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我正在使用 Rails 4（测试版）和模型测试部分（迭代 B2）进行敏捷 Web 开发。在我在 test/models/product_test.rb 文件中添加以下代码之前，一切都很好。它是从pdf复制粘贴的。当我尝试为模型运行测试时，我遇到了一个奇怪的错误。我也在出版商的论坛上发过帖子。

def new_product(image_url)
    Product.new(title: "My Book Title",
            description: "yyy", 
            price: 1, 
            image_url: image_url)
end

test "image url" do
    ok = %w{ fred.gif fred.jpg fred.png FRED.JPG FRED.Jpg http://a.b.c/x/y/z/fred.gif }
    bad = %w{ fred.doc fred.gif/more fred.gif.more }

    ok.each do |name|
        assert new_product(name).valid?, "#{name} shouldn't be invalid"
    end

    bad.each do |name|
        assert new_product(name).invalid?, "#{name} shouldn't be valid"
    end 
end

这是我rake test:models --trace在终端运行后遇到的错误。 

➜  depot git:(master) ✗ rake test:models --trace  
** Invoke test:models (first_time)  
** Invoke test:prepare (first_time)  
** Invoke db:test:prepare (first_time)  
** Execute db:test:prepare  
** Invoke db:test:load (first_time)  
** Invoke db:test:purge (first_time)  
** Invoke environment (first_time)  
** Execute environment  
** Invoke db:load_config (first_time)  
** Execute db:load_config  
** Execute db:test:purge  
** Execute db:test:load  
** Invoke db:test:load_schema (first_time)  
** Invoke db:test:purge   
** Execute db:test:load_schema  
** Invoke db:schema:load (first_time)  
** Invoke environment   
** Invoke db:load_config   
** Execute db:schema:load  
** Invoke db:abort_if_pending_migrations (first_time)  
** Invoke environment   
** Execute db:abort_if_pending_migrations  
** Execute test:prepare  
** Execute test:models  
rake aborted!  
unknown command 'i'  
/Users/admin/Dropbox/code/rails/depot/test/models/product_test.rb:39:in `test'  
/Users/admin/Dropbox/code/rails/depot/test/models/product_test.rb:39:in `<top (required)>'  
/Users/admin/.rvm/gems/ruby-1.9.3-p385@rails3tut/gems/activesupport-4.0.0.rc1/lib/active_support/dependencies.rb:228:in `require'  
/Users/admin/.rvm/gems/ruby-1.9.3-p385@rails3tut/gems/activesupport-4.0.0.rc1/lib/active_support/dependencies.rb:228:in `block in require'  
/Users/admin/.rvm/gems/ruby-1.9.3-p385@rails3tut/gems/activesupport-4.0.0.rc1/lib/active_support/dependencies.rb:213:in `load_dependency'  
/Users/admin/.rvm/gems/ruby-1.9.3-p385@rails3tut/gems/activesupport-4.0.0.rc1/lib/active_support/dependencies.rb:228:in `require'  
/Users/admin/.rvm/gems/ruby-1.9.3-p385@rails3tut/gems/railties-4.0.0.rc1/lib/rails/test_unit/sub_test_task.rb:73:in `block (3 levels) in define'  
/Users/admin/.rvm/gems/ruby-1.9.3-p385@rails3tut/gems/railties-4.0.0.rc1/lib/rails/test_unit/sub_test_task.rb:73:in `each'  
/Users/admin/.rvm/gems/ruby-1.9.3-p385@rails3tut/gems/railties-4.0.0.rc1/lib/rails/test_unit/sub_test_task.rb:73:in `block (2 levels) in define'  
