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require 'spec_helper'
describe CarrierWave::MiniMagick do
let(:klass) { Class.new(CarrierWave::Uploader::Base) { include CarrierWave::MiniMagick } }
let(:instance) { klass.new }
let(:landscape_file_path) { file_path('landscape.jpg') }
let(:landscape_copy_file_path) { file_path('landscape_copy.jpg') }
before do
FileUtils.cp(landscape_file_path, landscape_copy_file_path)
allow(instance).to receive(:cached?).and_return true
allow(instance).to receive(:file).and_return(CarrierWave::SanitizedFile.new(landscape_copy_file_path))
end
after { FileUtils.rm(landscape_copy_file_path) if File.exist?(landscape_copy_file_path) }
describe "#convert" do
it "converts from one format to another" do
instance.convert('png')
expect(instance.file.extension).to eq('png')
expect(instance).to be_format('png')
expect(instance.file.content_type).to eq('image/png')
end
it "converts all pages when no page number is specified" do
expect_any_instance_of(::MiniMagick::Image).to receive(:format).with('png', nil).once
instance.convert('png')
end
it "converts specific page" do
expect_any_instance_of(::MiniMagick::Image).to receive(:format).with('png', 1).once
instance.convert('png', 1)
end
end
describe '#resize_to_fill' do
it "resizes the image to exactly the given dimensions and maintain file type" do
instance.resize_to_fill(200, 200)
expect(instance).to have_dimensions(200, 200)
expect(::MiniMagick::Image.open(instance.current_path)['format']).to match(/JPEG/)
end
it "resizes the image to exactly the given dimensions and maintain updated file type" do
instance.convert('png')
instance.resize_to_fill(200, 200)
expect(instance).to have_dimensions(200, 200)
expect(::MiniMagick::Image.open(instance.current_path)['format']).to match(/PNG/)
expect(instance.file.extension).to eq('png')
end
it "scales up the image if it smaller than the given dimensions" do
expect(::MiniMagick::Tool::Identify.new.verbose(instance.current_path).call).to_not include('Quality: 70')
instance.resize_to_fill(1000, 1000, combine_options: { quality: 70 })
expect(instance).to have_dimensions(1000, 1000)
expect(::MiniMagick::Tool::Identify.new.verbose(instance.current_path).call).to include('Quality: 70')
end
end
describe '#resize_and_pad' do
it "resizes the image to exactly the given dimensions and maintain file type" do
instance.resize_and_pad(200, 200)
expect(instance).to have_dimensions(200, 200)
expect(::MiniMagick::Image.open(instance.current_path)['format']).to match(/JPEG/)
end
it "resizes the image to exactly the given dimensions and maintain updated file type" do
instance.convert('png')
instance.resize_and_pad(200, 200)
expect(instance).to have_dimensions(200, 200)
expect(::MiniMagick::Image.open(instance.current_path)['format']).to match(/PNG/)
end
it "scales up the image if it smaller than the given dimensions" do
instance.resize_and_pad(1000, 1000)
expect(instance).to have_dimensions(1000, 1000)
end
it "pads with white" do
instance.resize_and_pad(200, 200)
color_of_pixel(instance.current_path, 0, 0).tap do |color|
expect(color).to include('#FFFFFF')
expect(color).not_to include('#FFFFFF00')
end
end
it "pads with transparent" do
instance.convert('png')
instance.resize_and_pad(200, 200, :transparent)
expect(color_of_pixel(instance.current_path, 0, 0)).to include('#FFFFFF00')
end
it "doesn't pad with transparent" do
instance.resize_and_pad(200, 200, :transparent)
instance.convert('png')
color_of_pixel(instance.current_path, 0, 0).tap do |color|
expect(color).to include('#FFFFFF')
expect(color).not_to include('#FFFFFF00')
end
end
it 'accepts combine_options and set quality' do
expect(::MiniMagick::Tool::Identify.new.verbose(instance.current_path).call).to_not include('Quality: 70')
instance.resize_and_pad(1000, 1000, combine_options: {quality: 70})
expect(instance).to have_dimensions(1000, 1000)
expect(::MiniMagick::Tool::Identify.new.verbose(instance.current_path).call).to include('Quality: 70')
end
it 'accepts non-argument option as combine_options' do
expect(::MiniMagick::Tool::Identify.new.verbose(instance.current_path).call).to include('exif:ColorSpace: 1')
instance.resize_and_pad(1000, 1000, combine_options: {strip: nil})
expect(instance).to have_dimensions(1000, 1000)
