# Python test set -- built-in functions import test.test_support, unittest from test.test_support import fcmp, have_unicode, TESTFN, unlink, \ run_unittest, run_with_locale from operator import neg import sys, warnings, cStringIO, random, fractions, UserDict warnings.filterwarnings("ignore", "hex../oct.. of negative int", FutureWarning, __name__) warnings.filterwarnings("ignore", "integer argument expected", DeprecationWarning, "unittest") # count the number of test runs. # used to skip running test_execfile() multiple times numruns = 0 class Squares: def __init__(self, max): self.max = max self.sofar = [] def __len__(self): return len(self.sofar) def __getitem__(self, i): if not 0 <= i < self.max: raise IndexError n = len(self.sofar) while n <= i: self.sofar.append(n*n) n += 1 return self.sofar[i] class StrSquares: def __init__(self, max): self.max = max self.sofar = [] def __len__(self): return len(self.sofar) def __getitem__(self, i): if not 0 <= i < self.max: raise IndexError n = len(self.sofar) while n <= i: self.sofar.append(str(n*n)) n += 1 return self.sofar[i] class BitBucket: def write(self, line): pass class TestFailingBool: def __nonzero__(self): raise RuntimeError class TestFailingIter: def __iter__(self): raise RuntimeError class BuiltinTest(unittest.TestCase): def test_import(self): __import__('sys') __import__('time') __import__('string') __import__(name='sys') __import__(name='time', level=0) self.assertRaises(ImportError, __import__, 'spamspam') self.assertRaises(TypeError, __import__, 1, 2, 3, 4) self.assertRaises(ValueError, __import__, '') self.assertRaises(TypeError, __import__, 'sys', name='sys') def test_abs(self): # int self.assertEqual(abs(0), 0) self.assertEqual(abs(1234), 1234) self.assertEqual(abs(-1234), 1234) self.assertTrue(abs(-sys.maxint-1) > 0) # float self.assertEqual(abs(0.0), 0.0) self.assertEqual(abs(3.14), 3.14) self.assertEqual(abs(-3.14), 3.14) # long self.assertEqual(abs(0L), 0L) self.assertEqual(abs(1234L), 1234L) self.assertEqual(abs(-1234L), 1234L) # str self.assertRaises(TypeError, abs, 'a') def test_all(self): self.assertEqual(all([2, 4, 6]), True) self.assertEqual(all([2, None, 6]), False) self.assertRaises(RuntimeError, all, [2, TestFailingBool(), 6]) self.assertRaises(RuntimeError, all, TestFailingIter()) self.assertRaises(TypeError, all, 10) # Non-iterable self.assertRaises(TypeError, all) # No args self.assertRaises(TypeError, all, [2, 4, 6], []) # Too many args self.assertEqual(all([]), True) # Empty iterator S = [50, 60] self.assertEqual(all(x > 42 for x in S), True) S = [50, 40, 60] self.assertEqual(all(x > 42 for x in S), False) def test_any(self): self.assertEqual(any([None, None, None]), False) self.assertEqual(any([None, 4, None]), True) self.assertRaises(RuntimeError, any, [None, TestFailingBool(), 6]) self.assertRaises(RuntimeError, all, TestFailingIter()) self.assertRaises(TypeError, any, 10) # Non-iterable self.assertRaises(TypeError, any) # No args self.assertRaises(TypeError, any, [2, 4, 6], []) # Too many args self.assertEqual(any([]), False) # Empty iterator S = [40, 60, 30] self.assertEqual(any(x > 42 for x in S), True) S = [10, 20, 30] self.assertEqual(any(x > 42 for x in S), False) def test_neg(self): x = -sys.maxint-1 self.assert_(isinstance(x, int)) self.assertEqual(-x, sys.maxint+1) def test_apply(self): def f0(*args): self.assertEqual(args, ()) def f1(a1): self.assertEqual(a1, 1) def f2(a1, a2): self.assertEqual(a1, 1) self.assertEqual(a2, 2) def f3(a1, a2, a3): self.assertEqual(a1, 1) self.assertEqual(a2, 2) self.assertEqual(a3, 3) apply(f0, ()) apply(f1, (1,)) apply(f2, (1, 2)) apply(f3, (1, 2, 3)) # A PyCFunction that takes only positional parameters should allow an # empty keyword dictionary to pass without a complaint, but raise a # TypeError if the dictionary is non-empty. apply(id, (1,), {}) self.assertRaises(TypeError, apply, id, (1,), {"foo": 1}) self.assertRaises(TypeError, apply) self.assertRaises(TypeError, apply, id, 42) self.assertRaises(TypeError, apply, id, (42,), 42) def test_callable(self): self.assert_(callable(len)) def f(): pass self.assert_(callable(f)) class C: def meth(self): pass self.assert_(callable(C)) x = C() self.assert_(callable(x.meth)) self.assert_(not callable(x)) class D(C): def __call__(self): pass y = D() self.assert_(callable(y)) y() def test_chr(self): self.assertEqual(chr(32), ' ') self.assertEqual(chr(65), 'A') self.assertEqual(chr(97), 'a') self.assertEqual(chr(0xff), '\xff') self.assertRaises(ValueError, chr, 256) self.assertRaises(TypeError, chr) def test_cmp(self): self.assertEqual(cmp(-1, 1), -1) self.assertEqual(cmp(1, -1), 1) self.assertEqual(cmp(1, 1), 0) # verify that circular objects are not handled a = []; a.append(a) b = []; b.append(b) from UserList import UserList c = UserList(); c.append(c) self.assertRaises(RuntimeError, cmp, a, b) self.assertRaises(RuntimeError, cmp, b, c) self.assertRaises(RuntimeError, cmp, c, a) self.assertRaises(RuntimeError, cmp, a, c) # okay, now