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# frozen_string_literal: true
require 'fast_spec_helper'
RSpec.describe Gitlab::Color do
describe ".of" do
described_class::Constants::COLOR_NAME_TO_HEX.each do |name, value|
it "parses #{name} to #{value}" do
expect(described_class.of(name)).to eq(value)
end
end
it 'parses hex literals as colors' do
expect(described_class.of('#fff')).to eq(described_class.new('#fff'))
expect(described_class.of('#fefefe')).to eq(described_class.new('#fefefe'))
end
it 'raises if the input is nil' do
expect { described_class.of(nil) }.to raise_error(ArgumentError)
end
it 'returns an invalid color if the input is not valid' do
expect(described_class.of('unknown color')).not_to be_valid
end
end
describe '#new' do
it 'handles nil values' do
expect(described_class.new(nil)).to eq(described_class.new(nil))
end
it 'strips input' do
expect(described_class.new(' abc ')).to eq(described_class.new('abc'))
end
end
describe '#valid?' do
described_class::Constants::COLOR_NAME_TO_HEX.each_key do |name|
specify "#{name} is a valid color" do
expect(described_class.of(name)).to be_valid
end
end
specify '#fff is a valid color' do
expect(described_class.new('#fff')).to be_valid
end
specify '#ffffff is a valid color' do
expect(described_class.new('#ffffff')).to be_valid
end
specify '#ABCDEF is a valid color' do
expect(described_class.new('#ABCDEF')).to be_valid
end
specify '#123456 is a valid color' do
expect(described_class.new('#123456')).to be_valid
end
specify '#1234567 is not a valid color' do
expect(described_class.new('#1234567')).not_to be_valid
end
specify 'fff is not a valid color' do
expect(described_class.new('fff')).not_to be_valid
end
specify '#deadbeaf is not a valid color' do
expect(described_class.new('#deadbeaf')).not_to be_valid
end
specify '#a1b2c3 is a valid color' do
expect(described_class.new('#a1b2c3')).to be_valid
end
specify 'nil is not a valid color' do
expect(described_class.new(nil)).not_to be_valid
end
end
describe '#light?' do
specify '#fff is light' do
expect(described_class.new('#fff')).to be_light
end
specify '#a7a7a7 is light' do
expect(described_class.new('#a7a7a7')).to be_light
end
specify '#a6a7a7 is dark' do
expect(described_class.new('#a6a7a7')).not_to be_light
end
specify '#000 is dark' do
expect(described_class.new('#000')).not_to be_light
end
specify 'invalid colors are not light' do
expect(described_class.new('not-a-color')).not_to be_light
end
end
describe '#contrast' do
context 'with light colors' do
it 'is dark' do
%w[#fff #fefefe #a7a7a7].each do |hex|
expect(described_class.new(hex)).to have_attributes(
contrast: described_class::Constants::DARK,
luminosity: :light
)
end
end
end
context 'with dark colors' do
it 'is light' do
%w[#000 #a6a7a7].each do |hex|
expect(described_class.new(hex)).to have_attributes(
contrast: described_class::Constants::LIGHT,
luminosity: :dark
)
end
end
end
end
describe 'as_json' do
it 'serializes correctly' do
expect(described_class.new('#f0f1f2').as_json).to eq('#f0f1f2')
end
end
end
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