Source Code for Module lepl.support._test.lib

 1   
 2  # The contents of this file are subject to the Mozilla Public License 
 3  # (MPL) Version 1.1 (the "License"); you may not use this file except 
 4  # in compliance with the License. You may obtain a copy of the License 
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 9  # the License for the specific language governing rights and 
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11  # 
12  # The Original Code is LEPL (http://www.acooke.org/lepl) 
13  # The Initial Developer of the Original Code is Andrew Cooke. 
14  # Portions created by the Initial Developer are Copyright (C) 2009-2010 
15  # Andrew Cooke (andrew@acooke.org). All Rights Reserved. 
16  # 
17  # Alternatively, the contents of this file may be used under the terms 
18  # of the LGPL license (the GNU Lesser General Public License, 
19  # http://www.gnu.org/licenses/lgpl.html), in which case the provisions 
20  # of the LGPL License are applicable instead of those above. 
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24  # of this file under the MPL, indicate your decision by deleting the 
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28  # MPL or the LGPL License. 
29   
30  ''' 
31  Tests for the lepl.support.lib module. 
32  ''' 
33   
34  from unittest import TestCase 
35   
36  from lepl.support.lib import assert_type, CircularFifo 
37   
38   
39  # pylint: disable-msg=C0103, C0111, C0301, W0702, C0324, R0201, R0913 
40  # (dude this is just a test) 
41   
42       
43 -class AssertTypeTestCase(TestCase): 
44       
45 -    def test_ok(self): 
46          assert_type('', 1, int) 
47          assert_type('', '', str) 
48          assert_type('', None, int, none_ok=True) 
49           
50 -    def test_bad(self): 
51          self.assert_bad('The foo attribute in Bar', '', int, False,  
52                          "The foo attribute in Bar (value '') must be of type int.") 
53          self.assert_bad('The foo attribute in Bar', None, int, False,  
54                          "The foo attribute in Bar (value None) must be of type int.") 
55           
56 -    def assert_bad(self, name, value, type_, none_ok, msg): 
57          try: 
58              assert_type(name, value, type_, none_ok=none_ok) 
59              assert False, 'Expected failure' 
60          except TypeError as e: 
61              assert e.args[0] == msg, e.args[0] 
62   
63   
64 -class CircularFifoTest(TestCase): 
65       
66 -    def test_expiry(self): 
67          fifo = CircularFifo(3) 
68          assert None == fifo.append(1) 
69          assert None == fifo.append(2) 
70          assert None == fifo.append(3) 
71          for i in range(4,10): 
72              assert i-3 == fifo.append(i) 
73               
74 -    def test_pop(self): 
75          fifo = CircularFifo(3) 
76          for i in range(1,3): 
77              for j in range(i): 
78                  assert None == fifo.append(j) 
79              for j in range(i): 
80                  popped = fifo.pop() 
81                  assert j == popped, '{0} {1} {2}'.format(i, j, popped) 
82          for i in range(4): 
83              fifo.append(i) 
84          assert 1 == fifo.pop() 
85           
86 -    def test_list(self): 
87          fifo = CircularFifo(3) 
88          for i in range(7): 
89              fifo.append(i) 
90          assert [4,5,6] == list(fifo) 
91          fifo.append(7) 
92          assert [5,6,7] == list(fifo) 
93          fifo.append(8) 
94          assert [6,7,8] == list(fifo) 
95          fifo.append(9) 
96          assert [7,8,9] == list(fifo) 
97