break the cycles a.pop(); b.pop(); c.pop() self.assertRaises(TypeError, cmp) def test_coerce(self): self.assert_(not fcmp(coerce(1, 1.1), (1.0, 1.1))) self.assertEqual(coerce(1, 1L), (1L, 1L)) self.assert_(not fcmp(coerce(1L, 1.1), (1.0, 1.1))) self.assertRaises(TypeError, coerce) class BadNumber: def __coerce__(self, other): raise ValueError self.assertRaises(ValueError, coerce, 42, BadNumber()) self.assertRaises(OverflowError, coerce, 0.5, int("12345" * 1000)) def test_compile(self): compile('print 1\n', '', 'exec') bom = '\xef\xbb\xbf' compile(bom + 'print 1\n', '', 'exec') compile(source='pass', filename='?', mode='exec') compile(dont_inherit=0, filename='tmp', source='0', mode='eval') compile('pass', '?', dont_inherit=1, mode='exec') self.assertRaises(TypeError, compile) self.assertRaises(ValueError, compile, 'print 42\n', '', 'badmode') self.assertRaises(ValueError, compile, 'print 42\n', '', 'single', 0xff) self.assertRaises(TypeError, compile, chr(0), 'f', 'exec') self.assertRaises(TypeError, compile, 'pass', '?', 'exec', mode='eval', source='0', filename='tmp') if have_unicode: compile(unicode('print u"\xc3\xa5"\n', 'utf8'), '', 'exec') self.assertRaises(TypeError, compile, unichr(0), 'f', 'exec') self.assertRaises(ValueError, compile, unicode('a = 1'), 'f', 'bad') def test_delattr(self): import sys sys.spam = 1 delattr(sys, 'spam') self.assertRaises(TypeError, delattr) def test_dir(self): # dir(wrong number of arguments) self.assertRaises(TypeError, dir, 42, 42) # dir() - local scope local_var = 1 self.assert_('local_var' in dir()) # dir(module) import sys self.assert_('exit' in dir(sys)) # dir(module_with_invalid__dict__) import types class Foo(types.ModuleType): __dict__ = 8 f = Foo("foo") self.assertRaises(TypeError, dir, f) # dir(type) self.assert_("strip" in dir(str)) self.assert_("__mro__" not in dir(str)) # dir(obj) class Foo(object): def __init__(self): self.x = 7 self.y = 8 self.z = 9 f = Foo() self.assert_("y" in dir(f)) # dir(obj_no__dict__) class Foo(object): __slots__ = [] f = Foo() self.assert_("__repr__" in dir(f)) # dir(obj_no__class__with__dict__) # (an ugly trick to cause getattr(f, "__class__") to fail) class Foo(object): __slots__ = ["__class__", "__dict__"] def __init__(self): self.bar = "wow" f = Foo() self.assert_("__repr__" not in dir(f)) self.assert_("bar" in dir(f)) # dir(obj_using __dir__) class Foo(object): def __dir__(self): return ["kan", "ga", "roo"] f = Foo() self.assert_(dir(f) == ["ga", "kan", "roo"]) # dir(obj__dir__not_list) class Foo(object): def __dir__(self): return 7 f = Foo() self.assertRaises(TypeError, dir, f) def test_divmod(self): self.assertEqual(divmod(12, 7), (1, 5)) self.assertEqual(divmod(-12, 7), (-2, 2)) self.assertEqual(divmod(12, -7), (-2, -2)) self.assertEqual(divmod(-12, -7), (1, -5)) self.assertEqual(divmod(12L, 7L), (1L, 5L)) self.assertEqual(divmod(-12L, 7L), (-2L, 2L)) self.assertEqual(divmod(12L, -7L), (-2L, -2L)) self.assertEqual(divmod(-12L, -7L), (1L, -5L)) self.assertEqual(divmod(12, 7L), (1, 5L)) self.assertEqual(divmod(-12, 7L), (-2, 2L)) self.assertEqual(divmod(12L, -7), (-2L, -2)) self.assertEqual(divmod(-12L, -7), (1L, -5)) self.assertEqual(divmod(-sys.maxint-1, -1), (sys.maxint+1, 0)) self.assert_(not fcmp(divmod(3.25, 1.0), (3.0, 0.25))) self.assert_(not fcmp(divmod(-3.25, 1.0), (-4.0, 0.75))) self.assert_(not fcmp(divmod(3.25, -1.0), (-4.0, -0.75))) self.assert_(not fcmp(divmod(-3.25, -1.0), (3.0, -0.25))) self.assertRaises(TypeError, divmod) def test_eval(self): self.assertEqual(eval('1+1'), 2) self.assertEqual(eval(' 1+1\n'), 2) globals = {'a': 1, 'b': 2} locals = {'b': 200, 'c': 300} self.assertEqual(eval('a', globals) , 1) self.assertEqual(eval('a', globals, locals), 1) self.assertEqual(eval('b', globals, locals), 200) self.assertEqual(eval('c', globals, locals), 300) if have_unicode: self.assertEqual(eval(unicode('1+1')), 2) self.assertEqual(eval(unicode(' 1+1\n')), 2) globals = {'a': 1, 'b': 2} locals = {'b': 200, 'c': 300} if have_unicode: self.assertEqual(eval(unicode('a'), globals), 1) self.assertEqual(eval(unicode('a'), globals, locals), 1) self.assertEqual(eval(unicode('b'), globals, locals), 200) self.assertEqual(eval(unicode('c'), globals, locals), 300) bom = '\xef\xbb\xbf' self.assertEqual(eval(bom + 'a', globals, locals), 1) self.assertEqual(eval(unicode('u"\xc3\xa5"', 'utf8'), globals), unicode('\xc3\xa5', 'utf8')) self.assertRaises(TypeError, eval) self.assertRaises(TypeError, eval, ()) def test_general_eval(self): # Tests that general mappings can be used for the locals argument class M: "Test mapping interface versus possible calls from eval()." def __getitem__(self, key): if key == 'a': return 12 raise KeyError def keys(self): return list('xyz') m = M() g = globals() self.assertEqual(eval('a', g, m), 12) self.assertRaises(NameError, eval, 'b', g, m) self.assertEqual(eval('dir()', g, m), list('xyz')) self.assertEqual(eval('globals()', g, m), g) self.assertEqual(eval('locals()', g, m), m) self.assertRaises(TypeError, eval, 'a', m) class A: "Non-mapping" pass m = A() self.assertRaises(TypeError, eval, 'a', g, m) # Verify that dict subclasses work as well class D(dict): def __getitem__(self, key): if key == 'a': return 12 return dict.