vendor/rails/actionpack/test/template/text_helper_test.rb

   1 require 'abstract_unit'
   2 require 'testing_sandbox'
   3
   4 class TextHelperTest < ActionView::TestCase
   5   tests ActionView::Helpers::TextHelper
   6   include TestingSandbox
   7
   8   def setup
   9     # This simulates the fact that instance variables are reset every time
  10     # a view is rendered.  The cycle helper depends on this behavior.
  11     @_cycles = nil if (defined? @_cycles)
  12   end
  13
  14   def test_concat
  15     self.output_buffer = 'foo'
  16     assert_equal 'foobar', concat('bar')
  17     assert_equal 'foobar', output_buffer
  18   end
  19
  20   def test_simple_format
  21     assert_equal "<p></p>", simple_format(nil)
  22
  23     assert_equal "<p>crazy\n<br /> cross\n<br /> platform linebreaks</p>", simple_format("crazy\r\n cross\r platform linebreaks")
  24     assert_equal "<p>A paragraph</p>\n\n<p>and another one!</p>", simple_format("A paragraph\n\nand another one!")
  25     assert_equal "<p>A paragraph\n<br /> With a newline</p>", simple_format("A paragraph\n With a newline")
  26
  27     text = "A\nB\nC\nD".freeze
  28     assert_equal "<p>A\n<br />B\n<br />C\n<br />D</p>", simple_format(text)
  29
  30     text = "A\r\n  \nB\n\n\r\n\t\nC\nD".freeze
  31     assert_equal "<p>A\n<br />  \n<br />B</p>\n\n<p>\t\n<br />C\n<br />D</p>", simple_format(text)
  32
  33      assert_equal %q(<p class="test">This is a classy test</p>), simple_format("This is a classy test", :class => 'test')
  34      assert_equal %Q(<p class="test">para 1</p>\n\n<p class="test">para 2</p>), simple_format("para 1\n\npara 2", :class => 'test')
  35   end
  36
  37   def test_truncate
  38     assert_equal "Hello World!", truncate("Hello World!", :length => 12)
  39     assert_equal "Hello Wor...", truncate("Hello World!!", :length => 12)
  40   end
  41
  42   def test_truncate_should_use_default_length_of_30
  43     str = "This is a string that will go longer then the default truncate length of 30"
  44     assert_equal str[0...27] + "...", truncate(str)
  45   end
  46
  47   def test_truncate_with_options_hash
  48     assert_equal "This is a string that wil[...]", truncate("This is a string that will go longer then the default truncate length of 30", :omission => "[...]")
  49     assert_equal "Hello W...", truncate("Hello World!", :length => 10)
  50     assert_equal "Hello[...]", truncate("Hello World!", :omission => "[...]", :length => 10)
  51   end
  52
  53   if RUBY_VERSION < '1.9.0'
  54     def test_truncate_multibyte
  55       with_kcode 'none' do
  56         assert_equal "\354\225\210\353\205\225\355...", truncate("\354\225\210\353\205\225\355\225\230\354\204\270\354\232\224", :length => 10)
  57       end
  58       with_kcode 'u' do
  59         assert_equal "\354\225\204\353\246\254\353\236\221 \354\225\204\353\246\254 ...",
  60           truncate("\354\225\204\353\246\254\353\236\221 \354\225\204\353\246\254 \354\225\204\353\235\274\353\246\254\354\230\244", :length => 10)
  61       end
  62     end
  63   else
  64     def test_truncate_multibyte
  65       assert_equal "\354\225\210\353\205\225\355...",
  66         truncate("\354\225\210\353\205\225\355\225\230\354\204\270\354\232\224", :length => 10)
  67
  68       assert_equal "\354\225\204\353\246\254\353\236\221 \354\225\204\353\246\254 ...".force_encoding('UTF-8'),
  69         truncate("\354\225\204\353\246\254\353\236\221 \354\225\204\353\246\254 \354\225\204\353\235\274\353\246\254\354\230\244".force_encoding('UTF-8'), :length => 10)
  70     end
  71   end
  72
  73   def test_highlighter
  74     assert_equal(
  75       "This is a <strong class=\"highlight\">beautiful</strong> morning",
  76       highlight("This is a beautiful morning", "beautiful")
  77     )
  78
  79     assert_equal(
  80       "This is a <strong class=\"highlight\">beautiful</strong> morning, but also a <strong class=\"highlight\">beautiful</strong> day",
  81       highlight("This is a beautiful morning, but also a beautiful day", "beautiful")
  82     )
  83
  84     assert_equal(
  85       "This is a <b>beautiful</b> morning, but also a <b>beautiful</b> day",
  86       highlight("This is a beautiful morning, but also a beautiful day", "beautiful", '<b>\1</b>')
  87     )
  88
  89     assert_equal(
  90       "This text is not changed because we supplied an empty phrase",
  91       highlight("This text is not changed because we supplied an empty phrase", nil)
  92     )
  93
  94     assert_equal '   ', highlight('   ', 'blank text is returned verbatim')
  95   end
  96
  97   def test_highlight_with_regexp
  98     assert_equal(
  99       "This is a <strong class=\"highlight\">beautiful!</strong> morning",
 100       highlight("This is a beautiful! morning", "beautiful!")
