1

带有被测对象的文件：foo.rb

class Foo
  def a_string
    "abcdef8"
  end
end

规格文件：foo_spec.rb

require_relative "./foo"

describe Foo do
  let(:foo) {Foo.new}
  let(:my_matcher) {/^[a-z]+(\d)$/}


  # This test passes

  it "should match and pass" do
    my_str = foo.a_string

    my_matcher # <--- why does this affect the test?

    matcher = my_str.match(my_matcher)
    8.should == matcher[1].to_i
  end

  # This test fails

  it "should also match and pass but fails" do
    my_str = foo.a_string

    #my_matcher #<---- the only change between the tests

    matcher = my_str.match(my_matcher)  #<---- when called here, it behaves differently
    8.should == matcher[1].to_i
  end
end

rspec foo_spec.rb

.F

Failures:

  1) Foo should also match and pass but fails
     Failure/Error: 8.should == matcher[1].to_i
     NoMethodError:
       undefined method `[]' for /^[a-z]+(\d)$/:Regexp
     # ./foo_spec.rb:18:in `block (2 levels) in <top (required)>'

Finished in 0.00095 seconds
2 examples, 1 failure

Failed examples:

rspec ./foo_spec.rb:14 # Foo should also match and pass but fails

两个测试的唯一区别是是否my_matcher被调用。我在检查 my_matcher (ie p my_matcher) 时第一次注意到这个问题，但它也发生在仅调用my_matcher.

这是一个错误，还是我做错了什么？也许它与捕获正则表达式数据有关？

这似乎是非常奇怪的行为，尤其是对于 ruby​​。

对于它的价值，这是一个简单的（如果稍微不那么干燥）修复。如果my_matcher在it块中声明它按预期工作。

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1 回答 1

1

这看起来像一个错误。您可以向 rspec-core 提出问题吗？

于 2013-03-07T23:38:30.557 回答