我正在尝试在 Rails 3 应用程序上运行 metric_fu。一切都很好，除了rcov。我已经配置了 RSpec，我的测试遵循 spec/**/*.rb 格式并在 RSpec 中运行良好。但是，尝试使用 rcov 检查覆盖率时，出现以下错误：
** Running the specs/tests in the [test] environment
No file to analyze was found. All the files loaded by rcov matched one of the
following expressions, and were thus ignored:
[/\A\/Users\/Eric\/\.rvm\/rubies\/ruby\-1\.8\.7\-p299\/lib/,
/\btc_[^.]*.rb/,
/_test\.rb\z/,
/\btest\//,
/\bvendor\//,
/\A\/Users\/Eric\/\.rvm\/gems\/ruby\-1\.8\.7\-p299@-backend\/gems\/rcov\-0\.9\.8\/lib\/rcov\/formatters\/base_formatter\.rb\z/,
/\bvendor\//,
/\bconfig\//,
/\benvironment\//,
/\/gems\//,
/\/Library\//,
/\/usr\//,
/spec/]
You can solve this by doing one or more of the following:
* rename the files not to be ignored so they don't match the above regexps
* use --include-file to give a list of patterns for files not to be ignored
* use --exclude-only to give the new list of regexps to match against
* structure your code as follows:
test/test_*.rb for the test cases
lib/**/*.rb for the target source code whose coverage you want
making sure that the test/test_*.rb files are loading from lib/, e.g. by
using the -Ilib command-line argument, adding
$:.unshift File.join(File.dirname(__FILE__), "..", "lib")
to test/test_*.rb, or running rcov via a Rakefile (read the RDoc
documentation or README.rake in the source distribution).
/Users/Eric/.rvm/rubies/ruby-1.8.7-p299/lib/ruby/site_ruby/1.8/rubygems/custom_require.rb:31:in `gem_original_require': no such file to load -- spec_helper (LoadError)
from /Users/Eric/.rvm/rubies/ruby-1.8.7-p299/lib/ruby/site_ruby/1.8/rubygems/custom_require.rb:31:in `require'
from ./spec/models/account_spec.rb:1
from /Users/Eric/.rvm/gems/ruby-1.8.7-p299@backend/gems/rcov-0.9.8/bin/rcov:511:in `load'
from /Users/Eric/.rvm/gems/ruby-1.8.7-p299@backend/gems/rcov-0.9.8/bin/rcov:511
from /Users/Eric/.rvm/gems/ruby-1.8.7-p299@backend/bin/rcov:19:in `load'
from /Users/Eric/.rvm/gems/ruby-1.8.7-p299@backend/bin/rcov:19
当我直接运行 rcov 时，问题的一部分似乎是 rcov 没有正确加载我的规范中的 spec_helper，这是“require 'spec_helper'”所必需的。
有关如何解决此问题的任何帮助？谢谢。