lib-python.2.5.test.test_pprint.py Maven / Gradle / Ivy
Go to download
Show more of this group Show more artifacts with this name
Show all versions of jython Show documentation
Show all versions of jython Show documentation
Jython is an implementation of the high-level, dynamic, object-oriented
language Python written in 100% Pure Java, and seamlessly integrated with
the Java platform. It thus allows you to run Python on any Java platform.
import pprint
import test.test_support
import unittest
try:
uni = unicode
except NameError:
def uni(x):
return x
# list, tuple and dict subclasses that do or don't overwrite __repr__
class list2(list):
pass
class list3(list):
def __repr__(self):
return list.__repr__(self)
class tuple2(tuple):
pass
class tuple3(tuple):
def __repr__(self):
return tuple.__repr__(self)
class dict2(dict):
pass
class dict3(dict):
def __repr__(self):
return dict.__repr__(self)
class QueryTestCase(unittest.TestCase):
def setUp(self):
self.a = range(100)
self.b = range(200)
self.a[-12] = self.b
def test_basic(self):
# Verify .isrecursive() and .isreadable() w/o recursion
verify = self.assert_
pp = pprint.PrettyPrinter()
for safe in (2, 2.0, 2j, "abc", [3], (2,2), {3: 3}, uni("yaddayadda"),
self.a, self.b):
# module-level convenience functions
verify(not pprint.isrecursive(safe),
"expected not isrecursive for %r" % (safe,))
verify(pprint.isreadable(safe),
"expected isreadable for %r" % (safe,))
# PrettyPrinter methods
verify(not pp.isrecursive(safe),
"expected not isrecursive for %r" % (safe,))
verify(pp.isreadable(safe),
"expected isreadable for %r" % (safe,))
def test_knotted(self):
# Verify .isrecursive() and .isreadable() w/ recursion
# Tie a knot.
self.b[67] = self.a
# Messy dict.
self.d = {}
self.d[0] = self.d[1] = self.d[2] = self.d
verify = self.assert_
pp = pprint.PrettyPrinter()
for icky in self.a, self.b, self.d, (self.d, self.d):
verify(pprint.isrecursive(icky), "expected isrecursive")
verify(not pprint.isreadable(icky), "expected not isreadable")
verify(pp.isrecursive(icky), "expected isrecursive")
verify(not pp.isreadable(icky), "expected not isreadable")
# Break the cycles.
self.d.clear()
del self.a[:]
del self.b[:]
for safe in self.a, self.b, self.d, (self.d, self.d):
# module-level convenience functions
verify(not pprint.isrecursive(safe),
"expected not isrecursive for %r" % (safe,))
verify(pprint.isreadable(safe),
"expected isreadable for %r" % (safe,))
# PrettyPrinter methods
verify(not pp.isrecursive(safe),
"expected not isrecursive for %r" % (safe,))
verify(pp.isreadable(safe),
"expected isreadable for %r" % (safe,))
def test_unreadable(self):
# Not recursive but not readable anyway
verify = self.assert_
pp = pprint.PrettyPrinter()
for unreadable in type(3), pprint, pprint.isrecursive:
# module-level convenience functions
verify(not pprint.isrecursive(unreadable),
"expected not isrecursive for %r" % (unreadable,))
verify(not pprint.isreadable(unreadable),
"expected not isreadable for %r" % (unreadable,))
# PrettyPrinter methods
verify(not pp.isrecursive(unreadable),
"expected not isrecursive for %r" % (unreadable,))
verify(not pp.isreadable(unreadable),
"expected not isreadable for %r" % (unreadable,))
def test_same_as_repr(self):
