discourse/spec/models/optimized_image_spec.rb

139 lines
3.2 KiB
Ruby

require 'spec_helper'
describe OptimizedImage do
it { should belong_to :upload }
let(:upload) { build(:upload) }
before { upload.id = 42 }
describe ".create_for" do
context "when using an internal store" do
let(:store) { FakeInternalStore.new }
before { Discourse.stubs(:store).returns(store) }
context "when an error happened while generating the thumbnail" do
it "returns nil" do
OptimizedImage.expects(:resize).returns(false)
OptimizedImage.create_for(upload, 100, 200).should be_nil
end
end
context "when the thumbnail is properly generated" do
before do
OptimizedImage.expects(:resize).returns(true)
end
it "does not download a copy of the original image" do
store.expects(:download).never
OptimizedImage.create_for(upload, 100, 200)
end
it "closes and removes the tempfile" do
Tempfile.any_instance.expects(:close!)
OptimizedImage.create_for(upload, 100, 200)
end
it "works" do
oi = OptimizedImage.create_for(upload, 100, 200)
oi.sha1.should == "da39a3ee5e6b4b0d3255bfef95601890afd80709"
oi.extension.should == ".png"
oi.width.should == 100
oi.height.should == 200
oi.url.should == "/internally/stored/optimized/image.png"
end
end
end
describe "external store" do
let(:store) { FakeExternalStore.new }
before { Discourse.stubs(:store).returns(store) }
context "when an error happened while generatign the thumbnail" do
it "returns nil" do
OptimizedImage.expects(:resize).returns(false)
OptimizedImage.create_for(upload, 100, 200).should be_nil
end
end
context "when the thumbnail is properly generated" do
before do
OptimizedImage.expects(:resize).returns(true)
end
it "downloads a copy of the original image" do
Tempfile.any_instance.expects(:close!).twice
store.expects(:download).with(upload).returns(Tempfile.new(["discourse-external", ".png"]))
OptimizedImage.create_for(upload, 100, 200)
end
it "works" do
oi = OptimizedImage.create_for(upload, 100, 200)
oi.sha1.should == "da39a3ee5e6b4b0d3255bfef95601890afd80709"
oi.extension.should == ".png"
oi.width.should == 100
oi.height.should == 200
oi.url.should == "/externally/stored/optimized/image.png"
end
end
end
end
end
class FakeInternalStore
def internal?
true
end
def external?
!internal?
end
def path_for(upload)
upload.url
end
def store_optimized_image(file, optimized_image)
"/internally/stored/optimized/image#{optimized_image.extension}"
end
end
class FakeExternalStore
def external?
true
end
def internal?
!external?
end
def store_optimized_image(file, optimized_image)
"/externally/stored/optimized/image#{optimized_image.extension}"
end
def download(upload)
extension = File.extname(upload.original_filename)
Tempfile.new(["discourse-s3", extension])
end
end