expect(::MiniMagick::Tool::Identify.new.verbose(instance.current_path).call).to_not include('exif:ColorSpace: 1')
end
end
describe '#resize_to_fit' do
it "resizes the image to fit within the given dimensions and maintain file type" do
instance.resize_to_fit(200, 200)
expect(instance).to have_dimensions(200, 150)
expect(::MiniMagick::Image.open(instance.current_path)['format']).to match(/JPEG/)
end
it "resizes the image to fit within the given dimensions and maintain updated file type" do
instance.convert('png')
instance.resize_to_fit(200, 200)
expect(instance).to have_dimensions(200, 150)
expect(::MiniMagick::Image.open(instance.current_path)['format']).to match(/PNG/)
expect(instance.file.extension).to eq('png')
end
it 'scales up the image if it smaller than the given dimensions and set quality' do
expect(::MiniMagick::Tool::Identify.new.verbose(instance.current_path).call).to_not include('Quality: 70')
instance.resize_to_fit(1000, 1000, combine_options: {quality: 70})
expect(instance).to have_dimensions(1000, 750)
expect(::MiniMagick::Tool::Identify.new.verbose(instance.current_path).call).to include('Quality: 70')
end
end
describe '#resize_to_limit' do
it 'resizes the image to fit within the given dimensions, maintain file type and set quality' do
expect(::MiniMagick::Tool::Identify.new.verbose(instance.current_path).call).to_not include('Quality: 70')
instance.resize_to_limit(200, 200, combine_options: {quality: 70})
expect(instance).to have_dimensions(200, 150)
expect(::MiniMagick::Image.open(instance.current_path)['format']).to match(/JPEG/)
expect(::MiniMagick::Tool::Identify.new.verbose(instance.current_path).call).to include('Quality: 70')
end
it "resizes the image to fit within the given dimensions and maintain updated file type" do
instance.convert('png')
instance.resize_to_limit(200, 200)
expect(instance).to have_dimensions(200, 150)
expect(::MiniMagick::Image.open(instance.current_path)['format']).to match(/PNG/)
expect(instance.file.extension).to eq('png')
end
it "doesn't scale up the image if it smaller than the given dimensions" do
instance.resize_to_limit(1000, 1000)
expect(instance).to have_dimensions(640, 480)
end
end
describe "#width and #height" do
it "returns the width and height of the image" do
instance.resize_to_fill(200, 300)
expect(instance.width).to eq(200)
expect(instance.height).to eq(300)
end
end
describe '#dimension_from' do
it 'evaluates procs' do
instance.resize_to_fill(Proc.new { 200 }, Proc.new { 200 })
expect(instance).to have_dimensions(200, 200)
end
it 'evaluates procs with uploader instance' do
width_argument = nil
width = Proc.new do |uploader|
width_argument = uploader
200
end
height_argument = nil
height = Proc.new do |uploader|
height_argument = uploader
200
end
instance.resize_to_fill(width, height)
expect(instance).to have_dimensions(200, 200)
expect(instance).to eq(width_argument)
expect(instance).to eq(height_argument)
end
end
describe "test errors" do
context "invalid image file" do
before { File.open(instance.current_path, 'w') { |f| f.puts "bogus" } }
it "fails to process a non image file" do
expect { instance.resize_to_limit(200, 200) }.to raise_exception(CarrierWave::ProcessingError, /^Failed to manipulate with MiniMagick, maybe it is not an image\?/)
end
it "uses I18n" do
change_locale_and_store_translations(:nl, :errors => {
:messages => {
:mini_magick_processing_error => "Kon bestand niet met MiniMagick bewerken, misschien is het geen beeld bestand?"
}
}) do
expect {instance.resize_to_limit(200, 200)}.to raise_exception(CarrierWave::ProcessingError, /^Kon bestand niet met MiniMagick bewerken, misschien is het geen beeld bestand\?/)
end
end
it "doesn't suppress errors when translation is unavailable" do
change_locale_and_store_translations(:foo, {}) do
expect { instance.resize_to_limit(200, 200) }.to raise_exception( CarrierWave::ProcessingError )
end
end
context ":en locale is not available and enforce_available_locales is true" do
it "doesn't suppress errors" do
change_and_enforece_available_locales(:nl, [:nl, :foo]) do
expect { instance.resize_to_limit(200, 200) }.to raise_exception(CarrierWave::ProcessingError)
end
end
end
end
end
end
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