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begin
require 'ripper'
require 'test/unit'
ripper_test = true
module TestRipper; end
rescue LoadError
end
class TestRipper::Sexp < Test::Unit::TestCase
def test_compile_error
assert_nil Ripper.sexp("/")
assert_nil Ripper.sexp("-")
assert_nil Ripper.sexp("+")
assert_nil Ripper.sexp("*")
assert_nil Ripper.sexp("end")
assert_nil Ripper.sexp("end 1")
assert_nil Ripper.sexp("/*")
assert_nil Ripper.sexp("/*/")
assert_nil Ripper.sexp("/+/")
end
def test_regexp_content
sexp = Ripper.sexp('//')
assert_nil search_sexp(:@tstring_content, search_sexp(:regexp_literal, sexp))
sexp = Ripper.sexp('/foo/')
assert_equal 'foo', search_sexp(:@tstring_content, search_sexp(:regexp_literal, sexp))[1]
sexp = Ripper.sexp("/foo\nbar/")
assert_equal "foo\nbar", search_sexp(:@tstring_content, search_sexp(:regexp_literal, sexp))[1]
sexp = Ripper.sexp('/(?<n>a(b|\g<n>))/')
assert_equal '(?<n>a(b|\g<n>))', search_sexp(:@tstring_content, search_sexp(:regexp_literal, sexp))[1]
end
def search_sexp(sym, sexp)
return sexp if !sexp or sexp[0] == sym
sexp.find do |e|
if Array === e and e = search_sexp(sym, e)
return e
end
end
end
end if ripper_test
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