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test_rdoc_ruby_lex.rb
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test_rdoc_ruby_lex.rb
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# coding: UTF-8
require 'rdoc/test_case'
class TestRDocRubyLex < RDoc::TestCase
def setup
@TK = RDoc::RubyToken
end
def mu_pp obj
s = ''
s = PP.pp obj, s
s = s.force_encoding(Encoding.default_external) if defined? Encoding
s.chomp
end
def test_class_tokenize
tokens = RDoc::RubyLex.tokenize "def x() end", nil
expected = [
@TK::TkDEF .new( 0, 1, 0, "def"),
@TK::TkSPACE .new( 3, 1, 3, " "),
@TK::TkIDENTIFIER.new( 4, 1, 4, "x"),
@TK::TkLPAREN .new( 5, 1, 5, "("),
@TK::TkRPAREN .new( 6, 1, 6, ")"),
@TK::TkSPACE .new( 7, 1, 7, " "),
@TK::TkEND .new( 8, 1, 8, "end"),
@TK::TkNL .new(11, 1, 11, "\n"),
]
assert_equal expected, tokens
end
def test_class_tokenize___END__
tokens = RDoc::RubyLex.tokenize '__END__', nil
expected = [
@TK::TkEND_OF_SCRIPT.new(0, 1, 0, '__END__'),
@TK::TkNL .new(7, 1, 7, "\n"),
]
assert_equal expected, tokens
end
def test_class_tokenize_character_literal
tokens = RDoc::RubyLex.tokenize "?\\", nil
expected = [
@TK::TkSTRING.new( 0, 1, 0, "\\"),
@TK::TkNL .new( 2, 1, 2, "\n"),
]
assert_equal expected, tokens
end
def test_class_tokenize_def_heredoc
tokens = RDoc::RubyLex.tokenize <<-'RUBY', nil
def x
<<E
Line 1
Line 2
E
end
RUBY
expected = [
@TK::TkDEF .new( 0, 1, 0, 'def'),
@TK::TkSPACE .new( 3, 1, 3, ' '),
@TK::TkIDENTIFIER.new( 4, 1, 4, 'x'),
@TK::TkNL .new( 5, 1, 5, "\n"),
@TK::TkSPACE .new( 6, 2, 0, ' '),
@TK::TkHEREDOC .new( 8, 2, 2,
%Q{<<E\nLine 1\nLine 2\nE}),
@TK::TkNL .new(27, 5, 28, "\n"),
@TK::TkEND .new(28, 6, 0, 'end'),
@TK::TkNL .new(31, 6, 28, "\n"),
]
assert_equal expected, tokens
end
def test_class_tokenize_hash_symbol
tokens = RDoc::RubyLex.tokenize '{ class:"foo" }', nil
expected = [
@TK::TkLBRACE .new( 0, 1, 0, '{'),
@TK::TkSPACE .new( 1, 1, 1, ' '),
@TK::TkIDENTIFIER.new( 2, 1, 2, 'class'),
@TK::TkSYMBEG .new( 7, 1, 7, ':'),
@TK::TkSTRING .new( 8, 1, 8, '"foo"'),
@TK::TkSPACE .new(13, 1, 13, ' '),
@TK::TkRBRACE .new(14, 1, 14, '}'),
@TK::TkNL .new(15, 1, 15, "\n"),
]
assert_equal expected, tokens
end
def test_class_tokenize_heredoc_CR_NL
tokens = RDoc::RubyLex.tokenize <<-RUBY, nil
string = <<-STRING\r
Line 1\r
Line 2\r
STRING\r
RUBY
expected = [
@TK::TkIDENTIFIER.new( 0, 1, 0, 'string'),
@TK::TkSPACE .new( 6, 1, 6, ' '),
@TK::TkASSIGN .new( 7, 1, 7, '='),
@TK::TkSPACE .new( 8, 1, 8, ' '),
@TK::TkHEREDOC .new( 9, 1, 9,
%Q{<<-STRING\nLine 1\nLine 2\n STRING}),
@TK::TkSPACE .new(44, 4, 45, "\r"),
@TK::TkNL .new(45, 4, 46, "\n"),
]
assert_equal expected, tokens
end
def test_class_tokenize_heredoc_call
tokens = RDoc::RubyLex.tokenize <<-'RUBY', nil
string = <<-STRING.chomp
Line 1
Line 2
STRING
RUBY
expected = [
@TK::TkIDENTIFIER.new( 0, 1, 0, 'string'),
@TK::TkSPACE .new( 6, 1, 6, ' '),
@TK::TkASSIGN .new( 7, 1, 7, '='),
@TK::TkSPACE .new( 8, 1, 8, ' '),
@TK::TkSTRING .new( 9, 1, 9, %Q{"Line 1\nLine 2\n"}),
@TK::TkDOT .new(41, 4, 42, '.'),
@TK::TkIDENTIFIER.new(42, 4, 43, 'chomp'),
@TK::TkNL .new(47, 4, 48, "\n"),
]
assert_equal expected, tokens
end
def test_class_tokenize_heredoc_indent
tokens = RDoc::RubyLex.tokenize <<-'RUBY', nil
