--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/data_generation/transformations/pycaptcha/Captcha/Visual/Tests.py	Fri Feb 26 14:15:38 2010 -0500
@@ -0,0 +1,65 @@
+""" Captcha.Visual.Tests
+
+Visual CAPTCHA tests
+"""
+#
+# PyCAPTCHA Package
+# Copyright (C) 2004 Micah Dowty <micah@navi.cx>
+#
+
+from Captcha.Visual import Text, Backgrounds, Distortions, ImageCaptcha
+from Captcha import Words
+import random
+
+__all__ = ["PseudoGimpy", "AngryGimpy", "AntiSpam"]
+
+
+class PseudoGimpy(ImageCaptcha):
+    """A relatively easy CAPTCHA that's somewhat easy on the eyes"""
+    def getLayers(self):
+        word = Words.defaultWordList.pick()
+        self.addSolution(word)
+        return [
+           # random.choice([
+           #     Backgrounds.CroppedImage(),
+           #     Backgrounds.TiledImage(),
+           # ]),
+            Text.TextLayer(word, borderSize=1),
+            Distortions.SineWarp(),
+            ]
+
+
+class AngryGimpy(ImageCaptcha):
+    """A harder but less visually pleasing CAPTCHA"""
+    def getLayers(self):
+        word = Words.defaultWordList.pick()
+        self.addSolution(word)
+        return [
+           # suppression du background 
+           # Backgrounds.TiledImage(),
+           # Backgrounds.RandomDots(),
+            Text.TextLayer(word, borderSize=1),
+	   # Distortions.SineWarp(periodRange    = (0.04, 0.07))
+            Distortions.WigglyBlocks(),
+              ]
+
+
+class AntiSpam(ImageCaptcha):
+    """A fixed-solution CAPTCHA that can be used to hide email addresses or URLs from bots"""
+    fontFactory = Text.FontFactory(20, "vera/VeraBd.ttf")
+    defaultSize = (512,50)
+
+    def getLayers(self, solution="murray@example.com"):
+        self.addSolution(solution)
+
+        textLayer = Text.TextLayer(solution,
+                                   borderSize = 2,
+                                   fontFactory = self.fontFactory)
+
+        return [
+            Backgrounds.CroppedImage(),
+            textLayer,
+            Distortions.SineWarp(amplitudeRange = (3, 5)),
+            ]
+
+### The End ###