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# frozen_string_literal: true
require_relative "../test_helper"
module Prism
class TunnelTest < TestCase
def test_tunnel
program = Prism.parse("foo(1) +\n bar(2, 3) +\n baz(3, 4, 5)").value
tunnel = program.tunnel(1, 4).last
assert_kind_of IntegerNode, tunnel
assert_equal 1, tunnel.value
tunnel = program.tunnel(2, 6).last
assert_kind_of IntegerNode, tunnel
assert_equal 2, tunnel.value
tunnel = program.tunnel(3, 9).last
assert_kind_of IntegerNode, tunnel
assert_equal 4, tunnel.value
tunnel = program.tunnel(3, 8)
assert_equal [ProgramNode, StatementsNode, CallNode, ArgumentsNode, CallNode, ArgumentsNode], tunnel.map(&:class)
end
end
end
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