You have a typo in your Thing code:
def self.count=(val)
# Typo is +=, use just =
@count += val
end
That should just be @count = val not +=. This is causing count to increase
in size each time by 1 plus itself.
On Tue, Jul 1, 2014 at 4:25 PM, Surya <[email protected]> wrote:
> I think subject() defines the value which will be returned by the subject
> method:
> https://www.relishapp.com/rspec/rspec-core/v/2-6/docs/subject/explicit-subject
>
> context "using subject!" do
> subject { Thing.new }
>
> it "returns 1" do
> expect(subject.class.count).to eq(1)
> end
> end
>
>
>
> On Wed, Jul 2, 2014 at 1:10 AM, Arup Rakshit <[email protected]> wrote:
>
>> #######
>> test.rb
>> #######
>>
>> #!/usr/bin/env ruby
>>
>> class Thing
>> def self.count
>> @count ||= 0
>> end
>>
>> def self.count=(val)
>> @count += val
>> end
>>
>> def self.reset_count
>> @count = 0
>> end
>>
>> def initialize
>> self.class.count += 1
>> end
>> end
>>
>> ###########
>> test_spec.rb
>> ###########
>>
>> require_relative "../test.rb"
>>
>> describe Thing do
>> after(:example) do
>> puts "called"
>> #Thing.reset_count
>> end
>>
>> context "using subject!" do
>> subject!(:thing) { Thing.new }
>>
>> it "returns 1" do
>> expect(Thing.count).to eq(1)
>> end
>>
>> it "returns 2" do
>> expect(Thing.count).to eq(2)
>> end
>> end
>> end
>>
>> If I run the test :-
>>
>> arup@linux-wzza:~/Ruby> rspec spec/test_spec.rb
>> .F
>>
>> Failures:
>>
>> 1) Thing using subject! returns memoized version on first invocation
>> Failure/Error: expect(Thing.count).to eq(1)
>>
>> expected: 1
>> got: 3
>>
>> (compared using ==)
>> # ./spec/test_spec.rb:13:in `block (3 levels) in <top (required)>'
>>
>> Finished in 0.00173 seconds (files took 0.13718 seconds to load)
>> 2 examples, 1 failure
>>
>> Failed examples:
>>
>> rspec ./spec/test_spec.rb:11 # Thing using subject! returns memoized
>> version on first invocation
>>
>>
>> Now my question is how @count incremented by 3, shouldn't it be by 2 ?
>>
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>
>
>
> --
>
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>
> Regards,
> Surya
>
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