/Users/admin/.rvm/gems/ruby-1.9.3-p385@rails3tut/gems/railties-4.0.0.rc1/lib/rails/test_unit/sub_test_task.rb:72:in `each'  
/Users/admin/.rvm/gems/ruby-1.9.3-p385@rails3tut/gems/railties-4.0.0.rc1/lib/rails/test_unit/sub_test_task.rb:72:in `block in define'  
/Users/admin/.rvm/gems/ruby-1.9.3-p385@rails3tut/gems/rake-10.1.0/lib/rake/task.rb:236:in `call'  
/Users/admin/.rvm/gems/ruby-1.9.3-p385@rails3tut/gems/rake-10.1.0/lib/rake/task.rb:236:in `block in execute'  
/Users/admin/.rvm/gems/ruby-1.9.3-p385@rails3tut/gems/rake-10.1.0/lib/rake/task.rb:231:in `each'  
/Users/admin/.rvm/gems/ruby-1.9.3-p385@rails3tut/gems/rake-10.1.0/lib/rake/task.rb:231:in `execute'  
/Users/admin/.rvm/gems/ruby-1.9.3-p385@rails3tut/gems/rake-10.1.0/lib/rake/task.rb:175:in `block in invoke_with_call_chain'  
/Users/admin/.rvm/rubies/ruby-1.9.3-p385/lib/ruby/1.9.1/monitor.rb:211:in `mon_synchronize'  
/Users/admin/.rvm/gems/ruby-1.9.3-p385@rails3tut/gems/rake-10.1.0/lib/rake/task.rb:168:in `invoke_with_call_chain'  
/Users/admin/.rvm/gems/ruby-1.9.3-p385@rails3tut/gems/rake-10.1.0/lib/rake/task.rb:161:in `invoke'  
/Users/admin/.rvm/gems/ruby-1.9.3-p385@rails3tut/gems/rake-10.1.0/lib/rake/application.rb:149:in `invoke_task'  
/Users/admin/.rvm/gems/ruby-1.9.3-p385@rails3tut/gems/rake-10.1.0/lib/rake/application.rb:106:in `block (2 levels) in top_level'  
/Users/admin/.rvm/gems/ruby-1.9.3-p385@rails3tut/gems/rake-10.1.0/lib/rake/application.rb:106:in `each'  
/Users/admin/.rvm/gems/ruby-1.9.3-p385@rails3tut/gems/rake-10.1.0/lib/rake/application.rb:106:in `block in top_level'  
/Users/admin/.rvm/gems/ruby-1.9.3-p385@rails3tut/gems/rake-10.1.0/lib/rake/application.rb:115:in `run_with_threads'  
/Users/admin/.rvm/gems/ruby-1.9.3-p385@rails3tut/gems/rake-10.1.0/lib/rake/application.rb:100:in `top_level'  
/Users/admin/.rvm/gems/ruby-1.9.3-p385@rails3tut/gems/rake-10.1.0/lib/rake/application.rb:78:in `block in run'  
/Users/admin/.rvm/gems/ruby-1.9.3-p385@rails3tut/gems/rake-10.1.0/lib/rake/application.rb:165:in `standard_exception_handling'  
/Users/admin/.rvm/gems/ruby-1.9.3-p385@rails3tut/gems/rake-10.1.0/lib/rake/application.rb:75:in `run'  
/Users/admin/.rvm/gems/ruby-1.9.3-p385@rails3tut/gems/rake-10.1.0/bin/rake:33:in `<top (required)>'  
/Users/admin/.rvm/gems/ruby-1.9.3-p385@rails3tut/bin/rake:23:in `load'  
/Users/admin/.rvm/gems/ruby-1.9.3-p385@rails3tut/bin/rake:23:in `<main>'  
Tasks: TOP => test:models  
Run options: --seed 9617  

# Running tests:  

..  

Finished tests in 0.550033s, 3.6361 tests/s, 18.1807 assertions/s.
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1 回答 1

1

跟踪告诉您，您unknown command 'i'在文件 product_test.rb 的第 39 行（这就是那个product_test.rb:39）的意思。

你i在那条线上的某个地方放错地方了吗？它可能在您引用的代码段之外 - 如果没有您的行号，我无法判断。

于 2013-07-01T20:00:20.810 回答