render タグのフォーマット規則

It should never break a name
printWidth: 1
{% render block %}
{%- render 'snippet' -%}

It should not break aliases if there's no variable (obscure syntax)
printWidth: 1
{% render 'foo/bar' as foo %}

It should not break on variable expression alone
printWidth: 1
{% render 'foo' with foo %}

It should break on variable expression + alias
printWidth: 1
{% render 'foo'
  with foo as bar
%}

It should break on alias + args
printWidth: 1
{% render 'foo/bar' as bar,
  key1: val1,
  key2: (0..1)
%}

It should break on variable + args (after variable)
printWidth: 1
{% render 'foo/bar' with 'string',
  key1: val1,
  key2: (0..1)
%}

It should break on variable + alias + args (before variable)
printWidth: 1
{% render 'foo/bar'
  with 'string' as bar,
  key1: val1,
  key2: (0..1)
%}

It should break on named args
printWidth: 1
{% render 'foo/bar',
  key1: val1,
  key2: (0..1)
%}

It should not require commas (as per syntax) but add them when pretty printed
{% render 'foo/bar', key1: val1, key2: (0..1) %}

It should not require spaces (as per syntax) but add them when pretty printed
{% render 'foo/bar', key1: val1, key2: (0..1) %}

It should strip trailing commas by default
{% render 'foo' %}
{% render 'foo', product: product %}
{% render 'foo' with foo as bar %}