What is the difference between Unit, Integration, Regression and Acceptance Testing?

Briefly: Unit testing – You unit test each individual piece of code. Think each file or class. Integration testing – When putting several units together that interact you need to conduct Integration testing to make sure that integrating these units together has not introduced any errors. Regression testing – after integrating (and maybe fixing) you … Read more

How do I set up a Rails Angular project to test JS?

You can use teaspoon it runs your favorite test suite (default is jasmine) and they have a wiki to integrate with angular. Teaspoon integrates with the asset pipeline, so you can throw all the angular gems in there and require them in the teaspoon generated spec_helper.js. The other cool thing is: they have a guard … Read more

What is the argument against using before, let and subject in RSpec tests? [closed]

Interesting question; something that I want to know more about as well…. So dug in a bit, and here is what I uncovered: Thoughtbot style guide dictum about let, etc. In an earlier version of the style guide, there’s more to that statement: Avoid its, let, let!, specify, subject, and other DSLs. Prefer explicitness and … Read more

Jest – Mock a constant property from a module for a specific test

File that exports a constant value that I want to mock: // utils/deviceTypeUtils file import DeviceInfo from ‘react-native-device-info’; export const isTablet = DeviceInfo.isTablet(); In my test file, I use this code to mock the constant isTablet: // file: deviceTypeUtils.spec const DeviceTypeUtilsMock = jest.requireMock(‘../utils/deviceTypeUtils’); jest.mock(‘../utils/deviceTypeUtils’, () => ({ isTablet: false, })); describe(‘mock const example’, () => … Read more

pytest assert message customization with variable introspection

you could use Python built-in capability to show custom exception message: assert response.status_code == 200, f”My custom msg: actual status code {response.status_code}” Or you can built a helper assert functions: def assert_status(response, status=200): # you can assert other status codes too assert response.status_code == status, \ f”Expected {status}. Actual status {response.status_code}. Response text {response.text}” # … Read more

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