Error when running tests locally wait: -n: invalid option

[JimBugwadia]

I am seeing this error when running the test script locally:

./start.sh tests/kyverno-pss.js 1 1
Running tests/kyverno-pss.js...
installing PSS policies
"kyverno" already exists with the same configuration, skipping
NAME: kyverno-policies
LAST DEPLOYED: Sat Apr 20 17:59:03 2024
NAMESPACE: kyverno-policies
STATUS: deployed
REVISION: 1
TEST SUITE: None
NOTES:
Thank you for installing kyverno-policies 3.1.4 😀

We have installed the "restricted" profile of Pod Security Standards and set them in Enforce mode.

Visit https://kyverno.io/policies/ to find more sample policies.
clusterpolicy.kyverno.io/disallow-capabilities condition met
clusterpolicy.kyverno.io/disallow-capabilities-strict condition met
clusterpolicy.kyverno.io/disallow-host-namespaces condition met
clusterpolicy.kyverno.io/disallow-host-path condition met
clusterpolicy.kyverno.io/disallow-host-ports condition met
clusterpolicy.kyverno.io/disallow-host-process condition met
clusterpolicy.kyverno.io/disallow-privilege-escalation condition met
clusterpolicy.kyverno.io/disallow-privileged-containers condition met
clusterpolicy.kyverno.io/disallow-proc-mount condition met
clusterpolicy.kyverno.io/disallow-selinux condition met
clusterpolicy.kyverno.io/require-run-as-non-root-user condition met
clusterpolicy.kyverno.io/require-run-as-nonroot condition met
clusterpolicy.kyverno.io/restrict-apparmor-profiles condition met
clusterpolicy.kyverno.io/restrict-seccomp condition met
clusterpolicy.kyverno.io/restrict-seccomp-strict condition met
clusterpolicy.kyverno.io/restrict-sysctls condition met
clusterpolicy.kyverno.io/restrict-volume-types condition met
Deploying namespace...
namespace/load-tests created
Deploying RBAC...
serviceaccount/load-test created
clusterrolebinding.rbac.authorization.k8s.io/load-test created
secret/load-test-token created
Creating configmap...
configmap/load-test created
Deploying k6 job...
job.batch/load-test created
Waiting for the job to finish...
./start.sh: line 56: wait: -n: invalid option
wait: usage: wait [n]

[vishal-chdhry]

It works with bash 5.2 (only one homebrew has), It fails for bash 3. I haven't tested with bash 4.
We should add this to the script.

if [ "${BASH_VERSINFO:-0}" -lt 4 ]; then
 echo "start.sh needs bash version >=4"
 exit 1
fi

We can decide if it should be 4 or 5 based on which is the minimum version that works with the script.