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How to use compute_hash method in autotest

Best Python code snippet using autotest_python

test_objectmodel.py

Source:test_objectmodel.py

...117    s1 = Symbolic()118    s2 = Symbolic()119    py.test.raises(TypeError, "s1 < s2")120    py.test.raises(TypeError, "hash(s1)")121def test_compute_hash():122    from pypy.rlib.objectmodel import _hash_string, _hash_float, _hash_tuple123    assert compute_hash("Hello") == _hash_string("Hello")124    assert compute_hash(7) == 7125    assert compute_hash(-3.5) == _hash_float(-3.5)126    assert compute_hash(None) == 0127    assert compute_hash(("world", None, 7)) == _hash_tuple(("world", None, 7))128    #129    class Foo(object):130        def __hash__(self):131            return 42132    foo = Foo()133    h = compute_hash(foo)134    assert h == object.__hash__(foo)135    assert h == getattr(foo, '__precomputed_identity_hash')136    assert compute_hash(None) == 0137def test_compute_hash_float():138    from pypy.rlib.rarithmetic import INFINITY, NAN139    assert compute_hash(INFINITY) == 314159140    assert compute_hash(-INFINITY) == -271828141    assert compute_hash(NAN) == 0142def test_compute_identity_hash():143    class Foo(object):144        def __hash__(self):145            return 42146    foo = Foo()147    h = compute_identity_hash(foo)148    assert h == object.__hash__(foo)149    assert h == getattr(foo, '__precomputed_identity_hash')150def test_compute_unique_id():151    class Foo(object):152        pass153    foo = Foo()154    assert compute_unique_id(foo) == id(foo)155def test_current_object_addr_as_int():156    from pypy.rlib.rarithmetic import intmask157    class Foo(object):158        pass159    foo = Foo()160    assert current_object_addr_as_int(foo) == intmask(id(foo))161class BaseTestObjectModel(BaseRtypingTest):162    def test_we_are_translated(self):163        assert we_are_translated() == False164        def fn():165            return we_are_translated()166        res = self.interpret(fn, [])167        assert res is True168    169    def test_rtype_r_dict(self):170        res = self.interpret(test_r_dict, [])171        assert res is True172    def test_rtype_r_dict_bm(self):173        res = self.interpret(test_r_dict_bm, [])174        assert res is True175    def test_rtype_constant_r_dicts(self):176        d1 = r_dict(strange_key_eq, strange_key_hash)177        d1['hello'] = 666178        d2 = r_dict(strange_key_eq, strange_key_hash)179        d2['hello'] = 777180        d2['world'] = 888181        def fn(i):182            if i == 1:183                d = d1184            else:185                d = d2186            return len(d)187        res = self.interpret(fn, [1])188        assert res == 1189        res = self.interpret(fn, [2])190        assert res == 2191    def test_rtype_r_dict_singlefrozen_func(self):192        class FreezingClass(Strange):193            def _freeze_(self):194                return True195        obj = FreezingClass()196        def fn():197            d = r_dict(obj.key_eq, obj.key_hash)198            return play_with_r_dict(d)199        assert self.interpret(fn, []) is True200    def test_rtype_r_dict_singlefrozen_func_pbc(self):201        class FreezingClass(Strange):202            def _freeze_(self):203                return True204        obj = FreezingClass()205        pbc_d = r_dict(obj.key_eq, obj.key_hash)        206        def fn():207            return play_with_r_dict(pbc_d)208        assert self.interpret(fn, []) is True209    def test_rtype_r_dict_exceptions(self):210        def raising_hash(obj):211            if obj.startswith("bla"):212                raise TypeError213            return 1214        def eq(obj1, obj2):215            return obj1 is obj2216        def f():217            d1 = r_dict(eq, raising_hash)218            d1['xxx'] = 1219            try:220                x = d1["blabla"]221            except Exception:222                return 42223            return x224        res = self.interpret(f, [])225        assert res == 42226        def f():227            d1 = r_dict(eq, raising_hash)228            