Files
danbooru/test/unit/media_file_test.rb
evazion 3172031caa media assets: track corrupted files in media metadata.
If a media asset is corrupt, include the error message from libvips or
ffmpeg in the "Vips:Error" or "FFmpeg:Error" fields in the media
metadata table.

Corrupt files can't be uploaded nowadays, but they could be in the past,
so we have some old corrupted files that we can't generate thumbnails
for. This lets us mark these files in the metadata so they're findable
with the tag search `exif:Vips:Error`.

Known bug: Vips has a single global error buffer that is shared between
threads and that isn't cleared between operations. So we can't reliably
get the actual error message because it may pick up errors from other
threads, or from previous operations in the same thread.
2022-11-02 20:48:15 -05:00

611 lines
27 KiB
Ruby

require 'test_helper'
class MediaFileTest < ActiveSupport::TestCase
context "#dimensions" do
should "determine the correct dimensions for a jpeg file" do
assert_equal([500, 335], MediaFile.open("test/files/test.jpg").dimensions)
assert_equal([668, 996], MediaFile.open("test/files/test-blank.jpg").dimensions)
assert_equal([529, 600], MediaFile.open("test/files/test-exif-small.jpg").dimensions)
assert_equal([1356, 911], MediaFile.open("test/files/test-large.jpg").dimensions)
end
should "determine the correct dimensions for a png file" do
assert_equal([768, 1024], MediaFile.open("test/files/test.png").dimensions)
assert_equal([150, 150], MediaFile.open("test/files/apng/normal_apng.png").dimensions)
assert_equal([85, 62], MediaFile.open("test/files/alpha.png").dimensions)
end
should "determine the correct dimensions for a gif file" do
assert_equal([400, 400], MediaFile.open("test/files/test.gif").dimensions)
assert_equal([86, 52], MediaFile.open("test/files/test-animated-86x52.gif").dimensions)
assert_equal([32, 32], MediaFile.open("test/files/test-static-32x32.gif").dimensions)
end
should "determine the correct dimensions for a WebP file" do
assert_equal([550, 368], MediaFile.open("test/files/webp/fjord.webp").dimensions)
end
should "determine the correct dimensions for an AVIF file" do
assert_equal([2048, 858], MediaFile.open("test/files/avif/hdr_cosmos01000_cicp9-16-9_yuv420_limited_qp40.avif").dimensions)
end
should "determine the correct dimensions for a webm file" do
skip unless MediaFile.videos_enabled?
assert_equal([512, 512], MediaFile.open("test/files/webm/test-512x512.webm").dimensions)
end
should "determine the correct dimensions for a mp4 file" do
skip unless MediaFile.videos_enabled?
assert_equal([300, 300], MediaFile.open("test/files/mp4/test-300x300.mp4").dimensions)
end
should "determine the correct dimensions for a ugoira file" do
skip unless MediaFile.videos_enabled?
frame_delays = JSON.parse(File.read("test/files/ugoira.json")).pluck("delay")
assert_equal([60, 60], MediaFile.open("test/files/ugoira.zip", frame_delays: frame_delays).dimensions)
end
should "determine the correct dimensions for a flash file" do
assert_equal([608, 757], MediaFile.open("test/files/compressed.swf").dimensions)
end
should "work if called twice" do
mf = MediaFile.open("test/files/test.jpg")
assert_equal([500, 335], mf.dimensions)
assert_equal([500, 335], mf.dimensions)
mf = MediaFile.open("test/files/compressed.swf")
assert_equal([608, 757], mf.dimensions)
assert_equal([608, 757], mf.dimensions)
end
should "work for a video if called twice" do
skip unless MediaFile.videos_enabled?
