cpython/Lib/test/test_pprint.py
Georg Brandl 3ccb787241 Merged revisions 64446,64490,64495,64526,64567 via svnmerge from
svn+ssh://pythondev@svn.python.org/python/trunk

........
  r64446 | facundo.batista | 2008-06-21 19:43:56 +0200 (Sat, 21 Jun 2008) | 4 lines


  Fixed issue #2888. Now the behaviour of pprint when working with nested
  structures follows the common sense (and works like in 2.5 and 3.0).
........
  r64490 | thomas.heller | 2008-06-23 21:51:41 +0200 (Mon, 23 Jun 2008) | 1 line

  Include debug info when assembling win64.asm in a debug build.
........
  r64495 | benjamin.peterson | 2008-06-24 04:41:08 +0200 (Tue, 24 Jun 2008) | 1 line

  minor fix
........
  r64526 | mark.dickinson | 2008-06-25 17:29:32 +0200 (Wed, 25 Jun 2008) | 2 lines

  issue #3199: Fix typo in Mac/Makefile.in
........
  r64567 | mark.dickinson | 2008-06-28 00:20:14 +0200 (Sat, 28 Jun 2008) | 3 lines

  Fix typo in configure.in, and propagate configure.in changes from r64002
  to configure and pyconfig.h.in.
........
2008-07-16 03:00:45 +00:00

