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# encoding: utf-8
require 'spec_helper'
describe CarrierWave::MiniMagick do
before do
@klass = Class.new do
include CarrierWave::MiniMagick
end
@instance = @klass.new
FileUtils.cp(file_path('landscape.jpg'), file_path('landscape_copy.jpg'))
@instance.stub(:current_path).and_return(file_path('landscape_copy.jpg'))
@instance.stub(:cached?).and_return true
end
after do
FileUtils.rm(file_path('landscape_copy.jpg'))
end
describe "#convert" do
it "should convert from one format to another" do
@instance.convert('png')
img = ::MiniMagick::Image.open(@instance.current_path)
img['format'].should =~ /PNG/
end
end
describe '#resize_to_fill' do
it "should resize the image to exactly the given dimensions and maintain file type" do
@instance.resize_to_fill(200, 200)
@instance.should have_dimensions(200, 200)
::MiniMagick::Image.open(@instance.current_path)['format'].should =~ /JPEG/
end
it "should resize the image to exactly the given dimensions and maintain updated file type" do
@instance.convert('png')
@instance.resize_to_fill(200, 200)
@instance.should have_dimensions(200, 200)
::MiniMagick::Image.open(@instance.current_path)['format'].should =~ /PNG/
end
it "should scale up the image if it smaller than the given dimensions" do
@instance.resize_to_fill(1000, 1000)
@instance.should have_dimensions(1000, 1000)
end
end
describe '#resize_and_pad' do
it "should resize the image to exactly the given dimensions and maintain file type" do
@instance.resize_and_pad(200, 200)
@instance.should have_dimensions(200, 200)
::MiniMagick::Image.open(@instance.current_path)['format'].should =~ /JPEG/
end
it "should resize the image to exactly the given dimensions and maintain updated file type" do
@instance.convert('png')
@instance.resize_and_pad(200, 200)
@instance.should have_dimensions(200, 200)
::MiniMagick::Image.open(@instance.current_path)['format'].should =~ /PNG/
end
it "should scale up the image if it smaller than the given dimensions" do
@instance.resize_and_pad(1000, 1000)
@instance.should have_dimensions(1000, 1000)
end
it "should pad with white" do
@instance.resize_and_pad(200, 200)
color = color_of_pixel(@instance.current_path, 0, 0)
color.should include('#FFFFFF')
color.should_not include('#FFFFFF00')
end
it "should pad with transparent" do
@instance.convert('png')
@instance.resize_and_pad(200, 200, :transparent)
color = color_of_pixel(@instance.current_path, 0, 0)
color.should include('#FFFFFF00')
end
it "should not pad with transparent" do
@instance.resize_and_pad(200, 200, :transparent)
@instance.convert('png')
color = color_of_pixel(@instance.current_path, 0, 0)
color.should include('#FFFFFF')
color.should_not include('#FFFFFF00')
end
end
describe '#resize_to_fit' do
it "should resize the image to fit within the given dimensions and maintain file type" do
@instance.resize_to_fit(200, 200)
@instance.should have_dimensions(200, 150)
::MiniMagick::Image.open(@instance.current_path)['format'].should =~ /JPEG/
end
it "should resize the image to fit within the given dimensions and maintain updated file type" do
@instance.convert('png')
@instance.resize_to_fit(200, 200)
@instance.should have_dimensions(200, 150)
::MiniMagick::Image.open(@instance.current_path)['format'].should =~ /PNG/
end
it "should scale up the image if it smaller than the given dimensions" do
@instance.resize_to_fit(1000, 1000)
@instance.should have_dimensions(1000, 750)
end
end
describe '#resize_to_limit' do
it "should resize the image to fit within the given dimensions and maintain file type" do
@instance.resize_to_limit(200, 200)
@instance.should have_dimensions(200, 150)
::MiniMagick::Image.open(@instance.current_path)['format'].should =~ /JPEG/
end
it "should resize the image to fit within the given dimensions and maintain updated file type" do
@instance.convert('png')
@instance.resize_to_limit(200, 200)
@instance.should have_dimensions(200, 150)
::MiniMagick::Image.open(@instance.current_path)['format'].should =~ /PNG/
end
it "should not scale up the image if it smaller than the given dimensions" do
@instance.resize_to_limit(1000, 1000)
@instance.should have_dimensions(640, 480)
end
end
describe "test errors" do
context "invalid image file" do
before do
File.open(@instance.current_path, 'w') do |f|
f.puts "bogus"
end
end
it "should fail to process a non image file" do
lambda {@instance.resize_to_limit(200, 200)}.should raise_exception(CarrierWave::ProcessingError, /^Failed to manipulate with MiniMagick, maybe it is not an image\? Original Error:/)
end
it "should use 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? MiniMagick foutmelding: %{e}"
}
}) do
lambda {@instance.resize_to_limit(200, 200)}.should raise_exception(CarrierWave::ProcessingError, /^Kon bestand niet met MiniMagick bewerken, misschien is het geen beeld bestand\? MiniMagick foutmelding:/)
end
end
it "should not suppress errors when translation is unavailable" do
change_locale_and_store_translations(:foo, {}) do
lambda do
@instance.resize_to_limit(200, 200)
end.should raise_exception( CarrierWave::ProcessingError, /Not a JPEG/ )
end
end
end
end
end
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