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
|
"""Tests for IPython.lib.pretty.
"""
#-----------------------------------------------------------------------------
# Copyright (c) 2011, the IPython Development Team.
#
# Distributed under the terms of the Modified BSD License.
#
# The full license is in the file COPYING.txt, distributed with this software.
#-----------------------------------------------------------------------------
#-----------------------------------------------------------------------------
# Imports
#-----------------------------------------------------------------------------
from __future__ import print_function
# Third-party imports
import nose.tools as nt
# Our own imports
from IPython.lib import pretty
from IPython.testing.decorators import skip_without
#-----------------------------------------------------------------------------
# Classes and functions
#-----------------------------------------------------------------------------
class MyList(object):
def __init__(self, content):
self.content = content
def _repr_pretty_(self, p, cycle):
if cycle:
p.text("MyList(...)")
else:
with p.group(3, "MyList(", ")"):
for (i, child) in enumerate(self.content):
if i:
p.text(",")
p.breakable()
else:
p.breakable("")
p.pretty(child)
class MyDict(dict):
def _repr_pretty_(self, p, cycle):
p.text("MyDict(...)")
class Dummy1(object):
def _repr_pretty_(self, p, cycle):
p.text("Dummy1(...)")
class Dummy2(Dummy1):
_repr_pretty_ = None
class NoModule(object):
pass
NoModule.__module__ = None
def test_indentation():
"""Test correct indentation in groups"""
count = 40
gotoutput = pretty.pretty(MyList(range(count)))
expectedoutput = "MyList(\n" + ",\n".join(" %d" % i for i in range(count)) + ")"
nt.assert_equal(gotoutput, expectedoutput)
def test_dispatch():
"""
Test correct dispatching: The _repr_pretty_ method for MyDict
must be found before the registered printer for dict.
"""
gotoutput = pretty.pretty(MyDict())
expectedoutput = "MyDict(...)"
nt.assert_equal(gotoutput, expectedoutput)
def test_callability_checking():
"""
Test that the _repr_pretty_ method is tested for callability and skipped if
not.
"""
gotoutput = pretty.pretty(Dummy2())
expectedoutput = "Dummy1(...)"
nt.assert_equal(gotoutput, expectedoutput)
def test_sets():
"""
Test that set and frozenset use Python 3 formatting.
"""
objects = [set(), frozenset(), set([1]), frozenset([1]), set([1, 2]),
frozenset([1, 2]), set([-1, -2, -3])]
expected = ['set()', 'frozenset()', '{1}', 'frozenset({1})', '{1, 2}',
'frozenset({1, 2})', '{-3, -2, -1}']
for obj, expected_output in zip(objects, expected):
got_output = pretty.pretty(obj)
yield nt.assert_equal, got_output, expected_output
@skip_without('xxlimited')
def test_pprint_heap_allocated_type():
"""
Test that pprint works for heap allocated types.
"""
import xxlimited
output = pretty.pretty(xxlimited.Null)
nt.assert_equal(output, 'xxlimited.Null')
def test_pprint_nomod():
"""
Test that pprint works for classes with no __module__.
"""
output = pretty.pretty(NoModule)
nt.assert_equal(output, 'NoModule')
|
