spec/shared/models/image_validations.rb
shared_examples "image validations" do |imageable_factory|
include ImagesHelper
include ImageablesHelper
let!(:image) { build(:image, imageable_factory.to_sym) }
let!(:imageable) { image.imageable }
let!(:acceptedcontenttypes) { imageable_accepted_content_types }
it "is valid" do
expect(image).to be_valid
end
it "is not valid without a title" do
image.title = nil
expect(image).not_to be_valid
end
it "is not valid without an attachment" do
image.attachment = nil
expect(image).not_to be_valid
end
it "is valid for all accepted content types" do
acceptedcontenttypes.each do |content_type|
extension = content_type.split("/").last
image.attachment = File.new("spec/fixtures/files/clippy.#{extension}")
expect(image).to be_valid
end
end
it "is not valid for png and gif image content types" do
["gif", "png"].each do |content_type|
extension = content_type.split("/").last
image.attachment = File.new("spec/fixtures/files/clippy.#{extension}")
expect(image).not_to be_valid
end
end
it "is not valid for attachments larger than imageable max_file_size definition" do
allow(image).to receive(:attachment_file_size).and_return(Image::MAX_IMAGE_SIZE + 1.byte)
expect(image).not_to be_valid
expect(image.errors[:attachment]).to include "must be in between 0 Bytes and 1 MB"
end
it "is not valid without a user_id" do
image.user_id = nil
expect(image).not_to be_valid
end
it "is not valid without a imageable_id" do
image.save
image.imageable_id = nil
expect(image).not_to be_valid
end
it "is not valid without a imageable_type" do
image.save
image.imageable_type = nil
expect(image).not_to be_valid
end
end