如何使用HtmlFormatter運行RSpec？獲得「私人方法」放'所謂nil：NilClass「

Question

我有一些規格，我希望在Rails視圖（v3.2.15）中使用。

我使用的是rspec-rails gem v2.14.0，我運行的代碼如下。

此代碼用於創建gem的v2.11.4，我可以看到HtmlFormatter現在已將其代碼拆分爲HtmlPrinter，我想這與代碼中的錯誤有關。你打算如何使用HtmlFormatter？我找不到源代碼之外的任何文檔......我在下面做錯了什麼？

class RSpecRunner 
    attr_accessor :summary, :html, :documentation 
    SpecPath = "system_checks/**/*_spec.rb" 
    DataChecks = "data_checks/**/*_spec.rb" 

    def initialize(path) 
     @html = RSpec::Core::Formatters::HtmlFormatter.new(nil) 
     @documentation = RSpec::Core::Formatters::DocumentationFormatter.new(nil) 
    end 

    def run! 
     RSpec::world.reset 
     Dir[@spec_path].each { |f| load f } 

     @html = RSpec::Core::Formatters::HtmlFormatter.new(nil) 
     reporter = RSpec::Core::Reporter.new(@html) 

     RSpec::world.example_groups.each do |example_group| 
     example_group.run(reporter) 
     end 
    end 
    end 

控制器

@sys_check = RSpecRunner.new(RSpecRunner::SystemChecksPath) 
@sys_check.run! 

查看

@sys_check.html.output.string 

錯誤

NoMethodError: private method `puts' called for nil:NilClass 
    from /usr/lib/ruby/gems/1.9.1/gems/rspec-core-2.14.7/lib/rspec/core/formatters/html_printer.rb:23:in `print_example_group_start' 
    from /usr/lib/ruby/gems/1.9.1/gems/rspec-core-2.14.7/lib/rspec/core/formatters/html_formatter.rb:50:in `example_group_started' 
    from /usr/lib/ruby/gems/1.9.1/gems/rspec-core-2.14.7/lib/rspec/core/reporter.rb:127:in `block in notify' 
    from /usr/lib/ruby/gems/1.9.1/gems/rspec-core-2.14.7/lib/rspec/core/reporter.rb:126:in `each' 
    from /usr/lib/ruby/gems/1.9.1/gems/rspec-core-2.14.7/lib/rspec/core/reporter.rb:126:in `notify' 
    from /usr/lib/ruby/gems/1.9.1/gems/rspec-core-2.14.7/lib/rspec/core/reporter.rb:74:in `example_group_started' 
    from /usr/lib/ruby/gems/1.9.1/gems/rspec-core-2.14.7/lib/rspec/core/example_group.rb:367:in `run' 
    from (irb):11:in `block in irb_binding' 
    from (irb):10:in `each' 
    from (irb):10 

謝謝

Answer 1

HtmlFormatter想要一種方式來輸出東西。給它STDOUT：

@html = RSpec::Core::Formatters::HtmlFormatter.new(STDOUT) 

如果你想輸出去一個文件然而，如HTML文件，給它一個文件句柄：

fh = File.open('path/to/html_output/rspec-html-output.html', 'w') 
@html = RSpec::Core::Formatters::HtmlFormatter.new(fh) 

現在，你有一個可愛的小rspec格式化輸出的html文件。

編輯： 無論你傳遞給RSpec::Core::Formatters::HtmlFormatter.new需要響應puts和flush。

既然你要保存的輸出存取你可以定義自己的自定義類的方法，將輸出保存到適當的訪問：html和：文檔：

class HTMLOutput 
    def initialize(rspec_runner) 
    @rspec_runner = rspec_runner 
    end 

    def puts(html) 
    @rspec_runner.html ||= "" 
    @rspec_runner.html << html 
    end 

    def flush; end 
end 

class DocOutput 
    def initialize(rspec_runner) 
    @rspec_runner = rspec_runner 
    end 

    def puts(html) 
    @rspec_runner.documentation ||= "" 
    @rspec_runner.documentation << html 
    end 

    def flush; end 
end 

class RSpecRunner 
    def initialize(path) 
    # I assumed you wanted to save the output of the formatter to the 
    # accessors :html and :documentation but you were already assigning 
    # the formatters to these accessors via @html etc. Make new instance vars 
    # for these and use the accessors just for the output. 
    # By instantiating these output classes and passing in self they will be able 
    # to save the output to the :html, :documentation accessors. 
    @html_formatter = RSpec::Core::Formatters::HtmlFormatter.new(HTMLOutput.new(self)) 
    @documentation_formatter = RSpec::Core::Formatters::DocumentationFormatter.new(DocOutput.new(self)) 
    end 

    ... rest of your code ... 
end 

最後，在亞軍的run!方法，你不必再實例化這個傢伙：

@html = RSpec::Core::Formatters::HtmlFormatter.new(nil) 

希望有所幫助。