 101     )
 102
 103     assert_equal(
 104       "This is a <strong class=\"highlight\">beautiful! morning</strong>",
 105       highlight("This is a beautiful! morning", "beautiful! morning")
 106     )
 107
 108     assert_equal(
 109       "This is a <strong class=\"highlight\">beautiful? morning</strong>",
 110       highlight("This is a beautiful? morning", "beautiful? morning")
 111     )
 112   end
 113
 114   def test_highlight_with_multiple_phrases_in_one_pass
 115     assert_equal %(<em>wow</em> <em>em</em>), highlight('wow em', %w(wow em), '<em>\1</em>')
 116   end
 117
 118   def test_highlight_with_options_hash
 119     assert_equal(
 120       "This is a <b>beautiful</b> morning, but also a <b>beautiful</b> day",
 121       highlight("This is a beautiful morning, but also a beautiful day", "beautiful", :highlighter => '<b>\1</b>')
 122     )
 123   end
 124
 125   def test_excerpt
 126     assert_equal("...is a beautiful morn...", excerpt("This is a beautiful morning", "beautiful", 5))
 127     assert_equal("This is a...", excerpt("This is a beautiful morning", "this", 5))
 128     assert_equal("...iful morning", excerpt("This is a beautiful morning", "morning", 5))
 129     assert_nil excerpt("This is a beautiful morning", "day")
 130   end
 131
 132   def test_excerpt_in_borderline_cases
 133     assert_equal("", excerpt("", "", 0))
 134     assert_equal("a", excerpt("a", "a", 0))
 135     assert_equal("...b...", excerpt("abc", "b", 0))
 136     assert_equal("abc", excerpt("abc", "b", 1))
 137     assert_equal("abc...", excerpt("abcd", "b", 1))
 138     assert_equal("...abc", excerpt("zabc", "b", 1))
 139     assert_equal("...abc...", excerpt("zabcd", "b", 1))
 140     assert_equal("zabcd", excerpt("zabcd", "b", 2))
 141
 142     # excerpt strips the resulting string before ap-/prepending excerpt_string.
 143     # whether this behavior is meaningful when excerpt_string is not to be
 144     # appended is questionable.
 145     assert_equal("zabcd", excerpt("  zabcd  ", "b", 4))
 146     assert_equal("...abc...", excerpt("z  abc  d", "b", 1))
 147   end
 148
 149   def test_excerpt_with_regex
 150     assert_equal('...is a beautiful! mor...', excerpt('This is a beautiful! morning', 'beautiful', 5))
 151     assert_equal('...is a beautiful? mor...', excerpt('This is a beautiful? morning', 'beautiful', 5))
 152   end
 153
 154   def test_excerpt_with_options_hash
 155     assert_equal("...is a beautiful morn...", excerpt("This is a beautiful morning", "beautiful", :radius => 5))
 156     assert_equal("[...]is a beautiful morn[...]", excerpt("This is a beautiful morning", "beautiful", :omission => "[...]",:radius => 5))
 157     assert_equal(
 158       "This is the ultimate supercalifragilisticexpialidoceous very looooooooooooooooooong looooooooooooong beautiful morning with amazing sunshine and awesome tempera[...]",
 159       excerpt("This is the ultimate supercalifragilisticexpialidoceous very looooooooooooooooooong looooooooooooong beautiful morning with amazing sunshine and awesome temperatures. So what are you gonna do about it?", "very",
 160       :omission => "[...]")
