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# encoding: utf-8
# Includes tests based on Simon Sapin's CSS parsing tests:
# https://github.com/SimonSapin/css-parsing-tests/
require_relative 'support/common'
describe 'Crass::Parser' do
make_my_diffs_pretty!
parallelize_me!
describe '#parse_properties' do
def parse(*args)
CP.parse_properties(*args)
end
it 'should return an empty tree when given an empty string' do
assert_equal([], parse(""))
end
# Note: The next two tests verify augmented behavior that isn't defined in
# CSS Syntax Module Level 3.
it 'should include semicolon and whitespace tokens' do
assert_tokens(";; /**/ ; ;", parse(";; /**/ ; ;"))
end
it 'should include semicolon, whitespace, and comment tokens when :preserve_comments == true' do
tree = parse(";; /**/ ; ;", :preserve_comments => true)
assert_tokens(";; /**/ ; ;", tree, 0, :preserve_comments => true)
end
it 'should parse at-rules even though they may be invalid in the given context' do
tree = parse("@import 'foo.css'; a:b; @import 'bar.css'")
assert_equal([
{:node=>:at_rule,
:name=>"import",
:prelude=>
[{:node=>:whitespace, :pos=>7, :raw=>" "},
{:node=>:string, :pos=>8, :raw=>"'foo.css'", :value=>"foo.css"}],
:tokens=>
[{:node=>:at_keyword, :pos=>0, :raw=>"@import", :value=>"import"},
{:node=>:whitespace, :pos=>7, :raw=>" "},
{:node=>:string, :pos=>8, :raw=>"'foo.css'", :value=>"foo.css"},
{:node=>:semicolon, :pos=>17, :raw=>";"}]},
{:node=>:whitespace, :pos=>18, :raw=>" "},
{:node=>:property,
:name=>"a",
:value=>"b",
:children=>[{:node=>:ident, :pos=>21, :raw=>"b", :value=>"b"}],
:important=>false,
:tokens=>
[{:node=>:ident, :pos=>19, :raw=>"a", :value=>"a"},
{:node=>:colon, :pos=>20, :raw=>":"},
{:node=>:ident, :pos=>21, :raw=>"b", :value=>"b"}]},
{:node=>:semicolon, :pos=>22, :raw=>";"},
{:node=>:whitespace, :pos=>23, :raw=>" "},
{:node=>:at_rule,
:name=>"import",
:prelude=>
[{:node=>:whitespace, :pos=>31, :raw=>" "},
{:node=>:string, :pos=>32, :raw=>"'bar.css'", :value=>"bar.css"}],
:tokens=>
[{:node=>:at_keyword, :pos=>24, :raw=>"@import", :value=>"import"},
{:node=>:whitespace, :pos=>31, :raw=>" "},
{:node=>:string, :pos=>32, :raw=>"'bar.css'", :value=>"bar.css"}]}
], tree)
end
it 'should parse at-rules with a {} simple block immediately following the prelude' do
tree = parse(%[
@page :right {
@top-center { content: "Preliminary edition" }
@bottom-center { content: counter(page) }
}
].strip)
tree = parse(tree.first[:block])
assert_equal([
{:node=>:whitespace, :pos=>14, :raw=>"\n "},
{:node=>:at_rule,
:name=>"top-center",
:prelude=>[{:node=>:whitespace, :pos=>36, :raw=>" "}],
:block=>
[{:node=>:whitespace, :pos=>38, :raw=>" "},
{:node=>:ident, :pos=>39, :raw=>"content", :value=>"content"},
{:node=>:colon, :pos=>46, :raw=>":"},
{:node=>:whitespace, :pos=>47, :raw=>" "},
{:node=>:string,
:pos=>48,
:raw=>"\"Preliminary edition\"",
:value=>"Preliminary edition"},
{:node=>:whitespace, :pos=>69, :raw=>" "}],
:tokens=>
[{:node=>:at_keyword, :pos=>25, :raw=>"@top-center", :value=>"top-center"},
