debian-mirror-gitlab/spec/lib/gitlab/class_attributes_spec.rb

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# frozen_string_literal: true
require 'fast_spec_helper'
RSpec.describe Gitlab::ClassAttributes do
let(:klass) do
Class.new do
include Gitlab::ClassAttributes
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class << self
attr_reader :counter_1, :counter_2
# get_class_attribute and set_class_attribute are protected,
# hence those methods are for testing purpose
def get_attribute(name)
get_class_attribute(name)
end
def set_attribute(name, value)
set_class_attribute(name, value)
end
end
after_set_class_attribute do
@counter_1 ||= 0
@counter_1 += 1
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end
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after_set_class_attribute do
@counter_2 ||= 0
@counter_2 += 2
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end
end
end
let(:subclass) { Class.new(klass) }
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it "returns values set on the class" do
klass.set_attribute(:foo, :bar)
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expect(klass.get_attribute(:foo)).to eq(:bar)
end
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it "returns values set on a superclass" do
klass.set_attribute(:foo, :bar)
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expect(subclass.get_attribute(:foo)).to eq(:bar)
end
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it "returns values from the subclass over attributes from a superclass" do
klass.set_attribute(:foo, :baz)
subclass.set_attribute(:foo, :bar)
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expect(klass.get_attribute(:foo)).to eq(:baz)
expect(subclass.get_attribute(:foo)).to eq(:bar)
end
it "triggers after hooks after set class values" do
expect(klass.counter_1).to be(nil)
expect(klass.counter_2).to be(nil)
klass.set_attribute(:foo, :bar)
klass.set_attribute(:foo, :bar)
expect(klass.counter_1).to eq(2)
expect(klass.counter_2).to eq(4)
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end
end