• StoreControllerTest#block (2 levels) in <class:StoreControllerTest> /home/z/test_rails/depot/test/controllers/store_controller_test.rb:10
  • StoreControllerTest#assert_select $GemPath0/gems/rails-dom-testing-2.0.2/lib/rails/dom/testing/assertions/selector_assertions.rb:161
    • Class#new $GemPath0/gems/rails-dom-testing-2.0.2/lib/rails/dom/testing/assertions/selector_assertions.rb:164
      • HTMLSelector#initialize $GemPath0/gems/rails-dom-testing-2.0.2/lib/rails/dom/testing/assertions/selector_assertions/html_selector.rb:7
        • HTMLSelector#extract_root $GemPath0/gems/rails-dom-testing-2.0.2/lib/rails/dom/testing/assertions/selector_assertions/html_selector.rb:59
          • Array#first $GemPath0/gems/rails-dom-testing-2.0.2/lib/rails/dom/testing/assertions/selector_assertions/html_selector.rb:60
          • String#== $GemPath0/gems/rails-dom-testing-2.0.2/lib/rails/dom/testing/assertions/selector_assertions/html_selector.rb:62
          • Kernel#respond_to? $GemPath0/gems/rails-dom-testing-2.0.2/lib/rails/dom/testing/assertions/selector_assertions/html_selector.rb:66
          • StoreControllerTest#block in assert_select $GemPath0/gems/rails-dom-testing-2.0.2/lib/rails/dom/testing/assertions/selector_assertions.rb:164
            • StoreControllerTest#document_root_element $GemPath0/gems/actionpack-5.0.2/lib/action_dispatch/testing/integration.rb:735
              • StoreControllerTest#html_document $GemPath0/gems/actionpack-5.0.2/lib/action_dispatch/testing/assertions.rb:14
              • Nokogiri::XML::Document#root $GemPath0/gems/actionpack-5.0.2/lib/action_dispatch/testing/integration.rb:736
            • StoreControllerTest#nodeset $GemPath0/gems/rails-dom-testing-2.0.2/lib/rails/dom/testing/assertions/selector_assertions.rb:291
              • Kernel#is_a? $GemPath0/gems/rails-dom-testing-2.0.2/lib/rails/dom/testing/assertions/selector_assertions.rb:292
              • Nokogiri::XML::Node#document $GemPath0/gems/rails-dom-testing-2.0.2/lib/rails/dom/testing/assertions/selector_assertions.rb:295
              • Class#new $GemPath0/gems/rails-dom-testing-2.0.2/lib/rails/dom/testing/assertions/selector_assertions.rb:295
                • Nokogiri::XML::NodeSet#initialize $GemPath0/gems/nokogiri-1.7.1/lib/nokogiri/xml/node_set.rb:15
                  • Nokogiri::HTML::Document#decorate $GemPath0/gems/nokogiri-1.7.1/lib/nokogiri/xml/document.rb:214
                  • Array#each $GemPath0/gems/nokogiri-1.7.1/lib/nokogiri/xml/node_set.rb:18
                    • Nokogiri::XML::NodeSet#block in initialize $GemPath0/gems/nokogiri-1.7.1/lib/nokogiri/xml/node_set.rb:18
                      • Nokogiri::XML::NodeSet#push $GemPath0/gems/nokogiri-1.7.1/lib/nokogiri/xml/node_set.rb:18
                  • Kernel#block_given? $GemPath0/gems/nokogiri-1.7.1/lib/nokogiri/xml/node_set.rb:19
        • HTMLSelector#extract_selectors $GemPath0/gems/rails-dom-testing-2.0.2/lib/rails/dom/testing/assertions/selector_assertions/html_selector.rb:76
          • Array#shift $GemPath0/gems/rails-dom-testing-2.0.2/lib/rails/dom/testing/assertions/selector_assertions/html_selector.rb:77
          • Kernel#is_a? $GemPath0/gems/rails-dom-testing-2.0.2/lib/rails/dom/testing/assertions/selector_assertions/html_selector.rb:79
          • HTMLSelector#context $GemPath0/gems/activesupport-5.0.2/lib/active_support/core_ext/module/attribute_accessors.rb:67
          • Kernel#dup $GemPath0/gems/rails-dom-testing-2.0.2/lib/rails/dom/testing/assertions/selector_assertions/html_selector.rb:83
            • Kernel#initialize_dup $GemPath0/gems/rails-dom-testing-2.0.2/lib/rails/dom/testing/assertions/selector_assertions/html_selector.rb:83
              • Array#initialize_copy $GemPath0/gems/rails-dom-testing-2.0.2/lib/rails/dom/testing/assertions/selector_assertions/html_selector.rb:83
          • SubstitutionContext#substitute! $GemPath0/gems/rails-dom-testing-2.0.2/lib/rails/dom/testing/assertions/selector_assertions/substitution_context.rb:6
            • Kernel#dup $GemPath0/gems/rails-dom-testing-2.0.2/lib/rails/dom/testing/assertions/selector_assertions/substitution_context.rb:7
              • Kernel#initialize_dup $GemPath0/gems/rails-dom-testing-2.0.2/lib/rails/dom/testing/assertions/selector_assertions/substitution_context.rb:7
                • String#initialize_copy $GemPath0/gems/rails-dom-testing-2.0.2/lib/rails/dom/testing/assertions/selector_assertions/substitution_context.rb:7
            • Array#first $GemPath0/gems/rails-dom-testing-2.0.2/lib/rails/dom/testing/assertions/selector_assertions/substitution_context.rb:9
            • SubstitutionContext#substitutable? $GemPath0/gems/rails-dom-testing-2.0.2/lib/rails/dom/testing/assertions/selector_assertions/substitution_context.rb:30
              • Kernel#is_a? $GemPath0/gems/rails-dom-testing-2.0.2/lib/rails/dom/testing/assertions/selector_assertions/substitution_context.rb:31
              • Kernel#is_a? $GemPath0/gems/rails-dom-testing-2.0.2/lib/rails/dom/testing/assertions/selector_assertions/substitution_context.rb:31
            • String#index $GemPath0/gems/rails-dom-testing-2.0.2/lib/rails/dom/testing/assertions/selector_assertions/substitution_context.rb:9
          • HTMLSelector#context $GemPath0/gems/activesupport-5.0.2/lib/active_support/core_ext/module/attribute_accessors.rb:67
          • SubstitutionContext#substitute! $GemPath0/gems/rails-dom-testing-2.0.2/lib/rails/dom/testing/assertions/selector_assertions/substitution_context.rb:6
            • Kernel#dup $GemPath0/gems/rails-dom-testing-2.0.2/lib/rails/dom/testing/assertions/selector_assertions/substitution_context.rb:7
              • Kernel#initialize_dup $GemPath0/gems/rails-dom-testing-2.0.2/lib/rails/dom/testing/assertions/selector_assertions/substitution_context.rb:7
                • String#initialize_copy $GemPath0/gems/rails-dom-testing-2.0.2/lib/rails/dom/testing/assertions/selector_assertions/substitution_context.rb:7
            • Array#first $GemPath0/gems/rails-dom-testing-2.0.2/lib/rails/dom/testing/assertions/selector_assertions/substitution_context.rb:9
            • SubstitutionContext#substitutable? $GemPath0/gems/rails-dom-testing-2.0.2/lib/rails/dom/testing/assertions/selector_assertions/substitution_context.rb:30
              • Kernel#is_a? $GemPath0/gems/rails-dom-testing-2.0.2/lib/rails/dom/testing/assertions/selector_assertions/substitution_context.rb:31
              • Kernel#is_a? $GemPath0/gems/rails-dom-testing-2.0.2/lib/rails/dom/testing/assertions/selector_assertions/substitution_context.rb:31
            • String#index $GemPath0/gems/rails-dom-testing-2.0.2/lib/rails/dom/testing/assertions/selector_assertions/substitution_context.rb:9
        • HTMLSelector#extract_equality_tests $GemPath0/gems/rails-dom-testing-2.0.2/lib/rails/dom/testing/assertions/selector_assertions/html_selector.rb:87
