Added tests with trial and .travis.yml

.gitignore

@@ -28,3 +28,6 @@ pip-log.txt
 
 #Mac OSX
 .DS_Store
+
+#Trial
+_trial_temp

.travis.yml

@@ -0,0 +1,7 @@
+language: python
+python:
+    - 2.6
+    - 2.7
+
+install: python setup.py install
+script: trial klein

x256/test_x256.py

@@ -0,0 +1,34 @@
+from twisted.trial import unittest
+
+import x256 
+
+
+class Testx256(unittest.TestCase):
+    """
+    Test class for x256 module.
+    """
+
+    def setUp(self):
+        self.rgb = [220, 40, 150]
+        self.xcolor = 162
+        self.hex = 'DC2896'
+        self.aprox_hex = 'D7087'
+        self.aprox_rgb = [215, 0, 135]
+
+    def test_from_rgb(self):
+        color = x256.from_rgb(self.rgb)
+        self.assertEqual(self.xcolor, color)
+        color = x256.from_rgb(self.rgb[0], self.rgb[1], self.rgb[2])
+        self.assertEqual(self.xcolor, color)
+
+    def test_from_rgb(self):
+        color = x256.from_hex(self.hex)
+        self.assertEqual(self.xcolor, color)
+
+    def test_to_rgb(self):
+        color = x256.to_rgb(self.xcolor)
+        self.assertEqual(self.aprox_rgb, color)
+
+    def test_to_hex(self):
+        color = x256.to_hex(self.xcolor)
+        self.assertEqual(self.aprox_hex, color)