d1['xxx'] = 1229            try:230                x = d1["blabla"]231            except TypeError:232                return 42233            return x234        res = self.interpret(f, [])235        assert res == 42236        def f():237            d1 = r_dict(eq, raising_hash)238            d1['xxx'] = 1239            try:240                d1["blabla"] = 2241            except TypeError:242                return 42243            return 0244        res = self.interpret(f, [])245        assert res == 42246    def test_access_in_try(self):247        h = lambda x: 1248        eq = lambda x,y: x==y249        def f(d):250            try:251                return d[2]252            except ZeroDivisionError:253                return 42254            return -1255        def g(n):256            d = r_dict(eq, h)257            d[1] = n258            d[2] = 2*n259            return f(d)260        res = self.interpret(g, [3])261        assert res == 6262    def test_access_in_try_set(self):263        h = lambda x: 1264        eq = lambda x,y: x==y265        def f(d):266            try:267                d[2] = 77268            except ZeroDivisionError:269                return 42270            return -1271        def g(n):272            d = r_dict(eq, h)273            d[1] = n274            f(d)275            return d[2]276        res = self.interpret(g, [3])277        assert res == 77278    def test_compute_hash(self):279        class Foo(object):280            pass281        def f(i):282            assert compute_hash(i) == compute_hash(42)283            assert compute_hash(i+1.0) == compute_hash(43.0)284            assert compute_hash("Hello" + str(i)) == compute_hash("Hello42")285            if i == 42:286                p = None287            else:288                p = Foo()289            assert compute_hash(p) == compute_hash(None)290            assert (compute_hash(("world", None, i, 7.5)) ==291                    compute_hash(("world", None, 42, 7.5)))292            q = Foo()293            assert compute_hash(q) == compute_identity_hash(q)294            from pypy.rlib.rarithmetic import INFINITY, NAN295            assert compute_hash(INFINITY) == 314159296            assert compute_hash(-INFINITY) == -271828297            assert compute_hash(NAN) == 0298            return i*2299        res = self.interpret(f, [42])300        assert res == 84301class TestLLtype(BaseTestObjectModel, LLRtypeMixin):302    def test_rtype_keepalive(self):303        from pypy.rlib import objectmodel304        def f():305            x = [1]306            y = ['b']307            objectmodel.keepalive_until_here(x,y)308            return 1309        res = self.interpret(f, [])310        assert res == 1311    def test_compute_hash_across_translation(self):312        class Foo(object):313            pass314        q = Foo()315        def f(i):316            assert compute_hash(None) == 0317            assert compute_hash(i) == h_42318            assert compute_hash(i+1.0) == h_43_dot_0319            assert compute_hash((i+3)/6.0) == h_7_dot_5320            assert compute_hash("Hello" + str(i)) == h_Hello42321            if i == 42:322                p = None323            else:324                p = Foo()325            assert compute_hash(p) == h_None326            assert compute_hash(("world", None, i, 7.5)) == h_tuple327            assert compute_hash(q) == h_q328            return i*2329        h_42       = compute_hash(42)330        h_43_dot_0 = compute_hash(43.0)331        h_7_dot_5  = compute_hash(7.5)332        h_Hello42  = compute_hash("Hello42")333        h_None     = compute_hash(None)334        h_tuple    = compute_hash(("world", None, 42, 7.5))335        h_q        = compute_hash(q)336        337        res = self.interpret(f, [42])338        assert res == 84339class TestOOtype(BaseTestObjectModel, OORtypeMixin):340    pass341def test_specialize_decorator():342    def f():343        pass344    specialize.memo()(f)345    346    assert f._annspecialcase_ == 'specialize:memo'347    specialize.arg(0)(f)348    assert f._annspecialcase_ == 'specialize:arg(0)'349    specialize.arg(1)(f)...

