11
votes
Accepted
Should integration tests test business logic?
No if it can be done in Unit tests
The answer however is not a yes / no as this is not really a binary choice.
When possible use Unit tests. If you are testing 'based on this information from this ...
- 25.2k
10
votes
Accepted
How to test if my application method handles HTTP status 404 of a REST API without actually calling that REST API
Use a mock.
Mock 3rd party API using MockServer or WireMock, if you're in the Java world.
Your test will call getNumUsers() method
which in turn will call mock of your 3rd API
and the mock will ...
- 10.5k
9
votes
Accepted
Tests in CI: Are API + Integration Tests the most suitable?
As already mentioned in your TechBeacon article, teams indeed often spend too much at the top of the test automation pyramid. In general, the pyramid is a good rule of thumb, but (as always) it ...
- 2,142
8
votes
Accepted
How can I use humor to explain integrated testing?
Here are some fun examples:
Videos:
Doors - https://youtu.be/VPSE13NLPnM
Sink - https://youtu.be/RMYRTJuY8Ss
Dryer - https://youtu.be/ajUB4-m-y2o
Door Lock - https://www.youtube.com/watch?v=...
- 25.2k
7
votes
What is the difference between big bang and top down approach in Integration testing?
In a nutshell,
Big bang testing involves real software components after each component has been finished; all of the components have never been tested before.
Top down testing involves lower level ...
- 9,942
7
votes
Accepted
What's the difference between integration and contract testing of microservices?
Martin Fowler has a good article just about that
Quoting him:
Integration tests collect modules together and test them as a subsystem in order to verify that they collaborate as intended to achieve ...
- 7,089
6
votes
Tests in CI: Are API + Integration Tests the most suitable?
Use the test pyramid as mentioned by Peter Masiar.
My contribution here is help answer the question of exactly how to decide the 20% and 80% figures that Peter mentions.
My approach to this is to ...
- 25.2k
6
votes
How to test if my application method handles HTTP status 404 of a REST API without actually calling that REST API
You don't need to add any additional dependency.
Start doing some preparatory refactoring in order to:
Program to an interface instead of a concrete object;
Break the getNumUsers() into two ...
- 11k
6
votes
Accepted
Writing Integration Tests programmatically vs using Postman for REST APIs
In overall it looks more a question regarding the code-based vs tool-based testing.
And for the low-level, technology facing tests, such as integration tests, the code-based approach would give you:
...
6
votes
Should integration tests test business logic?
I think you fell on the Integrated Tests scam.
Integration tests are about "determining if independently developed units of software work correctly when they are connected to each other".
...
- 11k
6
votes
Measuring integration test efficiency
We thought of some sort of limited coverage measurement - checking if
collaboration points like app to database, app to external service are
covered by tests.
Most code coverage tools allow filtering ...
- 11k
6
votes
Accepted
Integration tests fail due to external components... but code needs to be merged to main
I don't think it's appropriate for your build pipeline to rely on an external service that could gate your ability to build and deploy changes.
Let's take an extreme example. Your CI/CD pipeline gates ...
- 1,581
5
votes
Accepted
Difference between Integration Testing and Continuous Integration Testing
Integration Testing
Integration testing is about taking the units of code developed with unit testing and combine them together into the desired system. It (can) also mean testing software by ...
- 25.2k
5
votes
Tests in CI: Are API + Integration Tests the most suitable?
Consider test pyramid. Using Pareto principle (also known as 80/20 rule), you can get 80% of benefits from testing by focusing on unit test with 20% of the effort. And 80% benefit of the remainder if ...
5
votes
Who is typically responsible for integration testing?
The one and only correct answer to this question do not exist. It depends on many factors. It depends on the software development life cycle model, on the team and developer to tester ratio and so on. ...
- 469
5
votes
Accepted
Code coverage for Integration tests
Some relevant guidelines:
The goal is confidence, not coverage. If you have good coverage with well-written unit tests then a tiny number of high-level tests can be enough to have confidence that the ...
- 468
4
votes
Accepted
Seriously struggling to understand "integration" testing
Let's start from your initial mandate. "Automated testing" can be a pretty vast land to explore. Leave the unit tests as they are for now and focus on the doubts you are having for integration tests. ...
- 164
4
votes
Seriously struggling to understand "integration" testing
Some people distinguish between
integration (some parts are used for real, some are mocked) and
system/end-to-end testing (where is no mocking at all).
For other people, system, integration , and ...
4
votes
Writing Integration Tests programmatically vs using Postman for REST APIs
I used to write integration tests in Postman and after a couple of tens of requests, it became very difficult to maintain. Mostly because:
accessing other resources like a DB was hard
it was hard to ...
- 4,548
3
votes
Accepted
What does Automated Integration Testing look like?
The traditional test levels (unit/integration/system/… testing) usually do not make a statement about how the technical implementation takes place. Choosing a proper test interface is almost always a ...
- 2,142
3
votes
Difference between Integration Testing and Continuous Integration Testing
In a nutshell:
Continuous integration (CI): continuously integrate (small) software changes.
Continuous delivery (CD): continuously deliver these changes.
Continuous testing (CT): continuously test ...
- 2,142
3
votes
Is it a good practice to run functional tests with coverage?
First of all, coverage isn't coverage. There're several coverage criteria, but most used are:
Function coverage – Has each function (or subroutine) in the program been called?
Statement ...
- 2,142
3
votes
How to automate multiple selenium test cases where one test case is dependent with another test case?
You can try someting like,
Option 1
Open browser.
Open Base URL.
Scenario 1
Go to Login page.
Enter the username and password.
Login. Lands on the Home Page/Dashboard/Whatever.
Scenario 2
...
- 7,758
3
votes
What is the difference between big bang and top down approach in Integration testing?
In Bigbang Approach, the entire project or system is completed, and the testing is done on the entire system.
In Top Down approach, the developers develop higher level components first. To test ...
- 885
3
votes
Assertion on static value or calculated one
I would consider the whole idea of verifying such logic from the UI perspective as a bad practice. See info on test pyramid.
If you need to test the calculation logic of your service - you can do ...
3
votes
How is compatibility of business logic tested in microservices?
By the book, microservices business logic are independent from each other - built around business capabilities. This is achieved by defining bounded contexts (check it here, here, and here).
It means ...
- 11k
3
votes
Measuring integration test efficiency
Can you detail why you need those metrics? It sounds like you just want to have metrics - but do you have any plan with them afterwards?
Personally, I'd first focus on getting the integration tests on ...
- 5,894
3
votes
Accepted
Unit testing for a non-atomic function if all atomic components have been tested
Unit tests are about checking the public API of a function.
In the function below, what matters is input and output. The rest are details that should be mostly hidden in your tests.
def non-atomic(...
- 11k
2
votes
Testing Different User Setting's Effects On a Page
I would have 4 types of tests:
unauthenticated functionality
authentication ('login') tests for happy and sad paths
tests for content for user type 1 (admin?)
tests for content for user type 2 (...
- 25.2k
Only top scored, non community-wiki answers of a minimum length are eligible