diff --git a/build.xml b/build.xml
new file mode 100644
index 0000000..1cffd0a
--- /dev/null
+++ b/build.xml
@@ -0,0 +1,27 @@
+<project name="Tippy" default="tests" basedir=".">
+  	<taskdef resource="pyAntTasks.properties"/>
+  	<property name="src.dir" value="tippy"/>
+	<property name="ex.dir" value="tippy/examples"/>
+	<property name="tests.dir" value="tippy/tests"/>
+
+	<target name="compile all">
+		<py-compile dir="${src.dir}" pythonpath="${src.dir}" optimize="0"/>
+	</target>		
+		
+	<target name="compile examples">
+    	<py-compile dir="${ex.dir}" pythonpath="${ex.dir}" optimize="0"/>
+  	</target>
+
+	<target name="compile tests">
+    	<py-compile dir="${tests.dir}" pythonpath="${tests.dir}" optimize="0"/>
+  	</target>
+
+	<target name="tests">
+		<py-test pythonpath="." dir="${src.dir}">
+  	  		<fileset dir="${src.dir}">
+				<include name="*/test_*"/>
+	  		</fileset>
+  		</py-test>
+	</target> 
+
+</project>
\ No newline at end of file
diff --git a/tippy/tests/test_basic_operations.py b/tippy/tests/test_basic_operations.py
index c942939..296c1bf 100644
--- a/tippy/tests/test_basic_operations.py
+++ b/tippy/tests/test_basic_operations.py
@@ -7,11 +7,11 @@ Created on Nov 19, 2011
 @email: julien@lengrand.fr
 '''
 
-
 import cv
-import tippy.basic_operations as bo
 import unittest
 
+import tippy.basic_operations as bo
+
 class Test(unittest.TestCase):
     """
     The class inherits from unittest
@@ -20,8 +20,8 @@ class Test(unittest.TestCase):
         """
         This method is called before each test
         """
-        self.img_1c = cv.LoadImage("../data/tippy.jpg", cv.CV_LOAD_IMAGE_GRAYSCALE) # 1 channel image 
-        self.img_3c = cv.LoadImage("../data/tippy.jpg", cv.CV_LOAD_IMAGE_COLOR) # 3 channel image 
+        self.img_1c = cv.LoadImage("data/tippy.jpg", cv.CV_LOAD_IMAGE_GRAYSCALE) # 1 channel image 
+        self.img_3c = cv.LoadImage("data/tippy.jpg", cv.CV_LOAD_IMAGE_COLOR) # 3 channel image 
         self.img_fake_2c = cv.CreateImage((15, 15), cv.IPL_DEPTH_8U, 2) # 2 channels
         self.fake_img = 10 # non Image
         
@@ -44,15 +44,15 @@ class Test(unittest.TestCase):
             self.assertEqual(img.depth, out_img.depth)
             self.assertEqual(cv.GetSize(img), cv.GetSize(out_img))
         self.assertRaises(TypeError, lambda: bo.create_same_image(self.fake_img))
-        
+
     def test_mouse_point(self):
         # img test
         self.assertRaises(TypeError, lambda: bo.mouse_point(self.fake_img))
         # name test
-        self.assertRaises(TypeError, lambda: bo.mouse_point(self.fake_name))
+        self.assertRaises(TypeError, lambda: bo.mouse_point(self.img_3c, self.fake_name))
         # mode test
-        self.assertRaises(TypeError, lambda: bo.mouse_point(self.fake_mode))
-        self.assertRaises(ValueError, lambda: bo.mouse_point(self.false_mode))
+        self.assertRaises(TypeError, lambda: bo.mouse_point(self.img_3c, mode=self.fake_mode))
+        self.assertRaises(ValueError, lambda: bo.mouse_point(self.img_3c, mode=self.false_mode))
         # TODO: How to test arguments that need user interaction?
         
 #if __name__ == "__main__":
diff --git a/tippy/tests/test_display_operations.py b/tippy/tests/test_display_operations.py
index e367b17..eadfd33 100644
--- a/tippy/tests/test_display_operations.py
+++ b/tippy/tests/test_display_operations.py
@@ -8,6 +8,7 @@ Created on Nov 24, 2011
 '''
 import unittest
 import cv
+
 import tippy.display_operations as do
 
 class Test(unittest.TestCase):
@@ -18,7 +19,7 @@ class Test(unittest.TestCase):
         """
         This method is called before each test
         """
-        self.img = cv.LoadImage("../data/tippy.jpg", cv.CV_LOAD_IMAGE_COLOR) # 3 channel image 
+        self.img = cv.LoadImage("data/tippy.jpg", cv.CV_LOAD_IMAGE_COLOR) # 3 channel image 
         self.fake_img = 10 # non Image        
 
     def tearDown(self):
diff --git a/tippy/tests/test_segmentation.py b/tippy/tests/test_segmentation.py
index 2b59beb..b83b890 100644
--- a/tippy/tests/test_segmentation.py
+++ b/tippy/tests/test_segmentation.py
@@ -10,14 +10,12 @@ import cv
 import tippy.segmentations as se
 
 class Test(unittest.TestCase):
-
-
     def setUp(self):
         """
         This method is called before each test
         """
-        self.img_1c = cv.LoadImage("../data/tippy.jpg", cv.CV_LOAD_IMAGE_GRAYSCALE) # 1 channel image 
-        self.img_3c = cv.LoadImage("../data/tippy.jpg", cv.CV_LOAD_IMAGE_COLOR) # 3 channel image 
+        self.img_1c = cv.LoadImage("data/tippy.jpg", cv.CV_LOAD_IMAGE_GRAYSCALE) # 1 channel image 
+        self.img_3c = cv.LoadImage("data/tippy.jpg", cv.CV_LOAD_IMAGE_COLOR) # 3 channel image 
         self.img_16s = cv.CreateImage((15, 15), cv.IPL_DEPTH_16S, 1) # Non 8 bits image
         self.fake_img = 10 # non Image
 
@@ -70,11 +68,11 @@ class Test(unittest.TestCase):
         self.assertRaises(ValueError, lambda: se.simple_region_growing(self.img_1c, self.seed, self.thres, self.other_conn))
         # function result tests
         # 4-conn
-        img_gnu = cv.LoadImage("../data/gnu.jpg", cv.CV_LOAD_IMAGE_GRAYSCALE) # 1 channel image 
+        img_gnu = cv.LoadImage("data/gnu.jpg", cv.CV_LOAD_IMAGE_GRAYSCALE) # 1 channel image 
         out_img = se.simple_region_growing(img_gnu, seed=(70, 106), threshold=20)
         self.assertEqual(cv.CountNonZero(out_img), 584)
         # 8-conn
-        img_gnu = cv.LoadImage("../data/gnu.jpg", cv.CV_LOAD_IMAGE_GRAYSCALE) # 1 channel image 
+        img_gnu = cv.LoadImage("data/gnu.jpg", cv.CV_LOAD_IMAGE_GRAYSCALE) # 1 channel image 
         out_img = se.simple_region_growing(img_gnu, seed=(70, 106), threshold=20, conn=8)
         self.assertEqual(cv.CountNonZero(out_img), 627)