JezK
Edit File: image_test.rb
require 'rubygems' require 'test/unit' require 'mocha' require 'pathname' require 'stringio' require File.expand_path('../../lib/mini_magick', __FILE__) #MiniMagick.processor = :gm class ImageTest < Test::Unit::TestCase include MiniMagick CURRENT_DIR = File.dirname(File.expand_path(__FILE__)) + "/" SIMPLE_IMAGE_PATH = CURRENT_DIR + "simple.gif" MINUS_IMAGE_PATH = CURRENT_DIR + "simple-minus.gif" TIFF_IMAGE_PATH = CURRENT_DIR + "leaves spaced.tiff" NOT_AN_IMAGE_PATH = CURRENT_DIR + "not_an_image.php" GIF_WITH_JPG_EXT = CURRENT_DIR + "actually_a_gif.jpg" EXIF_IMAGE_PATH = CURRENT_DIR + "trogdor.jpg" ANIMATION_PATH = CURRENT_DIR + "animation.gif" def test_image_from_blob File.open(SIMPLE_IMAGE_PATH, "rb") do |f| image = Image.read(f.read) assert image.valid? image.destroy! end end def test_image_open image = Image.open(SIMPLE_IMAGE_PATH) assert image.valid? image.destroy! end def test_image_io_reading buffer = StringIO.new(File.read(SIMPLE_IMAGE_PATH)) image = Image.read(buffer) image.destroy! end def test_image_create image = Image.create do |f| f.write(File.read(SIMPLE_IMAGE_PATH)) end image.destroy! end def test_image_new image = Image.new(SIMPLE_IMAGE_PATH) image.destroy! end def test_remote_image image = Image.open("http://www.google.com/images/logos/logo.png") image.valid? image.destroy! end def test_image_write output_path = "output.gif" begin image = Image.new(SIMPLE_IMAGE_PATH) image.write output_path assert File.exists?(output_path) ensure File.delete output_path end image.destroy! end def test_image_write_with_stream stream = StringIO.new image = Image.open(SIMPLE_IMAGE_PATH) image.write("/tmp/foo.gif") image.write(stream) # assert Image.read(stream.string).valid? image.destroy! end def test_not_an_image image = Image.new(NOT_AN_IMAGE_PATH) assert_equal false, image.valid? image.destroy! end def test_throw_on_openining_not_an_image assert_raise(MiniMagick::Invalid) do image = Image.open(NOT_AN_IMAGE_PATH) image.destroy end end def test_image_meta_info image = Image.new(SIMPLE_IMAGE_PATH) assert_equal 150, image[:width] assert_equal 55, image[:height] assert_equal [150, 55], image[:dimensions] assert_match(/^gif$/i, image[:format]) image.destroy! end def test_tiff image = Image.new(TIFF_IMAGE_PATH) assert_equal "tiff", image[:format].downcase assert_equal 50, image[:width] assert_equal 41, image[:height] image.destroy! end def test_gif_with_jpg_format image = Image.new(GIF_WITH_JPG_EXT) assert_equal "gif", image[:format].downcase image.destroy! end def test_image_resize image = Image.open(SIMPLE_IMAGE_PATH) image.resize "20x30!" assert_equal 20, image[:width] assert_equal 30, image[:height] assert_match(/^gif$/i, image[:format]) image.destroy! end def test_image_resize_with_minimum image = Image.open(SIMPLE_IMAGE_PATH) original_width, original_height = image[:width], image[:height] image.resize "#{original_width + 10}x#{original_height + 10}>" assert_equal original_width, image[:width] assert_equal original_height, image[:height] image.destroy! end def test_image_combine_options_resize_blur image = Image.open(SIMPLE_IMAGE_PATH) image.combine_options do |c| c.resize "20x30!" c.blur "50" end assert_equal 20, image[:width] assert_equal 30, image[:height] assert_match(/^gif$/i, image[:format]) image.destroy! end def test_image_combine_options_with_filename_with_minusses_in_it image = Image.open(SIMPLE_IMAGE_PATH) background = "#000000" assert_nothing_raised do image.combine_options do |c| c.draw "image Over 0,0 10,10 '#{MINUS_IMAGE_PATH}'" c.thumbnail "300x500>" c.background background end end image.destroy! end def test_exif image = Image.open(EXIF_IMAGE_PATH) assert_equal('0220', image["exif:ExifVersion"]) image = Image.open(SIMPLE_IMAGE_PATH) assert_equal('', image["EXIF:ExifVersion"]) image.destroy! end def test_original_at image = Image.open(EXIF_IMAGE_PATH) assert_equal(Time.local('2005', '2', '23', '23', '17', '24'), image[:original_at]) image = Image.open(SIMPLE_IMAGE_PATH) assert_nil(image[:original_at]) image.destroy! end def test_tempfile_at_path image = Image.open(TIFF_IMAGE_PATH) assert_equal image.path, image.instance_eval("@tempfile.path") image.destroy! end def test_tempfile_at_path_after_format image = Image.open(TIFF_IMAGE_PATH) image.format('png') assert_equal image.path, image.instance_eval("@tempfile.path") image.destroy! end def test_previous_tempfile_deleted_after_format image = Image.open(TIFF_IMAGE_PATH) before = image.path.dup image.format('png') assert !File.exist?(before) image.destroy! end def test_bad_method_bug image = Image.open(TIFF_IMAGE_PATH) begin image.to_blog rescue NoMethodError assert true end image.to_blob assert true #we made it this far without error image.destroy! end def test_simple_composite image = Image.open(EXIF_IMAGE_PATH) result = image.composite(Image.open(TIFF_IMAGE_PATH)) do |c| c.gravity "center" end assert `diff -s #{result.path} test/composited.jpg`.include?("identical") end # http://github.com/probablycorey/mini_magick/issues#issue/8 def test_issue_8 image = Image.open(SIMPLE_IMAGE_PATH) assert_nothing_raised do image.combine_options do |c| c.sample "50%" c.rotate "-90>" end end image.destroy! end # http://github.com/probablycorey/mini_magick/issues#issue/15 def test_issue_15 image = Image.open(Pathname.new(SIMPLE_IMAGE_PATH)) output = Pathname.new("test.gif") image.write(output) ensure FileUtils.rm("test.gif") end def test_throw_format_error image = Image.open(SIMPLE_IMAGE_PATH) assert_raise MiniMagick::Error do image.combine_options do |c| c.format "png" end end image.destroy! end # testing that if copying files formatted from an animation fails, # it raises an appropriate error def test_throw_animation_copy_after_format_error image = Image.open(ANIMATION_PATH) FileUtils.stubs(:copy_file).raises(Errno::ENOENT) assert_raises MiniMagick::Error do image.format('png') end end end