assert_equal 31, geo.width
assert_equal 40, geo.height
end
+
+ def test_should_crop_image(klass = ImageThumbnailCrop)
+ attachment_model klass
+ attachment = upload_file :filename => '/files/rails.png'
+ assert_valid attachment
+ assert attachment.image?
+ # has_attachment :thumbnails => { :square => "50x50c", :vertical => "30x60c", :horizontal => "60x30c"}
+
+ square = attachment.thumbnails.detect { |t| t.filename =~ /_square/ }
+ vertical = attachment.thumbnails.detect { |t| t.filename =~ /_vertical/ }
+ horizontal = attachment.thumbnails.detect { |t| t.filename =~ /_horizontal/ }
+
+ # test excat resize
+ assert_equal 50, square.width
+ assert_equal 50, square.height
+
+ assert_equal 30, vertical.width
+ assert_equal 60, vertical.height
+
+ assert_equal 60, horizontal.width
+ assert_equal 30, horizontal.height
+ end
+
+ # tests the first step in resize, crop the image in original size to right format
+ def test_should_crop_image_right(klass = ImageThumbnailCrop)
+ @@testcases.collect do |testcase|
+ image_width, image_height, thumb_width, thumb_height = testcase[:data]
+ image_aspect, thumb_aspect = image_width/image_height, thumb_width/thumb_height
+ crop_comand = klass.calculate_offset(image_width, image_height, image_aspect, thumb_width, thumb_height,thumb_aspect)
+ # pattern matching on crop command
+ if testcase.has_key?(:height)
+ assert crop_comand.match(/^#{image_width}x#{testcase[:height]}\+0\+#{testcase[:yoffset]}$/)
+ else
+ assert crop_comand.match(/^#{testcase[:width]}x#{image_height}\+#{testcase[:xoffset]}\+0$/)
+ end
+ end
+ end
+
else
def test_flunk
puts "MiniMagick not loaded, tests not running"
end
end
+
+ @@testcases = [
+ # image_aspect <= 1 && thumb_aspect >= 1
+ {:data => [10.0,40.0,2.0,1.0], :height => 5.0, :yoffset => 17.5}, # 1b
+ {:data => [10.0,40.0,1.0,1.0], :height => 10.0, :yoffset => 15.0}, # 1b
+
+ # image_aspect < 1 && thumb_aspect < 1
+ {:data => [10.0,40.0,1.0,2.0], :height => 20.0, :yoffset => 10.0}, # 1a
+ {:data => [2.0,3.0,1.0,2.0], :width => 1.5, :xoffset => 0.25}, # 1a
+
+ # image_aspect = thumb_aspect
+ {:data => [10.0,10.0,1.0,1.0], :height => 10.0, :yoffset => 0.0}, # QUADRAT 1c
+
+ # image_aspect >= 1 && thumb_aspect > 1 && image_aspect < thumb_aspect
+ {:data => [6.0,3.0,4.0,1.0], :height => 1.5, :yoffset => 0.75}, # 2b
+ {:data => [6.0,6.0,4.0,1.0], :height => 1.5, :yoffset => 2.25}, # 2b
+
+ # image_aspect > 1 && thumb_aspect > 1 && image_aspect > thumb_aspect
+ {:data => [9.0,3.0,2.0,1.0], :width => 6.0, :xoffset => 1.5}, # 2a
+
+ # image_aspect > 1 && thumb_aspect < 1 && image_aspect < thumb_aspect
+ {:data => [10.0,5.0,0.1,2.0], :width => 0.25, :xoffset => 4.875}, # 4
+ {:data => [10.0,5.0,1.0,2.0], :width => 2.5, :xoffset => 3.75}, # 4
+
+ # image_aspect > 1 && thumb_aspect > 1 && image_aspect > thumb_aspect
+ {:data => [9.0,3.0,2.0,1.0], :width => 6.0, :xoffset => 1.5}, # 3a
+ # image_aspect > 1 && thumb_aspect > 1 && image_aspect < thumb_aspect
+ {:data => [9.0,3.0,5.0,1.0], :height => 1.8, :yoffset => 0.6} # 3a
+ ]
+
+
+
+
+
end