我正在尝试为该类的任何实例(通过 any_instance) stub 一个类方法。我的测试成功运行，但在测试结束时，当 rspec 尝试重置 any_instance stub 时，它会抛出错误(无法从回溯中找到匹配行)。这是明显的罪魁祸首代码行(删除它会删除错误):
Confetti::Config.any_instance.stub(:write_info)
完整错误如下。似乎 stub 应该(但没有)创建 __rspec_original_dup 方法，并且当重置发生时，它找不到预期的方法。
Failure/Error: Unable to find matching line from backtrace
NameError:
undefined method `__rspec_original_dup' for class `Confetti::Config'
# /Library/Ruby/Gems/1.8/gems/rspec-mocks-2.11.1/lib/rspec/mocks/any_instance.rb:73:in `alias_method'
# /Library/Ruby/Gems/1.8/gems/rspec-mocks-2.11.1/lib/rspec/mocks/any_instance.rb:73:in `restore_dup'
# /Library/Ruby/Gems/1.8/gems/rspec-mocks-2.11.1/lib/rspec/mocks/any_instance.rb:72:in `class_eval'
# /Library/Ruby/Gems/1.8/gems/rspec-mocks-2.11.1/lib/rspec/mocks/any_instance.rb:72:in `restore_dup'
# /Library/Ruby/Gems/1.8/gems/rspec-mocks-2.11.1/lib/rspec/mocks/any_instance.rb:46:in `rspec_reset'
# /Library/Ruby/Gems/1.8/gems/rspec-mocks-2.11.1/lib/rspec/mocks/space.rb:17:in `reset_all'
# /Library/Ruby/Gems/1.8/gems/rspec-mocks-2.11.1/lib/rspec/mocks/space.rb:16:in `each'
# /Library/Ruby/Gems/1.8/gems/rspec-mocks-2.11.1/lib/rspec/mocks/space.rb:16:in `reset_all'
# /Library/Ruby/Gems/1.8/gems/rspec-mocks-2.11.1/lib/rspec/mocks.rb:23:in `teardown'
# /Library/Ruby/Gems/1.8/gems/rspec-core-2.11.1/lib/rspec/core/mocking/with_rspec.rb:18:in `teardown_mocks_for_rspec'
# /Library/Ruby/Gems/1.8/gems/rspec-core-2.11.1/lib/rspec/core/example.rb:308:in `run_after_each'
# /Library/Ruby/Gems/1.8/gems/rspec-core-2.11.1/lib/rspec/core/example.rb:119:in `run'
# /Library/Ruby/Gems/1.8/gems/rspec-core-2.11.1/lib/rspec/core/example.rb:253:in `with_around_each_hooks'
# /Library/Ruby/Gems/1.8/gems/rspec-core-2.11.1/lib/rspec/core/example.rb:110:in `run'
# /Library/Ruby/Gems/1.8/gems/rspec-core-2.11.1/lib/rspec/core/example_group.rb:378:in `run_examples'
# /Library/Ruby/Gems/1.8/gems/rspec-core-2.11.1/lib/rspec/core/example_group.rb:374:in `map'
# /Library/Ruby/Gems/1.8/gems/rspec-core-2.11.1/lib/rspec/core/example_group.rb:374:in `run_examples'
# /Library/Ruby/Gems/1.8/gems/rspec-core-2.11.1/lib/rspec/core/example_group.rb:360:in `run'
# /Library/Ruby/Gems/1.8/gems/rspec-core-2.11.1/lib/rspec/core/example_group.rb:361:in `run'
# /Library/Ruby/Gems/1.8/gems/rspec-core-2.11.1/lib/rspec/core/example_group.rb:361:in `map'
# /Library/Ruby/Gems/1.8/gems/rspec-core-2.11.1/lib/rspec/core/example_group.rb:361:in `run'
# /Library/Ruby/Gems/1.8/gems/rspec-core-2.11.1/lib/rspec/core/command_line.rb:28:in `run'
# /Library/Ruby/Gems/1.8/gems/rspec-core-2.11.1/lib/rspec/core/command_line.rb:28:in `map'
# /Library/Ruby/Gems/1.8/gems/rspec-core-2.11.1/lib/rspec/core/command_line.rb:28:in `run'
# /Library/Ruby/Gems/1.8/gems/rspec-core-2.11.1/lib/rspec/core/reporter.rb:34:in `report'
# /Library/Ruby/Gems/1.8/gems/rspec-core-2.11.1/lib/rspec/core/command_line.rb:25:in `run'
# /Library/Ruby/Gems/1.8/gems/rspec-core-2.11.1/lib/rspec/core/runner.rb:69:in `run'
# /Library/Ruby/Gems/1.8/gems/rspec-core-2.11.1/lib/rspec/core/runner.rb:8:in `autorun'
# /usr/bin/rspec:19
最佳答案
我通过简单地使用 Rspec v2.10.0 而不是 v2.11.0 解决了这个问题:
gem 'rspec', '~> 2.10.0'
从 Henrik 提供的链接来看，他们可能会发布 Rspec 的错误修正。 watch this issue想要查询更多的信息。与此同时，降级为我解决了这个问题。
(感谢你帮助我解决这个问题，Henrik。)
关于ruby - Rspec any_instance stub 导致错误未定义方法 __rspec_original_dup，我们在Stack Overflow上找到一个类似的问题： https://stackoverflow.com/questions/11679987/