87 lines
2.4 KiB
Ruby
87 lines
2.4 KiB
Ruby
# frozen_string_literal: true
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require 'spec_helper'
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describe Banzai::Renderer do
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def fake_object(fresh:)
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object = double('object')
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allow(object).to receive(:respond_to?).with(:cached_markdown_fields).and_return(true)
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allow(object).to receive(:cached_html_up_to_date?).with(:field).and_return(fresh)
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allow(object).to receive(:cached_html_for).with(:field).and_return('field_html')
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object
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end
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def fake_cacheless_object
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object = double('cacheless object')
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allow(object).to receive(:respond_to?).with(:cached_markdown_fields).and_return(false)
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object
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end
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describe '#cache_collection_render' do
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let(:merge_request) { fake_object(fresh: true) }
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let(:context) { { cache_key: [merge_request, 'field'], rendered: merge_request.field_html } }
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context 'when an item has a rendered field' do
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before do
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allow(merge_request).to receive(:field).and_return('This is the field')
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allow(merge_request).to receive(:field_html).and_return('This is the field')
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end
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it 'does not touch redis if the field is in the cache' do
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expect(Rails).not_to receive(:cache)
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described_class.cache_collection_render([{ text: merge_request.field, context: context }])
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end
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end
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end
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describe '#render_field' do
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let(:renderer) { described_class }
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context 'without cache' do
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let(:commit) { fake_cacheless_object }
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it 'returns cacheless render field' do
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expect(renderer).to receive(:cacheless_render_field).with(commit, :field, {})
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renderer.render_field(commit, :field)
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end
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end
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context 'with cache' do
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subject { renderer.render_field(object, :field) }
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context 'with a stale cache' do
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let(:object) { fake_object(fresh: false) }
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it 'caches and returns the result' do
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expect(object).to receive(:refresh_markdown_cache!)
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is_expected.to eq('field_html')
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end
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it "skips database caching on a GitLab read-only instance" do
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allow(Gitlab::Database).to receive(:read_only?).and_return(true)
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expect(object).to receive(:refresh_markdown_cache!)
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is_expected.to eq('field_html')
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end
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end
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context 'with an up-to-date cache' do
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let(:object) { fake_object(fresh: true) }
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it 'uses the cache' do
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expect(object).to receive(:refresh_markdown_cache!).never
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is_expected.to eq('field_html')
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end
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end
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end
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end
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end
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