__getitem__(self, key) def keys(self): return list('xyz') d = D() self.assertEqual(eval('a', g, d), 12) self.assertRaises(NameError, eval, 'b', g, d) self.assertEqual(eval('dir()', g, d), list('xyz')) self.assertEqual(eval('globals()', g, d), g) self.assertEqual(eval('locals()', g, d), d) # Verify locals stores (used by list comps) eval('[locals() for i in (2,3)]', g, d) eval('[locals() for i in (2,3)]', g, UserDict.UserDict()) class SpreadSheet: "Sample application showing nested, calculated lookups." _cells = {} def __setitem__(self, key, formula): self._cells[key] = formula def __getitem__(self, key): return eval(self._cells[key], globals(), self) ss = SpreadSheet() ss['a1'] = '5' ss['a2'] = 'a1*6' ss['a3'] = 'a2*7' self.assertEqual(ss['a3'], 210) # Verify that dir() catches a non-list returned by eval # SF bug #1004669 class C: def __getitem__(self, item): raise KeyError(item) def keys(self): return 'a' self.assertRaises(TypeError, eval, 'dir()', globals(), C()) # Done outside of the method test_z to get the correct scope z = 0 f = open(TESTFN, 'w') f.write('z = z+1\n') f.write('z = z*2\n') f.close() execfile(TESTFN) def test_execfile(self): global numruns if numruns: return numruns += 1 globals = {'a': 1, 'b': 2} locals = {'b': 200, 'c': 300} self.assertEqual(self.__class__.z, 2) globals['z'] = 0 execfile(TESTFN, globals) self.assertEqual(globals['z'], 2) locals['z'] = 0 execfile(TESTFN, globals, locals) self.assertEqual(locals['z'], 2) class M: "Test mapping interface versus possible calls from execfile()." def __init__(self): self.z = 10 def __getitem__(self, key): if key == 'z': return self.z raise KeyError def __setitem__(self, key, value): if key == 'z': self.z = value return raise KeyError locals = M() locals['z'] = 0 execfile(TESTFN, globals, locals) self.assertEqual(locals['z'], 2) unlink(TESTFN) self.assertRaises(TypeError, execfile) self.assertRaises(TypeError, execfile, TESTFN, {}, ()) import os self.assertRaises(IOError, execfile, os.curdir) self.assertRaises(IOError, execfile, "I_dont_exist") def test_filter(self): self.assertEqual(filter(lambda c: 'a' <= c <= 'z', 'Hello World'), 'elloorld') self.assertEqual(filter(None, [1, 'hello', [], [3], '', None, 9, 0]), [1, 'hello', [3], 9]) self.assertEqual(filter(lambda x: x > 0, [1, -3, 9, 0, 2]), [1, 9, 2]) self.assertEqual(filter(None, Squares(10)), [1, 4, 9, 16, 25, 36, 49, 64, 81]) self.assertEqual(filter(lambda x: x%2, Squares(10)), [1, 9, 25, 49, 81]) def identity(item): return 1 filter(identity, Squares(5)) self.assertRaises(TypeError, filter) class BadSeq(object): def __getitem__(self, index): if index<4: return 42 raise ValueError self.assertRaises(ValueError, filter, lambda x: x, BadSeq()) def badfunc(): pass self.assertRaises(TypeError, filter, badfunc, range(5)) # test bltinmodule.c::filtertuple() self.assertEqual(filter(None, (1, 2)), (1, 2)) self.assertEqual(filter(lambda x: x>=3, (1, 2, 3, 4)), (3, 4)) self.assertRaises(TypeError, filter, 42, (1, 2)) # test bltinmodule.c::filterstring() self.assertEqual(filter(None, "12"), "12") self.assertEqual(filter(lambda x: x>="3", "1234"), "34") self.assertRaises(TypeError, filter, 42, "12") class badstr(str): def __getitem__(self, index): raise ValueError self.assertRaises(ValueError, filter, lambda x: x >="3", badstr("1234")) class badstr2(str): def __getitem__(self, index): return 42 self.assertRaises(TypeError, filter, lambda x: x >=42, badstr2("1234")) class weirdstr(str): def __getitem__(self, index): return weirdstr(2*str.__getitem__(self, index)) self.assertEqual(filter(lambda x: x>="33", weirdstr("1234")), "3344") class shiftstr(str): def __getitem__(self, index): return chr(ord(str.__getitem__(self, index))+1) self.assertEqual(filter(lambda x: x>="3", shiftstr("1234")), "345") if have_unicode: # test bltinmodule.c::filterunicode() self.assertEqual(filter(None, unicode("12")), unicode("12")) self.assertEqual(filter(lambda x: x>="3", unicode("1234")), unicode("34")) self.assertRaises(TypeError, filter, 42, unicode("12")) self.assertRaises(ValueError, filter, lambda x: x >="3", badstr(unicode("1234"))) class badunicode(unicode): def __getitem__(self, index): return 42 self.assertRaises(TypeError, filter, lambda x: x >=42, badunicode("1234")) class weirdunicode(unicode): def __getitem__(self, index): return weirdunicode(2*unicode.__getitem__(self, index)) self.assertEqual( filter(lambda x: x>=unicode("33"), weirdunicode("1234")), unicode("3344")) class shiftunicode(unicode): def __getitem__(self, index): return unichr(ord(unicode.