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
|
"""Tests for Coverage.py's arc measurement."""
import os, re, sys, textwrap
import coverage
from coverage.backward import StringIO
sys.path.insert(0, os.path.split(__file__)[0]) # Force relative import for Py3k
from coveragetest import CoverageTest
class ArcTest(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")
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_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 xest_xx(self):
self.check_coverage("""\
""",
arcz="", arcz_missing="")
|