string = <<-STRING
Line 1
Line 2
STRING
RUBY
expected = [
@TK::TkIDENTIFIER.new( 0, 1, 0, 'string'),
@TK::TkSPACE .new( 6, 1, 6, ' '),
@TK::TkASSIGN .new( 7, 1, 7, '='),
@TK::TkSPACE .new( 8, 1, 8, ' '),
@TK::TkHEREDOC .new( 9, 1, 9,
%Q{<<-STRING\nLine 1\nLine 2\n STRING}),
@TK::TkNL .new(41, 4, 42, "\n"),
]
assert_equal expected, tokens
end
def test_class_tokenize_heredoc_missing_end
e = assert_raises RDoc::RubyLex::Error do
RDoc::RubyLex.tokenize <<-'RUBY', nil
>> string1 = <<-TXT
>" That's swell
>" TXT
RUBY
end
assert_equal 'Missing terminating TXT for string', e.message
end
def test_class_tokenize_heredoc_percent_N
tokens = RDoc::RubyLex.tokenize <<-'RUBY', nil
a b <<-U
%N
U
RUBY
expected = [
@TK::TkIDENTIFIER.new( 0, 1, 0, 'a'),
@TK::TkSPACE .new( 1, 1, 1, ' '),
@TK::TkIDENTIFIER.new( 2, 1, 2, 'b'),
@TK::TkSPACE .new( 3, 1, 3, ' '),
@TK::TkHEREDOC .new( 4, 1, 4, %Q{<<-U\n%N\nU}),
@TK::TkNL .new(13, 3, 14, "\n"),
]
assert_equal expected, tokens
end
def test_class_tokenize_identifier_high_unicode
tokens = RDoc::RubyLex.tokenize '𝖒', nil
expected = @TK::TkIDENTIFIER.new(0, 1, 0, '𝖒')
assert_equal expected, tokens.first
end
def test_class_tokenize_percent_1
tokens = RDoc::RubyLex.tokenize 'v%10==10', nil
expected = [
@TK::TkIDENTIFIER.new(0, 1, 0, 'v'),
@TK::TkMOD.new( 1, 1, 1, '%'),
@TK::TkINTEGER.new( 2, 1, 2, '10'),
@TK::TkEQ.new( 4, 1, 4, '=='),
@TK::TkINTEGER.new( 6, 1, 6, '10'),
@TK::TkNL.new( 8, 1, 8, "\n"),
]
assert_equal expected, tokens
end
def test_class_tokenize_percent_r
tokens = RDoc::RubyLex.tokenize '%r[hi]', nil
expected = [
@TK::TkREGEXP.new( 0, 1, 0, '%r[hi]'),
@TK::TkNL .new( 6, 1, 6, "\n"),
]
assert_equal expected, tokens
end
def test_class_tokenize_percent_w
tokens = RDoc::RubyLex.tokenize '%w[hi]', nil
expected = [
@TK::TkDSTRING.new( 0, 1, 0, '%w[hi]'),
@TK::TkNL .new( 6, 1, 6, "\n"),
]
assert_equal expected, tokens
end
def test_class_tokenize_regexp
tokens = RDoc::RubyLex.tokenize "/hay/", nil
expected = [
@TK::TkREGEXP.new( 0, 1, 0, "/hay/"),
@TK::TkNL .new( 5, 1, 5, "\n"),
]
assert_equal expected, tokens
end
def test_class_tokenize_regexp_backref
tokens = RDoc::RubyLex.tokenize "/[csh](..) [csh]\\1 in/", nil
expected = [
@TK::TkREGEXP.new( 0, 1, 0, "/[csh](..) [csh]\\1 in/"),
@TK::TkNL .new(22, 1, 22, "\n"),
]
assert_equal expected, tokens
end
def test_class_tokenize_regexp_escape
tokens = RDoc::RubyLex.tokenize "/\\//", nil
expected = [
@TK::TkREGEXP.new( 0, 1, 0, "/\\//"),
@TK::TkNL .new( 4, 1, 4, "\n"),
]
assert_equal expected, tokens
end
def test_class_tokenize_string
tokens = RDoc::RubyLex.tokenize "'hi'", nil
expected = [
@TK::TkSTRING.new( 0, 1, 0, "'hi'"),
@TK::TkNL .new( 4, 1, 4, "\n"),
]
assert_equal expected, tokens
end
def test_unary_minus
ruby_lex = RDoc::RubyLex.new("-1", nil)
assert_equal("-1", ruby_lex.token.value)
ruby_lex = RDoc::RubyLex.new("a[-2]", nil)
2.times { ruby_lex.token } # skip "a" and "["
assert_equal("-2", ruby_lex.token.value)
ruby_lex = RDoc::RubyLex.new("a[0..-12]", nil)
4.times { ruby_lex.token } # skip "a", "[", "0", and ".."
assert_equal("-12", ruby_lex.token.value)
ruby_lex = RDoc::RubyLex.new("0+-0.1", nil)
2.times { ruby_lex.token } # skip "0" and "+"
assert_equal("-0.1", ruby_lex.token.value)
end
end