__getitem__(self, index))+1) self.assertEqual( filter(lambda x: x>=unicode("3"), shiftunicode("1234")), unicode("345") ) def test_filter_subclasses(self): # test that filter() never returns tuple, str or unicode subclasses # and that the result always goes through __getitem__ funcs = (None, bool, lambda x: True) class tuple2(tuple): def __getitem__(self, index): return 2*tuple.__getitem__(self, index) class str2(str): def __getitem__(self, index): return 2*str.__getitem__(self, index) inputs = { tuple2: {(): (), (1, 2, 3): (2, 4, 6)}, str2: {"": "", "123": "112233"} } if have_unicode: class unicode2(unicode): def __getitem__(self, index): return 2*unicode.__getitem__(self, index) inputs[unicode2] = { unicode(): unicode(), unicode("123"): unicode("112233") } for (cls, inps) in inputs.iteritems(): for (inp, exp) in inps.iteritems(): # make sure the output goes through __getitem__ # even if func is None self.assertEqual( filter(funcs[0], cls(inp)), filter(funcs[1], cls(inp)) ) for func in funcs: outp = filter(func, cls(inp)) self.assertEqual(outp, exp) self.assert_(not isinstance(outp, cls)) def test_getattr(self): import sys self.assert_(getattr(sys, 'stdout') is sys.stdout) self.assertRaises(TypeError, getattr, sys, 1) self.assertRaises(TypeError, getattr, sys, 1, "foo") self.assertRaises(TypeError, getattr) if have_unicode: self.assertRaises(UnicodeError, getattr, sys, unichr(sys.maxunicode)) def test_hasattr(self): import sys self.assert_(hasattr(sys, 'stdout')) self.assertRaises(TypeError, hasattr, sys, 1) self.assertRaises(TypeError, hasattr) if have_unicode: self.assertRaises(UnicodeError, hasattr, sys, unichr(sys.maxunicode)) # Check that hasattr allows SystemExit and KeyboardInterrupts by class A: def __getattr__(self, what): raise KeyboardInterrupt self.assertRaises(KeyboardInterrupt, hasattr, A(), "b") class B: def __getattr__(self, what): raise SystemExit self.assertRaises(SystemExit, hasattr, B(), "b") def test_hash(self): hash(None) self.assertEqual(hash(1), hash(1L)) self.assertEqual(hash(1), hash(1.0)) hash('spam') if have_unicode: self.assertEqual(hash('spam'), hash(unicode('spam'))) hash((0,1,2,3)) def f(): pass self.assertRaises(TypeError, hash, []) self.assertRaises(TypeError, hash, {}) # Bug 1536021: Allow hash to return long objects class X: def __hash__(self): return 2**100 self.assertEquals(type(hash(X())), int) class Y(object): def __hash__(self): return 2**100 self.assertEquals(type(hash(Y())), int) class Z(long): def __hash__(self): return self self.assertEquals(hash(Z(42)), hash(42L)) def test_hex(self): self.assertEqual(hex(16), '0x10') self.assertEqual(hex(16L), '0x10L') self.assertEqual(hex(-16), '-0x10') self.assertEqual(hex(-16L), '-0x10L') self.assertRaises(TypeError, hex, {}) def test_id(self): id(None) id(1) id(1L) id(1.0) id('spam') id((0,1,2,3)) id([0,1,2,3]) id({'spam': 1, 'eggs': 2, 'ham': 3}) # Test input() later, together with raw_input def test_intern(self): self.assertRaises(TypeError, intern) s = "never interned before" self.assert_(intern(s) is s) s2 = s.swapcase().swapcase() self.assert_(intern(s2) is s) # Subclasses of string can't be interned, because they # provide too much opportunity for insane things to happen. # We don't want them in the interned dict and if they aren't # actually interned, we don't want to create the appearance # that they are by allowing intern() to succeeed. class S(str): def __hash__(self): return 123 self.assertRaises(TypeError, intern, S("abc")) # It's still safe to pass these strings to routines that # call intern internally, e.g. PyObject_SetAttr(). s = S("abc") setattr(s, s, s) self.assertEqual(getattr(s, s), s) def test_iter(self): self.assertRaises(TypeError, iter) self.assertRaises(TypeError, iter, 42, 42) lists = [("1", "2"), ["1", "2"], "12"] if have_unicode: lists.append(unicode("12")) for l in lists: i = iter(l) self.assertEqual(i.next(), '1') self.assertEqual(i.next(), '2') self.assertRaises(StopIteration, i.next) def test_isinstance(self): class C: pass class D(C): pass class E: pass c = C() d = D() e = E() self.assert_(isinstance(c, C)) self.assert_(isinstance(d, C)) self.assert_(not isinstance(e, C)) self.assert_(not isinstance(c, D)) self.assert_(not isinstance('foo', E)) self.assertRaises(TypeError, isinstance, E, 'foo') self.assertRaises(TypeError, isinstance) def test_issubclass(self): class C: pass class D(C): pass class E: pass c = C() d = D() e = E() self.assert_(issubclass(D, C)) self.assert_(issubclass(C, C)) self.assert_(not issubclass(C, D)) self.assertRaises(TypeError, issubclass, 'foo', E) self.assertRaises(TypeError, issubclass, E, 'foo') self.assertRaises(TypeError, issubclass) def test_len(self): self.assertEqual(len('123'), 3) self.assertEqual(len(()), 0) self.assertEqual(len((1, 2, 3, 4)), 4) self.assertEqual(len([1, 2, 3, 4]), 4) self.assertEqual(len({}), 0) self.assertEqual(len({'a':1, 'b': 2}), 2) class BadSeq: def __len__(self): raise ValueError self.assertRaises(ValueError, len, BadSeq()) def test_map(self): self.assertEqual( map(None, 'hello