KaneAI - World’s First E2E Software Testing Agent.Book a Demo Join TestMu Conference

How to use delattr method in pytest-django

Best Python code snippet using pytest-django_python

class_delattr_setattr.py

Source:class_delattr_setattr.py

1# test __delattr__ and __setattr__2# feature test for __setattr__/__delattr__3try:4    class Test():5        def __delattr__(self, attr): pass6    del Test().noexist7except AttributeError:8    print('SKIP')9    raise SystemExit10# this class just prints the calls to see if they were executed11class A():12    def __getattr__(self, attr):13        print('get', attr)14        return 115    def __setattr__(self, attr, val):16        print('set', attr, val)17    def __delattr__(self, attr):18        print('del', attr)19a = A()20# check basic behaviour21print(getattr(a, 'foo'))22setattr(a, 'bar', 2)23delattr(a, 'baz')24# check meta behaviour25getattr(a, '__getattr__') # should not call A.__getattr__26getattr(a, '__setattr__') # should not call A.__getattr__27getattr(a, '__delattr__') # should not call A.__getattr__28setattr(a, '__setattr__', 1) # should call A.__setattr__29delattr(a, '__delattr__') # should call A.__delattr__30# this class acts like a dictionary31class B:32    def __init__(self, d):33        # store the dict in the class, not instance, so34        # we don't get infinite recursion in __getattr_35        B.d = d36    def __getattr__(self, attr):37        if attr in B.d:38            return B.d[attr]39        else:40            raise AttributeError(attr)41    def __setattr__(self, attr, value):42        B.d[attr] = value43    def __delattr__(self, attr):44        del B.d[attr]45a = B({"a":1, "b":2})46print(a.a, a.b)47a.a = 348print(a.a, a.b)49del a.a50try:51    print(a.a)52except AttributeError:53    print("AttributeError")54# test object.__setattr__55class C:56    def __init__(self):57        pass58    def __setattr__(self, attr, value):59        print(attr, "=", value)60    def __delattr__(self, attr):61        print("del", attr)62c = C()63c.a = 564try:65    print(c.a)66except AttributeError:67    print("AttributeError")68object.__setattr__(c, "a", 5)69super(C, c).__setattr__("b", 6)70print(c.a)71print(c.b)72try:73    # attribute name must be string74    object.__setattr__(c, 5, 5)75except TypeError:76    print("TypeError")77# test object.__delattr__78del c.a79print(c.a)80object.__delattr__(c, "a")81try:82    print(c.a)83except AttributeError:84    print("AttributeError")85super(C, c).__delattr__("b")86try:87    print(c.b)88except AttributeError:89    print("AttributeError")90try:91    object.__delattr__(c, "c")92except AttributeError:...

Automation Testing Tutorials

Learn to execute automation testing from scratch with LambdaTest Learning Hub. Right from setting up the prerequisites to run your first automation test, to following best practices and diving deeper into advanced test scenarios. LambdaTest Learning Hubs compile a list of step-by-step guides to help you be proficient with different test automation frameworks i.e. Selenium, Cypress, TestNG etc.