          • Array#shift $GemPath0/gems/rails-dom-testing-2.0.2/lib/rails/dom/testing/assertions/selector_assertions/html_selector.rb:89
          • Module#=== $GemPath0/gems/rails-dom-testing-2.0.2/lib/rails/dom/testing/assertions/selector_assertions/html_selector.rb:90
          • Module#=== $GemPath0/gems/rails-dom-testing-2.0.2/lib/rails/dom/testing/assertions/selector_assertions/html_selector.rb:92
          • Module#=== $GemPath0/gems/rails-dom-testing-2.0.2/lib/rails/dom/testing/assertions/selector_assertions/html_selector.rb:92
        • Array#shift $GemPath0/gems/rails-dom-testing-2.0.2/lib/rails/dom/testing/assertions/selector_assertions/html_selector.rb:12
        • Array#shift $GemPath0/gems/rails-dom-testing-2.0.2/lib/rails/dom/testing/assertions/selector_assertions/html_selector.rb:14
    • HTMLSelector#selecting_no_body? $GemPath0/gems/rails-dom-testing-2.0.2/lib/rails/dom/testing/assertions/selector_assertions/html_selector.rb:19
    • HTMLSelector#select $GemPath0/gems/rails-dom-testing-2.0.2/lib/rails/dom/testing/assertions/selector_assertions/html_selector.rb:25
      • HTMLSelector#context $GemPath0/gems/activesupport-5.0.2/lib/active_support/core_ext/module/attribute_accessors.rb:67
      • Nokogiri::XML::NodeSet#css $GemPath0/gems/nokogiri-1.7.1/lib/nokogiri/xml/node_set.rb:72
        • Nokogiri::XML::NodeSet#extract_params $GemPath0/gems/nokogiri-1.7.1/lib/nokogiri/xml/searchable.rb:202
          • Enumerable#find $GemPath0/gems/nokogiri-1.7.1/lib/nokogiri/xml/searchable.rb:203
            • Array#each $GemPath0/gems/nokogiri-1.7.1/lib/nokogiri/xml/searchable.rb:203
              • Nokogiri::XML::NodeSet#block in extract_params $GemPath0/gems/nokogiri-1.7.1/lib/nokogiri/xml/searchable.rb:203
                • Kernel#class $GemPath0/gems/nokogiri-1.7.1/lib/nokogiri/xml/searchable.rb:204
                • Array#include? $GemPath0/gems/nokogiri-1.7.1/lib/nokogiri/xml/searchable.rb:204
              • Nokogiri::XML::NodeSet#block in extract_params $GemPath0/gems/nokogiri-1.7.1/lib/nokogiri/xml/searchable.rb:203
                • Kernel#class $GemPath0/gems/nokogiri-1.7.1/lib/nokogiri/xml/searchable.rb:204
                • Array#include? $GemPath0/gems/nokogiri-1.7.1/lib/nokogiri/xml/searchable.rb:204
          • Array#- $GemPath0/gems/nokogiri-1.7.1/lib/nokogiri/xml/searchable.rb:206
            • Kernel#hash $GemPath0/gems/nokogiri-1.7.1/lib/nokogiri/xml/searchable.rb:206
            • Kernel#hash $GemPath0/gems/nokogiri-1.7.1/lib/nokogiri/xml/searchable.rb:206
          • Array#last $GemPath0/gems/nokogiri-1.7.1/lib/nokogiri/xml/searchable.rb:209
          • Module#=== $GemPath0/gems/nokogiri-1.7.1/lib/nokogiri/xml/searchable.rb:209
          • Array#last $GemPath0/gems/nokogiri-1.7.1/lib/nokogiri/xml/searchable.rb:209
          • Kernel#nil? $GemPath0/gems/nokogiri-1.7.1/lib/nokogiri/xml/searchable.rb:209
          • Array#reverse $GemPath0/gems/nokogiri-1.7.1/lib/nokogiri/xml/searchable.rb:213
          • Nokogiri::XML::Document#root $GemPath0/gems/nokogiri-1.7.1/lib/nokogiri/xml/searchable.rb:215
          • Nokogiri::XML::Document#root $GemPath0/gems/nokogiri-1.7.1/lib/nokogiri/xml/searchable.rb:215
          • Nokogiri::XML::Element#namespaces $GemPath0/gems/nokogiri-1.7.1/lib/nokogiri/xml/node.rb:440
            • Nokogiri::XML::Node#namespace_scopes $GemPath0/gems/nokogiri-1.7.1/lib/nokogiri/xml/node.rb:441
            • Array#map $GemPath0/gems/nokogiri-1.7.1/lib/nokogiri/xml/node.rb:441
            • #<Class:Hash>#[] $GemPath0/gems/nokogiri-1.7.1/lib/nokogiri/xml/node.rb:441
        • Class#new $GemPath0/gems/nokogiri-1.7.1/lib/nokogiri/xml/node_set.rb:75
          • Nokogiri::XML::NodeSet#initialize $GemPath0/gems/nokogiri-1.7.1/lib/nokogiri/xml/node_set.rb:15
            • Nokogiri::HTML::Document#decorate $GemPath0/gems/nokogiri-1.7.1/lib/nokogiri/xml/document.rb:214
            • Array#each $GemPath0/gems/nokogiri-1.7.1/lib/nokogiri/xml/node_set.rb:18
            • Kernel#block_given? $GemPath0/gems/nokogiri-1.7.1/lib/nokogiri/xml/node_set.rb:19
        • Enumerable#inject $GemPath0/gems/nokogiri-1.7.1/lib/nokogiri/xml/node_set.rb:75
          • Nokogiri::XML::NodeSet#each $GemPath0/gems/nokogiri-1.7.1/lib/nokogiri/xml/node_set.rb:185
            • Nokogiri::XML::NodeSet#length $GemPath0/gems/nokogiri-1.7.1/lib/nokogiri/xml/node_set.rb:186
            • Integer#upto $GemPath0/gems/nokogiri-1.7.1/lib/nokogiri/xml/node_set.rb:186
              • Nokogiri::XML::NodeSet#block in each $GemPath0/gems/nokogiri-1.7.1/lib/nokogiri/xml/node_set.rb:186
                • Nokogiri::XML::NodeSet#[] $GemPath0/gems/nokogiri-1.7.1/lib/nokogiri/xml/node_set.rb:187
                • Nokogiri::XML::NodeSet#block in css $GemPath0/gems/nokogiri-1.7.1/lib/nokogiri/xml/node_set.rb:75
                  • Nokogiri::XML::NodeSet#css_internal $GemPath0/gems/nokogiri-1.7.1/lib/nokogiri/xml/searchable.rb:191
                    • Array#map $GemPath0/gems/nokogiri-1.7.1/lib/nokogiri/xml/searchable.rb:192
                      • Nokogiri::XML::NodeSet#block in css_internal $GemPath0/gems/nokogiri-1.7.1/lib/nokogiri/xml/searchable.rb:192
                        • Nokogiri::XML::NodeSet#xpath_query_from_css_rule $GemPath0/gems/nokogiri-1.7.1/lib/nokogiri/xml/searchable.rb:196
                          • Nokogiri::XML::NodeSet#implied_xpath_contexts $GemPath0/gems/nokogiri-1.7.1/lib/nokogiri/xml/node_set.rb:317
                          • Array#map $GemPath0/gems/nokogiri-1.7.1/lib/nokogiri/xml/searchable.rb:197
                            • Nokogiri::XML::NodeSet#block in xpath_query_from_css_rule $GemPath0/gems/nokogiri-1.7.1/lib/nokogiri/xml/searchable.rb:197
                              • String#to_s $GemPath0/gems/nokogiri-1.7.1/lib/nokogiri/xml/searchable.rb:198
                              • Nokogiri::CSS.xpath_for $GemPath0/gems/nokogiri-1.7.1/lib/nokogiri/css.rb:22
                                • Class#new $GemPath0/gems/nokogiri-1.7.1/lib/nokogiri/css.rb:23
                                  • Nokogiri::CSS::Parser#initialize $GemPath0/gems/nokogiri-1.7.1/lib/nokogiri/css/parser_extras.rb:54
                                    • Class#new $GemPath0/gems/nokogiri-1.7.1/lib/nokogiri/css/parser_extras.rb:55
                                      • BasicObject#initialize $GemPath0/gems/nokogiri-1.7.1/lib/nokogiri/css/parser_extras.rb:55
                                    • BasicObject#initialize $GemPath0/gems/nokogiri-1.7.1/lib/nokogiri/css/parser_extras.rb:57
                                • Nokogiri::CSS::Parser#xpath_for $GemPath0/gems/nokogiri-1.7.1/lib/nokogiri/css/parser_extras.rb:70
                                  • Hash#inspect $GemPath0/gems/nokogiri-1.7.1/lib/nokogiri/css/parser_extras.rb:71
                                  • Kernel#class $GemPath0/gems/nokogiri-1.7.1/lib/nokogiri/css/parser_extras.rb:72
                                  • Nokogiri::CSS::Parser.[] $GemPath0/gems/nokogiri-1.7.1/lib/nokogiri/css/parser_extras.rb:17
