demarches-normaliennes/spec/services/watermark_service_spec.rb

23 lines
767 B
Ruby

RSpec.describe WatermarkService do
let(:image) { file_fixture("logo_test_procedure.png") }
let(:watermark_service) { WatermarkService.new }
describe '#process' do
it 'returns a tempfile if watermarking succeeds' do
Tempfile.create do |output|
watermark_service.process(image, output)
# output size should always be a little greater than input size
expect(output.size).to be_between(image.size, image.size * 1.5)
end
end
it 'returns nil if metadata is blank' do
allow(watermark_service).to receive(:image_metadata).and_return(nil)
Tempfile.create do |output|
expect(watermark_service.process(image.to_path, output)).to be_nil
expect(output.size).to eq(0)
end
end
end
end