b_engine.py

Source:b_engine.py

...7        self.crop_info = crop_info8        self.timestamp = timestamp9        self.previous_hash = previous_hash10        self.nonce = nonce11    def compute_hash(self):12        block_string = json.dumps(self.__dict__, sort_keys=True)13        return sha256(block_string.encode()).hexdigest()14        #json.dumps() takes an object and produces a string15        #self.__dict__ has all the object attributes16        #encode converts json formatted string to a UTF-8 string readable by hashlib17        #hashlibâs output is a byte hash - hexdigest converts from bytes to hex18class Blockchain:19    difficulty = 220    def __init__(self):21        self.unconfirmed_crop_info = []22        self.chain = []23    def create_genesis_block(self):24        genesis_block = Block(0, [], time.time(), "0")25        genesis_block.hash = genesis_block.compute_hash()26        self.chain.append(genesis_block)27        # print(genesis_block)28    @property29    def last_block(self):30        return self.chain[-1]31    def add_block(self, block, proof):32        previous_hash = self.last_block.hash33        if previous_hash != block.previous_hash:34            return False35        if not Blockchain.is_valid_proof(block, proof):36            return False37        block.hash = proof38        self.chain.append(block)39        print(self.chain)40        print("Entered add_block and appended this new block to the blockchain")41        return True42    def proof_of_work(self, block):43        block.nonce = 044        print("Entered POW and calculated compute hash for the new block")45        compute_hash = block.compute_hash()46        while not compute_hash.startswith('0' * Blockchain.difficulty):47            block.nonce += 148            compute_hash = block.compute_hash()49        return compute_hash50    def add_new_crop_info(self, crop_info):51        print("Entered add_new_crop and appended crop details")52        self.unconfirmed_crop_info.append(crop_info)53    @classmethod54    def is_valid_proof(cls, block, block_hash):55        if block_hash.startswith('0' * Blockchain.difficulty) and block_hash == block.compute_hash():56            return True57    #@classmethod58    #def check_chain_validity59    def mine(self):60        print("Entered mine function...")61        if not self.unconfirmed_crop_info:62            return False63        last_block = self.last_block64        new_block = Block(index = last_block.index + 1,65                          crop_info = self.unconfirmed_crop_info,66                          timestamp= time.time(),67                          previous_hash = last_block.hash)68        print("Created a Block...")69        proof = self.proof_of_work(new_block) #POW returns computed hash...

public_interfaces_test.py

Source:public_interfaces_test.py

...23hashes: Dict[Callable[..., Any], str] = {}24@pytest.mark.parametrize("interface,expected_hash", list(hashes.items()))25def test_public_interfaces(interface, expected_hash):26    """Test that public interfaces have not been accidentally changed."""27    current_hash = compute_hash(interface)28    assert current_hash == expected_hash, get_warning_message(interface, current_hash)29def test_func_hash():30    """Test that changing a function signature changes its hash."""31    def some_function(a, b):32        return a + b33    original_hash = compute_hash(some_function)34    # pylint: disable=function-redefined35    def some_function(a, b, c):36        return a + b + c37    assert original_hash != compute_hash(some_function)38def test_class_hash():39    """Test that changing a class changes its hash."""40    # pylint: disable=too-few-public-methods, invalid-name41    class SomeClass:42        def __init__(self, a, b):43            self.a = a44            self.b = b45        def add(self):46            return self.a + self.b47    original_hash = compute_hash(SomeClass)48    # changing the __init__ should change the hash49    # pylint: disable=function-redefined, too-few-public-methods, invalid-name50    class SomeClass:51        def __init__(self, a, b, c):52            self.a = a53            self.b = b54            self.c = c55        def add(self):56            return self.a + self.b57    assert original_hash != compute_hash(SomeClass)58    # renaming a public method should change the hash59    # pylint: disable=function-redefined, too-few-public-methods, invalid-name60    class SomeClass:61        def __init__(self, a, b):62            self.a = a63            self.b = b64        def sum(self):65            return self.a + self.b66    assert original_hash != compute_hash(SomeClass)67    # adding a private method should not change the hash68    # pylint: disable=function-redefined, too-few-public-methods, invalid-name69    class SomeClass:70        def __init__(self, a, b):71            self.a = a72            self.b = b73        def add(self):74            return self._sum()75        def _sum(self):76            return self.a + self.b...

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