                                    • Thread::Mutex#synchronize $GemPath0/gems/nokogiri-1.7.1/lib/nokogiri/css/parser_extras.rb:19
                                      • Nokogiri::CSS::Parser.block in [] $GemPath0/gems/nokogiri-1.7.1/lib/nokogiri/css/parser_extras.rb:19
                                  • Class#new $GemPath0/gems/nokogiri-1.7.1/lib/nokogiri/css/parser_extras.rb:77
                                    • BasicObject#initialize $GemPath0/gems/nokogiri-1.7.1/lib/nokogiri/css/parser_extras.rb:77
                                  • Kernel#class $GemPath0/gems/nokogiri-1.7.1/lib/nokogiri/css/parser_extras.rb:79
                                  • Nokogiri::CSS::Parser#parse $GemPath0/gems/nokogiri-1.7.1/lib/nokogiri/css/parser_extras.rb:60
                                    • Nokogiri::CSS::Tokenizer#scan_setup $GemPath0/gems/nokogiri-1.7.1/lib/nokogiri/css/tokenizer.rb:18
                                      • Class#new $GemPath0/gems/nokogiri-1.7.1/lib/nokogiri/css/tokenizer.rb:19
                                        • StringScanner#initialize $GemPath0/gems/nokogiri-1.7.1/lib/nokogiri/css/tokenizer.rb:19
                                    • Nokogiri::CSS::Parser#do_parse /home/z/.rbenv/versions/2.4.0/lib/ruby/2.4.0/racc/parser.rb:258
                                      • Nokogiri::CSS::Parser#_racc_setup /home/z/.rbenv/versions/2.4.0/lib/ruby/2.4.0/racc/parser.rb:217
                                        • Kernel#class /home/z/.rbenv/versions/2.4.0/lib/ruby/2.4.0/racc/parser.rb:218
                                        • Kernel#class /home/z/.rbenv/versions/2.4.0/lib/ruby/2.4.0/racc/parser.rb:224
                                      • Racc::Parser#_racc_do_parse_c /home/z/.rbenv/versions/2.4.0/lib/ruby/2.4.0/racc/parser.rb:259
                                        • Nokogiri::CSS::Parser#next_token $GemPath0/gems/nokogiri-1.7.1/lib/nokogiri/css/parser_extras.rb:65
                                          • Nokogiri::CSS::Tokenizer#next_token $GemPath0/gems/nokogiri-1.7.1/lib/nokogiri/css/tokenizer.rb:47
                                            • StringScanner#eos? $GemPath0/gems/nokogiri-1.7.1/lib/nokogiri/css/tokenizer.rb:48
                                            • Nokogiri::CSS::Tokenizer#_next_token $GemPath0/gems/nokogiri-1.7.1/lib/nokogiri/css/tokenizer.rb:55
                                              • StringScanner#peek $GemPath0/gems/nokogiri-1.7.1/lib/nokogiri/css/tokenizer.rb:56
                                              • StringScanner#scan $GemPath0/gems/nokogiri-1.7.1/lib/nokogiri/css/tokenizer.rb:61
                                              • StringScanner#scan $GemPath0/gems/nokogiri-1.7.1/lib/nokogiri/css/tokenizer.rb:64
                                              • StringScanner#scan $GemPath0/gems/nokogiri-1.7.1/lib/nokogiri/css/tokenizer.rb:67
                                              • StringScanner#scan $GemPath0/gems/nokogiri-1.7.1/lib/nokogiri/css/tokenizer.rb:70
                                              • StringScanner#scan $GemPath0/gems/nokogiri-1.7.1/lib/nokogiri/css/tokenizer.rb:73
                                              • StringScanner#scan $GemPath0/gems/nokogiri-1.7.1/lib/nokogiri/css/tokenizer.rb:76
                                              • StringScanner#scan $GemPath0/gems/nokogiri-1.7.1/lib/nokogiri/css/tokenizer.rb:79
                                              • StringScanner#scan $GemPath0/gems/nokogiri-1.7.1/lib/nokogiri/css/tokenizer.rb:82
                                              • StringScanner#scan $GemPath0/gems/nokogiri-1.7.1/lib/nokogiri/css/tokenizer.rb:85
                                              • StringScanner#scan $GemPath0/gems/nokogiri-1.7.1/lib/nokogiri/css/tokenizer.rb:88
                                              • StringScanner#scan $GemPath0/gems/nokogiri-1.7.1/lib/nokogiri/css/tokenizer.rb:91
                                              • StringScanner#scan $GemPath0/gems/nokogiri-1.7.1/lib/nokogiri/css/tokenizer.rb:94
                                              • StringScanner#scan $GemPath0/gems/nokogiri-1.7.1/lib/nokogiri/css/tokenizer.rb:97
                                              • StringScanner#scan $GemPath0/gems/nokogiri-1.7.1/lib/nokogiri/css/tokenizer.rb:100
                                              • StringScanner#scan $GemPath0/gems/nokogiri-1.7.1/lib/nokogiri/css/tokenizer.rb:103
                                              • StringScanner#scan $GemPath0/gems/nokogiri-1.7.1/lib/nokogiri/css/tokenizer.rb:106
                                              • StringScanner#scan $GemPath0/gems/nokogiri-1.7.1/lib/nokogiri/css/tokenizer.rb:109
                                              • StringScanner#scan $GemPath0/gems/nokogiri-1.7.1/lib/nokogiri/css/tokenizer.rb:112
                                              • StringScanner#scan $GemPath0/gems/nokogiri-1.7.1/lib/nokogiri/css/tokenizer.rb:115
                                              • StringScanner#scan $GemPath0/gems/nokogiri-1.7.1/lib/nokogiri/css/tokenizer.rb:118
                                              • StringScanner#scan $GemPath0/gems/nokogiri-1.7.1/lib/nokogiri/css/tokenizer.rb:121
                                              • StringScanner#scan $GemPath0/gems/nokogiri-1.7.1/lib/nokogiri/css/tokenizer.rb:124
                                              • StringScanner#scan $GemPath0/gems/nokogiri-1.7.1/lib/nokogiri/css/tokenizer.rb:127
                                              • StringScanner#scan $GemPath0/gems/nokogiri-1.7.1/lib/nokogiri/css/tokenizer.rb:130
                                              • StringScanner#scan $GemPath0/gems/nokogiri-1.7.1/lib/nokogiri/css/tokenizer.rb:133
                                              • StringScanner#scan $GemPath0/gems/nokogiri-1.7.1/lib/nokogiri/css/tokenizer.rb:136
                                              • Nokogiri::CSS::Tokenizer#action $GemPath0/gems/nokogiri-1.7.1/lib/nokogiri/css/tokenizer.rb:24
                                                • Nokogiri::CSS::Tokenizer#block in _next_token $GemPath0/gems/nokogiri-1.7.1/lib/nokogiri/css/tokenizer.rb:137
                                        • Nokogiri::CSS::Parser#next_token $GemPath0/gems/nokogiri-1.7.1/lib/nokogiri/css/parser_extras.rb:65
                                          • Nokogiri::CSS::Tokenizer#next_token $GemPath0/gems/nokogiri-1.7.1/lib/nokogiri/css/tokenizer.rb:47
                                            • StringScanner#eos? $GemPath0/gems/nokogiri-1.7.1/lib/nokogiri/css/tokenizer.rb:48
                                            • Nokogiri::CSS::Tokenizer#_next_token $GemPath0/gems/nokogiri-1.7.1/lib/nokogiri/css/tokenizer.rb:55
                                              • StringScanner#peek $GemPath0/gems/nokogiri-1.7.1/lib/nokogiri/css/tokenizer.rb:56
