110 lines
3.3 KiB
Ruby
110 lines
3.3 KiB
Ruby
![]() |
# frozen_string_literal: true
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require 'spec_helper'
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RSpec.describe LazyImageTagHelper do
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describe '#image_tag' do
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let(:image_src) { '/path/to/image.jpg' }
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let(:dark_image_src) { '/path/to/image_dark.jpg' }
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context 'when only source passed' do
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let(:current_user) { create(:user) }
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let(:result) { image_tag(image_src) }
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it 'returns a lazy image tag by default' do
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expect(result).to eq(
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"<img data-src=\"#{image_src}\" class=\"lazy\" src=\"#{placeholder_image}\" />"
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)
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end
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end
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context 'when lazy mode is disabled' do
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let(:current_user) { create(:user) }
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let(:result) { image_tag(image_src, lazy: false) }
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it 'returns a normal image tag' do
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expect(result).to eq(
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"<img src=\"#{image_src}\" />"
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)
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end
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end
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context 'when Dark Mode is enabled' do
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let(:current_user) { create(:user, theme_id: 11) }
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context 'when auto dark enabled' do
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let(:result) { image_tag(image_src, auto_dark: true) }
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it 'adds an auto dark mode class from gitlab-ui' do
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expect(result).to eq(
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"<img class=\"gl-dark-invert-keep-hue lazy\" data-src=\"#{image_src}\" src=\"#{placeholder_image}\" />"
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)
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end
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end
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context 'when auto dark disabled' do
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let(:result) { image_tag(image_src, auto_dark: false) }
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it 'does nothing' do
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expect(result).to eq(
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"<img data-src=\"#{image_src}\" class=\"lazy\" src=\"#{placeholder_image}\" />"
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)
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end
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end
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context 'when dark variant is present' do
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let(:result) { image_tag(image_src, dark_variant: dark_image_src) }
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it 'uses dark variant as a source' do
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expect(result).to eq(
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"<img data-src=\"#{dark_image_src}\" class=\"lazy\" src=\"#{placeholder_image}\" />"
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)
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end
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end
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end
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context 'when Dark Mode is disabled' do
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let(:current_user) { create(:user, theme_id: 1) }
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context 'when auto dark enabled' do
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let(:result) { image_tag(image_src, auto_dark: true) }
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it 'does not add a dark mode class from gitlab-ui' do
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expect(result).to eq(
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"<img data-src=\"#{image_src}\" class=\"lazy\" src=\"#{placeholder_image}\" />"
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)
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end
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end
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context 'when auto dark disabled' do
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let(:result) { image_tag(image_src, auto_dark: true) }
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it 'does nothing' do
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expect(result).to eq(
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"<img data-src=\"#{image_src}\" class=\"lazy\" src=\"#{placeholder_image}\" />"
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)
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end
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end
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context 'when dark variant is present' do
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let(:result) { image_tag(image_src, dark_variant: dark_image_src) }
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it 'uses original image as a source' do
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expect(result).to eq(
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"<img data-src=\"#{image_src}\" class=\"lazy\" src=\"#{placeholder_image}\" />"
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)
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end
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end
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end
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context 'when auto_dark and dark_variant are both passed' do
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let(:current_user) { create(:user) }
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it 'does not add a dark mode class from gitlab-ui' do
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expect { image_tag('image.jpg', dark_variant: 'image_dark.jpg', auto_dark: true) }
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.to raise_error(ArgumentError, 'dark_variant and auto_dark are mutually exclusive')
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end
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end
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end
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end
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