# Simple objects, small containers and classes that overwrite __repr__
# For those the result should be the same as repr().
# Ahem. The docs don't say anything about that -- this appears to
# be testing an implementation quirk. Starting in Python 2.5, it's
# not true for dicts: pprint always sorts dicts by key now; before,
# it sorted a dict display if and only if the display required
# multiple lines. For that reason, dicts with more than one element
# aren't tested here.
verify = self.assert_
for simple in (0, 0L, 0+0j, 0.0, "", uni(""),
(), tuple2(), tuple3(),
[], list2(), list3(),
{}, dict2(), dict3(),
verify, pprint,
-6, -6L, -6-6j, -1.5, "x", uni("x"), (3,), [3], {3: 6},
(1,2), [3,4], {5: 6, 7: 8},
tuple2((1,2)), tuple3((1,2)), tuple3(range(100)),
[3,4], list2([3,4]), list3([3,4]), list3(range(100)),
{5: 6, 7: 8}, dict2({5: 6}), dict3({5: 6}),
range(10, -11, -1)
):
native = repr(simple)
for function in "pformat", "saferepr":
f = getattr(pprint, function)
got = f(simple)
verify(native == got, "expected %s got %s from pprint.%s" %
(native, got, function))
def test_basic_line_wrap(self):
# verify basic line-wrapping operation
o = {'RPM_cal': 0,
'RPM_cal2': 48059,
'Speed_cal': 0,
'controldesk_runtime_us': 0,
'main_code_runtime_us': 0,
'read_io_runtime_us': 0,
'write_io_runtime_us': 43690}
exp = """\
{'RPM_cal': 0,
'RPM_cal2': 48059,
'Speed_cal': 0,
'controldesk_runtime_us': 0,
'main_code_runtime_us': 0,
'read_io_runtime_us': 0,
'write_io_runtime_us': 43690}"""
for type in [dict, dict2]:
self.assertEqual(pprint.pformat(type(o)), exp)
o = range(100)
exp = '[%s]' % ',\n '.join(map(str, o))
for type in [list, list2]:
self.assertEqual(pprint.pformat(type(o)), exp)
o = tuple(range(100))
exp = '(%s)' % ',\n '.join(map(str, o))
for type in [tuple, tuple2]:
self.assertEqual(pprint.pformat(type(o)), exp)
# indent parameter
o = range(100)
exp = '[ %s]' % ',\n '.join(map(str, o))
for type in [list, list2]:
self.assertEqual(pprint.pformat(type(o), indent=4), exp)
def test_sorted_dict(self):
# Starting in Python 2.5, pprint sorts dict displays by key regardless
# of how small the dictionary may be.
# Before the change, on 32-bit Windows pformat() gave order
# 'a', 'c', 'b' here, so this test failed.
d = {'a': 1, 'b': 1, 'c': 1}
self.assertEqual(pprint.pformat(d), "{'a': 1, 'b': 1, 'c': 1}")
self.assertEqual(pprint.pformat([d, d]),
"[{'a': 1, 'b': 1, 'c': 1}, {'a': 1, 'b': 1, 'c': 1}]")
# The next one is kind of goofy. The sorted order depends on the
# alphabetic order of type names: "int" < "str" < "tuple". Before
# Python 2.5, this was in the test_same_as_repr() test. It's worth
# keeping around for now because it's one of few tests of pprint
# against a crazy mix of types.
self.assertEqual(pprint.pformat({"xy\tab\n": (3,), 5: [[]], (): {}}),
r"{5: [[]], 'xy\tab\n': (3,), (): {}}")
def test_subclassing(self):
o = {'names with spaces': 'should be presented using repr()',
'others.should.not.be': 'like.this'}
exp = """\
{'names with spaces': 'should be presented using repr()',
others.should.not.be: like.this}"""
self.assertEqual(DottedPrettyPrinter().pformat(o), exp)
class DottedPrettyPrinter(pprint.PrettyPrinter):
def format(self, object, context, maxlevels, level):
if isinstance(object, str):
if ' ' in object:
return repr(object), 1, 0
else:
return object, 0, 0
else:
return pprint.PrettyPrinter.format(
self, object, context, maxlevels, level)
def test_main():
test.test_support.run_unittest(QueryTestCase)
if __name__ == "__main__":
test_main()