                                              • StringScanner#scan $GemPath0/gems/nokogiri-1.7.1/lib/nokogiri/css/tokenizer.rb:61
                                              • StringScanner#scan $GemPath0/gems/nokogiri-1.7.1/lib/nokogiri/css/tokenizer.rb:64
                                              • StringScanner#scan $GemPath0/gems/nokogiri-1.7.1/lib/nokogiri/css/tokenizer.rb:67
                                              • Nokogiri::CSS::Tokenizer#action $GemPath0/gems/nokogiri-1.7.1/lib/nokogiri/css/tokenizer.rb:24
                                                • Nokogiri::CSS::Tokenizer#block in _next_token $GemPath0/gems/nokogiri-1.7.1/lib/nokogiri/css/tokenizer.rb:68
                                        • Nokogiri::CSS::Parser#_reduce_18 $GemPath0/gems/nokogiri-1.7.1/lib/nokogiri/css/parser.rb:414
                                          • Nokogiri::CSS::Parser#unescape_css_identifier $GemPath0/gems/nokogiri-1.7.1/lib/nokogiri/css/parser.rb:17
                                            • String#gsub $GemPath0/gems/nokogiri-1.7.1/lib/nokogiri/css/parser.rb:18
                                          • Class#new $GemPath0/gems/nokogiri-1.7.1/lib/nokogiri/css/parser.rb:415
                                            • Nokogiri::CSS::Node#initialize $GemPath0/gems/nokogiri-1.7.1/lib/nokogiri/css/node.rb:12
                                        • Nokogiri::CSS::Parser#next_token $GemPath0/gems/nokogiri-1.7.1/lib/nokogiri/css/parser_extras.rb:65
                                          • Nokogiri::CSS::Tokenizer#next_token $GemPath0/gems/nokogiri-1.7.1/lib/nokogiri/css/tokenizer.rb:47
                                            • StringScanner#eos? $GemPath0/gems/nokogiri-1.7.1/lib/nokogiri/css/tokenizer.rb:48
                                        • Nokogiri::CSS::Parser#_reduce_13 $GemPath0/gems/nokogiri-1.7.1/lib/nokogiri/css/parser.rb:386
                                          • Class#new $GemPath0/gems/nokogiri-1.7.1/lib/nokogiri/css/parser.rb:388
                                            • Nokogiri::CSS::Node#initialize $GemPath0/gems/nokogiri-1.7.1/lib/nokogiri/css/node.rb:12
                                          • Array#first $GemPath0/gems/nokogiri-1.7.1/lib/nokogiri/css/parser.rb:388
                                          • Class#new $GemPath0/gems/nokogiri-1.7.1/lib/nokogiri/css/parser.rb:387
                                            • Nokogiri::CSS::Node#initialize $GemPath0/gems/nokogiri-1.7.1/lib/nokogiri/css/node.rb:12
                                        • Nokogiri::CSS::Parser#_reduce_3 $GemPath0/gems/nokogiri-1.7.1/lib/nokogiri/css/parser.rb:332
                                          • Array#last $GemPath0/gems/nokogiri-1.7.1/lib/nokogiri/css/parser.rb:333
                                          • Array#flatten $GemPath0/gems/nokogiri-1.7.1/lib/nokogiri/css/parser.rb:333
                                  • Array#map $GemPath0/gems/nokogiri-1.7.1/lib/nokogiri/css/parser_extras.rb:79
                                    • Nokogiri::CSS::Parser#block in xpath_for $GemPath0/gems/nokogiri-1.7.1/lib/nokogiri/css/parser_extras.rb:79
                                      • Nokogiri::CSS::Node#to_xpath $GemPath0/gems/nokogiri-1.7.1/lib/nokogiri/css/node.rb:24
                                        • Array#include? $GemPath0/gems/nokogiri-1.7.1/lib/nokogiri/css/node.rb:25
                                        • Nokogiri::CSS::XPathVisitor#accept $GemPath0/gems/nokogiri-1.7.1/lib/nokogiri/css/xpath_visitor.rb:171
                                          • Nokogiri::CSS::Node#accept $GemPath0/gems/nokogiri-1.7.1/lib/nokogiri/css/node.rb:18
                                            • Symbol#to_s $GemPath0/gems/nokogiri-1.7.1/lib/nokogiri/css/node.rb:19
                                            • String#downcase $GemPath0/gems/nokogiri-1.7.1/lib/nokogiri/css/node.rb:19
                                            • String#intern $GemPath0/gems/nokogiri-1.7.1/lib/nokogiri/css/node.rb:19
                                            • Nokogiri::CSS::XPathVisitor#visit_conditional_selector $GemPath0/gems/nokogiri-1.7.1/lib/nokogiri/css/xpath_visitor.rb:162
                                              • Array#first $GemPath0/gems/nokogiri-1.7.1/lib/nokogiri/css/xpath_visitor.rb:163
                                              • Nokogiri::CSS::Node#accept $GemPath0/gems/nokogiri-1.7.1/lib/nokogiri/css/node.rb:18
                                                • Symbol#to_s $GemPath0/gems/nokogiri-1.7.1/lib/nokogiri/css/node.rb:19
                                                • String#downcase $GemPath0/gems/nokogiri-1.7.1/lib/nokogiri/css/node.rb:19
                                                • String#intern $GemPath0/gems/nokogiri-1.7.1/lib/nokogiri/css/node.rb:19
                                                • Nokogiri::CSS::XPathVisitor#visit_element_name $GemPath0/gems/nokogiri-1.7.1/lib/nokogiri/css/xpath_visitor.rb:167
                                                  • Array#first $GemPath0/gems/nokogiri-1.7.1/lib/nokogiri/css/xpath_visitor.rb:168
                                              • Array#last $GemPath0/gems/nokogiri-1.7.1/lib/nokogiri/css/xpath_visitor.rb:164
                                              • Nokogiri::CSS::Node#accept $GemPath0/gems/nokogiri-1.7.1/lib/nokogiri/css/node.rb:18
                                                • Symbol#to_s $GemPath0/gems/nokogiri-1.7.1/lib/nokogiri/css/node.rb:19
                                                • String#downcase $GemPath0/gems/nokogiri-1.7.1/lib/nokogiri/css/node.rb:19
                                                • String#intern $GemPath0/gems/nokogiri-1.7.1/lib/nokogiri/css/node.rb:19
                                                • Nokogiri::CSS::XPathVisitor#visit_class_condition $GemPath0/gems/nokogiri-1.7.1/lib/nokogiri/css/xpath_visitor.rb:137
                                                  • Array#first $GemPath0/gems/nokogiri-1.7.1/lib/nokogiri/css/xpath_visitor.rb:138
                                  • Nokogiri::CSS::Parser.[]= $GemPath0/gems/nokogiri-1.7.1/lib/nokogiri/css/parser_extras.rb:23
                                    • Thread::Mutex#synchronize $GemPath0/gems/nokogiri-1.7.1/lib/nokogiri/css/parser_extras.rb:25
                                      • Nokogiri::CSS::Parser.block in []= $GemPath0/gems/nokogiri-1.7.1/lib/nokogiri/css/parser_extras.rb:25
                            • Nokogiri::XML::NodeSet#block in xpath_query_from_css_rule $GemPath0/gems/nokogiri-1.7.1/lib/nokogiri/xml/searchable.rb:197
                              • String#to_s $GemPath0/gems/nokogiri-1.7.1/lib/nokogiri/xml/searchable.rb:198
                              • Nokogiri::CSS.xpath_for $GemPath0/gems/nokogiri-1.7.1/lib/nokogiri/css.rb:22
                                • Class#new $GemPath0/gems/nokogiri-1.7.1/lib/nokogiri/css.rb:23
