Make test/cmd/a*.sh pass shellcheck

hack/.shellcheck_failures

@@ -33,9 +33,6 @@
 ./hack/update-vendor.sh
 ./hack/verify-golint.sh
 ./hack/verify-test-featuregates.sh
-./test/cmd/apply.sh
-./test/cmd/apps.sh
-./test/cmd/authorization.sh
 ./test/cmd/batch.sh
 ./test/cmd/certificate.sh
 ./test/cmd/core.sh

test/cmd/authorization.sh

@@ -59,21 +59,21 @@ run_impersonation_tests() {
 
   kube::log::status "Testing impersonation"
 
-  output_message=$(! kubectl get pods "${kube_flags_with_token[@]}" --as-group=foo 2>&1)
+  output_message=$(! kubectl get pods "${kube_flags_with_token[@]:?}" --as-group=foo 2>&1)
   kube::test::if_has_string "${output_message}" 'without impersonating a user'
 
-  if kube::test::if_supports_resource "${csr}" ; then
+  if kube::test::if_supports_resource "${csr:?}" ; then
     # --as
-    kubectl create -f hack/testdata/csr.yml "${kube_flags_with_token[@]}" --as=user1
+    kubectl create -f hack/testdata/csr.yml "${kube_flags_with_token[@]:?}" --as=user1
     kube::test::get_object_assert 'csr/foo' '{{.spec.username}}' 'user1'
     kube::test::get_object_assert 'csr/foo' '{{range .spec.groups}}{{.}}{{end}}' 'system:authenticated'
-    kubectl delete -f hack/testdata/csr.yml "${kube_flags_with_token[@]}"
+    kubectl delete -f hack/testdata/csr.yml "${kube_flags_with_token[@]:?}"
 
     # --as-group
-    kubectl create -f hack/testdata/csr.yml "${kube_flags_with_token[@]}" --as=user1 --as-group=group2 --as-group=group1 --as-group=,,,chameleon
+    kubectl create -f hack/testdata/csr.yml "${kube_flags_with_token[@]:?}" --as=user1 --as-group=group2 --as-group=group1 --as-group=,,,chameleon
     kube::test::get_object_assert 'csr/foo' '{{len .spec.groups}}' '3'
     kube::test::get_object_assert 'csr/foo' '{{range .spec.groups}}{{.}} {{end}}' 'group2 group1 ,,,chameleon '
-    kubectl delete -f hack/testdata/csr.yml "${kube_flags_with_token[@]}"
+    kubectl delete -f hack/testdata/csr.yml "${kube_flags_with_token[@]:?}"
   fi
 
   set +o nounset