[]]) !== 'empty_only' || batch_response_branch(['list' => ['data' => []]]) !== 'empty_only' || batch_response_branch(['list' => [['id' => 1]]]) !== 'nonempty_or_scalar_candidate' || batch_response_branch(null) !== 'empty_only') { throw new RuntimeException('Empty nested list must not count positive'); } echo "nested list branch tests: 4 green\n";