Why is assert_called_with failing to pass?

python mock class method
python mock assert not called
python mock property
python mock matchers
python mock test
python mock call count
python mock assert_called_with object

I am having a lot of difficulty setting my unit test. I have been using patch but it is not behaving entirely as expected.

I have a decorator at the top of my test function: @mock.patch('WarningFactory.WarningAPIUpdate') @mock.patch('WarningFactory.SomethingElse') def test_send_tc_update(self, other_mock, api_mock):

However when at the end of my function when I try to make the following assertion:

api_mock.send_warning.assert_called_with('IDQ20026', 'IDQ20026')

It fails

I know that is should pass because I run

print api_mock.mock_calls


[call(u'test_api'), call().send_warning('IDQ20026', 'IDQ20026'), call().send_warning('IDQ24500', 'IDQ24500')]

I can clearly see the send_warning method being called with the correct values, so why is my assertion failing?

mock.assert_called_once_with() fails when asserting against a , The test passes But, the test does not pass, and instead gives the following error: AssertionError: Expected call: function1({1: 'a'}) Actual call:� 5 Why is assert_called_with failing to pass? View more network posts → Top tags (6) riddle. Score 5. Posts 1. Posts % 25. homonym. Score 5. Posts 1. word. Score 5.

If user3559247's answer does not work, it may be that you're trying to mock nested objects and you will need to read about chaining mock calls. In my case, I wanted to test this code in a hypothetical class MyAzureBatchClient that leverages the Azure Python SDK:

def node_counts():
  self.batch_client = azure.batch.batch_service_client.BatchServiceClient(...)

Calling mocked_batch_client.account.list_pool_node_counts.assert_called_with() failed, although checking the mock_calls property would showed something similar to you:


However when properly chaining with mocked_batch_client.return_value.account.list_pool_node_counts.assert_called_with() it works as expected. When checking mocked_batch_client.return_value.account.mock_calls, note how call.method is present instead of call().method: [call.list_pool_node_counts()]

unittest.mock — mock object library — Python 3.8.5 documentation, This ensures that your mocks will fail in the same way as your production code if If you pass in an object then a list of strings is formed by calling dir on the The assert passes if the mock has ever been called, unlike assert_called_with() and� To use assert_called_with() we would need to pass in the exact same object. If we are only interested in some of the attributes of this object then we can create a matcher that will check these attributes for us. You can see in this example how a ‘standard’ call to assert_called_with isn’t sufficient: >>>

Based on the print output you mentioned the syntax should probably be:

api_mock.return_value.send_warning.assert_called_with('IDQ20026', 'IDQ20026')

Notice the call().send_warning('IDQ20026', 'IDQ20026') prefix, which correlates to .return_value.

But why work so hard? I wrote a helper library to automatically generate the asserts for me.

Just add those lines to print the correct asserts for your case:

import mock_autogen.generator

unittest.mock — getting started — Python 3.8.5 documentation, So to test it we need to pass in an object with a close method and check that it it in the test will create it, but assert_called_with() will raise a failure exception. 0 Why is assert_called_with failing to pass? Feb 16 '19. Badges (7) Gold

Python Examples of unittest.mock.assert_called_with, This page shows Python examples of unittest.mock.assert_called_with. pass else: self.fail('java exception not raised') mock.assert_called_with(1,2, fish=3). Let's use some of the above-mentioned methods in an example. Create a java class file named TestAssertions.java in C:\>JUNIT_WORKSPACE.. import org.junit.Test; import static org.junit.Assert.*; public class TestAssertions { @Test public void testAssertions() { //test data String str1 = new String ("abc"); String str2 = new String ("abc"); String str3 = null; String str4 = "abc"; String str5

26.6. unittest.mock — getting started — Python 3.7.0a2 documentation, So to test it we need to pass in an object with a close method and check that it it in the test will create it, but assert_called_with() will raise a failure exception. Teams. Q&A for Work. Stack Overflow for Teams is a private, secure spot for you and your coworkers to find and share information.

unittest.mock — Sherpa 4.9.1+265.g57491d8b documentation, __kwdefaults__ except AttributeError: pass def _callable(obj): if return def assert_called_with(*args, **kwargs): return mock.assert_called_with(*args, ** kwargs) fail early? return obj class CallableMixin(Base): def __init__(self, spec =None,� return explanation for comparisons in failing assert expressions. Return None for no custom explanation, otherwise return a list of strings. The strings will be joined by newlines but any newlines in a string will be escaped. Note that all but the first line will be indented slightly, the intention is for the first line to be a summary.

  • Did you ever figure this one out? Having the same issue
  • @learningKnight Added an answer, hope that helps.
  • Didn't help me, but kudos to you for coming back regardless