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rails--rails/activestorage/test/models/variant_test.rb

223 lines
7.3 KiB
Ruby

# frozen_string_literal: true
require "test_helper"
require "database/setup"
require "minitest/mock"
class ActiveStorage::VariantTest < ActiveSupport::TestCase
setup do
@was_tracking, ActiveStorage.track_variants = ActiveStorage.track_variants, false
end
teardown do
ActiveStorage.track_variants = @was_tracking
end
test "variations have the same key for different types of the same transformation" do
blob = create_file_blob(filename: "racecar.jpg")
variant_a = blob.variant(resize_to_limit: [100, 100])
variant_b = blob.variant("resize_to_limit" => [100, 100])
assert_equal variant_a.key, variant_b.key
end
test "resized variation of JPEG blob" do
blob = create_file_blob(filename: "racecar.jpg")
variant = blob.variant(resize_to_limit: [100, 100]).processed
assert_match(/racecar\.jpg/, variant.url)
image = read_image(variant)
assert_equal 100, image.width
assert_equal 67, image.height
end
test "resized and monochrome variation of JPEG blob" do
blob = create_file_blob(filename: "racecar.jpg")
variant = blob.variant(resize_to_limit: [100, 100], colourspace: "b-w").processed
assert_match(/racecar\.jpg/, variant.url)
image = read_image(variant)
assert_equal 100, image.width
assert_equal 67, image.height
assert_match(/Gray/, image.colorspace)
end
test "monochrome with default variant_processor" do
blob = create_file_blob(filename: "racecar.jpg")
variant = blob.variant(colourspace: "b-w").processed
image = read_image(variant)
assert_match(/Gray/, image.colorspace)
end
test "disabled variation of JPEG blob" do
blob = create_file_blob(filename: "racecar.jpg")
variant = blob.variant(resize_to_limit: [100, 100], colourspace: "srgb").processed
assert_match(/racecar\.jpg/, variant.url)
image = read_image(variant)
assert_equal 100, image.width
assert_equal 67, image.height
assert_match(/RGB/, image.colorspace)
end
test "center-weighted crop of JPEG blob using :resize_to_fill" do
blob = create_file_blob(filename: "racecar.jpg")
variant = blob.variant(resize_to_fill: [100, 100]).processed
assert_match(/racecar\.jpg/, variant.url)
image = read_image(variant)
assert_equal 100, image.width
assert_equal 100, image.height
end
test "resized variation of PSD blob" do
blob = create_file_blob(filename: "icon.psd", content_type: "image/vnd.adobe.photoshop")
variant = blob.variant(resize_to_limit: [20, 20]).processed
assert_match(/icon\.png/, variant.url)
image = read_image(variant)
assert_equal "PNG", image.type
assert_equal 20, image.width
assert_equal 20, image.height
end
test "resized variation of ICO blob" do
blob = create_file_blob(filename: "favicon.ico", content_type: "image/vnd.microsoft.icon")
variant = blob.variant(resize_to_limit: [20, 20]).processed
assert_match(/icon\.png/, variant.url)
image = read_image(variant)
assert_equal "PNG", image.type
assert_equal 20, image.width
assert_equal 20, image.height
end
test "resized variation of TIFF blob" do
blob = create_file_blob(filename: "racecar.tif")
variant = blob.variant(resize_to_limit: [50, 50]).processed
assert_match(/racecar\.png/, variant.url)
image = read_image(variant)
assert_equal "PNG", image.type
assert_equal 50, image.width
assert_equal 33, image.height
end
test "resized variation of BMP blob" do
blob = create_file_blob(filename: "colors.bmp", content_type: "image/bmp")
variant = blob.variant(resize_to_limit: [15, 15]).processed
assert_match(/colors\.png/, variant.url)
image = read_image(variant)
assert_equal "PNG", image.type
assert_equal 15, image.width
assert_equal 8, image.height
end
test "optimized variation of GIF blob" do
blob = create_file_blob(filename: "image.gif", content_type: "image/gif")
process_variants_with :vips do
assert_nothing_raised do
blob.variant(saver: { optimize_gif_frames: true, optimize_gif_transparency: true }).processed
end
end
process_variants_with :mini_magick do
assert_nothing_raised do
blob.variant(layers: "Optimize").processed
end
end
end
test "PNG variation of JPEG blob with lowercase format" do
blob = create_file_blob(filename: "racecar.jpg")
variant = blob.variant(format: :png).processed
assert_equal "racecar.png", variant.filename.to_s
assert_equal "image/png", variant.content_type
assert_equal "PNG", read_image(variant).type
end
test "PNG variation of JPEG blob with uppercase format" do
blob = create_file_blob(filename: "racecar.jpg")
variant = blob.variant(format: "PNG").processed
assert_equal "racecar.png", variant.filename.to_s
assert_equal "image/png", variant.content_type
assert_equal "PNG", read_image(variant).type
end
test "variation of invariable blob" do
assert_raises ActiveStorage::InvariableError do
create_file_blob(filename: "report.pdf", content_type: "application/pdf").variant(resize_to_limit: [100, 100])
end
end
test "url doesn't grow in length despite long variant options" do
process_variants_with :mini_magick do
blob = create_file_blob(filename: "racecar.jpg")
variant = blob.variant(font: "a" * 10_000).processed
assert_operator variant.url.length, :<, 785
end
end
test "thumbnail variation of JPEG blob processed with VIPS" do
process_variants_with :vips do
blob = create_file_blob(filename: "racecar.jpg")
variant = blob.variant(thumbnail_image: 100).processed
image = read_image(variant)
assert_equal 100, image.width
assert_equal 67, image.height
end
end
test "thumbnail variation of extensionless GIF blob processed with VIPS" do
process_variants_with :vips do
blob = ActiveStorage::Blob.create_and_upload!(io: file_fixture("image.gif").open, filename: "image", content_type: "image/gif")
variant = blob.variant(resize_to_fit: [100, 100]).processed
image = read_image(variant)
assert_equal "image.gif", variant.filename.to_s
assert_equal "image/gif", variant.content_type
assert_equal "GIF", image.type
assert_equal 100, image.width
assert_equal 100, image.height
end
end
test "passes content_type on upload" do
blob = create_file_blob(filename: "racecar.jpg", content_type: "image/jpeg")
mock_upload = lambda do |_, _, options = {}|
assert_equal "image/jpeg", options[:content_type]
end
blob.service.stub(:upload, mock_upload) do
blob.variant(resize_to_limit: [100, 100]).processed
end
end
test "doesn't crash content_type not recognized by mini_mime" do
blob = create_file_blob(filename: "racecar.jpg")
# image/jpg is not recognised by mini_mime (image/jpeg is correct)
blob.update(content_type: "image/jpg")
assert_nothing_raised do
blob.variant(resize_to_limit: [100, 100])
end
assert_nil blob.send(:format)
assert_equal :png, blob.send(:default_variant_format)
end
private
def process_variants_with(processor)
previous_processor, ActiveStorage.variant_processor = ActiveStorage.variant_processor, processor
yield
rescue LoadError
ENV["CI"] ? raise : skip("Variant processor #{processor.inspect} is not installed")
ensure
ActiveStorage.variant_processor = previous_processor
end
end