it should avoid breaking between text and nodes, when the node fits on a line
<p>
  aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa (-
  {{- product.price -}}
  -)
</p>

<p>
  Ipsum. Praesent scelerisque tortor a justo. Quisque consequat libero erat<em
    >product.price</em
  >ok
</p>

it should break between text and node when the group wouldn't fit on a line
<p>
  |=============
  {{- 'aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa' -}}
  =============|
</p>

it should break between text and node when the child has linebreaks
<p>
  |=============
  {{-
    'aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa'
    | append: 'aaa'
  -}}
  =============|
</p>

it should break parent and add WTC when the child breaks
<p>
  (-
  {%- if liquid -%}
    <span>aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa</span>
  {%- endif -%}
  -)
</p>