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
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
|
"""Tests for Coverage.py's arc measurement."""
import os, sys
sys.path.insert(0, os.path.split(__file__)[0]) # Force relative import for Py3k
from coveragetest import CoverageTest
class SimpleArcTest(CoverageTest):
"""Tests for Coverage.py's arc measurement."""
def test_simple_sequence(self):
self.check_coverage("""\
a = 1
b = 2
""",
arcs=[(-1,1), (1,2), (2,-1)], arcs_missing=[])
self.check_coverage("""\
a = 1
b = 3
""",
arcs=[(-1,1), (1,3), (3,-1)], arcs_missing=[])
self.check_coverage("""\
a = 2
b = 3
c = 5
""",
arcs=[(-1,2), (2,3), (3,5),(5,-1)], arcs_missing=[])
def test_function_def(self):
self.check_coverage("""\
def foo():
a = 2
foo()
""",
arcs=[(-1,1), (-1,2),(1,4),(2,-1), (4,-1)], arcs_missing=[])
def test_if(self):
self.check_coverage("""\
a = 1
if len([]) == 0:
a = 3
assert a == 3
""",
arcz=".1 12 23 24 34 4.", arcz_missing="24")
self.check_coverage("""\
a = 1
if len([]) == 1:
a = 3
assert a == 1
""",
arcz=".1 12 23 24 34 4.", arcz_missing="23 34")
def test_if_else(self):
self.check_coverage("""\
if len([]) == 0:
a = 2
else:
a = 4
assert a == 2
""",
arcz=".1 12 25 14 45 5.", arcz_missing="14 45")
self.check_coverage("""\
if len([]) == 1:
a = 2
else:
a = 4
assert a == 4
""",
arcz=".1 12 25 14 45 5.", arcz_missing="12 25")
class LoopArcTest(CoverageTest):
"""Arc-measuring tests involving loops."""
def test_loop(self):
self.check_coverage("""\
for i in range(10):
a = i
assert a == 9
""",
arcz=".1 12 21 13 3.", arcz_missing="")
self.check_coverage("""\
a = -1
for i in range(0):
a = i
assert a == -1
""",
arcz=".1 12 23 32 24 4.", arcz_missing="23 32")
def test_nested_loop(self):
self.check_coverage("""\
for i in range(3):
for j in range(3):
a = i + j
assert a == 4
""",
arcz=".1 12 23 32 21 14 4.", arcz_missing="")
def test_break(self):
self.check_coverage("""\
for i in range(10):
a = i
break # 3
a = 99
assert a == 0 # 5
""",
arcz=".1 12 23 35 15 41 5.", arcz_missing="15 41")
def test_continue(self):
self.check_coverage("""\
for i in range(10):
a = i
continue # 3
a = 99
assert a == 9 # 5
""",
arcz=".1 12 23 31 15 41 5.", arcz_missing="41")
def test_nested_breaks(self):
self.check_coverage("""\
for i in range(3):
for j in range(3):
a = i + j
break # 4
if i == 2:
break
assert a == 2 and i == 2 # 7
""",
arcz=".1 12 23 34 45 25 56 51 67 17 7.", arcz_missing="17 25")
def xest_xx(self):
self.check_coverage("""\
""",
arcz="", arcz_missing="")
|