mf = MediaFile.open("test/files/webm/test-512x512.webm")
assert_equal([512, 512], mf.dimensions)
assert_equal([512, 512], mf.dimensions)
frame_delays = JSON.parse(File.read("test/files/ugoira.json")).pluck("delay")
mf = MediaFile.open("test/files/ugoira.zip", frame_delays: frame_delays)
assert_equal([60, 60], mf.dimensions)
assert_equal([60, 60], mf.dimensions)
end
end
context "#file_ext" do
should "determine the correct extension for a jpeg file" do
assert_equal(:jpg, MediaFile.open("test/files/test.jpg").file_ext)
assert_equal(:jpg, MediaFile.open("test/files/test-blank.jpg").file_ext)
assert_equal(:jpg, MediaFile.open("test/files/test-exif-small.jpg").file_ext)
assert_equal(:jpg, MediaFile.open("test/files/test-large.jpg").file_ext)
end
should "determine the correct extension for a png file" do
assert_equal(:png, MediaFile.open("test/files/test.png").file_ext)
assert_equal(:png, MediaFile.open("test/files/apng/normal_apng.png").file_ext)
assert_equal(:png, MediaFile.open("test/files/alpha.png").file_ext)
end
should "determine the correct extension for a gif file" do
assert_equal(:gif, MediaFile.open("test/files/test.gif").file_ext)
assert_equal(:gif, MediaFile.open("test/files/test-animated-86x52.gif").file_ext)
assert_equal(:gif, MediaFile.open("test/files/test-static-32x32.gif").file_ext)
end
should "determine the correct extension for a WebP file" do
Dir["test/files/webp/*.webp"].each do |file|
assert_equal(:webp, MediaFile.open(file).file_ext)
end
end
should "determine the correct extension for an AVIF file" do
Dir["test/files/avif/*.avif"].each do |file|
assert_equal(:avif, MediaFile.open(file).file_ext)
end
end
should "determine the correct extension for a webm file" do
assert_equal(:webm, MediaFile.open("test/files/webm/test-512x512.webm").file_ext)
end
should "determine the correct extension for a mp4 file" do
assert_equal(:mp4, MediaFile.open("test/files/mp4/test-300x300.mp4").file_ext)
end
should "determine the correct extension for a m4v file" do
assert_equal(:mp4, MediaFile.open("test/files/mp4/test-audio.m4v").file_ext)
end
should "determine the correct extension for an iso5 mp4 file" do
assert_equal(:mp4, MediaFile.open("test/files/mp4/test-iso5.mp4").file_ext)
end
should "determine the correct extension for a ugoira file" do
assert_equal(:zip, MediaFile.open("test/files/ugoira.zip").file_ext)
end
should "determine the correct extension for a flash file" do
assert_equal(:swf, MediaFile.open("test/files/compressed.swf").file_ext)
end
should "not fail for empty files" do
assert_equal(:bin, MediaFile.open("test/files/test-empty.bin").file_ext)
end
end
should "determine the correct md5 for a jpeg file" do
assert_equal("ecef68c44edb8a0d6a3070b5f8e8ee76", MediaFile.open("test/files/test.jpg").md5)
end
should "determine the correct filesize for a jpeg file" do
assert_equal(28086, MediaFile.open("test/files/test.jpg").file_size)
end
context "#preview" do
should "generate a preview image for a static image" do
assert_equal([150, 101], MediaFile.open("test/files/test.jpg").preview(150, 150).dimensions)
assert_equal([113, 150], MediaFile.open("test/files/test.png").preview(150, 150).dimensions)
assert_equal([150, 150], MediaFile.open("test/files/test.gif").preview(150, 150).dimensions)
assert_equal([150, 100], MediaFile.open("test/files/webp/fjord.webp").preview(150, 150).dimensions)
assert_equal([150, 63], MediaFile.open("test/files/avif/hdr_cosmos01000_cicp9-16-9_yuv420_limited_qp40.avif").preview(150, 150).dimensions)
end
should "generate a preview image for an animated image" do
skip unless MediaFile.videos_enabled?
assert_equal([86, 52], MediaFile.open("test/files/test-animated-86x52.gif").preview(150, 150).dimensions)
assert_equal([150, 105], MediaFile.open("test/files/test-animated-400x281.gif").preview(150, 150).dimensions)
assert_equal([150, 150], MediaFile.open("test/files/test-animated-256x256.png").preview(150, 150).dimensions)
assert_equal([150, 150], MediaFile.open("test/files/apng/normal_apng.png").preview(150, 150).dimensions)
end
should "generate a preview image for a video" do
skip unless MediaFile.videos_enabled?