{:node=>:whitespace, :pos=>36, :raw=>" "},
{:node=>:simple_block,
:start=>"{",
:end=>"}",
:value=>
[{:node=>:whitespace, :pos=>38, :raw=>" "},
{:node=>:ident, :pos=>39, :raw=>"content", :value=>"content"},
{:node=>:colon, :pos=>46, :raw=>":"},
{:node=>:whitespace, :pos=>47, :raw=>" "},
{:node=>:string,
:pos=>48,
:raw=>"\"Preliminary edition\"",
:value=>"Preliminary edition"},
{:node=>:whitespace, :pos=>69, :raw=>" "}],
:tokens=>
[{:node=>:"{", :pos=>37, :raw=>"{"},
{:node=>:whitespace, :pos=>38, :raw=>" "},
{:node=>:ident, :pos=>39, :raw=>"content", :value=>"content"},
{:node=>:colon, :pos=>46, :raw=>":"},
{:node=>:whitespace, :pos=>47, :raw=>" "},
{:node=>:string,
:pos=>48,
:raw=>"\"Preliminary edition\"",
:value=>"Preliminary edition"},
{:node=>:whitespace, :pos=>69, :raw=>" "},
{:node=>:"}", :pos=>70, :raw=>"}"}]}]},
{:node=>:whitespace, :pos=>71, :raw=>"\n "},
{:node=>:at_rule,
:name=>"bottom-center",
:prelude=>[{:node=>:whitespace, :pos=>96, :raw=>" "}],
:block=>
[{:node=>:whitespace, :pos=>98, :raw=>" "},
{:node=>:ident, :pos=>99, :raw=>"content", :value=>"content"},
{:node=>:colon, :pos=>106, :raw=>":"},
{:node=>:whitespace, :pos=>107, :raw=>" "},
{:node=>:function,
:name=>"counter",
:value=>[{:node=>:ident, :pos=>116, :raw=>"page", :value=>"page"}],
:tokens=>
[{:node=>:function, :pos=>108, :raw=>"counter(", :value=>"counter"},
{:node=>:ident, :pos=>116, :raw=>"page", :value=>"page"},
{:node=>:")", :pos=>120, :raw=>")"}]},
{:node=>:whitespace, :pos=>121, :raw=>" "}],
:tokens=>
[{:node=>:at_keyword,
:pos=>82,
:raw=>"@bottom-center",
:value=>"bottom-center"},
{:node=>:whitespace, :pos=>96, :raw=>" "},
{:node=>:simple_block,
:start=>"{",
:end=>"}",
:value=>
[{:node=>:whitespace, :pos=>98, :raw=>" "},
{:node=>:ident, :pos=>99, :raw=>"content", :value=>"content"},
{:node=>:colon, :pos=>106, :raw=>":"},
{:node=>:whitespace, :pos=>107, :raw=>" "},
{:node=>:function,
:name=>"counter",
:value=>[{:node=>:ident, :pos=>116, :raw=>"page", :value=>"page"}],
:tokens=>
[{:node=>:function, :pos=>108, :raw=>"counter(", :value=>"counter"},
{:node=>:ident, :pos=>116, :raw=>"page", :value=>"page"},
{:node=>:")", :pos=>120, :raw=>")"}]},
{:node=>:whitespace, :pos=>121, :raw=>" "}],
:tokens=>
[{:node=>:"{", :pos=>97, :raw=>"{"},
{:node=>:whitespace, :pos=>98, :raw=>" "},
{:node=>:ident, :pos=>99, :raw=>"content", :value=>"content"},
{:node=>:colon, :pos=>106, :raw=>":"},
{:node=>:whitespace, :pos=>107, :raw=>" "},
{:node=>:function, :pos=>108, :raw=>"counter(", :value=>"counter"},
{:node=>:ident, :pos=>116, :raw=>"page", :value=>"page"},
{:node=>:")", :pos=>120, :raw=>")"},
{:node=>:whitespace, :pos=>121, :raw=>" "},
{:node=>:"}", :pos=>122, :raw=>"}"}]}]},
{:node=>:whitespace, :pos=>123, :raw=>"\n "}
], tree)
end
it 'should parse values containing functions' do
tree = parse("content: attr(data-foo) \" \";")
assert_equal([
{:node=>:property,
:name=>"content",
:value=>"attr(data-foo) \" \"",
:children=>
[{:node=>:whitespace, :pos=>8, :raw=>" "},
{:node=>:function,
:name=>"attr",
:value=>[{:node=>:ident, :pos=>14, :raw=>"data-foo", :value=>"data-foo"}],
