1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
|
#!/usr/bin/env python
# -*- coding: utf-8 -*-
import unittest
from gerrit_stream import GerritStream, GerritStreamError
class ListenerWithNoHandler():
""" Dummy listener class with no event handler.
"""
def __init__(self):
pass
class ListenerWithInvalidHandler():
""" Dummy listener class with invalid event handler.
"""
def __init__(self):
pass
def on_gerrit_event(self):
pass
class ListenerWithValidHandler():
""" Dummy listener class.
"""
def __init__(self):
pass
def on_gerrit_event(self, event):
pass
class TestGerritStream(unittest.TestCase):
""" Test that the GerritStream class behaves correctly.
"""
def test_listener_no_handler(self):
""" Test that an exception is raised if a listener is
attached without an event handler method.
"""
g = GerritStream()
l = ListenerWithNoHandler()
self.assertRaises(GerritStreamError, g.attach, l)
def test_listener_invalid_handler(self):
""" Test that an exception is raised if a listener is
attached with an invalid event handler method.
"""
g = GerritStream()
l = ListenerWithInvalidHandler()
self.assertRaises(GerritStreamError, g.attach, l)
def test_listener_valid_handler(self):
""" Test that a valid listener can be added.
"""
g = GerritStream()
l = ListenerWithValidHandler()
self.assertEquals(len(g.listeners), 0)
g.attach(l)
self.assertEquals(len(g.listeners), 1)
self.assertEquals(g.listeners[0], l)
def test_add_same_listener_multiple_times(self):
""" Test that the same listener will only be added once.
"""
g = GerritStream()
l = ListenerWithValidHandler()
self.assertEquals(len(g.listeners), 0)
g.attach(l)
self.assertEquals(len(g.listeners), 1)
self.assertEquals(g.listeners[0], l)
g.attach(l)
self.assertEquals(len(g.listeners), 1)
self.assertEquals(g.listeners[0], l)
def test_add_multiple_listeners(self):
""" Test that multiple listeners can be added.
"""
g = GerritStream()
l = ListenerWithValidHandler()
self.assertEquals(len(g.listeners), 0)
g.attach(l)
self.assertEquals(len(g.listeners), 1)
self.assertEquals(g.listeners[0], l)
l2 = ListenerWithValidHandler()
g.attach(l2)
self.assertEquals(len(g.listeners), 2)
self.assertEquals(g.listeners[0], l)
self.assertEquals(g.listeners[1], l2)
def test_detach_listener(self):
""" Test that a listener can be detached.
"""
g = GerritStream()
l = ListenerWithValidHandler()
self.assertEquals(len(g.listeners), 0)
g.attach(l)
self.assertEquals(len(g.listeners), 1)
self.assertEquals(g.listeners[0], l)
g.detach(l)
self.assertEquals(len(g.listeners), 0)
def test_detach_not_attached_listener(self):
""" Test that the class behaves correctly if a not-attached
listener is detached.
"""
g = GerritStream()
l = ListenerWithValidHandler()
self.assertEquals(len(g.listeners), 0)
g.detach(l)
self.assertEquals(len(g.listeners), 0)
if __name__ == '__main__':
unittest.main()
|
