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optionally remove empty nodes from AST

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This commit is contained in:
Michael Go
2025-01-07 14:34:49 -04:00
parent 879ec3e288
commit db64a0f0c2
5 changed files with 117 additions and 28 deletions
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test/unit/block_unit_test.rb
+97 -2
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@@ -49,12 +49,107 @@ class BlockUnitTest < Minitest::Test
def test_with_block
template = Liquid::Template.parse(" {% comment %} {% endcomment %} ")
assert_equal([String, String], block_types(template.root.nodelist))
assert_equal(2, template.root.nodelist.size)
assert_equal([String, Comment, String], block_types(template.root.nodelist))
assert_equal(3, template.root.nodelist.size)
end
def test_remove_empty_for_blocks_with_optimization_option
source = <<~LIQUID.chomp
{% for i in (1..1000000) %}
{% endfor %}
LIQUID
assert_root_nodelist_size(source, 0, omit_blank_nodes: true)
source = <<~LIQUID.chomp
{% for i in (1..1000000) %}
{% else %}
{% endfor %}
LIQUID
assert_root_nodelist_size(source, 0, omit_blank_nodes: true)
source = <<~LIQUID.chomp
{% for i in list %}
i
{% endfor %}
LIQUID
assert_root_nodelist_size(source, 1, omit_blank_nodes: true)
source = <<~LIQUID.chomp
{% for i in list %}
{% else %}
1
{% endfor %}
LIQUID
assert_root_nodelist_size(source, 1, omit_blank_nodes: true)
end
def test_remove_comment_nodes_with_optimization_option
source = <<~LIQUID.chomp
{% comment %}
{% if true %}
{% endif %}
{% endcomment %}
LIQUID
assert_root_nodelist_size(source, 0, omit_blank_nodes: true)
source = <<~LIQUID.chomp
{% liquid
comment
if true
endif
endcomment
%}
LIQUID
assert_root_nodelist_size(source, 0, omit_blank_nodes: true)
end
def test_remove_if_nodes_with_optimization_option
source = <<~LIQUID.chomp
{% if true %}
{% endif %}
LIQUID
assert_root_nodelist_size(source, 0, omit_blank_nodes: true)
source = <<~LIQUID.chomp
{% unless true %}
{% endunless %}
LIQUID
assert_root_nodelist_size(source, 0, omit_blank_nodes: true)
source = <<~LIQUID.chomp
{% if false %}
{% else %}
{% endif %}
LIQUID
assert_root_nodelist_size(source, 0, omit_blank_nodes: true)
source = <<~LIQUID.chomp
{% if false %}
{% else %}
Hello!
{% endif %}
LIQUID
assert_root_nodelist_size(source, 1, omit_blank_nodes: true)
end
private
def assert_root_nodelist_size(source, expected_size, parse_options = {})
template = Liquid::Template.parse(source, parse_options)
assert_equal(expected_size, template.root.nodelist.size)
end
def block_types(nodelist)
nodelist.collect(&:class)
end