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Contents
require 'spec_helper'
require 'image_optim/worker/pngquant'
describe ImageOptim::Worker::Pngquant do
describe 'quality option' do
describe 'default' do
subject{ described_class::QUALITY_OPTION.default }
it{ is_expected.to match(/100\.\.100.*0\.\.100/) }
end
describe 'value' do
let(:subject){ described_class.new(ImageOptim.new, options).quality }
context 'when lossy not allowed' do
context 'by default' do
let(:options){ {} }
it{ is_expected.to eq(100..100) }
end
context 'when value is passed through options' do
let(:options){ {:quality => 10..90} }
it 'warns and keeps default' do
expect_any_instance_of(described_class).
to receive(:warn).with(/ignored in lossless mode/)
is_expected.to eq(100..100)
end
end
end
context 'when lossy allowed' do
context 'by default' do
let(:options){ {:allow_lossy => true} }
it{ is_expected.to eq(0..100) }
end
context 'when value is passed through options' do
let(:options){ {:allow_lossy => true, :quality => 10..90} }
it 'sets the value without warning' do
expect_any_instance_of(described_class).not_to receive(:warn)
is_expected.to eq(10..90)
end
end
context 'when passed range begin is less than 0' do
let(:options){ {:allow_lossy => true, :quality => -50..50} }
it 'sets begin to 0' do
is_expected.to eq(0..50)
end
end
context 'when passed range end is more than 100' do
let(:options){ {:allow_lossy => true, :quality => 50..150} }
it 'sets end to 100' do
is_expected.to eq(50..100)
end
end
end
end
end
end
Version data entries
14 entries across 14 versions & 2 rubygems