import pprint import unittest from test 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)) 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}""" self.assertEqual(pprint.pformat(o), exp) 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 `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()