rspec 失败错误:预期为 false 以响应 `false?` [英] rspec failing error: expected false to respond to `false?`
问题描述
我正在运行测试的这一部分:
I am running this portion of a test:
describe Dictionary do
before do
@d = Dictionary.new
end
it 'can check whether a given keyword exists' do
@d.include?('fish').should be_false
end
使用此代码:
class Dictionary
def initialize
@hash = {}
end
def add(new_entry)
new_entry.class == String ? @hash[new_entry] = nil : new_entry.each { |noun, definition| @hash[noun] = definition}
end
def entries
@hash
end
def keywords
@hash.keys
end
def include?(word)
if @hash.has_key?(word)
true
else
false
end
end
end
我不知道我做错了什么,但我的测试一直失败并说:
I don't know what I'm doing wrong, but my tests keep failing and saying this:
> 1) Dictionary can check whether a given keyword exists
> Failure/Error: @d.include?('fish').should be_false
> expected false to respond to `false?`
我对错误感到困惑,因为它似乎给出了正确的答案.如果有人能花几分钟告诉我我的代码有什么问题,我将不胜感激.谢谢吨.
I am confused at the error since it seems to be giving the correct answer. I would really appreciate if someone could take a few minutes to tell me what's wrong with my code. Thank you tons.
推荐答案
如果您浏览 RSpec 期望 2.99 和 RSpec Expectations 2.14 并搜索部分 - Truthiness andexistentialism,你会发现
If you browse the RSpec Expectations 2.99 and RSpec Expectations 2.14 and search the section - Truthiness and existentialism, you will find
expect(actual).to be_true # passes if actual is truthy (not nil or false)
expect(actual).to be_false # passes if actual is falsy (nil or false)
# ...............
# ...
但是你们浏览 RSpec 期望3.0 ,上面的方法名改为-
But of you browse RSpec Expectations 3.0 , the above method names got changed to -
expect(actual).to be_truthy # passes if actual is truthy (not nil or false)
expect(actual).to be true # passes if actual == true
expect(actual).to be_falsey # passes if actual is falsy (nil or false)
# ...........
#......
您似乎在 3.0 中,并且使用此版本之前存在的方法.因此你得到了错误.
It seems you are in 3.0, and using the method which were exist prior to this version. Thus you were getting the error.
我将代码放在我的 test.rb 文件中,如下所示:-
I put the code in my test.rb file as below :-
class Dictionary
def initialize
@hash = {}
end
def add(new_entry)
new_entry.class == String ? @hash[new_entry] = nil : new_entry.each { |noun, definition| @hash[noun] = definition}
end
def entries
@hash
end
def keywords
@hash.keys
end
def include?(word)
if @hash.has_key?(word)
true
else
false
end
end
end
我的 spec/test_spec.rb 文件是 -
require_relative "../test.rb"
describe Dictionary do
before do
@d = Dictionary.new
end
it 'can check whether a given keyword exists' do
@d.include?('fish').should be_false
end
end
现在我从我的控制台运行代码,它可以工作:
Now I am running the code from my console, and it works :
arup@linux-wzza:~/Ruby> rspec -v
2.14.8
arup@linux-wzza:~/Ruby> rspec spec
.
Finished in 0.00169 seconds
1 example, 0 failures
<小时>
现在我正在更改我的 spec/test_spec.rb 文件中的代码:-
require_relative "../test.rb"
describe Dictionary do
before do
@d = Dictionary.new
end
it 'can check whether a given keyword exists' do
@d.include?('fish').should be_falsey
end
end
再次运行测试:-
arup@linux-wzza:~/Ruby> rspec -v
2.14.8
arup@linux-wzza:~/Ruby> rspec spec
F
Failures:
1) Dictionary can check whether a given keyword exists
Failure/Error: @d.include?('fish').should be_falsey
NoMethodError:
undefined method `falsey?' for false:FalseClass
# ./spec/test_spec.rb:9:in `block (2 levels) in <top (required)>'
Finished in 0.00179 seconds
1 example, 1 failure
Failed examples:
rspec ./spec/test_spec.rb:8 # Dictionary can check whether a given keyword exists
arup@linux-wzza:~/Ruby>
<小时>
现在,他们还在 3.0.0 中提到.beta1/2013-11-07 更新日志
将be_true
和be_false
重命名为be_truthy
和be_falsey
.(山姆·菲彭)
Rename
be_true
andbe_false
tobe_truthy
andbe_falsey
. (Sam Phippen)
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