• 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