|
|
"""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')
|
|
|
|