430 lines
24 KiB
Python

import pprint
import test.support
import unittest
import test.test_set
# 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 = list(range(100))
self.b = list(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}, "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, 0, 0+0j, 0.0, "", b"",
(), tuple2(), tuple3(),
[], list2(), list3(),
{}, dict2(), dict3(),
verify, pprint,
-6, -6, -6-6j, -1.5, "x", b"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_nested_indentations(self):
o1 = list(range(10))
o2 = dict(first=1, second=2, third=3)
o = [o1, o2]
expected = """\
[ [0, 1, 2, 3, 4, 5, 6, 7, 8, 9],
{ 'first': 1,
'second': 2,
'third': 3}]"""
self.assertEqual(pprint.pformat(o, indent=4, width=42), expected)
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)
def test_set_reprs(self):
self.assertEqual(pprint.pformat(set()), 'set()')
self.assertEqual(pprint.pformat(set(range(3))), '{0, 1, 2}')
self.assertEqual(pprint.pformat(frozenset()), 'frozenset()')
self.assertEqual(pprint.pformat(frozenset(range(3))), 'frozenset({0, 1, 2})')
cube_repr_tgt = """\
{frozenset(): frozenset({frozenset({2}), frozenset({0}), frozenset({1})}),
frozenset({0}): frozenset({frozenset(),
frozenset({0, 2}),
frozenset({0, 1})}),
frozenset({1}): frozenset({frozenset(),
frozenset({1, 2}),
frozenset({0, 1})}),
frozenset({2}): frozenset({frozenset(),
frozenset({1, 2}),
frozenset({0, 2})}),
frozenset({1, 2}): frozenset({frozenset({2}),
frozenset({1}),
frozenset({0, 1, 2})}),
frozenset({0, 2}): frozenset({frozenset({2}),
frozenset({0}),
frozenset({0, 1, 2})}),
frozenset({0, 1}): frozenset({frozenset({0}),
frozenset({1}),
frozenset({0, 1, 2})}),
frozenset({0, 1, 2}): frozenset({frozenset({1, 2}),
frozenset({0, 2}),
frozenset({0, 1})})}"""
cube = test.test_set.cube(3)
self.assertEqual(pprint.pformat(cube), cube_repr_tgt)
cubo_repr_tgt = """\
{frozenset({frozenset({0, 2}), frozenset({0})}): frozenset({frozenset({frozenset({0,
2}),
frozenset({0,
1,
2})}),
frozenset({frozenset({0}),
frozenset({0,
1})}),
frozenset({frozenset(),
frozenset({0})}),
frozenset({frozenset({2}),
frozenset({0,
2})})}),
frozenset({frozenset({0, 1}), frozenset({1})}): frozenset({frozenset({frozenset({0,
1}),
frozenset({0,
1,
2})}),
frozenset({frozenset({0}),
frozenset({0,
1})}),
frozenset({frozenset({1}),
frozenset({1,
2})}),
frozenset({frozenset(),
frozenset({1})})}),
frozenset({frozenset({1, 2}), frozenset({1})}): frozenset({frozenset({frozenset({1,
2}),
frozenset({0,
1,
2})}),
frozenset({frozenset({2}),
frozenset({1,
2})}),
frozenset({frozenset(),
frozenset({1})}),
frozenset({frozenset({1}),
frozenset({0,
1})})}),
frozenset({frozenset({1, 2}), frozenset({2})}): frozenset({frozenset({frozenset({1,
2}),
frozenset({0,
1,
2})}),
frozenset({frozenset({1}),
frozenset({1,
2})}),
frozenset({frozenset({2}),
frozenset({0,
2})}),
frozenset({frozenset(),
frozenset({2})})}),
frozenset({frozenset(), frozenset({0})}): frozenset({frozenset({frozenset({0}),
frozenset({0,
1})}),
frozenset({frozenset({0}),
frozenset({0,
2})}),
frozenset({frozenset(),
frozenset({1})}),
frozenset({frozenset(),
frozenset({2})})}),
frozenset({frozenset(), frozenset({1})}): frozenset({frozenset({frozenset(),
frozenset({0})}),
frozenset({frozenset({1}),
frozenset({1,
2})}),
frozenset({frozenset(),
frozenset({2})}),
frozenset({frozenset({1}),
frozenset({0,
1})})}),
frozenset({frozenset({2}), frozenset()}): frozenset({frozenset({frozenset({2}),
frozenset({1,
2})}),
frozenset({frozenset(),
frozenset({0})}),
frozenset({frozenset(),
frozenset({1})}),
frozenset({frozenset({2}),
frozenset({0,
2})})}),
frozenset({frozenset({0, 1, 2}), frozenset({0, 1})}): frozenset({frozenset({frozenset({1,
2}),
frozenset({0,
1,
2})}),
frozenset({frozenset({0,
2}),
frozenset({0,
1,
2})}),
frozenset({frozenset({0}),
frozenset({0,
1})}),
frozenset({frozenset({1}),
frozenset({0,
1})})}),
frozenset({frozenset({0}), frozenset({0, 1})}): frozenset({frozenset({frozenset(),
frozenset({0})}),
frozenset({frozenset({0,
1}),
frozenset({0,
1,
2})}),
frozenset({frozenset({0}),
frozenset({0,
2})}),
frozenset({frozenset({1}),
frozenset({0,
1})})}),
frozenset({frozenset({2}), frozenset({0, 2})}): frozenset({frozenset({frozenset({0,
2}),
frozenset({0,
1,
2})}),
frozenset({frozenset({2}),
frozenset({1,
2})}),
frozenset({frozenset({0}),
frozenset({0,
2})}),
frozenset({frozenset(),
frozenset({2})})}),
frozenset({frozenset({0, 1, 2}), frozenset({0, 2})}): frozenset({frozenset({frozenset({1,
2}),
frozenset({0,
1,
2})}),
frozenset({frozenset({0,
1}),
frozenset({0,
1,
2})}),
frozenset({frozenset({0}),
frozenset({0,
2})}),
frozenset({frozenset({2}),
frozenset({0,
2})})}),
frozenset({frozenset({1, 2}), frozenset({0, 1, 2})}): frozenset({frozenset({frozenset({0,
2}),
frozenset({0,
1,
2})}),
frozenset({frozenset({0,
1}),
frozenset({0,
1,
2})}),
frozenset({frozenset({2}),
frozenset({1,
2})}),
frozenset({frozenset({1}),
frozenset({1,
2})})})}"""
cubo = test.test_set.linegraph(cube)
self.assertEqual(pprint.pformat(cubo), cubo_repr_tgt)
def test_depth(self):
nested_tuple = (1, (2, (3, (4, (5, 6)))))
nested_dict = {1: {2: {3: {4: {5: {6: 6}}}}}}
nested_list = [1, [2, [3, [4, [5, [6, []]]]]]]
self.assertEqual(pprint.pformat(nested_tuple), repr(nested_tuple))
self.assertEqual(pprint.pformat(nested_dict), repr(nested_dict))
self.assertEqual(pprint.pformat(nested_list), repr(nested_list))
lv1_tuple = '(1, (...))'
lv1_dict = '{1: {...}}'
lv1_list = '[1, [...]]'
self.assertEqual(pprint.pformat(nested_tuple, depth=1), lv1_tuple)
self.assertEqual(pprint.pformat(nested_dict, depth=1), lv1_dict)
self.assertEqual(pprint.pformat(nested_list, depth=1), lv1_list)
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.support.run_unittest(QueryTestCase)
if __name__ == "__main__":
test_main()