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# -*- coding: utf-8 -*- #
# frozen_string_literal: true
module Support
module Lexing
def filter_by_token(target_token, text, lexer=nil)
lexer ||= subject
tokens = lexer.lex(text)
tokens.select do |(tok, _)|
same_token?(tok, target_token)
end
end
def same_token?(token, target)
if token.respond_to? :token_chain
token.token_chain.include?(Rouge::Token[target])
else
token == target
end
end
def deny_has_token(tokname, text, lexer=nil)
refute { filter_by_token(tokname, text, lexer).any? }
end
def assert_has_token(tokname, text, lexer=nil)
assert { filter_by_token(tokname, text, lexer).any? }
end
def assert_no_errors(*a)
deny_has_token('Error', *a)
end
def assert_tokens_equal(text, *expected)
if expected.first.is_a? Rouge::Lexer
lexer = expected.shift
else
lexer = subject
end
actual = lexer.lex(text).map { |token, value| [ token.qualname, value ] }
assert { expected == actual }
end
def assert_tokens_includes(text, *expected)
if expected.first.is_a? Rouge::Lexer
lexer = expected.shift
else
lexer = subject
end
actual = lexer.lex(text).map { |token, value| [ token.qualname, value ] }
expected.all? { |e| assert_includes actual, e }
end
end
end
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