36 lines
1.1 KiB
Ruby
36 lines
1.1 KiB
Ruby
# frozen_string_literal: true
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require 'spec_helper'
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RSpec.describe Banzai::Filter::ImageLazyLoadFilter do
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include FilterSpecHelper
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def image(path)
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%(<img src="#{path}" />)
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end
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def image_with_class(path, class_attr = nil)
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%(<img src="#{path}" class="#{class_attr}"/>)
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end
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it 'adds a class attribute' do
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doc = filter(image('/uploads/e90decf88d8f96fe9e1389afc2e4a91f/test.jpg'))
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expect(doc.at_css('img')['class']).to eq 'lazy'
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end
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it 'appends to the current class attribute' do
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doc = filter(image_with_class('/uploads/e90decf88d8f96fe9e1389afc2e4a91f/test.jpg', 'test'))
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expect(doc.at_css('img')['class']).to eq 'test lazy'
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end
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it 'transforms the image src to a data-src' do
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doc = filter(image('/uploads/e90decf88d8f96fe9e1389afc2e4a91f/test.jpg'))
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expect(doc.at_css('img')['data-src']).to eq '/uploads/e90decf88d8f96fe9e1389afc2e4a91f/test.jpg'
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end
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it 'works with external images' do
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doc = filter(image('https://i.imgur.com/DfssX9C.jpg'))
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expect(doc.at_css('img')['data-src']).to eq 'https://i.imgur.com/DfssX9C.jpg'
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end
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end
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