 161     )
 162   end
 163
 164   if RUBY_VERSION < '1.9'
 165     def test_excerpt_with_utf8
 166       with_kcode('u') do
 167         assert_equal("...\357\254\203ciency could not be...", excerpt("That's why e\357\254\203ciency could not be helped", 'could', 8))
 168       end
 169       with_kcode('none') do
 170         assert_equal("...\203ciency could not be...", excerpt("That's why e\357\254\203ciency could not be helped", 'could', 8))
 171       end
 172     end
 173   else
 174     def test_excerpt_with_utf8
 175       assert_equal("...\357\254\203ciency could not be...".force_encoding('UTF-8'), excerpt("That's why e\357\254\203ciency could not be helped".force_encoding('UTF-8'), 'could', 8))
 176       assert_equal("...\203ciency could not be...", excerpt("That's why e\357\254\203ciency could not be helped", 'could', 8))
 177     end
 178   end
 179
 180   def test_word_wrap
 181     assert_equal("my very very\nvery long\nstring", word_wrap("my very very very long string", 15))
 182   end
 183
 184   def test_word_wrap_with_extra_newlines
 185     assert_equal("my very very\nvery long\nstring\n\nwith another\nline", word_wrap("my very very very long string\n\nwith another line", 15))
 186   end
 187
 188   def test_word_wrap_with_options_hash
 189     assert_equal("my very very\nvery long\nstring", word_wrap("my very very very long string", :line_width => 15))
 190   end
 191
 192   def test_pluralization
 193     assert_equal("1 count", pluralize(1, "count"))
 194     assert_equal("2 counts", pluralize(2, "count"))
 195     assert_equal("1 count", pluralize('1', "count"))
 196     assert_equal("2 counts", pluralize('2', "count"))
 197     assert_equal("1,066 counts", pluralize('1,066', "count"))
 198     assert_equal("1.25 counts", pluralize('1.25', "count"))
 199     assert_equal("2 counters", pluralize(2, "count", "counters"))
 200     assert_equal("0 counters", pluralize(nil, "count", "counters"))
 201     assert_equal("2 people", pluralize(2, "person"))
 202     assert_equal("10 buffaloes", pluralize(10, "buffalo"))
 203     assert_equal("1 berry", pluralize(1, "berry"))
 204     assert_equal("12 berries", pluralize(12, "berry"))
 205   end
 206
 207   def test_auto_link_parsing
 208     urls = %w(http://www.rubyonrails.com
 209               http://www.rubyonrails.com:80
 210               http://www.rubyonrails.com/~minam
 211               https://www.rubyonrails.com/~minam
 212               http://www.rubyonrails.com/~minam/url%20with%20spaces
 213               http://www.rubyonrails.com/foo.cgi?something=here
 214               http://www.rubyonrails.com/foo.cgi?something=here&and=here
 215               http://www.rubyonrails.com/contact;new
 216               http://www.rubyonrails.com/contact;new%20with%20spaces
 217               http://www.rubyonrails.com/contact;new?with=query&string=params
 218               http://www.rubyonrails.com/~minam/contact;new?with=query&string=params
 219               http://en.wikipedia.org/wiki/Wikipedia:Today%27s_featured_picture_%28animation%29/January_20%2C_2007
 220               http://www.mail-archive.com/rails@lists.rubyonrails.org/
 221               http://www.amazon.com/Testing-Equal-Sign-In-Path/ref=pd_bbs_sr_1?ie=UTF8&s=books&qid=1198861734&sr=8-1
 222               http://en.wikipedia.org/wiki/Sprite_(computer_graphics)
 223               http://en.wikipedia.org/wiki/Texas_hold'em
 224               https://www.google.com/doku.php?id=gps:resource:scs:start
 225             )
 226
 227     urls.each do |url|
 228       assert_equal %(<a href="#{url}">#{url}</a>), auto_link(url)
 229     end
 230   end
 231
 232   def test_auto_linking
 233     email_raw    = 'david@loudthinking.com'