assert_equal([150, 150], MediaFile.open("test/files/webm/test-512x512.webm").preview(150, 150).dimensions)
assert_equal([150, 150], MediaFile.open("test/files/mp4/test-300x300.mp4").preview(150, 150).dimensions)
end
should "be able to fit to width only" do
assert_equal([400, 268], MediaFile.open("test/files/test.jpg").preview(400, nil).dimensions)
end
end
context "for a ugoira" do
setup do
skip unless MediaFile::Ugoira.videos_enabled?
frame_delays = JSON.parse(File.read("test/files/ugoira.json")).pluck("delay")
@ugoira = MediaFile.open("test/files/ugoira.zip", frame_delays: frame_delays)
end
should "generate a preview" do
assert_equal([60, 60], @ugoira.preview(150, 150).dimensions)
end
should "get the duration" do
assert_equal(1.05, @ugoira.duration)
assert_equal(4.76, @ugoira.frame_rate.round(2))
assert_equal(5, @ugoira.frame_count)
end
should "convert to a webm" do
webm = @ugoira.convert
assert_equal(:webm, webm.file_ext)
assert_equal([60, 60], webm.dimensions)
end
end
context "for an mp4 file " do
should "detect videos with audio" do
assert_equal(true, MediaFile.open("test/files/mp4/test-audio.mp4").has_audio?)
assert_equal(false, MediaFile.open("test/files/mp4/test-300x300.mp4").has_audio?)
end
should "determine the duration of the video" do
file = MediaFile.open("test/files/mp4/test-audio.mp4")
assert_equal(false, file.is_corrupt?)
assert_equal(1.002667, file.duration)
assert_equal(10/1.002667, file.frame_rate)
assert_equal(10, file.frame_count)
file = MediaFile.open("test/files/mp4/test-300x300.mp4")
assert_equal(false, file.is_corrupt?)
assert_equal(5.7, file.duration)
assert_equal(1.75, file.frame_rate.round(2))
assert_equal(10, file.frame_count)
end
should "determine the pixel format of the video" do
assert_equal("yuv420p", MediaFile.open("test/files/mp4/test-300x300-av1.mp4").pix_fmt)
assert_equal("yuv420p", MediaFile.open("test/files/mp4/test-300x300-h265.mp4").pix_fmt)
assert_equal("yuv420p", MediaFile.open("test/files/mp4/test-300x300-vp9.mp4").pix_fmt)
assert_equal("yuv420p", MediaFile.open("test/files/mp4/test-300x300.mp4").pix_fmt)
assert_equal("yuv420p", MediaFile.open("test/files/mp4/test-audio.m4v").pix_fmt)
assert_equal("yuv420p", MediaFile.open("test/files/mp4/test-audio.mp4").pix_fmt)
assert_equal("yuv420p", MediaFile.open("test/files/mp4/test-300x300-iso4.mp4").pix_fmt)
assert_equal("yuv420p", MediaFile.open("test/files/mp4/test-iso5.mp4").pix_fmt)
assert_equal("yuv444p", MediaFile.open("test/files/mp4/test-300x300-yuv444p-h264.mp4").pix_fmt)
assert_equal("yuvj420p", MediaFile.open("test/files/mp4/test-300x300-yuvj420p-h264.mp4").pix_fmt)
assert_equal("yuv420p10le", MediaFile.open("test/files/mp4/test-yuv420p10le-av1.mp4").pix_fmt)
assert_equal("yuv420p10le", MediaFile.open("test/files/mp4/test-yuv420p10le-h264.mp4").pix_fmt)
assert_equal("yuv420p10le", MediaFile.open("test/files/mp4/test-yuv420p10le-vp9.mp4").pix_fmt)
end
should "detect corrupt videos" do
assert_equal(true, MediaFile.open("test/files/mp4/test-corrupt.mp4").is_corrupt?)
end
should "detect supported files" do
assert_equal(true, MediaFile.open("test/files/mp4/test-300x300.mp4").is_supported?)
assert_equal(true, MediaFile.open("test/files/mp4/test-300x300-vp9.mp4").is_supported?)
