ruby - undefined local variable or method error when trying to use `instance_variable_set` in rspec -


i have class this

require 'net/http' class foo   def initialize     @error_count = 0   end   def run     result = net::http.start("google.com")     @error_count = 0 if result   rescue     @error_count += 1   end end

and spec file it.

require_relative 'foo'

describe foo   let(:foo){ foo.new}   describe "#run"     context "when fails 30 times"       foo.instance_variable_set(:@error_count, 30)     end   end end

and run rspec foo_spec.rb, fails error.

foo_spec.rb:7:in `block (3 levels) in <top (required)>': undefined local variable or method `foo' #<class:0x007fc37410c400> (nameerror)

how should call instance_variable_set method in rspec?

edit

i want call send_error method if 30 times fails.

require 'net/http' class foo   def initialize     @error_count = 0   end   def run     result = net::http.start("google.com")     @error_count = 0 if result   rescue     @error_count += 1     send_error if @error_count >= 30   end   def send_error   end end

and spec file test send_error called when connection fails 30 times.

require_relative 'foo'  describe foo   let(:foo){ foo.new}   describe "#run"     context "when fails 30 times"       "should send error"         foo.instance_variable_set(:@error_count, 30)         expect(foo).to receive(:send_error)       end     end   end end

i don't know you're trying do, suspect it's not right approach things.

however, immediate problem you're not in context of test, foo undefined. want wrap foo.instance_variable_set in test construct - either it or specify block, or before :each, or similar.


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