 234     email_result = %{<a href="mailto:#{email_raw}">#{email_raw}</a>}
 235     email2_raw    = '+david@loudthinking.com'
 236     email2_result = %{<a href="mailto:#{email2_raw}">#{email2_raw}</a>}
 237     link_raw     = 'http://www.rubyonrails.com'
 238     link_result  = %{<a href="#{link_raw}">#{link_raw}</a>}
 239     link_result_with_options  = %{<a href="#{link_raw}" target="_blank">#{link_raw}</a>}
 240     link2_raw    = 'www.rubyonrails.com'
 241     link2_result = %{<a href="http://#{link2_raw}">#{link2_raw}</a>}
 242     link3_raw    = 'http://manuals.ruby-on-rails.com/read/chapter.need_a-period/103#page281'
 243     link3_result = %{<a href="#{link3_raw}">#{link3_raw}</a>}
 244     link4_raw    = 'http://foo.example.com/controller/action?parm=value&p2=v2#anchor123'
 245     link4_result = %{<a href="#{link4_raw}">#{link4_raw}</a>}
 246     link5_raw    = 'http://foo.example.com:3000/controller/action'
 247     link5_result = %{<a href="#{link5_raw}">#{link5_raw}</a>}
 248     link6_raw    = 'http://foo.example.com:3000/controller/action+pack'
 249     link6_result = %{<a href="#{link6_raw}">#{link6_raw}</a>}
 250     link7_raw    = 'http://foo.example.com/controller/action?parm=value&p2=v2#anchor-123'
 251     link7_result = %{<a href="#{link7_raw}">#{link7_raw}</a>}
 252     link8_raw    = 'http://foo.example.com:3000/controller/action.html'
 253     link8_result = %{<a href="#{link8_raw}">#{link8_raw}</a>}
 254     link9_raw    = 'http://business.timesonline.co.uk/article/0,,9065-2473189,00.html'
 255     link9_result = %{<a href="#{link9_raw}">#{link9_raw}</a>}
 256     link10_raw    = 'http://www.mail-archive.com/ruby-talk@ruby-lang.org/'
 257     link10_result = %{<a href="#{link10_raw}">#{link10_raw}</a>}
 258
 259     assert_equal %(hello #{email_result}), auto_link("hello #{email_raw}", :email_addresses)
 260     assert_equal %(Go to #{link_result}), auto_link("Go to #{link_raw}", :urls)
 261     assert_equal %(Go to #{link_raw}), auto_link("Go to #{link_raw}", :email_addresses)
 262     assert_equal %(Go to #{link_result} and say hello to #{email_result}), auto_link("Go to #{link_raw} and say hello to #{email_raw}")
 263     assert_equal %(<p>Link #{link_result}</p>), auto_link("<p>Link #{link_raw}</p>")
 264     assert_equal %(<p>#{link_result} Link</p>), auto_link("<p>#{link_raw} Link</p>")
 265     assert_equal %(<p>Link #{link_result_with_options}</p>), auto_link("<p>Link #{link_raw}</p>", :all, {:target => "_blank"})
 266     assert_equal %(Go to #{link_result}.), auto_link(%(Go to #{link_raw}.))
 267     assert_equal %(<p>Go to #{link_result}, then say hello to #{email_result}.</p>), auto_link(%(<p>Go to #{link_raw}, then say hello to #{email_raw}.</p>))
 268     assert_equal %(Go to #{link2_result}), auto_link("Go to #{link2_raw}", :urls)
 269     assert_equal %(Go to #{link2_raw}), auto_link("Go to #{link2_raw}", :email_addresses)
 270     assert_equal %(<p>Link #{link2_result}</p>), auto_link("<p>Link #{link2_raw}</p>")
 271     assert_equal %(<p>#{link2_result} Link</p>), auto_link("<p>#{link2_raw} Link</p>")
 272     assert_equal %(Go to #{link2_result}.), auto_link(%(Go to #{link2_raw}.))
 273     assert_equal %(<p>Say hello to #{email_result}, then go to #{link2_result}.</p>), auto_link(%(<p>Say hello to #{email_raw}, then go to #{link2_raw}.</p>))
 274     assert_equal %(Go to #{link3_result}), auto_link("Go to #{link3_raw}", :urls)
 275     assert_equal %(Go to #{link3_raw}), auto_link("Go to #{link3_raw}", :email_addresses)
 276     assert_equal %(<p>Link #{link3_result}</p>), auto_link("<p>Link #{link3_raw}</p>")
 277     assert_equal %(<p>#{link3_result} Link</p>), auto_link("<p>#{link3_raw} Link</p>")
 278     assert_equal %(Go to #{link3_result}.), auto_link(%(Go to #{link3_raw}.))