assert_equal(true, MediaFile.open("test/files/mp4/test-300x300-yuvj420p-h264.mp4").is_supported?)
assert_equal(true, MediaFile.open("test/files/mp4/test-300x300-iso4.mp4").is_supported?)
assert_equal(true, MediaFile.open("test/files/mp4/test-300x300-3gp5.mp4").is_supported?)
assert_equal(false, MediaFile.open("test/files/mp4/test-300x300-h265.mp4").is_supported?)
assert_equal(false, MediaFile.open("test/files/mp4/test-300x300-av1.mp4").is_supported?)
assert_equal(false, MediaFile.open("test/files/mp4/test-300x300-yuv444p-h264.mp4").is_supported?)
assert_equal(false, MediaFile.open("test/files/mp4/test-yuv420p10le-av1.mp4").is_supported?)
assert_equal(false, MediaFile.open("test/files/mp4/test-yuv420p10le-h264.mp4").is_supported?)
assert_equal(false, MediaFile.open("test/files/mp4/test-yuv420p10le-vp9.mp4").is_supported?)
end
end
context "for a webm file" do
should "determine the duration of the video" do
file = MediaFile.open("test/files/webm/test-512x512.webm")
assert_equal(0.48, file.duration)
assert_equal(10/0.48, file.frame_rate)
assert_equal(10, file.frame_count)
end
should "detect supported files" do
assert_equal(true, MediaFile.open("test/files/webm/test-512x512.webm").is_supported?)
assert_equal(true, MediaFile.open("test/files/webm/test-gbrp-vp9.webm").is_supported?)
assert_equal(false, MediaFile.open("test/files/webm/test-512x512.mkv").is_supported?)
assert_equal(false, MediaFile.open("test/files/webm/test-yuv420p10le-vp9.webm").is_supported?)
end
end
context "a compressed SWF file" do
should "get all the metadata" do
@metadata = MediaFile.open("test/files/compressed.swf").metadata
assert_equal(true, @metadata["Flash:Compressed"])
assert_not_equal("Install Compress::Zlib to extract compressed information", @metadata["ExifTool:Warning"])
assert_equal(9, @metadata.count)
end
end
context "an animated GIF file" do
should "determine the duration of the animation" do
file = MediaFile.open("test/files/test-animated-86x52.gif")
assert_equal(0.4, file.duration)
assert_equal(10, file.frame_rate)
assert_equal(4, file.frame_count)
end
end
context "a PNG file" do
context "that is not animated" do
should "not be detected as animated" do
file = MediaFile.open("test/files/apng/not_apng.png")
assert_equal(false, file.is_corrupt?)
assert_equal(false, file.is_animated?)
assert_nil(file.duration)
assert_nil(file.frame_rate)
assert_equal(1, file.frame_count)
end
end
context "that is animated" do
should "be detected as animated" do
file = MediaFile.open("test/files/apng/normal_apng.png")
assert_equal(false, file.is_corrupt?)
assert_equal(true, file.is_animated?)
assert_equal(3.0, file.duration)
assert_equal(1.0, file.frame_rate)
assert_equal(3, file.frame_count)
end
end
context "that is animated but with only one frame" do
should "not be detected as animated" do
file = MediaFile.open("test/files/apng/single_frame.png")
assert_equal(false, file.is_corrupt?)
assert_equal(false, file.is_animated?)
assert_nil(file.duration)
assert_nil(file.frame_rate)
assert_equal(1, file.frame_count)
end
end
context "that is animated but with an unspecified frame rate" do
should "have an assumed frame rate of ~6.66 FPS" do
file = MediaFile.open("test/files/test-animated-inf-fps.png")
assert_equal(false, file.is_corrupt?)
assert_equal(true, file.is_animated?)
assert_equal(0.3, file.duration)
assert_equal(2, file.frame_count)
assert_equal(2/0.3, file.frame_rate)
end
end
context "that is animated but malformed" do
should "be handled correctly" do
file = MediaFile.open("test/files/apng/iend_missing.png")
assert_equal(false, file.is_corrupt?)
assert_equal(true, file.is_animated?)
file = MediaFile.open("test/files/apng/misaligned_chunks.png")
assert_equal(true, file.is_corrupt?)
