75 lines
2.7 KiB
Python
75 lines
2.7 KiB
Python
import pprint
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import unittest
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import test_support
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class QueryTestCase(unittest.TestCase):
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def setUp(self):
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self.a = range(100)
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self.b = range(200)
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self.a[-12] = self.b
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def test_basic(self):
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"""Verify .isrecursive() and .isreadable() w/o recursion."""
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verify = self.assert_
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for safe in (2, 2.0, 2j, "abc", [3], (2,2), {3: 3}, u"yaddayadda",
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self.a, self.b):
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verify(not pprint.isrecursive(safe),
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"expected not isrecursive for " + `safe`)
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verify(pprint.isreadable(safe),
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"expected isreadable for " + `safe`)
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def test_knotted(self):
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"""Verify .isrecursive() and .isreadable() w/ recursion."""
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# Tie a knot.
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self.b[67] = self.a
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# Messy dict.
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self.d = {}
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self.d[0] = self.d[1] = self.d[2] = self.d
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verify = self.assert_
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for icky in self.a, self.b, self.d, (self.d, self.d):
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verify(pprint.isrecursive(icky), "expected isrecursive")
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verify(not pprint.isreadable(icky), "expected not isreadable")
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# Break the cycles.
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self.d.clear()
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del self.a[:]
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del self.b[:]
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for safe in self.a, self.b, self.d, (self.d, self.d):
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verify(not pprint.isrecursive(safe),
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"expected not isrecursive for " + `safe`)
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verify(pprint.isreadable(safe),
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"expected isreadable for " + `safe`)
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def test_unreadable(self):
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"""Not recursive but not readable anyway."""
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verify = self.assert_
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for unreadable in type(3), pprint, pprint.isrecursive:
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verify(not pprint.isrecursive(unreadable),
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"expected not isrecursive for " + `unreadable`)
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verify(not pprint.isreadable(unreadable),
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"expected not isreadable for " + `unreadable`)
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def test_same_as_repr(self):
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"Simple objects and small containers that should be same as repr()."
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verify = self.assert_
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for simple in (0, 0L, 0+0j, 0.0, "", u"", (), [], {}, verify, pprint,
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-6, -6L, -6-6j, -1.5, "x", u"x", (3,), [3], {3: 6},
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(1,2), [3,4], {5: 6, 7: 8},
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{"xy\tab\n": (3,), 5: [[]], (): {}},
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range(10, -11, -1)
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):
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native = repr(simple)
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for function in "pformat", "saferepr":
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f = getattr(pprint, function)
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got = f(simple)
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verify(native == got, "expected %s got %s from pprint.%s" %
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(native, got, function))
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test_support.run_unittest(QueryTestCase)
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