require 'test/unit' class TestRubyLiteral < Test::Unit::TestCase def test_special_const assert_equal 'true', true.inspect assert_instance_of TrueClass, true assert_equal 'false', false.inspect assert_instance_of FalseClass, false assert_equal 'nil', nil.inspect assert_instance_of NilClass, nil assert_equal ':sym', :sym.inspect assert_instance_of Symbol, :sym assert_equal '1234', 1234.inspect assert_instance_of Fixnum, 1234 assert_equal '1234', 1_2_3_4.inspect assert_instance_of Fixnum, 1_2_3_4 assert_equal '18', 0x12.inspect assert_instance_of Fixnum, 0x12 assert_raise(SyntaxError) { eval("0x") } assert_equal '15', 0o17.inspect assert_instance_of Fixnum, 0o17 assert_raise(SyntaxError) { eval("0o") } assert_equal '5', 0b101.inspect assert_instance_of Fixnum, 0b101 assert_raise(SyntaxError) { eval("0b") } assert_equal '123456789012345678901234567890', 123456789012345678901234567890.inspect assert_instance_of Bignum, 123456789012345678901234567890 assert_instance_of Float, 1.3 end def test_self assert_equal self, self assert_instance_of TestRubyLiteral, self assert_respond_to self, :test_self end def test_string assert_instance_of String, ?a assert_equal "a", ?a assert_instance_of String, ?A assert_equal "A", ?A assert_instance_of String, ?\n assert_equal "\n", ?\n assert_equal " ", ?\ # space assert_equal '', '' assert_equal 'string', 'string' assert_equal 'string string', 'string string' assert_equal ' ', ' ' assert_equal ' ', " " assert_equal "\0", "\0" assert_equal "\1", "\1" assert_equal "3", "\x33" assert_equal "\n", "\n" bug2500 = '[ruby-core:27228]' %w[c C- M-].each do |pre| ["u", "x", %w[u{ }]].each do |open, close| str = "\"\\#{pre}\\#{open}5555#{close}\"" assert_raise(SyntaxError, "#{bug2500} eval(#{str})") {eval(str)} end end end def test_dstring assert_equal '2', "#{1+1}" assert_equal '16', "#{2 ** 4}" s = "string" assert_equal s, "#{s}" a = 'Foo' b = "#{a}" << 'Bar' assert_equal('Foo', a, 'r3842') assert_equal('FooBar', b, 'r3842') end def test_dsymbol assert_equal :a3c, :"a#{1+2}c" end def test_xstring assert_equal "foo\n", `echo foo` s = 'foo' assert_equal "foo\n", `echo #{s}` end def test_regexp assert_instance_of Regexp, // assert_match(//, 'a') assert_match(//, '') assert_instance_of Regexp, /a/ assert_match(/a/, 'a') assert_no_match(/test/, 'tes') re = /test/ assert_match re, 'test' str = 'test' assert_match re, str assert_match(/test/, str) assert_equal 0, (/test/ =~ 'test') assert_equal 0, (re =~ 'test') assert_equal 0, (/test/ =~ str) assert_equal 0, (re =~ str) assert_equal 0, ('test' =~ /test/) assert_equal 0, ('test' =~ re) assert_equal 0, (str =~ /test/) assert_equal 0, (str =~ re) end def test_dregexp assert_instance_of Regexp, /re#{'ge'}xp/ assert_equal(/regexp/, /re#{'ge'}xp/) end def test_array assert_instance_of Array, [] assert_equal [], [] assert_equal 0, [].size assert_instance_of Array, [0] assert_equal [3], [3] assert_equal 1, [3].size a = [3] assert_equal 3, a[0] assert_instance_of Array, [1,2] assert_equal [1,2], [1,2] assert_instance_of Array, [1,2,3,4,5] assert_equal [1,2,3,4,5], [1,2,3,4,5] assert_equal 5, [1,2,3,4,5].size a = [1,2] assert_equal 1, a[0] assert_equal 2, a[1] a = [1 + 2, 3 + 4, 5 + 6] assert_instance_of Array, a assert_equal [3, 7, 11], a assert_equal 7, a[1] assert_equal 1, ([0][0] += 1) assert_equal 1, ([2][0] -= 1) a = [obj = Object.new] assert_instance_of Array, a assert_equal 1, a.size assert_equal obj, a[0] a = [1,2,3] a[1] = 5 assert_equal 5, a[1] end def test_hash assert_instance_of Hash, {} assert_equal({}, {}) assert_instance_of Hash, {1 => 2} assert_equal({1 => 2}, {1 => 2}) h = {1 => 2} assert_equal 2, h[1] h = {"string" => "literal", "goto" => "hell"} assert_equal h, h assert_equal 2, h.size assert_equal h, h assert_equal "literal", h["string"] end def test_range assert_instance_of Range, (1..2) assert_equal(1..2, 1..2) r = 1..2 assert_equal 1, r.begin assert_equal 2, r.end assert_equal false, r.exclude_end? assert_instance_of Range, (1...3) assert_equal(1...3, 1...3) r = 1...3 assert_equal 1, r.begin assert_equal 3, r.end assert_equal true, r.exclude_end? r = 1+2 .. 3+4 assert_instance_of Range, r assert_equal 3, r.begin assert_equal 7, r.end assert_equal false, r.exclude_end? r = 1+2 ... 3+4 assert_instance_of Range, r assert_equal 3, r.begin assert_equal 7, r.end assert_equal true, r.exclude_end? assert_instance_of Range, 'a'..'c' r = 'a'..'c' assert_equal 'a', r.begin assert_equal 'c', r.end end def test__FILE__ assert_instance_of String, __FILE__ assert_equal __FILE__, __FILE__ assert_equal 'test_literal.rb', File.basename(__FILE__) end def test__LINE__ assert_instance_of Fixnum, __LINE__ assert_equal __LINE__, __LINE__ end def test_integer head = ['', '0x', '0o', '0b', '0d', '-', '+'] chars = ['0', '1', '_', '9', 'f'] head.each {|h| 4.times {|len| a = [h] len.times { a = a.product(chars).map {|x| x.join('') } } a.each {|s| next if s.empty? begin r1 = Integer(s) rescue ArgumentError r1 = :err end begin r2 = eval(s) rescue NameError, SyntaxError r2 = :err end assert_equal(r1, r2, "Integer(#{s.inspect}) != eval(#{s.inspect})") } } } bug2407 = '[ruby-dev:39798]' head.each {|h| if /^0/ =~ h begin eval("#{h}_") rescue SyntaxError => e assert_match(/numeric literal without digits\Z/, e.message, bug2407) end end } end def test_float head = ['', '-', '+'] chars = ['0', '1', '_', '9', 'f', '.'] head.each {|h| 6.times {|len| a = [h] len.times { a = a.product(chars).map {|x| x.join('') } } a.each {|s| next if s.empty? next if /\.\z/ =~ s next if /\A[-+]?\./ =~ s next if /\A[-+]?0/ =~ s begin r1 = Float(s) rescue ArgumentError r1 = :err end begin r2 = eval(s) rescue NameError, SyntaxError r2 = :err end r2 = :err if Range === r2 assert_equal(r1, r2, "Float(#{s.inspect}) != eval(#{s.inspect})") } } } end end