assert_equal(true, file.is_animated?)
file = MediaFile.open("test/files/apng/broken.png")
assert_equal(true, file.is_corrupt?)
assert_equal(true, file.is_animated?)
file = MediaFile.open("test/files/apng/actl_wronglen.png")
assert_equal(false, file.is_corrupt?)
assert_equal(true, file.is_animated?)
file = MediaFile.open("test/files/apng/actl_zero_frames.png")
assert_equal(false, file.is_corrupt?)
assert_equal(false, file.is_animated?)
assert_equal(0, file.frame_count)
end
end
end
context "a WebP file" do
should "be able to read WebP files" do
Dir["test/files/webp/*.webp"].each do |file|
assert_nothing_raised { MediaFile.open(file).attributes }
end
end
should "detect animated files" do
assert_equal(true, MediaFile.open("test/files/webp/nyancat.webp").is_animated?)
assert_equal(true, MediaFile.open("test/files/webp/nyancat.webp").is_animated_webp?)
assert_equal(true, MediaFile.open("test/files/webp/nyancat.webp").metadata.is_animated?)
assert_equal(false, MediaFile.open("test/files/webp/nyancat.webp").is_supported?)
assert_equal(12, MediaFile.open("test/files/webp/nyancat.webp").frame_count)
assert_equal(Float::INFINITY, MediaFile.open("test/files/webp/nyancat.webp").metadata.loop_count)
# assert_equal(0.84, MediaFile.open("test/files/webp/nyancat.webp").duration)
end
should "be able to generate a preview" do
assert_equal([128, 128], MediaFile.open("test/files/webp/test.webp").preview(180, 180).dimensions)
assert_equal([176, 180], MediaFile.open("test/files/webp/2_webp_a.webp").preview(180, 180).dimensions)
assert_equal([176, 180], MediaFile.open("test/files/webp/2_webp_ll.webp").preview(180, 180).dimensions)
assert_equal([180, 120], MediaFile.open("test/files/webp/Exif2.webp").preview(180, 180).dimensions)
assert_equal([180, 120], MediaFile.open("test/files/webp/fjord.webp").preview(180, 180).dimensions)
assert_equal([180, 55], MediaFile.open("test/files/webp/lossless1.webp").preview(180, 180).dimensions)
assert_equal([180, 55], MediaFile.open("test/files/webp/lossy_alpha1.webp").preview(180, 180).dimensions)
end
should "ignore EXIF orientation tags" do
# XXX It's possible for .webp files to contain the IFD0:Orientation tag, but browsers currently ignore it, so we do too.
assert_equal(false, MediaFile.open("test/files/webp/Exif2.webp").metadata.is_rotated?)
end
end
context "an AVIF file" do
should "be able to read AVIF files" do
Dir["test/files/avif/*.avif"].each do |file|
assert_nothing_raised { MediaFile.open(file).attributes }
end
end
should "detect supported files" do
assert_equal(true, MediaFile.open("test/files/avif/paris_icc_exif_xmp.avif").is_supported?)
assert_equal(true, MediaFile.open("test/files/avif/hdr_cosmos01000_cicp9-16-9_yuv420_limited_qp40.avif").is_supported?)
assert_equal(true, MediaFile.open("test/files/avif/hdr_cosmos01000_cicp9-16-9_yuv444_full_qp40.avif").is_supported?)
assert_equal(true, MediaFile.open("test/files/avif/fox.profile0.8bpc.yuv420.monochrome.avif").is_supported?)
assert_equal(true, MediaFile.open("test/files/avif/tiger_3layer_1res.avif").is_supported?)
end
should "detect unsupported files" do
assert_equal(false, MediaFile.open("test/files/avif/Image grid example.avif").is_supported?)
assert_equal(false, MediaFile.open("test/files/avif/kimono.crop.avif").is_supported?)
assert_equal(false, MediaFile.open("test/files/avif/kimono.rotate90.avif").is_supported?)
assert_equal(false, MediaFile.open("test/files/avif/sequence-with-pitm-avif-major.avif").is_supported?)
assert_equal(false, MediaFile.open("test/files/avif/sequence-with-pitm.avif").is_supported?)
assert_equal(false, MediaFile.open("test/files/avif/sequence-without-pitm.avif").is_supported?)
assert_equal(false, MediaFile.open("test/files/avif/star-8bpc.avif").is_supported?)
