util/envlist had no test coverage. Add tests/unit/test-envlist
exercising the public envlist API and pinning down the prefix-match
hazard fixed in the previous commit:
- envlist_unsetenv("FOO") must not remove an entry named "FOOBAR";
- envlist_setenv("FOO=...") must not replace an existing "FOOBAR=..."
entry placed earlier in the list (envlist_setenv() inserts at the
head, so the first prefix match wins under the old strncmp rule).
Also cover the rest of the contract: head-insertion order observed
through envlist_to_environ(), replacement of an existing variable,
the count argument of envlist_to_environ(), and the documented EINVAL
paths (NULL inputs, setenv without '=', unsetenv with '=').
Signed-off-by: Denis V. Lunev <den@openvz.org>
Reviewed-by: Stefan Hajnoczi <stefanha@redhat.com>
Message-id: 20260520212628.479772-3-den@openvz.org
Cc: Stefan Hajnoczi <stefanha@redhat.com>
Cc: Markus Armbruster <armbru@redhat.com>
Cc: Paolo Bonzini <pbonzini@redhat.com>
Signed-off-by: Stefan Hajnoczi <stefanha@redhat.com>
05221c600a