                                  • Nokogiri::CSS::Parser#initialize $GemPath0/gems/nokogiri-1.7.1/lib/nokogiri/css/parser_extras.rb:54
                                    • Class#new $GemPath0/gems/nokogiri-1.7.1/lib/nokogiri/css/parser_extras.rb:55
                                      • BasicObject#initialize $GemPath0/gems/nokogiri-1.7.1/lib/nokogiri/css/parser_extras.rb:55
                                    • BasicObject#initialize $GemPath0/gems/nokogiri-1.7.1/lib/nokogiri/css/parser_extras.rb:57
                                • Nokogiri::CSS::Parser#xpath_for $GemPath0/gems/nokogiri-1.7.1/lib/nokogiri/css/parser_extras.rb:70
                                  • Hash#inspect $GemPath0/gems/nokogiri-1.7.1/lib/nokogiri/css/parser_extras.rb:71
                                  • Kernel#class $GemPath0/gems/nokogiri-1.7.1/lib/nokogiri/css/parser_extras.rb:72
                                  • Nokogiri::CSS::Parser.[] $GemPath0/gems/nokogiri-1.7.1/lib/nokogiri/css/parser_extras.rb:17
                                    • Thread::Mutex#synchronize $GemPath0/gems/nokogiri-1.7.1/lib/nokogiri/css/parser_extras.rb:19
                                      • Nokogiri::CSS::Parser.block in [] $GemPath0/gems/nokogiri-1.7.1/lib/nokogiri/css/parser_extras.rb:19
                                  • Class#new $GemPath0/gems/nokogiri-1.7.1/lib/nokogiri/css/parser_extras.rb:77
                                    • BasicObject#initialize $GemPath0/gems/nokogiri-1.7.1/lib/nokogiri/css/parser_extras.rb:77
                                  • Kernel#class $GemPath0/gems/nokogiri-1.7.1/lib/nokogiri/css/parser_extras.rb:79
                                  • Nokogiri::CSS::Parser#parse $GemPath0/gems/nokogiri-1.7.1/lib/nokogiri/css/parser_extras.rb:60
                                    • Nokogiri::CSS::Tokenizer#scan_setup $GemPath0/gems/nokogiri-1.7.1/lib/nokogiri/css/tokenizer.rb:18
                                      • Class#new $GemPath0/gems/nokogiri-1.7.1/lib/nokogiri/css/tokenizer.rb:19
                                        • StringScanner#initialize $GemPath0/gems/nokogiri-1.7.1/lib/nokogiri/css/tokenizer.rb:19
                                    • Nokogiri::CSS::Parser#do_parse /home/z/.rbenv/versions/2.4.0/lib/ruby/2.4.0/racc/parser.rb:258
                                      • Nokogiri::CSS::Parser#_racc_setup /home/z/.rbenv/versions/2.4.0/lib/ruby/2.4.0/racc/parser.rb:217
                                        • Kernel#class /home/z/.rbenv/versions/2.4.0/lib/ruby/2.4.0/racc/parser.rb:218
                                        • Kernel#class /home/z/.rbenv/versions/2.4.0/lib/ruby/2.4.0/racc/parser.rb:224
                                      • Racc::Parser#_racc_do_parse_c /home/z/.rbenv/versions/2.4.0/lib/ruby/2.4.0/racc/parser.rb:259
                                        • Nokogiri::CSS::Parser#next_token $GemPath0/gems/nokogiri-1.7.1/lib/nokogiri/css/parser_extras.rb:65
                                          • Nokogiri::CSS::Tokenizer#next_token $GemPath0/gems/nokogiri-1.7.1/lib/nokogiri/css/tokenizer.rb:47
                                            • StringScanner#eos? $GemPath0/gems/nokogiri-1.7.1/lib/nokogiri/css/tokenizer.rb:48
                                            • Nokogiri::CSS::Tokenizer#_next_token $GemPath0/gems/nokogiri-1.7.1/lib/nokogiri/css/tokenizer.rb:55
                                              • StringScanner#peek $GemPath0/gems/nokogiri-1.7.1/lib/nokogiri/css/tokenizer.rb:56
                                              • StringScanner#scan $GemPath0/gems/nokogiri-1.7.1/lib/nokogiri/css/tokenizer.rb:61
                                              • StringScanner#scan $GemPath0/gems/nokogiri-1.7.1/lib/nokogiri/css/tokenizer.rb:64
                                              • StringScanner#scan $GemPath0/gems/nokogiri-1.7.1/lib/nokogiri/css/tokenizer.rb:67
                                              • StringScanner#scan $GemPath0/gems/nokogiri-1.7.1/lib/nokogiri/css/tokenizer.rb:70
                                              • StringScanner#scan $GemPath0/gems/nokogiri-1.7.1/lib/nokogiri/css/tokenizer.rb:73
                                              • StringScanner#scan $GemPath0/gems/nokogiri-1.7.1/lib/nokogiri/css/tokenizer.rb:76
                                              • StringScanner#scan $GemPath0/gems/nokogiri-1.7.1/lib/nokogiri/css/tokenizer.rb:79
                                              • StringScanner#scan $GemPath0/gems/nokogiri-1.7.1/lib/nokogiri/css/tokenizer.rb:82
                                              • StringScanner#scan $GemPath0/gems/nokogiri-1.7.1/lib/nokogiri/css/tokenizer.rb:85
                                              • StringScanner#scan $GemPath0/gems/nokogiri-1.7.1/lib/nokogiri/css/tokenizer.rb:88
                                              • StringScanner#scan $GemPath0/gems/nokogiri-1.7.1/lib/nokogiri/css/tokenizer.rb:91
                                              • StringScanner#scan $GemPath0/gems/nokogiri-1.7.1/lib/nokogiri/css/tokenizer.rb:94
                                              • StringScanner#scan $GemPath0/gems/nokogiri-1.7.1/lib/nokogiri/css/tokenizer.rb:97
                                              • StringScanner#scan $GemPath0/gems/nokogiri-1.7.1/lib/nokogiri/css/tokenizer.rb:100
                                              • StringScanner#scan $GemPath0/gems/nokogiri-1.7.1/lib/nokogiri/css/tokenizer.rb:103
                                              • StringScanner#scan $GemPath0/gems/nokogiri-1.7.1/lib/nokogiri/css/tokenizer.rb:106
                                              • StringScanner#scan $GemPath0/gems/nokogiri-1.7.1/lib/nokogiri/css/tokenizer.rb:109
                                              • StringScanner#scan $GemPath0/gems/nokogiri-1.7.1/lib/nokogiri/css/tokenizer.rb:112
                                              • StringScanner#scan $GemPath0/gems/nokogiri-1.7.1/lib/nokogiri/css/tokenizer.rb:115
                                              • StringScanner#scan $GemPath0/gems/nokogiri-1.7.1/lib/nokogiri/css/tokenizer.rb:118
                                              • StringScanner#scan $GemPath0/gems/nokogiri-1.7.1/lib/nokogiri/css/tokenizer.rb:121
                                              • StringScanner#scan $GemPath0/gems/nokogiri-1.7.1/lib/nokogiri/css/tokenizer.rb:124
                                              • StringScanner#scan $GemPath0/gems/nokogiri-1.7.1/lib/nokogiri/css/tokenizer.rb:127
                                              • StringScanner#scan $GemPath0/gems/nokogiri-1.7.1/lib/nokogiri/css/tokenizer.rb:130
                                              • StringScanner#scan $GemPath0/gems/nokogiri-1.7.1/lib/nokogiri/css/tokenizer.rb:133
                                              • StringScanner#scan $GemPath0/gems/nokogiri-1.7.1/lib/nokogiri/css/tokenizer.rb:136
                                              • Nokogiri::CSS::Tokenizer#action $GemPath0/gems/nokogiri-1.7.1/lib/nokogiri/css/tokenizer.rb:24