world'), ['h','e','l','l','o',' ','w','o','r','l','d'] ) self.assertEqual( map(None, 'abcd', 'efg'), [('a', 'e'), ('b', 'f'), ('c', 'g'), ('d', None)] ) self.assertEqual( map(None, range(10)), [0, 1, 2, 3, 4, 5, 6, 7, 8, 9] ) self.assertEqual( map(lambda x: x*x, range(1,4)), [1, 4, 9] ) try: from math import sqrt except ImportError: def sqrt(x): return pow(x, 0.5) self.assertEqual( map(lambda x: map(sqrt,x), [[16, 4], [81, 9]]), [[4.0, 2.0], [9.0, 3.0]] ) self.assertEqual( map(lambda x, y: x+y, [1,3,2], [9,1,4]), [10, 4, 6] ) def plus(*v): accu = 0 for i in v: accu = accu + i return accu self.assertEqual( map(plus, [1, 3, 7]), [1, 3, 7] ) self.assertEqual( map(plus, [1, 3, 7], [4, 9, 2]), [1+4, 3+9, 7+2] ) self.assertEqual( map(plus, [1, 3, 7], [4, 9, 2], [1, 1, 0]), [1+4+1, 3+9+1, 7+2+0] ) self.assertEqual( map(None, Squares(10)), [0, 1, 4, 9, 16, 25, 36, 49, 64, 81] ) self.assertEqual( map(int, Squares(10)), [0, 1, 4, 9, 16, 25, 36, 49, 64, 81] ) self.assertEqual( map(None, Squares(3), Squares(2)), [(0,0), (1,1), (4,None)] ) self.assertEqual( map(max, Squares(3), Squares(2)), [0, 1, 4] ) self.assertRaises(TypeError, map) self.assertRaises(TypeError, map, lambda x: x, 42) self.assertEqual(map(None, [42]), [42]) class BadSeq: def __getitem__(self, index): raise ValueError self.assertRaises(ValueError, map, lambda x: x, BadSeq()) def badfunc(x): raise RuntimeError self.assertRaises(RuntimeError, map, badfunc, range(5)) def test_max(self): self.assertEqual(max('123123'), '3') self.assertEqual(max(1, 2, 3), 3) self.assertEqual(max((1, 2, 3, 1, 2, 3)), 3) self.assertEqual(max([1, 2, 3, 1, 2, 3]), 3) self.assertEqual(max(1, 2L, 3.0), 3.0) self.assertEqual(max(1L, 2.0, 3), 3) self.assertEqual(max(1.0, 2, 3L), 3L) for stmt in ( "max(key=int)", # no args "max(1, key=int)", # single arg not iterable "max(1, 2, keystone=int)", # wrong keyword "max(1, 2, key=int, abc=int)", # two many keywords "max(1, 2, key=1)", # keyfunc is not callable ): try: exec(stmt) in globals() except TypeError: pass else: self.fail(stmt) self.assertEqual(max((1,), key=neg), 1) # one elem iterable self.assertEqual(max((1,2), key=neg), 1) # two elem iterable self.assertEqual(max(1, 2, key=neg), 1) # two elems data = [random.randrange(200) for i in range(100)] keys = dict((elem, random.randrange(50)) for elem in data) f = keys.__getitem__ self.assertEqual(max(data, key=f), sorted(reversed(data), key=f)[-1]) def test_min(self): self.assertEqual(min('123123'), '1') self.assertEqual(min(1, 2, 3), 1) self.assertEqual(min((1, 2, 3, 1, 2, 3)), 1) self.assertEqual(min([1, 2, 3, 1, 2, 3]), 1) self.assertEqual(min(1, 2L, 3.0), 1) self.assertEqual(min(1L, 2.0, 3), 1L) self.assertEqual(min(1.0, 2, 3L), 1.0) self.assertRaises(TypeError, min) self.assertRaises(TypeError, min, 42) self.assertRaises(ValueError, min, ()) class BadSeq: def __getitem__(self, index): raise ValueError self.assertRaises(ValueError, min, BadSeq()) class BadNumber: def __cmp__(self, other): raise ValueError self.assertRaises(ValueError, min, (42, BadNumber())) for stmt in ( "min(key=int)", # no args "min(1, key=int)", # single arg not iterable "min(1, 2, keystone=int)", # wrong keyword "min(1, 2, key=int, abc=int)", # two many keywords "min(1, 2, key=1)", # keyfunc is not callable ): try: exec(stmt) in globals() except TypeError: pass else: self.fail(stmt) self.assertEqual(min((1,), key=neg), 1) # one elem iterable self.assertEqual(min((1,2), key=neg), 2) # two elem iterable self.assertEqual(min(1, 2, key=neg), 2) # two elems data = [random.randrange(200) for i in range(100)] keys = dict((elem, random.randrange(50)) for elem in data) f = keys.__getitem__ self.assertEqual(min(data, key=f), sorted(data, key=f)[0]) def test_next(self): it = iter(range(2)) self.assertEqual(next(it), 0) self.assertEqual(next(it), 1) self.assertRaises(StopIteration, next, it) self.assertRaises(StopIteration, next, it) self.assertEquals(next(it, 42), 42) class Iter(object): def __iter__(self): return self def next(self): raise StopIteration it = iter(Iter()) self.assertEquals(next(it, 42), 42) self.assertRaises(StopIteration, next, it) def gen(): yield 1 return it = gen() self.assertEquals(next(it), 1) self.assertRaises(StopIteration, next, it) self.assertEquals(next(it, 42), 42) def test_oct(self): self.assertEqual(oct(100), '0144') self.assertEqual(oct(100L), '0144L') self.assertEqual(oct(-100), '-0144') self.assertEqual(oct(-100L), '-0144L') self.assertRaises(TypeError, oct, ()) def write_testfile(self): # NB the first 4 lines are also used to test input and raw_input, below fp = open(TESTFN, 'w') try: fp.write('1+1\n') fp.write('1+1\n') fp.write('The quick brown fox jumps over the lazy dog') fp.write('.\n') fp.write('Dear John\n') fp.write('XXX'*100) fp.write('YYY'*100) finally: fp.close() def test_open(self): self.write_testfile() fp = open(TESTFN, 'r') try: self.assertEqual(fp.readline(4), '1+1\n') self.assertEqual(fp.readline(4), '1+1\n') self.assertEqual(fp.readline(), 'The quick brown fox jumps over the lazy dog.