improve checks

tests/test_helper.bash

@@ -9,6 +9,8 @@
 # shellcheck disable=SC2034
 PROJECT="$(cd "$BATS_TEST_DIRNAME/.." && pwd)"
 
+# UPSTREAM, DEPLOYED and WC are used by the .bats files
+# shellcheck disable=SC2034
 common_setup() {
   export HOME="$BATS_TEST_TMPDIR/home"
   export STUB_BIN="$BATS_TEST_TMPDIR/bin"