зеркало из https://github.com/github/ruby.git
142 строки
3.3 KiB
Ruby
142 строки
3.3 KiB
Ruby
# frozen_string_literal: true
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begin
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require 'ripper'
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require 'test/unit'
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module TestRipper; end
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rescue LoadError
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end
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class TestRipper::Lexer < Test::Unit::TestCase
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def test_nested_dedent_heredoc
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bug = '[ruby-core:80977] [Bug #13536]'
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str = <<~'E'
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<<~"D"
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#{
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<<~"B"
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this must be a valid ruby
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B
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}
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D
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E
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assert_equal(str, Ripper.tokenize(str).join(""), bug)
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str = <<~'E'
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<<~"D"
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#{
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<<~"B"
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this must be a valid ruby
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B
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}
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D
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E
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assert_equal(str, Ripper.tokenize(str).join(""), bug)
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end
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def test_embedded_expr_in_heredoc
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src = <<~'E'
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<<~B
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#{1}
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B
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E
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expect = %I[
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on_heredoc_beg
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on_nl
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on_ignored_sp
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on_embexpr_beg
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on_int
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on_embexpr_end
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on_tstring_content
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on_heredoc_end
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]
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assert_equal expect, Ripper.lex(src).map {|e| e[1]}
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end
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def test_space_after_expr_in_heredoc
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src = <<~'E'
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<<~B
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#{1} a
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B
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E
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expect = %I[
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on_heredoc_beg
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on_nl
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on_ignored_sp
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on_embexpr_beg
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on_int
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on_embexpr_end
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on_tstring_content
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on_heredoc_end
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]
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assert_equal expect, Ripper.lex(src).map {|e| e[1]}
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end
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def test_expr_at_beginning_in_heredoc
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src = <<~'E'
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<<~B
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a
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#{1}
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B
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E
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expect = %I[
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on_heredoc_beg
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on_nl
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on_tstring_content
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on_embexpr_beg
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on_int
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on_embexpr_end
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on_tstring_content
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on_heredoc_end
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]
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assert_equal expect, Ripper.lex(src).map {|e| e[1]}
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end
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def test_slice
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assert_equal "string\#{nil}\n",
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Ripper.slice(%(<<HERE\nstring\#{nil}\nHERE), "heredoc_beg .*? nl $(.*?) heredoc_end", 1)
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end
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def state(name)
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Ripper::Lexer::State.new(Ripper.const_get(name))
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end
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def test_state_after_ivar
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assert_equal [[1,0],:on_ivar,"@a",state(:EXPR_END)], Ripper.lex("@a").last
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assert_equal [[1,1],:on_ivar,"@a",state(:EXPR_ENDFN)], Ripper.lex(":@a").last
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assert_equal [[1,1],:on_int,"1",state(:EXPR_END)], Ripper.lex("@1").last
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assert_equal [[1,2],:on_int,"1",state(:EXPR_END)], Ripper.lex(":@1").last
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end
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def test_state_after_cvar
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assert_equal [[1,0],:on_cvar,"@@a",state(:EXPR_END)], Ripper.lex("@@a").last
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assert_equal [[1,1],:on_cvar,"@@a",state(:EXPR_ENDFN)], Ripper.lex(":@@a").last
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assert_equal [[1,2],:on_int,"1",state(:EXPR_END)], Ripper.lex("@@1").last
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assert_equal [[1,3],:on_int,"1",state(:EXPR_END)], Ripper.lex(":@@1").last
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end
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def test_token_aftr_error_heredoc
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code = "<<A.upcase\n"
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result = Ripper::Lexer.new(code).scan
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message = proc {result.pretty_inspect}
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expected = [
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[[1, 0], :on_heredoc_beg, "<<A", state(:EXPR_BEG)],
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[[1, 2], :compile_error, "A", state(:EXPR_BEG), "can't find string \"A\" anywhere before EOF"],
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[[1, 3], :on_period, ".", state(:EXPR_DOT)],
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[[1, 4], :on_ident, "upcase", state(:EXPR_ARG)],
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[[1, 10], :on_nl, "\n", state(:EXPR_BEG)],
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]
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pos = 0
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expected.each_with_index do |ex, i|
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s = result[i]
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assert_equal ex, s.to_a, message
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if pos > s.pos[1]
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assert_equal pos, s.pos[1] + s.tok.bytesize, message
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else
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assert_equal pos, s.pos[1], message
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pos += s.tok.bytesize
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end
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end
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assert_equal pos, code.bytesize
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assert_equal expected.size, result.size
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end
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end
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