\n') self.assertEqual(fp.readline(4), 'Dear') self.assertEqual(fp.readline(100), ' John\n') self.assertEqual(fp.read(300), 'XXX'*100) self.assertEqual(fp.read(1000), 'YYY'*100) finally: fp.close() unlink(TESTFN) def test_ord(self): self.assertEqual(ord(' '), 32) self.assertEqual(ord('A'), 65) self.assertEqual(ord('a'), 97) if have_unicode: self.assertEqual(ord(unichr(sys.maxunicode)), sys.maxunicode) self.assertRaises(TypeError, ord, 42) if have_unicode: self.assertRaises(TypeError, ord, unicode("12")) def test_pow(self): self.assertEqual(pow(0,0), 1) self.assertEqual(pow(0,1), 0) self.assertEqual(pow(1,0), 1) self.assertEqual(pow(1,1), 1) self.assertEqual(pow(2,0), 1) self.assertEqual(pow(2,10), 1024) self.assertEqual(pow(2,20), 1024*1024) self.assertEqual(pow(2,30), 1024*1024*1024) self.assertEqual(pow(-2,0), 1) self.assertEqual(pow(-2,1), -2) self.assertEqual(pow(-2,2), 4) self.assertEqual(pow(-2,3), -8) self.assertEqual(pow(0L,0), 1) self.assertEqual(pow(0L,1), 0) self.assertEqual(pow(1L,0), 1) self.assertEqual(pow(1L,1), 1) self.assertEqual(pow(2L,0), 1) self.assertEqual(pow(2L,10), 1024) self.assertEqual(pow(2L,20), 1024*1024) self.assertEqual(pow(2L,30), 1024*1024*1024) self.assertEqual(pow(-2L,0), 1) self.assertEqual(pow(-2L,1), -2) self.assertEqual(pow(-2L,2), 4) self.assertEqual(pow(-2L,3), -8) self.assertAlmostEqual(pow(0.,0), 1.) self.assertAlmostEqual(pow(0.,1), 0.) self.assertAlmostEqual(pow(1.,0), 1.) self.assertAlmostEqual(pow(1.,1), 1.) self.assertAlmostEqual(pow(2.,0), 1.) self.assertAlmostEqual(pow(2.,10), 1024.) self.assertAlmostEqual(pow(2.,20), 1024.*1024.) self.assertAlmostEqual(pow(2.,30), 1024.*1024.*1024.) self.assertAlmostEqual(pow(-2.,0), 1.) self.assertAlmostEqual(pow(-2.,1), -2.) self.assertAlmostEqual(pow(-2.,2), 4.) self.assertAlmostEqual(pow(-2.,3), -8.) for x in 2, 2L, 2.0: for y in 10, 10L, 10.0: for z in 1000, 1000L, 1000.0: if isinstance(x, float) or \ isinstance(y, float) or \ isinstance(z, float): self.assertRaises(TypeError, pow, x, y, z) else: self.assertAlmostEqual(pow(x, y, z), 24.0) self.assertRaises(TypeError, pow, -1, -2, 3) self.assertRaises(ValueError, pow, 1, 2, 0) self.assertRaises(TypeError, pow, -1L, -2L, 3L) self.assertRaises(ValueError, pow, 1L, 2L, 0L) # Will return complex in 3.0: self.assertRaises(ValueError, pow, -342.43, 0.234) self.assertRaises(TypeError, pow) def test_range(self): self.assertEqual(range(3), [0, 1, 2]) self.assertEqual(range(1, 5), [1, 2, 3, 4]) self.assertEqual(range(0), []) self.assertEqual(range(-3), []) self.assertEqual(range(1, 10, 3), [1, 4, 7]) self.assertEqual(range(5, -5, -3), [5, 2, -1, -4]) # Now test range() with longs self.assertEqual(range(-2**100), []) self.assertEqual(range(0, -2**100), []) self.assertEqual(range(0, 2**100, -1), []) self.assertEqual(range(0, 2**100, -1), []) a = long(10 * sys.maxint) b = long(100 * sys.maxint) c = long(50 * sys.maxint) self.assertEqual(range(a, a+2), [a, a+1]) self.assertEqual(range(a+2, a, -1L), [a+2, a+1]) self.assertEqual(range(a+4, a, -2), [a+4, a+2]) seq = range(a, b, c) self.assert_(a in seq) self.assert_(b not in seq) self.assertEqual(len(seq), 2) seq = range(b, a, -c) self.assert_(b in seq) self.assert_(a not in seq) self.assertEqual(len(seq), 2) seq = range(-a, -b, -c) self.assert_(-a in seq) self.assert_(-b not in seq) self.assertEqual(len(seq), 2) self.assertRaises(TypeError, range) self.assertRaises(TypeError, range, 1, 2, 3, 4) self.assertRaises(ValueError, range, 1, 2, 0) self.assertRaises(ValueError, range, a, a + 1, long(0)) class badzero(int): def __cmp__(self, other): raise RuntimeError self.assertRaises(RuntimeError, range, a, a + 1, badzero(1)) # Reject floats when it would require PyLongs to represent. # (smaller floats still accepted, but deprecated) self.assertRaises(TypeError, range, 1e100, 1e101, 1e101) self.assertRaises(TypeError, range, 0, "spam") self.assertRaises(TypeError, range, 0, 42, "spam") self.assertRaises(OverflowError, range, -sys.maxint, sys.maxint) self.assertRaises(OverflowError, range, 0, 2*sys.maxint) def test_input_and_raw_input(self): self.write_testfile() fp = open(TESTFN, 'r') savestdin = sys.stdin savestdout = sys.stdout # Eats the echo try: sys.stdin = fp sys.stdout = BitBucket() self.assertEqual(input(), 2) self.assertEqual(input('testing\n'), 2) self.assertEqual(raw_input(), 'The quick brown fox jumps over the lazy dog.') self.assertEqual(raw_input('testing\n'), 'Dear John') # SF 1535165: don't segfault on closed stdin # sys.stdout must be a regular file for triggering sys.stdout = savestdout sys.stdin.close() self.assertRaises(ValueError, input) sys.stdout = BitBucket() sys.stdin = cStringIO.StringIO("NULL\0") self.assertRaises(TypeError, input, 42, 42) sys.stdin = cStringIO.StringIO(" 'whitespace'") self.assertEqual(input(), 'whitespace') sys.stdin = cStringIO.StringIO() self.assertRaises(EOFError, input) # SF 876178: make sure input() respect