                                                • Nokogiri::CSS::Tokenizer#block in _next_token $GemPath0/gems/nokogiri-1.7.1/lib/nokogiri/css/tokenizer.rb:137
                                        • Nokogiri::CSS::Parser#next_token $GemPath0/gems/nokogiri-1.7.1/lib/nokogiri/css/parser_extras.rb:65
                                          • Nokogiri::CSS::Tokenizer#next_token $GemPath0/gems/nokogiri-1.7.1/lib/nokogiri/css/tokenizer.rb:47
                                            • StringScanner#eos? $GemPath0/gems/nokogiri-1.7.1/lib/nokogiri/css/tokenizer.rb:48
                                            • Nokogiri::CSS::Tokenizer#_next_token $GemPath0/gems/nokogiri-1.7.1/lib/nokogiri/css/tokenizer.rb:55
                                              • StringScanner#peek $GemPath0/gems/nokogiri-1.7.1/lib/nokogiri/css/tokenizer.rb:56
                                              • StringScanner#scan $GemPath0/gems/nokogiri-1.7.1/lib/nokogiri/css/tokenizer.rb:61
                                              • StringScanner#scan $GemPath0/gems/nokogiri-1.7.1/lib/nokogiri/css/tokenizer.rb:64
                                              • StringScanner#scan $GemPath0/gems/nokogiri-1.7.1/lib/nokogiri/css/tokenizer.rb:67
                                              • Nokogiri::CSS::Tokenizer#action $GemPath0/gems/nokogiri-1.7.1/lib/nokogiri/css/tokenizer.rb:24
                                                • Nokogiri::CSS::Tokenizer#block in _next_token $GemPath0/gems/nokogiri-1.7.1/lib/nokogiri/css/tokenizer.rb:68
                                        • Nokogiri::CSS::Parser#_reduce_18 $GemPath0/gems/nokogiri-1.7.1/lib/nokogiri/css/parser.rb:414
                                          • Nokogiri::CSS::Parser#unescape_css_identifier $GemPath0/gems/nokogiri-1.7.1/lib/nokogiri/css/parser.rb:17
                                            • String#gsub $GemPath0/gems/nokogiri-1.7.1/lib/nokogiri/css/parser.rb:18
                                          • Class#new $GemPath0/gems/nokogiri-1.7.1/lib/nokogiri/css/parser.rb:415
                                            • Nokogiri::CSS::Node#initialize $GemPath0/gems/nokogiri-1.7.1/lib/nokogiri/css/node.rb:12
                                        • Nokogiri::CSS::Parser#next_token $GemPath0/gems/nokogiri-1.7.1/lib/nokogiri/css/parser_extras.rb:65
                                          • Nokogiri::CSS::Tokenizer#next_token $GemPath0/gems/nokogiri-1.7.1/lib/nokogiri/css/tokenizer.rb:47
                                            • StringScanner#eos? $GemPath0/gems/nokogiri-1.7.1/lib/nokogiri/css/tokenizer.rb:48
                                        • Nokogiri::CSS::Parser#_reduce_13 $GemPath0/gems/nokogiri-1.7.1/lib/nokogiri/css/parser.rb:386
                                          • Class#new $GemPath0/gems/nokogiri-1.7.1/lib/nokogiri/css/parser.rb:388
                                            • Nokogiri::CSS::Node#initialize $GemPath0/gems/nokogiri-1.7.1/lib/nokogiri/css/node.rb:12
                                          • Array#first $GemPath0/gems/nokogiri-1.7.1/lib/nokogiri/css/parser.rb:388
                                          • Class#new $GemPath0/gems/nokogiri-1.7.1/lib/nokogiri/css/parser.rb:387
                                            • Nokogiri::CSS::Node#initialize $GemPath0/gems/nokogiri-1.7.1/lib/nokogiri/css/node.rb:12
                                        • Nokogiri::CSS::Parser#_reduce_3 $GemPath0/gems/nokogiri-1.7.1/lib/nokogiri/css/parser.rb:332
                                          • Array#last $GemPath0/gems/nokogiri-1.7.1/lib/nokogiri/css/parser.rb:333
                                          • Array#flatten $GemPath0/gems/nokogiri-1.7.1/lib/nokogiri/css/parser.rb:333
                                  • Array#map $GemPath0/gems/nokogiri-1.7.1/lib/nokogiri/css/parser_extras.rb:79
                                    • Nokogiri::CSS::Parser#block in xpath_for $GemPath0/gems/nokogiri-1.7.1/lib/nokogiri/css/parser_extras.rb:79
                                      • Nokogiri::CSS::Node#to_xpath $GemPath0/gems/nokogiri-1.7.1/lib/nokogiri/css/node.rb:24
                                        • Array#include? $GemPath0/gems/nokogiri-1.7.1/lib/nokogiri/css/node.rb:25
                                        • Nokogiri::CSS::XPathVisitor#accept $GemPath0/gems/nokogiri-1.7.1/lib/nokogiri/css/xpath_visitor.rb:171
                                          • Nokogiri::CSS::Node#accept $GemPath0/gems/nokogiri-1.7.1/lib/nokogiri/css/node.rb:18
                                            • Symbol#to_s $GemPath0/gems/nokogiri-1.7.1/lib/nokogiri/css/node.rb:19
                                            • String#downcase $GemPath0/gems/nokogiri-1.7.1/lib/nokogiri/css/node.rb:19
                                            • String#intern $GemPath0/gems/nokogiri-1.7.1/lib/nokogiri/css/node.rb:19
                                            • Nokogiri::CSS::XPathVisitor#visit_conditional_selector $GemPath0/gems/nokogiri-1.7.1/lib/nokogiri/css/xpath_visitor.rb:162
                                              • Array#first $GemPath0/gems/nokogiri-1.7.1/lib/nokogiri/css/xpath_visitor.rb:163
                                              • Nokogiri::CSS::Node#accept $GemPath0/gems/nokogiri-1.7.1/lib/nokogiri/css/node.rb:18
                                                • Symbol#to_s $GemPath0/gems/nokogiri-1.7.1/lib/nokogiri/css/node.rb:19
                                                • String#downcase $GemPath0/gems/nokogiri-1.7.1/lib/nokogiri/css/node.rb:19
                                                • String#intern $GemPath0/gems/nokogiri-1.7.1/lib/nokogiri/css/node.rb:19
                                                • Nokogiri::CSS::XPathVisitor#visit_element_name $GemPath0/gems/nokogiri-1.7.1/lib/nokogiri/css/xpath_visitor.rb:167
                                                  • Array#first $GemPath0/gems/nokogiri-1.7.1/lib/nokogiri/css/xpath_visitor.rb:168
                                              • Array#last $GemPath0/gems/nokogiri-1.7.1/lib/nokogiri/css/xpath_visitor.rb:164
                                              • Nokogiri::CSS::Node#accept $GemPath0/gems/nokogiri-1.7.1/lib/nokogiri/css/node.rb:18
                                                • Symbol#to_s $GemPath0/gems/nokogiri-1.7.1/lib/nokogiri/css/node.rb:19
                                                • String#downcase $GemPath0/gems/nokogiri-1.7.1/lib/nokogiri/css/node.rb:19
                                                • String#intern $GemPath0/gems/nokogiri-1.7.1/lib/nokogiri/css/node.rb:19
                                                • Nokogiri::CSS::XPathVisitor#visit_class_condition $GemPath0/gems/nokogiri-1.7.1/lib/nokogiri/css/xpath_visitor.rb:137
                                                  • Array#first $GemPath0/gems/nokogiri-1.7.1/lib/nokogiri/css/xpath_visitor.rb:138
