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Contents
require File.expand_path("../../helpers", __FILE__)
class ScannerQuantifiers < Test::Unit::TestCase
tests = {
'a?' => [:quantifier, :zero_or_one, '?'],
'a??' => [:quantifier, :zero_or_one_reluctant, '??'],
'a?+' => [:quantifier, :zero_or_one_possessive, '?+'],
'a*' => [:quantifier, :zero_or_more, '*'],
'a*?' => [:quantifier, :zero_or_more_reluctant, '*?'],
'a*+' => [:quantifier, :zero_or_more_possessive, '*+'],
'a+' => [:quantifier, :one_or_more, '+'],
'a+?' => [:quantifier, :one_or_more_reluctant, '+?'],
'a++' => [:quantifier, :one_or_more_possessive, '++'],
'a{2}' => [:quantifier, :interval, '{2}'],
'a{2,}' => [:quantifier, :interval, '{2,}'],
'a{,2}' => [:quantifier, :interval, '{,2}'],
'a{2,4}' => [:quantifier, :interval, '{2,4}'],
}
tests.each_with_index do |(pattern, (type, token, text)), count|
name = (token == :interval ? "interval_#{count}" : token)
define_method "test_scan_#{type}_#{name}" do
tokens = RS.scan(pattern)
result = tokens.last
assert_equal type, result[0]
assert_equal token, result[1]
assert_equal text, result[2]
end
end
end
Version data entries
25 entries across 25 versions & 2 rubygems