future options. sys.stdin = cStringIO.StringIO('1/2') sys.stdout = cStringIO.StringIO() exec compile('print input()', 'test_builtin_tmp', 'exec') sys.stdin.seek(0, 0) exec compile('from __future__ import division;print input()', 'test_builtin_tmp', 'exec') sys.stdin.seek(0, 0) exec compile('print input()', 'test_builtin_tmp', 'exec') # The result we expect depends on whether new division semantics # are already in effect. if 1/2 == 0: # This test was compiled with old semantics. expected = ['0', '0.5', '0'] else: # This test was compiled with new semantics (e.g., -Qnew # was given on the command line. expected = ['0.5', '0.5', '0.5'] self.assertEqual(sys.stdout.getvalue().splitlines(), expected) del sys.stdout self.assertRaises(RuntimeError, input, 'prompt') del sys.stdin self.assertRaises(RuntimeError, input, 'prompt') finally: sys.stdin = savestdin sys.stdout = savestdout fp.close() unlink(TESTFN) def test_reduce(self): self.assertEqual(reduce(lambda x, y: x+y, ['a', 'b', 'c'], ''), 'abc') self.assertEqual( reduce(lambda x, y: x+y, [['a', 'c'], [], ['d', 'w']], []), ['a','c','d','w'] ) self.assertEqual(reduce(lambda x, y: x*y, range(2,8), 1), 5040) self.assertEqual( reduce(lambda x, y: x*y, range(2,21), 1L), 2432902008176640000L ) self.assertEqual(reduce(lambda x, y: x+y, Squares(10)), 285) self.assertEqual(reduce(lambda x, y: x+y, Squares(10), 0), 285) self.assertEqual(reduce(lambda x, y: x+y, Squares(0), 0), 0) self.assertRaises(TypeError, reduce) self.assertRaises(TypeError, reduce, 42, 42) self.assertRaises(TypeError, reduce, 42, 42, 42) self.assertEqual(reduce(42, "1"), "1") # func is never called with one item self.assertEqual(reduce(42, "", "1"), "1") # func is never called with one item self.assertRaises(TypeError, reduce, 42, (42, 42)) class BadSeq: def __getitem__(self, index): raise ValueError self.assertRaises(ValueError, reduce, 42, BadSeq()) def test_reload(self): import marshal reload(marshal) import string reload(string) ## import sys ## self.assertRaises(ImportError, reload, sys) def test_repr(self): self.assertEqual(repr(''), '\'\'') self.assertEqual(repr(0), '0') self.assertEqual(repr(0L), '0L') self.assertEqual(repr(()), '()') self.assertEqual(repr([]), '[]') self.assertEqual(repr({}), '{}') a = [] a.append(a) self.assertEqual(repr(a), '[[...]]') a = {} a[0] = a self.assertEqual(repr(a), '{0: {...}}') def test_round(self): self.assertEqual(round(0.0), 0.0) self.assertEqual(type(round(0.0)), float) # Will be int in 3.0. self.assertEqual(round(1.0), 1.0) self.assertEqual(round(10.0), 10.0) self.assertEqual(round(1000000000.0), 1000000000.0) self.assertEqual(round(1e20), 1e20) self.assertEqual(round(-1.0), -1.0) self.assertEqual(round(-10.0), -10.0) self.assertEqual(round(-1000000000.0), -1000000000.0) self.assertEqual(round(-1e20), -1e20) self.assertEqual(round(0.1), 0.0) self.assertEqual(round(1.1), 1.0) self.assertEqual(round(10.1), 10.0) self.assertEqual(round(1000000000.1), 1000000000.0) self.assertEqual(round(-1.1), -1.0) self.assertEqual(round(-10.1), -10.0) self.assertEqual(round(-1000000000.1), -1000000000.0) self.assertEqual(round(0.9), 1.0) self.assertEqual(round(9.9), 10.0) self.assertEqual(round(999999999.9), 1000000000.0) self.assertEqual(round(-0.9), -1.0) self.assertEqual(round(-9.9), -10.0) self.assertEqual(round(-999999999.9), -1000000000.0) self.assertEqual(round(-8.0, -1), -10.0) self.assertEqual(type(round(-8.0, -1)), float) self.assertEqual(type(round(-8.0, 0)), float) self.assertEqual(type(round(-8.0, 1)), float) # Check half rounding behaviour. self.assertEqual(round(5.5), 6) self.assertEqual(round(6.5), 7) self.assertEqual(round(-5.5), -6) self.assertEqual(round(-6.5), -7) # Check behavior on ints self.assertEqual(round(0), 0) self.assertEqual(round(8), 8) self.assertEqual(round(-8), -8) self.assertEqual(type(round(0)), float) # Will be int in 3.0. self.assertEqual(type(round(-8, -1)), float) self.assertEqual(type(round(-8, 0)), float) self.assertEqual(type(round(-8, 1)), float) # test new kwargs self.assertEqual(round(number=-8.0, ndigits=-1), -10.0) self.assertRaises(TypeError, round) # test generic rounding delegation for reals class TestRound(object): def __float__(self): return 23.0 class TestNoRound(object): pass self.assertEqual(round(TestRound()), 23) self.assertRaises(TypeError, round, 1, 2, 3) self.assertRaises(TypeError, round, TestNoRound()) t = TestNoRound() t.