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# frozen_string_literal: true
require "test_helper"
require "database/setup"
class ActiveStorage::BlobTest < ActiveSupport::TestCase
test "create after upload sets byte size and checksum" do
data = "Hello world!"
blob = create_blob data: data
assert_equal data, blob.download
assert_equal data.length, blob.byte_size
assert_equal Digest::MD5.base64digest(data), blob.checksum
end
test "text?" do
blob = create_blob data: "Hello world!"
assert blob.text?
assert_not blob.audio?
end
test "download yields chunks" do
blob = create_blob data: "a" * 75.kilobytes
chunks = []
blob.download do |chunk|
chunks << chunk
end
assert_equal 2, chunks.size
assert_equal "a" * 64.kilobytes, chunks.first
assert_equal "a" * 11.kilobytes, chunks.second
end
test "urls expiring in 5 minutes" do
blob = create_blob
freeze_time do
assert_equal expected_url_for(blob), blob.service_url
assert_equal expected_url_for(blob, disposition: :attachment), blob.service_url(disposition: :attachment)
end
end
test "purge deletes file from external service" do
blob = create_blob
blob.purge
assert_not ActiveStorage::Blob.service.exist?(blob.key)
end
test "purge deletes variants from external service" do
blob = create_file_blob
variant = blob.variant(resize: "100>").processed
blob.purge
assert_not ActiveStorage::Blob.service.exist?(variant.key)
end
private
def expected_url_for(blob, disposition: :inline)
query_string = { content_type: blob.content_type, disposition: "#{disposition}; #{blob.filename.parameters}" }.to_param
"/rails/active_storage/disk/#{ActiveStorage.verifier.generate(blob.key, expires_in: 5.minutes, purpose: :blob_key)}/#{blob.filename}?#{query_string}"
end
end
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