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# frozen_string_literal: true
require "test_helper"
require "database/setup"
require "active_support/testing/method_call_assertions"
class ActiveStorage::BlobTest < ActiveSupport::TestCase
include ActiveSupport::Testing::MethodCallAssertions
test "unattached scope" do
[ create_blob(filename: "funky.jpg"), create_blob(filename: "town.jpg") ].tap do |blobs|
User.create! name: "DHH", avatar: blobs.first
assert_includes ActiveStorage::Blob.unattached, blobs.second
assert_not_includes ActiveStorage::Blob.unattached, blobs.first
User.create! name: "Jason", avatar: blobs.second
assert_not_includes ActiveStorage::Blob.unattached, blobs.second
end
end
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 "create after upload extracts content type from data" do
blob = create_file_blob content_type: "application/octet-stream"
assert_equal "image/jpeg", blob.content_type
end
test "create after upload extracts content type from filename" do
blob = create_blob content_type: "application/octet-stream"
assert_equal "text/plain", blob.content_type
end
test "create after upload extracts content_type from io when no content_type given and identify: false" do
blob = create_blob content_type: nil, identify: false
assert_equal "text/plain", blob.content_type
end
test "create after upload uses content_type when identify: false" do
blob = create_blob data: "Article,dates,analysis\n1, 2, 3", filename: "table.csv", content_type: "text/csv", identify: false
assert_equal "text/csv", blob.content_type
end
test "image?" do
blob = create_file_blob filename: "racecar.jpg"
assert_predicate blob, :image?
assert_not_predicate blob, :audio?
end
test "video?" do
blob = create_file_blob(filename: "video.mp4", content_type: "video/mp4")
assert_predicate blob, :video?
assert_not_predicate blob, :audio?
end
test "text?" do
blob = create_blob data: "Hello world!"
assert_predicate blob, :text?
assert_not_predicate blob, :audio?
end
test "download yields chunks" do
blob = create_blob data: "a" * 5.0625.megabytes
chunks = []
blob.download do |chunk|
chunks << chunk
end
assert_equal 2, chunks.size
assert_equal "a" * 5.megabytes, chunks.first
assert_equal "a" * 64.kilobytes, chunks.second
end
test "open with integrity" do
create_file_blob(filename: "racecar.jpg").tap do |blob|
blob.open do |file|
assert file.binmode?
assert_equal 0, file.pos
assert File.basename(file.path).starts_with?("ActiveStorage-#{blob.id}-")
assert file.path.ends_with?(".jpg")
assert_equal file_fixture("racecar.jpg").binread, file.read, "Expected downloaded file to match fixture file"
end
end
end
test "open without integrity" do
create_blob(data: "Hello, world!").tap do |blob|
blob.update! checksum: Digest::MD5.base64digest("Goodbye, world!")
assert_raises ActiveStorage::IntegrityError do
blob.open { |file| flunk "Expected integrity check to fail" }
end
end
end
test "open in a custom tempdir" do
tempdir = Dir.mktmpdir
create_file_blob(filename: "racecar.jpg").open(tempdir: tempdir) do |file|
assert file.binmode?
assert_equal 0, file.pos
assert_match(/\.jpg\z/, file.path)
assert file.path.starts_with?(tempdir)
assert_equal file_fixture("racecar.jpg").binread, file.read, "Expected downloaded file to match fixture file"
end
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 "urls force attachment as content disposition for content types served as binary" do
blob = create_blob(content_type: "text/html")
freeze_time do
assert_equal expected_url_for(blob, disposition: :attachment), blob.service_url
assert_equal expected_url_for(blob, disposition: :attachment), blob.service_url(disposition: :inline)
end
end
test "urls allow for custom filename" do
blob = create_blob(filename: "original.txt")
new_filename = ActiveStorage::Filename.new("new.txt")
freeze_time do
assert_equal expected_url_for(blob), blob.service_url
assert_equal expected_url_for(blob, filename: new_filename), blob.service_url(filename: new_filename)
assert_equal expected_url_for(blob, filename: new_filename), blob.service_url(filename: "new.txt")
assert_equal expected_url_for(blob, filename: blob.filename), blob.service_url(filename: nil)
end
end
test "urls allow for custom options" do
blob = create_blob(filename: "original.txt")
arguments = [
blob.key,
expires_in: ActiveStorage.service_urls_expire_in,
disposition: :inline,
content_type: blob.content_type,
filename: blob.filename,
thumb_size: "300x300",
thumb_mode: "crop"
]
assert_called_with(blob.service, :url, arguments) do
blob.service_url(thumb_size: "300x300", thumb_mode: "crop")
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
test "purge fails when attachments exist" do
create_blob.tap do |blob|
User.create! name: "DHH", avatar: blob
assert_raises(ActiveRecord::InvalidForeignKey) { blob.purge }
assert ActiveStorage::Blob.service.exist?(blob.key)
end
end
private
def expected_url_for(blob, disposition: :inline, filename: nil)
filename ||= blob.filename
query_string = { content_type: blob.content_type, disposition: "#{disposition}; #{filename.parameters}" }.to_param
"https://example.com/rails/active_storage/disk/#{ActiveStorage.verifier.generate(blob.key, expires_in: 5.minutes, purpose: :blob_key)}/#{filename}?#{query_string}"
end
end
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