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# frozen_string_literal: true
require 'fast_spec_helper'
RSpec.describe Gitlab::TabWidth, lib: true do
describe '.css_class_for_user' do
it 'returns default CSS class when user is nil' do
css_class = described_class.css_class_for_user(nil)
expect(css_class).to eq('tab-width-8')
end
it "returns CSS class for user's tab width", :aggregate_failures do
[1, 6, 12].each do |i|
user = double('user', tab_width: i)
css_class = described_class.css_class_for_user(user)
expect(css_class).to eq("tab-width-#{i}")
end
end
it 'raises if tab width is out of valid range', :aggregate_failures do
[0, 13, 'foo', nil].each do |i|
expect do
user = double('user', tab_width: i)
described_class.css_class_for_user(user)
end.to raise_error(ArgumentError)
end
end
end
end
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