                                  • Nokogiri::CSS::Parser.[]= $GemPath0/gems/nokogiri-1.7.1/lib/nokogiri/css/parser_extras.rb:23
                                    • Thread::Mutex#synchronize $GemPath0/gems/nokogiri-1.7.1/lib/nokogiri/css/parser_extras.rb:25
                                      • Nokogiri::CSS::Parser.block in []= $GemPath0/gems/nokogiri-1.7.1/lib/nokogiri/css/parser_extras.rb:25
                          • Array#join $GemPath0/gems/nokogiri-1.7.1/lib/nokogiri/xml/searchable.rb:199
                    • Array#compact $GemPath0/gems/nokogiri-1.7.1/lib/nokogiri/xml/searchable.rb:193
                    • Nokogiri::XML::Element#xpath $GemPath0/gems/nokogiri-1.7.1/lib/nokogiri/xml/searchable.rb:151
                      • Nokogiri::XML::Node#document $GemPath0/gems/nokogiri-1.7.1/lib/nokogiri/xml/searchable.rb:152
                      • Nokogiri::XML::Element#extract_params $GemPath0/gems/nokogiri-1.7.1/lib/nokogiri/xml/searchable.rb:202
                        • Enumerable#find $GemPath0/gems/nokogiri-1.7.1/lib/nokogiri/xml/searchable.rb:203
                          • Array#each $GemPath0/gems/nokogiri-1.7.1/lib/nokogiri/xml/searchable.rb:203
                            • Nokogiri::XML::Element#block in extract_params $GemPath0/gems/nokogiri-1.7.1/lib/nokogiri/xml/searchable.rb:203
                              • Kernel#class $GemPath0/gems/nokogiri-1.7.1/lib/nokogiri/xml/searchable.rb:204
                              • Array#include? $GemPath0/gems/nokogiri-1.7.1/lib/nokogiri/xml/searchable.rb:204
                            • Nokogiri::XML::Element#block in extract_params $GemPath0/gems/nokogiri-1.7.1/lib/nokogiri/xml/searchable.rb:203
                              • Kernel#class $GemPath0/gems/nokogiri-1.7.1/lib/nokogiri/xml/searchable.rb:204
                              • Array#include? $GemPath0/gems/nokogiri-1.7.1/lib/nokogiri/xml/searchable.rb:204
                            • Nokogiri::XML::Element#block in extract_params $GemPath0/gems/nokogiri-1.7.1/lib/nokogiri/xml/searchable.rb:203
                              • Kernel#class $GemPath0/gems/nokogiri-1.7.1/lib/nokogiri/xml/searchable.rb:204
                              • Array#include? $GemPath0/gems/nokogiri-1.7.1/lib/nokogiri/xml/searchable.rb:204
                        • Array#- $GemPath0/gems/nokogiri-1.7.1/lib/nokogiri/xml/searchable.rb:206
                          • Kernel#hash $GemPath0/gems/nokogiri-1.7.1/lib/nokogiri/xml/searchable.rb:206
                          • Hash#hash $GemPath0/gems/nokogiri-1.7.1/lib/nokogiri/xml/searchable.rb:206
                          • Kernel#hash $GemPath0/gems/nokogiri-1.7.1/lib/nokogiri/xml/searchable.rb:206
                        • Array#last $GemPath0/gems/nokogiri-1.7.1/lib/nokogiri/xml/searchable.rb:209
                        • Module#=== $GemPath0/gems/nokogiri-1.7.1/lib/nokogiri/xml/searchable.rb:209
                        • Array#pop $GemPath0/gems/nokogiri-1.7.1/lib/nokogiri/xml/searchable.rb:210
                        • Array#last $GemPath0/gems/nokogiri-1.7.1/lib/nokogiri/xml/searchable.rb:209
                        • Module#=== $GemPath0/gems/nokogiri-1.7.1/lib/nokogiri/xml/searchable.rb:209
                        • Array#last $GemPath0/gems/nokogiri-1.7.1/lib/nokogiri/xml/searchable.rb:209
                        • Kernel#nil? $GemPath0/gems/nokogiri-1.7.1/lib/nokogiri/xml/searchable.rb:209
                        • Array#reverse $GemPath0/gems/nokogiri-1.7.1/lib/nokogiri/xml/searchable.rb:213
                      • Array#map $GemPath0/gems/nokogiri-1.7.1/lib/nokogiri/xml/searchable.rb:156
                        • Nokogiri::XML::Element#block in xpath $GemPath0/gems/nokogiri-1.7.1/lib/nokogiri/xml/searchable.rb:156
                          • #<Class:Nokogiri::XML::XPathContext>#new $GemPath0/gems/nokogiri-1.7.1/lib/nokogiri/xml/searchable.rb:157
                          • Nokogiri::XML::XPathContext#register_namespaces $GemPath0/gems/nokogiri-1.7.1/lib/nokogiri/xml/xpath_context.rb:7
                            • Hash#each $GemPath0/gems/nokogiri-1.7.1/lib/nokogiri/xml/xpath_context.rb:8
                          • Nokogiri.uses_libxml? $GemPath0/gems/nokogiri-1.7.1/lib/nokogiri/version.rb:101
                            • Nokogiri::VersionInfo.instance $GemPath0/gems/nokogiri-1.7.1/lib/nokogiri/version.rb:95
                            • Nokogiri::VersionInfo#libxml2? $GemPath0/gems/nokogiri-1.7.1/lib/nokogiri/version.rb:24
                          • Nokogiri::XML::XPathContext#evaluate $GemPath0/gems/nokogiri-1.7.1/lib/nokogiri/xml/searchable.rb:165
                            • Nokogiri::HTML::Document#decorate $GemPath0/gems/nokogiri-1.7.1/lib/nokogiri/xml/document.rb:214
                      • Array#first $GemPath0/gems/nokogiri-1.7.1/lib/nokogiri/xml/searchable.rb:167
                  • Nokogiri::XML::NodeSet#| $GemPath0/gems/nokogiri-1.7.1/lib/nokogiri/xml/node_set.rb:76
                    • Nokogiri::HTML::Document#decorate $GemPath0/gems/nokogiri-1.7.1/lib/nokogiri/xml/document.rb:214
      • HTMLSelector#filter $GemPath0/gems/rails-dom-testing-2.0.2/lib/rails/dom/testing/assertions/selector_assertions/html_selector.rb:35
        • Nokogiri::XML::NodeSet#empty? $GemPath0/gems/nokogiri-1.7.1/lib/nokogiri/xml/node_set.rb:39
          • Nokogiri::XML::NodeSet#length $GemPath0/gems/nokogiri-1.7.1/lib/nokogiri/xml/node_set.rb:40
        • Hash#has_key? $GemPath0/gems/rails-dom-testing-2.0.2/lib/rails/dom/testing/assertions/selector_assertions/html_selector.rb:40
        • Kernel#is_a? $GemPath0/gems/rails-dom-testing-2.0.2/lib/rails/dom/testing/assertions/selector_assertions/html_selector.rb:41
        • Enumerable#reject $GemPath0/gems/rails-dom-testing-2.0.2/lib/rails/dom/testing/assertions/selector_assertions/html_selector.rb:43
          • Nokogiri::XML::NodeSet#each $GemPath0/gems/nokogiri-1.7.1/lib/nokogiri/xml/node_set.rb:185
            • Nokogiri::XML::NodeSet#length $GemPath0/gems/nokogiri-1.7.1/lib/nokogiri/xml/node_set.rb:186
            • Integer#upto $GemPath0/gems/nokogiri-1.7.1/lib/nokogiri/xml/node_set.rb:186
              • Nokogiri::XML::NodeSet#block in each $GemPath0/gems/nokogiri-1.7.1/lib/nokogiri/xml/node_set.rb:186
                • Nokogiri::XML::NodeSet#[] $GemPath0/gems/nokogiri-1.7.1/lib/nokogiri/xml/node_set.rb:187
                  • Nokogiri::HTML::Document#decorate $GemPath0/gems/nokogiri-1.7.1/lib/nokogiri/xml/document.rb:214
                • HTMLSelector#block in filter $GemPath0/gems/rails-dom-testing-2.0.2/lib/rails/dom/testing/assertions/selector_assertions/html_selector.rb:43
                  • Nokogiri::XML::Node#content $GemPath0/gems/rails-dom-testing-2.0.2/lib/rails/dom/testing/assertions/selector_assertions/html_selector.rb:45
                  • Nokogiri::XML::Node#node_name $GemPath0/gems/rails-dom-testing-2.0.2/lib/rails/dom/testing/assertions/selector_assertions/html_selector.rb:47
