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@@ -0,0 +1,56 @@
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+# frozen_string_literal: true
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+
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+require 'rails_helper'
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+
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+describe CacheBuster do
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+ subject { described_class.new(secret_header: secret_header, secret: secret, http_method: http_method) }
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+
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+ let(:secret_header) { nil }
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+ let(:secret) { nil }
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+ let(:http_method) { nil }
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+
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+ let(:purge_url) { 'https://example.com/test_purge' }
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+
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+ describe '#bust' do
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+ shared_examples 'makes_request' do
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+ it 'makes an HTTP purging request' do
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+ method = http_method&.to_sym || :get
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+ stub_request(method, purge_url).to_return(status: 200)
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+
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+ subject.bust(purge_url)
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+
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+ test_request = a_request(method, purge_url)
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+
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+ test_request = test_request.with(headers: { secret_header => secret }) if secret && secret_header
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+
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+ expect(test_request).to have_been_made.once
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+ end
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+ end
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+
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+ context 'when using default options' do
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+ include_examples 'makes_request'
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+ end
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+
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+ context 'when specifying a secret header' do
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+ let(:secret_header) { 'X-Purge-Secret' }
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+ let(:secret) { SecureRandom.hex(20) }
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+
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+ include_examples 'makes_request'
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+ end
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+
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+ context 'when specifying a PURGE method' do
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+ let(:http_method) { 'purge' }
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+
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+ context 'when not using headers' do
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+ include_examples 'makes_request'
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+ end
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+
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+ context 'when specifying a secret header' do
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+ let(:secret_header) { 'X-Purge-Secret' }
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+ let(:secret) { SecureRandom.hex(20) }
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+
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+ include_examples 'makes_request'
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+ end
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+ end
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+ end
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+end
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