 279     assert_equal %(<p>Go to #{link3_result}. seriously, #{link3_result}? i think I'll say hello to #{email_result}. instead.</p>), auto_link(%(<p>Go to #{link3_raw}. seriously, #{link3_raw}? i think I'll say hello to #{email_raw}. instead.</p>))
 280     assert_equal %(<p>Link #{link4_result}</p>), auto_link("<p>Link #{link4_raw}</p>")
 281     assert_equal %(<p>#{link4_result} Link</p>), auto_link("<p>#{link4_raw} Link</p>")
 282     assert_equal %(<p>#{link5_result} Link</p>), auto_link("<p>#{link5_raw} Link</p>")
 283     assert_equal %(<p>#{link6_result} Link</p>), auto_link("<p>#{link6_raw} Link</p>")
 284     assert_equal %(<p>#{link7_result} Link</p>), auto_link("<p>#{link7_raw} Link</p>")
 285     assert_equal %(Go to #{link8_result}), auto_link("Go to #{link8_raw}", :urls)
 286     assert_equal %(Go to #{link8_raw}), auto_link("Go to #{link8_raw}", :email_addresses)
 287     assert_equal %(<p>Link #{link8_result}</p>), auto_link("<p>Link #{link8_raw}</p>")
 288     assert_equal %(<p>#{link8_result} Link</p>), auto_link("<p>#{link8_raw} Link</p>")
 289     assert_equal %(Go to #{link8_result}.), auto_link(%(Go to #{link8_raw}.))
 290     assert_equal %(<p>Go to #{link8_result}. seriously, #{link8_result}? i think I'll say hello to #{email_result}. instead.</p>), auto_link(%(<p>Go to #{link8_raw}. seriously, #{link8_raw}? i think I'll say hello to #{email_raw}. instead.</p>))
 291     assert_equal %(Go to #{link9_result}), auto_link("Go to #{link9_raw}", :urls)
 292     assert_equal %(Go to #{link9_raw}), auto_link("Go to #{link9_raw}", :email_addresses)
 293     assert_equal %(<p>Link #{link9_result}</p>), auto_link("<p>Link #{link9_raw}</p>")
 294     assert_equal %(<p>#{link9_result} Link</p>), auto_link("<p>#{link9_raw} Link</p>")
 295     assert_equal %(Go to #{link9_result}.), auto_link(%(Go to #{link9_raw}.))
 296     assert_equal %(<p>Go to #{link9_result}. seriously, #{link9_result}? i think I'll say hello to #{email_result}. instead.</p>), auto_link(%(<p>Go to #{link9_raw}. seriously, #{link9_raw}? i think I'll say hello to #{email_raw}. instead.</p>))
 297     assert_equal %(<p>#{link10_result} Link</p>), auto_link("<p>#{link10_raw} Link</p>")
 298     assert_equal email2_result, auto_link(email2_raw)
 299     assert_equal '', auto_link(nil)
 300     assert_equal '', auto_link('')
 301     assert_equal "#{link_result} #{link_result} #{link_result}", auto_link("#{link_raw} #{link_raw} #{link_raw}")
 302     assert_equal '<a href="http://www.rubyonrails.com">Ruby On Rails</a>', auto_link('<a href="http://www.rubyonrails.com">Ruby On Rails</a>')
 303   end
 304
 305   def test_auto_link_at_eol
 306     url1 = "http://api.rubyonrails.com/Foo.html"
 307     url2 = "http://www.ruby-doc.org/core/Bar.html"
 308
 309     assert_equal %(<p><a href="#{url1}">#{url1}</a><br /><a href="#{url2}">#{url2}</a><br /></p>), auto_link("<p>#{url1}<br />#{url2}<br /></p>")
 310   end
 311
 312   def test_auto_link_with_block
 313     url = "http://api.rubyonrails.com/Foo.html"
 314     email = "fantabulous@shiznadel.ic"
 315
 316     assert_equal %(<p><a href="#{url}">#{url[0...7]}...</a><br /><a href="mailto:#{email}">#{email[0...7]}...</a><br /></p>), auto_link("<p>#{url}<br />#{email}<br /></p>") { |url| truncate(url, :length => 10) }
 317   end
 318
 319   def test_auto_link_with_options_hash
 320     assert_equal 'Welcome to my new blog at <a href="http://www.myblog.com/" class="menu" target="_blank">http://www.myblog.com/</a>. Please e-mail me at <a href="mailto:me@email.com">me@email.com</a>.',
 321       auto_link("Welcome to my new blog at http://www.myblog.com/. Please e-mail me at me@email.com.",
 322                 :link => :all, :html => { :class => "menu", :target => "_blank" })
 323   end
 324
 325   def test_cycle_class
 326     value = Cycle.new("one", 2, "3")
 327     assert_equal("one", value.to_s)
 328     assert_equal("2", value.to_s)
 329     assert_equal("3", value.to_s)
 330     assert_equal("one", value.to_s)
