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class RegexpExtAccessTests < Test::Unit::TestCase
def test_number_of_captures
assert_equal 0, //.number_of_captures
assert_equal 1, /.(.)./.number_of_captures
assert_equal 2, /.(.).(?:.).(.)/.number_of_captures
assert_equal 3, /.((.).(?:.).(.))/.number_of_captures
end
def test_multiline
assert //m.multiline?
assert ! //.multiline?
assert ! /(?m:)/.multiline?
end
def test_optionalize
assert "a?", Regexp.optionalize("a")
assert "(?:foo)?", Regexp.optionalize("foo")
assert "", Regexp.optionalize("")
end
def test_unoptionalize
assert "a", Regexp.unoptionalize("a?")
assert "foo", Regexp.unoptionalize("(?:foo)")
assert "", Regexp.unoptionalize("")
end
end
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