Refer to the stderr manpage:
$ man 3 stderr
*Note that mixing use of FILEs and raw file descriptors can produce unexpected results and should generally be avoided.*
And actually, we noticed that the warning() will output the message to
stdout instead of stderr sometimes.
lizj@FNSTPC:~/workspace/k8s/helm$ while true; do timeout 1m go test -count=1 -run TestCheckPerms ./cmd/helm -v 2>/dev/null; done
=== RUN TestCheckPerms
--- PASS: TestCheckPerms (0.00s)
PASS
ok helm.sh/helm/v3/cmd/helm 0.028s
=== RUN TestCheckPerms
--- PASS: TestCheckPerms (0.00s)
PASS
ok helm.sh/helm/v3/cmd/helm 0.027s
=== RUN TestCheckPerms
--- PASS: TestCheckPerms (0.00s)
PASS
ok helm.sh/helm/v3/cmd/helm 0.028s
=== RUN TestCheckPerms
--- PASS: TestCheckPerms (0.00s)
PASS
ok helm.sh/helm/v3/cmd/helm 0.029s
=== RUN TestCheckPerms
--- PASS: TestCheckPerms (0.00s)
PASS
ok helm.sh/helm/v3/cmd/helm 0.029s
=== RUN TestCheckPerms
--- PASS: TestCheckPerms (0.00s)
PASS
ok helm.sh/helm/v3/cmd/helm 0.028s
=== RUN TestCheckPerms
--- PASS: TestCheckPerms (0.00s)
PASS
ok helm.sh/helm/v3/cmd/helm 0.030s
=== RUN TestCheckPerms
WARNING: Kubernetes configuration file is group-readable. This is insecure. Location: /tmp/helmtest093620773/testconfig
=== RUN TestCheckPerms
WARNING: Kubernetes configuration file is group-readable. This is insecure. Location: /tmp/helmtest083469215/testconfig
=== RUN TestCheckPerms
WARNING: Kubernetes configuration file is group-readable. This is insecure. Location: /tmp/helmtest101343249/testconfig
=== RUN TestCheckPerms
--- PASS: TestCheckPerms (0.00s)
PASS
ok helm.sh/helm/v3/cmd/helm 0.032s
=== RUN TestCheckPerms
--- PASS: TestCheckPerms (0.00s)
PASS
ok helm.sh/helm/v3/cmd/helm 0.040s
=== RUN TestCheckPerms
--- PASS: TestCheckPerms (0.00s)
PASS
ok helm.sh/helm/v3/cmd/helm 0.031s
=== RUN TestCheckPerms
WARNING: Kubernetes configuration file is group-readable. This is insecure. Location: /tmp/helmtest706352639/testconfig
Signed-off-by: Li Zhijian <lizhijian@cn.fujitsu.com>
Signed-off-by: Lu Fengqi <lufq.fnst@cn.fujitsu.com>