spec/shared/models/acts_as_imageable.rb
shared_examples "acts as imageable" do |imageable_factory|
let!(:image) { build(:image, imageable_factory.to_sym) }
let!(:imageable) { image.imageable }
it "is valid" do
expect(image).to be_valid
end
describe "file extension" do
it "is not valid with '.png' extension" do
image.attachment = File.new("spec/fixtures/files/clippy.png")
expect(image).not_to be_valid
expect(image.errors[:attachment].size).to eq(1)
end
it "is not valid with '.gif' extension" do
image.attachment = File.new("spec/fixtures/files/clippy.gif")
expect(image).not_to be_valid
expect(image.errors[:attachment].size).to eq(1)
end
it "is valid with '.jpg' extension" do
image.attachment = File.new("spec/fixtures/files/clippy.jpg")
expect(image).to be_valid
end
end
describe "image dimmessions" do
it "is valid when image dimmessions are 475X475 at least" do
expect(image).to be_valid
end
it "is not valid when image dimmensions are smaller than 475X475" do
image.attachment = File.new("spec/fixtures/files/logo_header.jpg")
expect(image).not_to be_valid
end
end
describe "title" do
it "is not valid when correct image attached but no image title provided" do
image.title = ''
expect(image).not_to be_valid
end
it "is not valid when image title is too short" do
image.title = 'a' * 3
expect(image).not_to be_valid
end
it "is not valid when image title is too long" do
image.title = 'a' * 81
expect(image).not_to be_valid
end
end
it "image destroy should remove image from file storage" do
image.save
image_url = image.attachment.url
new_url = '/attachments/original/missing.png'
expect{ image.attachment.destroy }.to change{ image.attachment.url }.from(image_url).to(new_url)
end
end