seccomp
   Profile: default
  cgroupns
 Kernel Version: 5.18.3-arch1-1
 Operating System: Arch Linux
 OSType: linux
 Architecture: x86_64
 CPUs: 20
 Total Memory: 31.05GiB
 Name: borg
 ID: MXWT:TAZY:EF5B:2QKP:CAE3:TE57:GGL4:N6V3:J7BN:S4IY:VBDI:JZAC
 Docker Root Dir: /var/lib/docker
 Debug Mode: false
 Registry: https://index.docker.io/v1/
 Labels:
 Experimental: false
 Insecure Registries:
  127.0.0.0/8
 Live Restore Enabled: false

[Danielius1922]

Hi @tim-golioth, I've checked the failing test and my first idea is that you have some network interface that the test doesn't account for. I've added some diagnostic logs that prints interfaces at the start of the test, could you please checkout the branch adam/bugfix/340, rerun the tests in your environment and copy&paste here the output?

[Danielius1922]

Closing because of 3+months without reply, please reopen if this reoccurs.