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# -*- coding: utf-8 -*-
require "helper"
module Nokogiri
module CSS
class Tokenizer
alias :scan :scan_setup
end
end
end
module Nokogiri
module CSS
class TestTokenizer < Nokogiri::TestCase
def setup
super
@scanner = Nokogiri::CSS::Tokenizer.new
end
def test_has
@scanner.scan("a:has(b)")
assert_tokens(
[[:IDENT, "a"], [":", ":"], [:HAS, "has("], [:IDENT, "b"], [:RPAREN, ")"]],
@scanner)
end
def test_unicode
@scanner.scan("a日本語")
assert_tokens([[:IDENT, 'a日本語']], @scanner)
end
def test_tokenize_bad_single_quote
@scanner.scan("'")
assert_tokens([["'", "'"]], @scanner)
end
def test_not_equal
@scanner.scan("h1[a!='Tender Lovemaking']")
assert_tokens([ [:IDENT, 'h1'],
[:LSQUARE, '['],
[:IDENT, 'a'],
[:NOT_EQUAL, '!='],
[:STRING, "'Tender Lovemaking'"],
[:RSQUARE, ']'],
], @scanner)
end
def test_negation
@scanner.scan("p:not(.a)")
assert_tokens([ [:IDENT, 'p'],
[:NOT, ':not('],
['.', '.'],
[:IDENT, 'a'],
[:RPAREN, ')'],
], @scanner)
end
def test_function
@scanner.scan("script comment()")
assert_tokens([ [:IDENT, 'script'],
[:S, ' '],
[:FUNCTION, 'comment('],
[:RPAREN, ')'],
], @scanner)
end
def test_preceding_selector
@scanner.scan("E ~ F")
assert_tokens([ [:IDENT, 'E'],
[:TILDE, ' ~ '],
[:IDENT, 'F'],
], @scanner)
end
def test_scan_attribute_string
@scanner.scan("h1[a='Tender Lovemaking']")
assert_tokens([ [:IDENT, 'h1'],
[:LSQUARE, '['],
[:IDENT, 'a'],
[:EQUAL, '='],
[:STRING, "'Tender Lovemaking'"],
[:RSQUARE, ']'],
], @scanner)
@scanner.scan('h1[a="Tender Lovemaking"]')
assert_tokens([ [:IDENT, 'h1'],
[:LSQUARE, '['],
[:IDENT, 'a'],
[:EQUAL, '='],
[:STRING, '"Tender Lovemaking"'],
[:RSQUARE, ']'],
], @scanner)
end
def test_scan_id
@scanner.scan('#foo')
assert_tokens([ [:HASH, '#foo'] ], @scanner)
end
def test_scan_pseudo
@scanner.scan('a:visited')
assert_tokens([ [:IDENT, 'a'],
[':', ':'],
[:IDENT, 'visited']
], @scanner)
end
def test_scan_star
@scanner.scan('*')
assert_tokens([ ['*', '*'], ], @scanner)
end
def test_scan_class
@scanner.scan('x.awesome')
assert_tokens([ [:IDENT, 'x'],
['.', '.'],
[:IDENT, 'awesome'],
], @scanner)
end
def test_scan_greater
@scanner.scan('x > y')
assert_tokens([ [:IDENT, 'x'],
[:GREATER, ' > '],
[:IDENT, 'y']
], @scanner)
end
def test_scan_slash
@scanner.scan('x/y')
assert_tokens([ [:IDENT, 'x'],
[:SLASH, '/'],
[:IDENT, 'y']
], @scanner)
end
def test_scan_doubleslash
@scanner.scan('x//y')
assert_tokens([ [:IDENT, 'x'],
[:DOUBLESLASH, '//'],
[:IDENT, 'y']
], @scanner)
end
def test_scan_function_selector
@scanner.scan('x:eq(0)')
assert_tokens([ [:IDENT, 'x'],
[':', ':'],
[:FUNCTION, 'eq('],
[:NUMBER, "0"],
[:RPAREN, ')'],
], @scanner)
end
def test_scan_nth
@scanner.scan('x:nth-child(5n+3)')
assert_tokens([ [:IDENT, 'x'],
[':', ':'],
[:FUNCTION, 'nth-child('],
[:NUMBER, '5'],
[:IDENT, 'n'],
[:PLUS, '+'],
[:NUMBER, '3'],
[:RPAREN, ')'],
], @scanner)
@scanner.scan('x:nth-child(-1n+3)')
assert_tokens([ [:IDENT, 'x'],
[':', ':'],
[:FUNCTION, 'nth-child('],
[:NUMBER, '-1'],
[:IDENT, 'n'],
[:PLUS, '+'],
[:NUMBER, '3'],
[:RPAREN, ')'],
], @scanner)
@scanner.scan('x:nth-child(-n+3)')
assert_tokens([ [:IDENT, 'x'],
[':', ':'],
[:FUNCTION, 'nth-child('],
[:IDENT, '-n'],
[:PLUS, '+'],
[:NUMBER, '3'],
[:RPAREN, ')'],
], @scanner)
end
def test_significant_space
@scanner.scan('x :first-child [a] [b]')
assert_tokens([ [:IDENT, 'x'],
[:S, ' '],
[':', ':'],
[:IDENT, 'first-child'],
[:S, ' '],
[:LSQUARE, '['],
[:IDENT, 'a'],
[:RSQUARE, ']'],
[:S, ' '],
[:LSQUARE, '['],
[:IDENT, 'b'],
[:RSQUARE, ']'],
], @scanner)
end
def assert_tokens(tokens, scanner)
toks = []
while tok = @scanner.next_token
toks << tok
end
assert_equal(tokens, toks)
end
end
end
end
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