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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Please consider the environment before printing this email.
Regards,
Surya
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