calc: fix handling and add tests for empty result

modules/calc.py

@@ -48,12 +48,12 @@ def c(phenny, input):
         answer = answer.replace('</sup>', ')')
         answer = web.decode(answer)
         phenny.say(answer)
-    else: phenny.say('Sorry, no result.')
+    else: phenny.reply('Sorry, no result.')
 c.commands = ['c']
 c.example = '.c 5 + 3'
 
 def py(phenny, input): 
-    query = input.group(2)
+    query = input.group(2) or ""
     uri = 'http://tumbolia.appspot.com/py/'
     answer = web.get(uri + web.quote(query))
     if answer: 
@@ -66,8 +66,13 @@ def wa(phenny, input):
         return phenny.reply("No search term.")
     query = input.group(2)
     uri = 'http://tumbolia.appspot.com/wa/'
+
     answer = web.get(uri + web.quote(query.replace('+', '%2B')))
+    try:
         answer = answer.split(';')[1]
+    except IndexError:
+        answer = ""
+
     if answer: 
         phenny.say(answer)
     else: phenny.reply('Sorry, no result.')

modules/test/test_calc.py

@@ -24,14 +24,30 @@ class TestCalc(unittest.TestCase):
 
         self.phenny.say.assert_called_once_with('1.84467441 * 10^(19)')
 
+    def test_c_none(self):
+        input = Mock(group=lambda x: 'aif')
+        c(self.phenny, input)
+
+        self.phenny.reply.assert_called_once_with('Sorry, no result.')
+
     def test_py(self):
         input = Mock(group=lambda x: "'test'*3")
         py(self.phenny, input)
 
         self.phenny.say.assert_called_once_with('testtesttest\n')
 
+    def test_py_none(self):
+        input = Mock(group=lambda x: "")
+        py(self.phenny, input)
+
     def test_wa(self):
         input = Mock(group=lambda x: 'airspeed of an unladen swallow')
         wa(self.phenny, input)
 
         self.phenny.say.assert_called_once_with('25 mph  (miles per hour)')
+
+    def test_wa_none(self):
+        input = Mock(group=lambda x: "jajoajaj ojewphjqo I!tj")
+        wa(self.phenny, input)
+
+        self.phenny.reply.assert_called_once_with('Sorry, no result.')