__float__ = lambda *args: args self.assertRaises(TypeError, round, t) self.assertRaises(TypeError, round, t, 0) def test_setattr(self): setattr(sys, 'spam', 1) self.assertEqual(sys.spam, 1) self.assertRaises(TypeError, setattr, sys, 1, 'spam') self.assertRaises(TypeError, setattr) def test_sum(self): self.assertEqual(sum([]), 0) self.assertEqual(sum(range(2,8)), 27) self.assertEqual(sum(iter(range(2,8))), 27) self.assertEqual(sum(Squares(10)), 285) self.assertEqual(sum(iter(Squares(10))), 285) self.assertEqual(sum([[1], [2], [3]], []), [1, 2, 3]) self.assertRaises(TypeError, sum) self.assertRaises(TypeError, sum, 42) self.assertRaises(TypeError, sum, ['a', 'b', 'c']) self.assertRaises(TypeError, sum, ['a', 'b', 'c'], '') self.assertRaises(TypeError, sum, [[1], [2], [3]]) self.assertRaises(TypeError, sum, [{2:3}]) self.assertRaises(TypeError, sum, [{2:3}]*2, {2:3}) class BadSeq: def __getitem__(self, index): raise ValueError self.assertRaises(ValueError, sum, BadSeq()) def test_type(self): self.assertEqual(type(''), type('123')) self.assertNotEqual(type(''), type(())) def test_unichr(self): if have_unicode: self.assertEqual(unichr(32), unicode(' ')) self.assertEqual(unichr(65), unicode('A')) self.assertEqual(unichr(97), unicode('a')) self.assertEqual( unichr(sys.maxunicode), unicode('\\U%08x' % (sys.maxunicode), 'unicode-escape') ) self.assertRaises(ValueError, unichr, sys.maxunicode+1) self.assertRaises(TypeError, unichr) self.assertRaises((OverflowError, ValueError), unichr, 2**32) # We don't want self in vars(), so these are static methods @staticmethod def get_vars_f0(): return vars() @staticmethod def get_vars_f2(): BuiltinTest.get_vars_f0() a = 1 b = 2 return vars() def test_vars(self): self.assertEqual(set(vars()), set(dir())) import sys self.assertEqual(set(vars(sys)), set(dir(sys))) self.assertEqual(self.get_vars_f0(), {}) self.assertEqual(self.get_vars_f2(), {'a': 1, 'b': 2}) self.assertRaises(TypeError, vars, 42, 42) self.assertRaises(TypeError, vars, 42) def test_zip(self): a = (1, 2, 3) b = (4, 5, 6) t = [(1, 4), (2, 5), (3, 6)] self.assertEqual(zip(a, b), t) b = [4, 5, 6] self.assertEqual(zip(a, b), t) b = (4, 5, 6, 7) self.assertEqual(zip(a, b), t) class I: def __getitem__(self, i): if i < 0 or i > 2: raise IndexError return i + 4 self.assertEqual(zip(a, I()), t) self.assertEqual(zip(), []) self.assertEqual(zip(*[]), []) self.assertRaises(TypeError, zip, None) class G: pass self.assertRaises(TypeError, zip, a, G()) # Make sure zip doesn't try to allocate a billion elements for the # result list when one of its arguments doesn't say how long it is. # A MemoryError is the most likely failure mode. class SequenceWithoutALength: def __getitem__(self, i): if i == 5: raise IndexError else: return i self.assertEqual( zip(SequenceWithoutALength(), xrange(2**30)), list(enumerate(range(5))) ) class BadSeq: def __getitem__(self, i): if i == 5: raise ValueError else: return i self.assertRaises(ValueError, zip, BadSeq(), BadSeq()) def test_format(self): # Test the basic machinery of the format() builtin. Don't test # the specifics of the various formatters self.assertEqual(format(3, ''), '3') # Returns some classes to use for various tests. There's # an old-style version, and a new-style version def classes_new(): class A(object): def __init__(self, x): self.x = x def __format__(self, format_spec): return str(self.x) + format_spec class DerivedFromA(A): pass class Simple(object): pass class DerivedFromSimple(Simple): def __init__(self, x): self.x = x def __format__(self, format_spec): return str(self.x) + format_spec class DerivedFromSimple2(DerivedFromSimple): pass return A, DerivedFromA, DerivedFromSimple, DerivedFromSimple2 # In 3.0, classes_classic has the same meaning as classes_new def classes_classic(): class A: def __init__(self, x): self.x = x def __format__(self, format_spec): return str(self.x) + format_spec class DerivedFromA(A): pass class Simple: pass class DerivedFromSimple(Simple): def __init__(self, x): self.x = x def __format__(self, format_spec): return str(self.x) + format_spec class DerivedFromSimple2(DerivedFromSimple): pass return A, DerivedFromA, DerivedFromSimple, DerivedFromSimple2 def class_test(A, DerivedFromA, DerivedFromSimple, DerivedFromSimple2): self.assertEqual(format(A(3), 'spec'), '3spec') self.assertEqual(format(DerivedFromA(4), 'spec'), '4spec') self.assertEqual(format(DerivedFromSimple(5), 'abc'), '5abc') self.assertEqual(format(DerivedFromSimple2(10), 'abcdef'), '10abcdef') class_test(*classes_new()) class_test(*classes_classic()) def empty_format_spec(value): # test that: # format(x, '') == str(x) # format(x) == str(x) self.assertEqual(format(value, ""), str(value)) self.assertEqual(format(value), str(value)) # for builtin types, format(x, "") == str(x) empty_format_spec(17**13) empty_format_spec(1.0) empty_format_spec(3.1415e104) empty_format_spec(-3.1415e104) empty_format_spec(3.1415e-104) empty_format_spec(-3.1415e-104) empty_format_spec(object) empty_format_spec(None) # TypeError because self.__format__ returns the wrong type class BadFormatResult: def __format__(self, format_spec): return 1.0 self.assertRaises(TypeError, format, BadFormatResult(), "") # TypeError because format_spec is not unicode or str self.assertRaises(TypeError, format, object(), 4) self.assertRaises(TypeError, format, object(), object()) # tests for object.__format__ really belong elsewhere, but # there's no good place to put them x = object().__format__('') self.assert_(x.startswith('