                  • Array#include? $GemPath0/gems/rails-dom-testing-2.0.2/lib/rails/dom/testing/assertions/selector_assertions/html_selector.rb:47
                  • String#strip! $GemPath0/gems/rails-dom-testing-2.0.2/lib/rails/dom/testing/assertions/selector_assertions/html_selector.rb:47
                  • Nokogiri::XML::Node#node_name $GemPath0/gems/rails-dom-testing-2.0.2/lib/rails/dom/testing/assertions/selector_assertions/html_selector.rb:48
                  • String#=~ $GemPath0/gems/rails-dom-testing-2.0.2/lib/rails/dom/testing/assertions/selector_assertions/html_selector.rb:50
              • Nokogiri::XML::NodeSet#block in each $GemPath0/gems/nokogiri-1.7.1/lib/nokogiri/xml/node_set.rb:186
                • Nokogiri::XML::NodeSet#[] $GemPath0/gems/nokogiri-1.7.1/lib/nokogiri/xml/node_set.rb:187
                  • Nokogiri::HTML::Document#decorate $GemPath0/gems/nokogiri-1.7.1/lib/nokogiri/xml/document.rb:214
                • HTMLSelector#block in filter $GemPath0/gems/rails-dom-testing-2.0.2/lib/rails/dom/testing/assertions/selector_assertions/html_selector.rb:43
                  • Nokogiri::XML::Node#content $GemPath0/gems/rails-dom-testing-2.0.2/lib/rails/dom/testing/assertions/selector_assertions/html_selector.rb:45
                  • Nokogiri::XML::Node#node_name $GemPath0/gems/rails-dom-testing-2.0.2/lib/rails/dom/testing/assertions/selector_assertions/html_selector.rb:47
                  • Array#include? $GemPath0/gems/rails-dom-testing-2.0.2/lib/rails/dom/testing/assertions/selector_assertions/html_selector.rb:47
                  • String#strip! $GemPath0/gems/rails-dom-testing-2.0.2/lib/rails/dom/testing/assertions/selector_assertions/html_selector.rb:47
                  • Nokogiri::XML::Node#node_name $GemPath0/gems/rails-dom-testing-2.0.2/lib/rails/dom/testing/assertions/selector_assertions/html_selector.rb:48
                  • String#=~ $GemPath0/gems/rails-dom-testing-2.0.2/lib/rails/dom/testing/assertions/selector_assertions/html_selector.rb:50
              • Nokogiri::XML::NodeSet#block in each $GemPath0/gems/nokogiri-1.7.1/lib/nokogiri/xml/node_set.rb:186
                • Nokogiri::XML::NodeSet#[] $GemPath0/gems/nokogiri-1.7.1/lib/nokogiri/xml/node_set.rb:187
                  • Nokogiri::HTML::Document#decorate $GemPath0/gems/nokogiri-1.7.1/lib/nokogiri/xml/document.rb:214
                • HTMLSelector#block in filter $GemPath0/gems/rails-dom-testing-2.0.2/lib/rails/dom/testing/assertions/selector_assertions/html_selector.rb:43
                  • Nokogiri::XML::Node#content $GemPath0/gems/rails-dom-testing-2.0.2/lib/rails/dom/testing/assertions/selector_assertions/html_selector.rb:45
                  • Nokogiri::XML::Node#node_name $GemPath0/gems/rails-dom-testing-2.0.2/lib/rails/dom/testing/assertions/selector_assertions/html_selector.rb:47
                  • Array#include? $GemPath0/gems/rails-dom-testing-2.0.2/lib/rails/dom/testing/assertions/selector_assertions/html_selector.rb:47
                  • String#strip! $GemPath0/gems/rails-dom-testing-2.0.2/lib/rails/dom/testing/assertions/selector_assertions/html_selector.rb:47
                  • Nokogiri::XML::Node#node_name $GemPath0/gems/rails-dom-testing-2.0.2/lib/rails/dom/testing/assertions/selector_assertions/html_selector.rb:48
                  • String#=~ $GemPath0/gems/rails-dom-testing-2.0.2/lib/rails/dom/testing/assertions/selector_assertions/html_selector.rb:50
        • Class#new $GemPath0/gems/rails-dom-testing-2.0.2/lib/rails/dom/testing/assertions/selector_assertions/html_selector.rb:56
          • Nokogiri::XML::NodeSet#initialize $GemPath0/gems/nokogiri-1.7.1/lib/nokogiri/xml/node_set.rb:15
            • Nokogiri::HTML::Document#decorate $GemPath0/gems/nokogiri-1.7.1/lib/nokogiri/xml/document.rb:214
            • Array#each $GemPath0/gems/nokogiri-1.7.1/lib/nokogiri/xml/node_set.rb:18
              • Nokogiri::XML::NodeSet#block in initialize $GemPath0/gems/nokogiri-1.7.1/lib/nokogiri/xml/node_set.rb:18
                • Nokogiri::XML::NodeSet#push $GemPath0/gems/nokogiri-1.7.1/lib/nokogiri/xml/node_set.rb:18
              • Nokogiri::XML::NodeSet#block in initialize $GemPath0/gems/nokogiri-1.7.1/lib/nokogiri/xml/node_set.rb:18
                • Nokogiri::XML::NodeSet#push $GemPath0/gems/nokogiri-1.7.1/lib/nokogiri/xml/node_set.rb:18
              • Nokogiri::XML::NodeSet#block in initialize $GemPath0/gems/nokogiri-1.7.1/lib/nokogiri/xml/node_set.rb:18
                • Nokogiri::XML::NodeSet#push $GemPath0/gems/nokogiri-1.7.1/lib/nokogiri/xml/node_set.rb:18
            • Kernel#block_given? $GemPath0/gems/nokogiri-1.7.1/lib/nokogiri/xml/node_set.rb:19
    • Kernel#tap $GemPath0/gems/rails-dom-testing-2.0.2/lib/rails/dom/testing/assertions/selector_assertions.rb:171
      • StoreControllerTest#block in assert_select $GemPath0/gems/rails-dom-testing-2.0.2/lib/rails/dom/testing/assertions/selector_assertions.rb:171
        • Nokogiri::XML::NodeSet#length $GemPath0/gems/rails-dom-testing-2.0.2/lib/rails/dom/testing/assertions/selector_assertions.rb:172
        • StoreControllerTest#assert_size_match! $GemPath0/gems/rails-dom-testing-2.0.2/lib/rails/dom/testing/assertions/selector_assertions.rb:270
          • StoreControllerTest#count_description $GemPath0/gems/rails-dom-testing-2.0.2/lib/rails/dom/testing/assertions/selector_assertions/count_describable.rb:12
            • Integer#to_s $GemPath0/gems/activesupport-5.0.2/lib/active_support/core_ext/numeric/conversions.rb:103
              • NilClass#=== $GemPath0/gems/activesupport-5.0.2/lib/active_support/core_ext/numeric/conversions.rb:105
              • Integer#to_s $GemPath0/gems/activesupport-5.0.2/lib/active_support/core_ext/numeric/conversions.rb:106
            • StoreControllerTest#pluralize_element $GemPath0/gems/rails-dom-testing-2.0.2/lib/rails/dom/testing/assertions/selector_assertions/count_describable.rb:24
          • Integer#to_s $GemPath0/gems/activesupport-5.0.2/lib/active_support/core_ext/numeric/conversions.rb:103
            • NilClass#=== $GemPath0/gems/activesupport-5.0.2/lib/active_support/core_ext/numeric/conversions.rb:105
            • Integer#to_s $GemPath0/gems/activesupport-5.0.2/lib/active_support/core_ext/numeric/conversions.rb:106
          • StoreControllerTest#assert_operator $GemPath0/gems/minitest-5.10.1/lib/minitest/assertions.rb:264
            • StoreControllerTest#message $GemPath0/gems/minitest-5.10.1/lib/minitest/assertions.rb:512
              • Kernel#proc $GemPath0/gems/minitest-5.10.1/lib/minitest/assertions.rb:513
            • Integer#>= $GemPath0/gems/minitest-5.10.1/lib/minitest/assertions.rb:267
            • StoreControllerTest#assert $GemPath0/gems/minitest-5.10.1/lib/minitest/assertions.rb:134
        • Kernel#block_given? $GemPath0/gems/rails-dom-testing-2.0.2/lib/rails/dom/testing/assertions/selector_assertions.rb:175