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23 lines
524 B
23 lines
524 B
2 years ago
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require_relative "../test_helper"
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require "lox/ast_printer"
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require "lox/expr"
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require "lox/token"
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class TestAstPrinter < Lox::Test
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def test_ast_printer
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expr = Lox::Expr::Binary.new(
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Lox::Expr::Unary.new(
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Lox::Token.new(:MINUS, ?-, nil, 1),
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Lox::Expr::Literal.new(123),
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),
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Lox::Token.new(:STAR, ?*, nil, 1),
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Lox::Expr::Grouping.new(
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Lox::Expr::Literal.new(45.67),
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),
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)
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assert_equal "(* (- 123) (group 45.67))", Lox::AstPrinter.new.print(expr)
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end
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end
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