Context için unittest.

Şimdilik yalnızca constness'ı test ediyoruz.
Daha sonra context'in yeni özelliklerini de test edeceğiz.

src/unittests/contexttests.py

@@ -0,0 +1,44 @@
+
+import unittest
+
+from pisi import context
+
+class ContextTestCase(unittest.TestCase):
+    def setUp(self):
+	self.ctx = context.Context("samples/popt.pspec")
+	
+    def testConstness(self):
+
+	# test if we can get a const attribute?
+	try:
+	    test = self.ctx.const.archives_dir_suffix
+	    self.assertNotEqual(test, "")
+	except AttributeError:
+	    self.fail("Couldn't get const attribute")
+
+	# test binding a new constant
+	self.ctx.const.test = "test binding"
+	
+	# test re-binding (which is illegal)
+	try:
+	    self.ctx.const.test = "test rebinding"
+	    # we shouldn't reach here
+	    self.fail("Rebinding a constant works. Something is wrong!")
+	except:
+	    # we achived our goal with this error. infact, this is a
+	    # ConstError but we can't catch it directly here
+	    pass
+
+	# test unbinding (which is also illegal)
+	try:
+	    del self.ctx.const.test
+	    # we shouldn't reach here
+	    self.fail("Unbinding a constant works. Something is wrong!")
+	except:
+	    # we achived our goal with this error. infact, this is a
+	    # ConstError but we can't catch it directly here
+	    pass
+    
+	    
+
+suite = unittest.makeSuite(ContextTestCase)