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require 'rails_helper'
describe Upload, type: :model do
describe 'assocations' do
it { is_expected.to belong_to(:model) }
end
describe 'validations' do
it { is_expected.to validate_presence_of(:size) }
it { is_expected.to validate_presence_of(:path) }
it { is_expected.to validate_presence_of(:model) }
it { is_expected.to validate_presence_of(:uploader) }
end
describe 'callbacks' do
context 'for a file above the checksum threshold' do
it 'schedules checksum calculation' do
stub_const('UploadChecksumWorker', spy)
upload = described_class.create(
path: __FILE__,
size: described_class::CHECKSUM_THRESHOLD + 1.kilobyte,
model: build_stubbed(:user),
uploader: double('ExampleUploader')
)
expect(UploadChecksumWorker)
.to have_received(:perform_async).with(upload.id)
end
end
context 'for a file at or below the checksum threshold' do
it 'calculates checksum immediately before save' do
upload = described_class.new(
path: __FILE__,
size: described_class::CHECKSUM_THRESHOLD,
model: build_stubbed(:user),
uploader: double('ExampleUploader')
)
expect { upload.save }
.to change { upload.checksum }.from(nil)
.to(a_string_matching(/\A\h{64}\z/))
end
end
end
describe '.remove_path' do
it 'removes all records at the given path' do
described_class.create!(
size: File.size(__FILE__),
path: __FILE__,
model: build_stubbed(:user),
uploader: 'AvatarUploader'
)
expect { described_class.remove_path(__FILE__) }
.to change { described_class.count }.from(1).to(0)
end
end
describe '.record' do
let(:fake_uploader) do
double(
file: double(size: 12_345),
relative_path: 'foo/bar.jpg',
model: build_stubbed(:user),
class: 'AvatarUploader'
)
end
it 'removes existing paths before creation' do
expect(described_class).to receive(:remove_path)
.with(fake_uploader.relative_path)
described_class.record(fake_uploader)
end
it 'creates a new record and assigns size, path, model, and uploader' do
upload = described_class.record(fake_uploader)
aggregate_failures do
expect(upload).to be_persisted
expect(upload.size).to eq fake_uploader.file.size
expect(upload.path).to eq fake_uploader.relative_path
expect(upload.model_id).to eq fake_uploader.model.id
expect(upload.model_type).to eq fake_uploader.model.class.to_s
expect(upload.uploader).to eq fake_uploader.class
end
end
end
describe '#absolute_path' do
it 'returns the path directly when already absolute' do
path = '/path/to/namespace/project/secret/file.jpg'
upload = described_class.new(path: path)
expect(upload).not_to receive(:uploader_class)
expect(upload.absolute_path).to eq path
end
it "delegates to the uploader's absolute_path method" do
uploader = spy('FakeUploader')
upload = described_class.new(path: 'secret/file.jpg')
expect(upload).to receive(:uploader_class).and_return(uploader)
upload.absolute_path
expect(uploader).to have_received(:absolute_path).with(upload)
end
end
describe '#calculate_checksum' do
it 'calculates the SHA256 sum' do
upload = described_class.new(
path: __FILE__,
size: described_class::CHECKSUM_THRESHOLD - 1.megabyte
)
expected = Digest::SHA256.file(__FILE__).hexdigest
expect { upload.calculate_checksum }
.to change { upload.checksum }.from(nil).to(expected)
end
it 'returns nil for a non-existant file' do
upload = described_class.new(
path: __FILE__,
size: described_class::CHECKSUM_THRESHOLD - 1.megabyte
)
expect(upload).to receive(:exist?).and_return(false)
expect(upload.calculate_checksum).to be_nil
end
end
describe '#exist?' do
it 'returns true when the file exists' do
upload = described_class.new(path: __FILE__)
expect(upload).to exist
end
it 'returns false when the file does not exist' do
upload = described_class.new(path: "#{__FILE__}-nope")
expect(upload).not_to exist
end
end
end
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