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# frozen_string_literal: true
require 'test_helper'
class ImageUploaderTest < ActiveSupport::TestCase
include ActiveJob::TestHelper
setup do
queue_adapter.perform_enqueued_jobs = true
end
test 'should correctly identify image metadata' do
setup_image_tests
assert_equal %w[image/jpeg image/jpeg image/gif image/png image/png image/gif image/jpeg image/svg+xml], @tests.map(&:image_mime_type)
assert_equal %w[JPEG JPEG GIF PNG PNG GIF JPEG SVG], @tests.map(&:file_type)
@tests.each do |t|
t.reload
assert_equal `du -b #{t.image.path}`.split[0].to_i, t.image.size
[:nw, :ne, :sw, :se].each do |i|
assert_not_nil t.intensity[i]
end
end
animated = [@pinkie_spy_1, @octavia_1]
animated.each { |t| assert t.is_animated? }
(@tests - animated).each { |t| assert_not t.is_animated? }
end
test 'should detect correct size for animated images' do
@gif = create(:gif_first_frame_incorrect_size)
assert_equal [638, 388], [@gif.image.width, @gif.image.height]
end
test 'should correctly identify vector images' do
@vector = create(:vector)
assert_equal [1024, 1024], [@vector.image.width, @vector.image.height]
assert_equal 'svg', @vector.image.format
assert_equal 'image/svg+xml', @vector..image.mime_type
end
# Returns true if all thumbnails defined exist for this image and the symlinks point at valid places
def has_thumbnails?(image)
ImageUploader::VERSIONS.each_pair do |version, _|
path = image.image.version_path(version, hidden: image.hidden_from_users?)
next if File.exist?(path) && (File.symlink?(path) ? File.exist?(File.readlink(path)) : true) rescue nil
return false
end
true
end
test 'should generate thumbnails' do
setup_image_tests
@tests.each do |t|
t.reload
assert PostRepairer.new(t).image_readable?
assert has_thumbnails?(t)
end
end
test 'should change thumb paths when hidden' do
@image = create(:post)
@image.save!
unhidden_path = @image.image.version_dir(hidden: @image.hidden_from_users?)
PostHider.new(@image, reason: 'Exterminate!').save
hidden_path = @image.image.version_dir(hidden: @image.hidden_from_users?)
assert_not_equal unhidden_path, hidden_path
PostUnhider.new(@image).save
assert_equal unhidden_path, @image.image.version_dir(hidden: @image.hidden_from_users?)
end
test 'should rotate JPEG images that have EXIF orientation' do
@jpeg = create(:jpeg_exif_orientation) # 180°
# compare intensities to assert that the image was rotated by 180°
compare_ints = ->(ints_before, ints_after, message) do
assert_int = ->(k1, k2, msg) { assert_in_delta ints_before[k1], ints_after[k2], 0.2, msg } # allow some wiggle room for thumbs and lossy rotation
# Original is: 180° rotation should result in:
# NW | NE SE | SW
# SW | SE NE | NW
assert_int.call :nw, :se, message
assert_int.call :ne, :sw, message
assert_int.call :sw, :ne, message
assert_int.call :se, :nw, message
end
ints_before = ImageIntensities.file(@jpeg.source_url) # the original image
compare_ints.call ints_before, ImageIntensities.file(@jpeg.image.path), 'source image'
end
test 'Image#destroy_content! should destroy the image files if it was hidden' do
@image = create(:post)
original_path = @image.image.path
@image.save!
PostHider.new(@image, reason: '>.<').save
ImageDestroyer.new(@image).save
# Ensure the image file content has been fully deleted.
# This is particularly of utmost priority.
assert_not File.exist?(original_path)
assert_not File.exist?(@image.image.version_dir(hidden: true))
assert_not File.exist?(@image.image.version_dir(hidden: false))
end
def setup_image_tests
# Note that processing all test fixtures takes a while. Only call this method if you really need it.
@dedupe_1 = create(:dedupe_image_1)
@dedupe_2 = create(:dedupe_image_2)
@pinkie_spy_1 = create(:pinkie_spy_1)
@pinkie_spy_2 = create(:pinkie_spy_2)
@pinkie_not_spy = create(:pinkie_not_spy)
@octavia_1 = create(:octavia_1)
@octavia_2 = create(:octavia_2)
@vector = create(:vector)
@tests = [@dedupe_1, @dedupe_2, @pinkie_spy_1, @pinkie_spy_2, @pinkie_not_spy, @octavia_1, @octavia_2, @vector]
end
end
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