:tokens=>
[{:node=>:function, :pos=>9, :raw=>"attr(", :value=>"attr"},
{:node=>:ident, :pos=>14, :raw=>"data-foo", :value=>"data-foo"},
{:node=>:")", :pos=>22, :raw=>")"}]},
{:node=>:whitespace, :pos=>23, :raw=>" "},
{:node=>:string, :pos=>24, :raw=>"\" \"", :value=>" "}],
:important=>false,
:tokens=>
[{:node=>:ident, :pos=>0, :raw=>"content", :value=>"content"},
{:node=>:colon, :pos=>7, :raw=>":"},
{:node=>:whitespace, :pos=>8, :raw=>" "},
{:node=>:function,
:name=>"attr",
:value=>[{:node=>:ident, :pos=>14, :raw=>"data-foo", :value=>"data-foo"}],
:tokens=>
[{:node=>:function, :pos=>9, :raw=>"attr(", :value=>"attr"},
{:node=>:ident, :pos=>14, :raw=>"data-foo", :value=>"data-foo"},
{:node=>:")", :pos=>22, :raw=>")"}]},
{:node=>:whitespace, :pos=>23, :raw=>" "},
{:node=>:string, :pos=>24, :raw=>"\" \"", :value=>" "}]},
{:node=>:semicolon, :pos=>27, :raw=>";"}
], tree)
end
it 'should parse values containing nested functions' do
tree = parse("width: expression(alert(1));")
assert_equal([
{:node=>:property,
:name=>"width",
:value=>"expression(alert(1))",
:children=>
[{:node=>:whitespace, :pos=>6, :raw=>" "},
{:node=>:function,
:name=>"expression",
:value=>
[{:node=>:function,
:name=>"alert",
:value=>
[{:node=>:number,
:pos=>24,
:raw=>"1",
:repr=>"1",
:type=>:integer,
:value=>1}],
:tokens=>
[{:node=>:function, :pos=>18, :raw=>"alert(", :value=>"alert"},
{:node=>:number,
:pos=>24,
:raw=>"1",
:repr=>"1",
:type=>:integer,
:value=>1},
{:node=>:")", :pos=>25, :raw=>")"}]}],
:tokens=>
[{:node=>:function, :pos=>7, :raw=>"expression(", :value=>"expression"},
{:node=>:function, :pos=>18, :raw=>"alert(", :value=>"alert"},
{:node=>:number,
:pos=>24,
:raw=>"1",
:repr=>"1",
:type=>:integer,
:value=>1},
{:node=>:")", :pos=>25, :raw=>")"},
{:node=>:")", :pos=>26, :raw=>")"}]}],
:important=>false,
:tokens=>
[{:node=>:ident, :pos=>0, :raw=>"width", :value=>"width"},
{:node=>:colon, :pos=>5, :raw=>":"},
{:node=>:whitespace, :pos=>6, :raw=>" "},
{:node=>:function,
:name=>"expression",
:value=>
[{:node=>:function,
:name=>"alert",
:value=>
[{:node=>:number,
:pos=>24,
:raw=>"1",
:repr=>"1",
:type=>:integer,
:value=>1}],
:tokens=>
[{:node=>:function, :pos=>18, :raw=>"alert(", :value=>"alert"},
{:node=>:number,
:pos=>24,
:raw=>"1",
:repr=>"1",
:type=>:integer,
:value=>1},
{:node=>:")", :pos=>25, :raw=>")"}]}],
:tokens=>
[{:node=>:function, :pos=>7, :raw=>"expression(", :value=>"expression"},
{:node=>:function, :pos=>18, :raw=>"alert(", :value=>"alert"},
{:node=>:number,
:pos=>24,
:raw=>"1",
:repr=>"1",
:type=>:integer,
:value=>1},
{:node=>:")", :pos=>25, :raw=>")"},
{:node=>:")", :pos=>26, :raw=>")"}]}]},
{:node=>:semicolon, :pos=>27, :raw=>";"}
], tree)
end
it 'should not choke on a missing property value' do
tree = parse("font-family:")
assert_equal([
{:node=>:property,
:name=>"font-family",
:value=>"",
:children=>[],
:important=>false,
:tokens=>
[{:node=>:ident, :pos=>0, :raw=>"font-family", :value=>"font-family"},
{:node=>:colon, :pos=>11, :raw=>":"}]}
], tree)
end
end
end
|