 331     value.reset
 332     assert_equal("one", value.to_s)
 333     assert_equal("2", value.to_s)
 334     assert_equal("3", value.to_s)
 335   end
 336
 337   def test_cycle_class_with_no_arguments
 338     assert_raise(ArgumentError) { value = Cycle.new() }
 339   end
 340
 341   def test_cycle
 342     assert_equal("one", cycle("one", 2, "3"))
 343     assert_equal("2", cycle("one", 2, "3"))
 344     assert_equal("3", cycle("one", 2, "3"))
 345     assert_equal("one", cycle("one", 2, "3"))
 346     assert_equal("2", cycle("one", 2, "3"))
 347     assert_equal("3", cycle("one", 2, "3"))
 348   end
 349
 350   def test_cycle_with_no_arguments
 351     assert_raise(ArgumentError) { value = cycle() }
 352   end
 353
 354   def test_cycle_resets_with_new_values
 355     assert_equal("even", cycle("even", "odd"))
 356     assert_equal("odd", cycle("even", "odd"))
 357     assert_equal("even", cycle("even", "odd"))
 358     assert_equal("1", cycle(1, 2, 3))
 359     assert_equal("2", cycle(1, 2, 3))
 360     assert_equal("3", cycle(1, 2, 3))
 361     assert_equal("1", cycle(1, 2, 3))
 362   end
 363
 364   def test_named_cycles
 365     assert_equal("1", cycle(1, 2, 3, :name => "numbers"))
 366     assert_equal("red", cycle("red", "blue", :name => "colors"))
 367     assert_equal("2", cycle(1, 2, 3, :name => "numbers"))
 368     assert_equal("blue", cycle("red", "blue", :name => "colors"))
 369     assert_equal("3", cycle(1, 2, 3, :name => "numbers"))
 370     assert_equal("red", cycle("red", "blue", :name => "colors"))
 371   end
 372
 373   def test_current_cycle_with_default_name
 374     cycle("even","odd")
 375     assert_equal "even", current_cycle
 376     cycle("even","odd")
 377     assert_equal "odd", current_cycle
 378     cycle("even","odd")
 379     assert_equal "even", current_cycle
 380   end
 381
 382   def test_current_cycle_with_named_cycles
 383     cycle("red", "blue", :name => "colors")
 384     assert_equal "red", current_cycle("colors")
 385     cycle("red", "blue", :name => "colors")
 386     assert_equal "blue", current_cycle("colors")
 387     cycle("red", "blue", :name => "colors")
 388     assert_equal "red", current_cycle("colors")
 389   end
 390
 391   def test_current_cycle_safe_call
 392     assert_nothing_raised { current_cycle }
 393     assert_nothing_raised { current_cycle("colors") }
 394   end
 395
 396   def test_current_cycle_with_more_than_two_names
 397     cycle(1,2,3)
 398     assert_equal "1", current_cycle
 399     cycle(1,2,3)
 400     assert_equal "2", current_cycle
 401     cycle(1,2,3)
 402     assert_equal "3", current_cycle
 403     cycle(1,2,3)
 404     assert_equal "1", current_cycle
 405   end
 406
 407   def test_default_named_cycle
 408     assert_equal("1", cycle(1, 2, 3))
 409     assert_equal("2", cycle(1, 2, 3, :name => "default"))
 410     assert_equal("3", cycle(1, 2, 3))
 411   end
 412
 413   def test_reset_cycle
 414     assert_equal("1", cycle(1, 2, 3))
 415     assert_equal("2", cycle(1, 2, 3))
 416     reset_cycle
 417     assert_equal("1", cycle(1, 2, 3))
 418   end
 419
 420   def test_reset_unknown_cycle
 421     reset_cycle("colors")
 422   end
 423
 424   def test_recet_named_cycle
 425     assert_equal("1", cycle(1, 2, 3, :name => "numbers"))
 426     assert_equal("red", cycle("red", "blue", :name => "colors"))
 427     reset_cycle("numbers")
 428     assert_equal("1", cycle(1, 2, 3, :name => "numbers"))
 429     assert_equal("blue", cycle("red", "blue", :name => "colors"))
 430     assert_equal("2", cycle(1, 2, 3, :name => "numbers"))
 431     assert_equal("red", cycle("red", "blue", :name => "colors"))
 432   end
 433
 434   def test_cycle_no_instance_variable_clashes
 435     @cycles = %w{Specialized Fuji Giant}
 436     assert_equal("red", cycle("red", "blue"))
 437     assert_equal("blue", cycle("red", "blue"))
 438     assert_equal("red", cycle("red", "blue"))
 439     assert_equal(%w{Specialized Fuji Giant}, @cycles)
 440   end
 441 end