# XXX These should be unsupported, but aren't.
# assert_equal(false, MediaFile.open("test/files/avif/alpha_video.avif").is_supported?)
# assert_equal(false, MediaFile.open("test/files/avif/plum-blossom-small-profile0.8bpc.yuv420.alpha-full.avif").is_supported?)
# assert_equal(false, MediaFile.open("test/files/avif/kimono.mirror-horizontal.avif").is_supported?)
end
should "detect animated files" do
assert_equal(true, MediaFile.open("test/files/avif/sequence-with-pitm.avif").is_animated?)
assert_equal(true, MediaFile.open("test/files/avif/sequence-without-pitm.avif").is_animated?)
assert_equal(true, MediaFile.open("test/files/avif/alpha_video.avif").is_animated?)
assert_equal(true, MediaFile.open("test/files/avif/star-8bpc.avif").is_animated?)
assert_equal(48, MediaFile.open("test/files/avif/sequence-with-pitm.avif").frame_count)
assert_equal(95, MediaFile.open("test/files/avif/sequence-without-pitm.avif").frame_count)
assert_equal(48, MediaFile.open("test/files/avif/alpha_video.avif").frame_count)
assert_equal(5, MediaFile.open("test/files/avif/star-8bpc.avif").frame_count)
end
should "detect static images with an auxiliary image sequence" do
assert_equal(true, MediaFile.open("test/files/avif/sequence-with-pitm-avif-major.avif").metadata.is_animated_avif?)
assert_equal(false, MediaFile.open("test/files/avif/sequence-with-pitm-avif-major.avif").is_animated?)
assert_equal(1, MediaFile.open("test/files/avif/sequence-with-pitm-avif-major.avif").frame_count)
end
should "detect rotated images" do
assert_equal(true, MediaFile.open("test/files/avif/kimono.rotate90.avif").metadata.is_rotated?)
end
should "detect monochrome images" do
assert_equal(true, MediaFile.open("test/files/avif/fox.profile0.8bpc.yuv420.monochrome.avif").metadata.is_greyscale?)
end
should "be able to generate a preview" do
assert_equal([180, 75], MediaFile.open("test/files/avif/hdr_cosmos01000_cicp9-16-9_yuv420_limited_qp40.avif").preview(180, 180).dimensions)
assert_equal([180, 75], MediaFile.open("test/files/avif/hdr_cosmos01000_cicp9-16-9_yuv444_full_qp40.avif").preview(180, 180).dimensions)
assert_equal([180, 135], MediaFile.open("test/files/avif/paris_icc_exif_xmp.avif").preview(180, 180).dimensions)
assert_equal([180, 180], MediaFile.open("test/files/avif/Image grid example.avif").preview(180, 180).dimensions)
assert_equal([180, 120], MediaFile.open("test/files/avif/fox.profile0.8bpc.yuv420.monochrome.avif").preview(180, 180).dimensions)
assert_equal([180, 123], MediaFile.open("test/files/avif/tiger_3layer_1res.avif").preview(180, 180).dimensions)
end
end
context "a corrupt GIF" do
should "still read the metadata" do
@file = MediaFile.open("test/files/test-corrupt.gif")
@metadata = @file.metadata
assert_equal(true, @file.is_corrupt?)
assert_equal("libvips error", @file.error)
assert_equal([475, 600], @file.dimensions)
assert_equal("File format error", @metadata["ExifTool:Error"])
assert_equal("89a", @metadata["GIF:GIFVersion"])
assert_equal(10, @metadata.count)
end
should "not raise an exception when reading the frame count" do
@file = MediaFile.open("test/files/gif/corrupt-static.gif")
@metadata = @file.metadata
assert_equal(true, @file.is_corrupt?)
