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44 lines
1.3 KiB
44 lines
1.3 KiB
require "minitest"
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module Lox
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class Test < Minitest::Test
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LOX_BIN = File.expand_path("../bin/lox", __dir__)
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def assert_lox(path)
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src = File.read(path)
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# https://github.com/munificent/craftinginterpreters/blob/master/tool/bin/test.dart#L12-L18
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expected_out = src.scan(/(?<=\/\/ expect: )(?~\n)/).join("\n")
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expected_err = src[/(?<=\/\/ expect runtime error: )(?~\n)/]
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out, err, _status = Open3.capture3(LOX_BIN, path)
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assert_equal expected_out, out
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assert_equal expected_err, err.lines(chomp: true)[0]
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end
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end
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if ENV.has_key?("LOX_TEST")
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book_src = File.expand_path(ENV.fetch("CRAFTING_INTERPRETERS_SRC"))
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Dir.chdir(book_src) do
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lox_tests = Dir["./test/**/*.lox"]
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.group_by {|path| path.rpartition(?/).first.sub(/\.\/test\/?/, "") }
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lox_tests.each do |dir, paths|
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klass = Class.new(Test) do
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paths.each do |path|
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name = File.basename(path, ".lox")
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define_method("test_#{name}") do
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assert_lox File.expand_path(path, book_src)
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end
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end
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end
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suite = dir.split(?/).map(&:capitalize).join
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suite = "Root" if suite.empty?
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Object.const_set("Test#{suite}", klass)
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end
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end
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end
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end
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