It's been a while since I last looked at these; some cruft
has crept in, generating noise and hence unreadable test
results. Clean it up:
* remove pushd/popd in one subtest, replace with 'tar -C'.
(Also remove confusing quotation marks). This removes
spurious directory names from output.
* in like(), show only first line of actual output.
Some commands ('tree', 'generate kube') produce
voluminous multi-line output, which is super useless
and distracting when reading a test run.
* Recognize that some queries will not generate output,
e.g. HEAD requests and some POSTs. Deal with that.
This fixes "curl.result.out: no such file" and "parse
error" warnings.
* In cleanup, 'podman rm -a' and 'rmi -af'; this gets
rid of errors when deleting $WORKDIR. (EBUSY error
when root, EPERM when rootless).
And, the original reason for poking in here: refactor the
wait-for-port part of start_server() into its own helper
function, so we can use it when starting a local registry
in 12-imagesMore. (Ref: #9270)
Signed-off-by: Ed Santiago <santiago@redhat.com>
