| import pprint |
| import unittest |
| |
| import test_support |
| |
| try: |
| uni = unicode |
| except NameError: |
| def uni(x):return x |
| |
| |
| 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_ |
| for safe in (2, 2.0, 2j, "abc", [3], (2,2), {3: 3}, uni("yaddayadda"), |
| self.a, self.b): |
| verify(not pprint.isrecursive(safe), |
| "expected not isrecursive for " + `safe`) |
| verify(pprint.isreadable(safe), |
| "expected isreadable for " + `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_ |
| |
| 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") |
| |
| # 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): |
| verify(not pprint.isrecursive(safe), |
| "expected not isrecursive for " + `safe`) |
| verify(pprint.isreadable(safe), |
| "expected isreadable for " + `safe`) |
| |
| def test_unreadable(self): |
| """Not recursive but not readable anyway.""" |
| verify = self.assert_ |
| for unreadable in type(3), pprint, pprint.isrecursive: |
| verify(not pprint.isrecursive(unreadable), |
| "expected not isrecursive for " + `unreadable`) |
| verify(not pprint.isreadable(unreadable), |
| "expected not isreadable for " + `unreadable`) |
| |
| def test_same_as_repr(self): |
| "Simple objects and small containers that should be same as repr()." |
| verify = self.assert_ |
| for simple in (0, 0L, 0+0j, 0.0, "", uni(""), (), [], {}, verify, pprint, |
| -6, -6L, -6-6j, -1.5, "x", uni("x"), (3,), [3], {3: 6}, |
| (1,2), [3,4], {5: 6, 7: 8}, |
| {"xy\tab\n": (3,), 5: [[]], (): {}}, |
| 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)) |
| |
| test_support.run_unittest(QueryTestCase) |