converted imagesize plugin to lib

lib/imagesize/test/test_image_size.rb

@@ -0,0 +1,70 @@
+require './test/test_helper.rb'
+
+class TestImageSize < Test::Unit::TestCase
+
+	def setup
+		@files = ['4_1_2.gif', '2-4-7.png', 'tokyo_tower.jpg', 'bmp.bmp', 
+		          'ppm.ppm', 'pgm.pgm', 'pbm.pbm', 
+		          'cursor.xbm', 'tiff.tiff', 'test.xpm', 
+		          'tower_e.gif.psd', 'detect.swf']
+		@results = [
+		  ['GIF' ,668,481],
+		  ['PNG' ,640,532],
+		  ['JPEG',320,240],
+		  ['BMP' , 50, 50],
+		  ['PPM' , 80, 50],
+		  ['PGM' , 90, 55],
+		  ['PBM' , 85, 55],
+		  ['XBM' , 16, 16],
+		  ['TIFF', 64, 64],
+		  ['XPM' , 32, 32],
+		  ['PSD' , 20, 20],
+		  ['SWF' ,450,200],
+		]
+	end
+
+	def teardown
+	end
+
+	def test_0_string
+#		puts "\n" if $VERBOSE
+
+		@files.each_index do |i|
+			file = @files[i]
+			result = @results[i]
+
+			open("test/#{file}", "rb") do |fh|
+				img_data = fh.read
+#				puts "file  =#{file}" if $VERBOSE
+
+				img = ImageSize.new(img_data, result[0])
+
+				assert_equal(result[1], img.get_width)
+				assert_equal(result[2], img.get_height)
+
+				img = ImageSize.new(img_data)
+				assert_equal(result[0], img.get_type)
+				assert_equal(result[1], img.get_width)
+				assert_equal(result[2], img.get_height)
+			end
+		end
+	end
+
+	def test_1_io
+#		puts "\n" if $VERBOSE
+
+		@files.each_index do |i|
+			file = @files[i]
+			result = @results[i]
+
+			open("test/#{file}", "rb") do |fh|
+#				puts "file  =#{file}" if $VERBOSE
+
+				img = ImageSize.new(fh)
+				assert_equal(result[0], img.get_type)
+				assert_equal(result[1], img.get_width)
+				assert_equal(result[2], img.get_height)
+			end
+		end
+	end
+end