assert_equal("libvips error", @file.error)
assert_equal(nil, @file.frame_count)
assert_equal([575, 800], @file.dimensions)
assert_equal("File format error", @metadata["ExifTool:Error"])
assert_equal("89a", @metadata["GIF:GIFVersion"])
assert_equal(10, @metadata.count)
assert_nothing_raised { @file.attributes }
end
end
context "a corrupt PNG" do
should "still read the metadata" do
@file = MediaFile.open("test/files/test-corrupt.png")
@metadata = @file.metadata
assert_equal(true, @file.is_corrupt?)
assert_equal("libvips error", @file.error)
assert_equal("Grayscale", @metadata["PNG:ColorType"])
assert_equal(10, @metadata.count)
end
end
context "a corrupt JPEG" do
should "still read the metadata" do
@file = MediaFile.open("test/files/test-corrupt.jpg")
@metadata = @file.metadata
assert_equal(true, @file.is_corrupt?)
assert_equal("libvips error", @file.error)
assert_equal(1, @metadata["File:ColorComponents"])
assert_equal(11, @metadata.count)
end
end
context "a greyscale image without an embedded color profile" do
should "successfully generate a thumbnail" do
@image = MediaFile.open("test/files/test-grey-no-profile.jpg")
@preview = @image.preview(150, 150)
assert_equal(1, @image.channels)
assert_equal(:"b-w", @image.colorspace)
assert_equal([535, 290], @image.dimensions)
# XXX This will fail on libvips lower than 8.10. Before 8.10 it's 3
# channel srgb, after 8.10 it's 1 channel greyscale.
assert_equal(1, @preview.channels)
assert_equal(:"b-w", @preview.colorspace)
assert_equal([150, 81], @preview.dimensions)
end
end
context "a CMYK image without an embedded color profile" do
should "successfully generate a thumbnail" do
@image = MediaFile.open("test/files/test-cmyk-no-profile.jpg")
@preview = @image.preview(150, 150)
assert_equal(4, @image.channels)
assert_equal(:cmyk, @image.colorspace)
assert_equal([197, 256], @image.dimensions)
assert_equal(4, @preview.channels)
assert_equal(:cmyk, @preview.colorspace)
assert_equal([115, 150], @preview.dimensions)
end
end
context "an image with a weird embedded color profile" do
should "successfully generate a thumbnail" do
@image = MediaFile.open("test/files/test-weird-profile.jpg")
@preview = @image.preview(150, 150)
assert_equal(3, @image.channels)
assert_equal(:srgb, @image.colorspace)
assert_equal([154, 192], @image.dimensions)
assert_equal(3, @preview.channels)
assert_equal(:srgb, @preview.colorspace)
assert_equal([120, 150], @preview.dimensions)
end
end
context "an image that is rotated 90 degrees clockwise" do
should "have the correct dimensions" do
@file = MediaFile.open("test/files/test-rotation-90cw.jpg")
assert_equal([96, 128], @file.dimensions)
end
should "generate a rotated thumbnail" do
@file = MediaFile.open("test/files/test-rotation-90cw.jpg")
assert_equal([48, 64], @file.preview(64, 64).dimensions)
end
end
context "an image that is rotated 270 degrees clockwise" do
should "have the correct dimensions" do
@file = MediaFile.open("test/files/test-rotation-270cw.jpg")
assert_equal([100, 66], @file.dimensions)
end
should "generate a rotated thumbnail" do
@file = MediaFile.open("test/files/test-rotation-270cw.jpg")
assert_equal([50, 33], @file.preview(50, 50).dimensions)
end
end
context "an image that is rotated 180 degrees" do
should "have the correct dimensions" do
@file = MediaFile.open("test/files/test-rotation-180.jpg")
assert_equal([66, 100], @file.dimensions)
end
should "generate a rotated thumbnail" do
@file = MediaFile.open("test/files/test-rotation-180.jpg")
assert_equal([33, 50], @file.preview(50, 50).dimensions)
end
end
context "a PNG with an exif orientation flag" do
should "not generate rotated dimensions" do
@file = MediaFile.open("test/files/test-rotation-90cw.png")
assert_equal([128, 96], @file.dimensions)
end
should "not generate a rotated thumbnail" do
@file = MediaFile.open("test/files/test-rotation-90cw.png")
assert_equal([64, 48], @file.preview(64, 64).dimensions)
end
end
end