Verifying the behavior of a software system against the expected behavior of that system.
Questions tagged [testing]
1470 questions
51
votes
11 answers
How is software used in critical life-or-death systems tested?
An airplane, as opposed to, for example, a website, is a system where any failure in certain systems is completely unacceptable, since errors in e.g. flight monitoring can cause the autopilot to malfunction and do a dive. Obviously, this doesn't…
waiwai933
- 733
45
votes
14 answers
How to get better at testing your own code
I am a relatively new software developer, and one of the things I think I should improve is my ability to test my own code. Whenever I develop a new functionality, I find it really difficult to follow all the possible paths so I can find bugs. I…
Fran Sevillano
- 1,559
35
votes
10 answers
Should developers be responsible for tests other than unit tests, if so which ones are the most common?
I am currently working on a rather large project, and I have used JUnit and EasyMock to fairly extensively unit test functionality. I am now interested in what other types of testing I should worry about. As a developer is it my responsibility to…
Jackie
- 550
24
votes
7 answers
How to get flaky tests fixed after having mitigated their flakiness
Recently, I was charged with making about 9000 Selenium tests start running in CI/CD nightly. These tests had built up over about 8 years and had up until then been run in an ad hoc way. It was important that failures in the CI/CD be genuine…
JustSomeGuy
- 539
22
votes
5 answers
Why use in-memory database for integration testing?
I'm really confused when I see a lot of in-memory database implementation used for testing, because I also heard a lot from integration testing best practices that the environment running the test should resemble as closely as possible the…
dnang
- 585
20
votes
4 answers
How to structure tests where one test is another test's setup?
I'm integration testing a system, by using only the public APIs. I have a test that looks something like this:
def testAllTheThings():
email = create_random_email()
password = create_random_password()
ok = account_signup(email, password)
…
Roger Lipscombe
- 391
- 2
- 9
17
votes
7 answers
Are testers considered low profile?
I happened to know some system admin and according to him, testing guys are not given preferences in an organization in comparison to developers. No doubt software releases are not possible without testers but I've never laid my hands on testing so…
Ayush Goyal
- 1,173
16
votes
10 answers
Black box or white box testing - which do you do first?
On a very small team, where the black box and white box testing is done by the same person, which should the tester do first?
Pillar of Salt
- 161
10
votes
8 answers
Functional testing must be done by external party to avoid bias?
Our developers demand that someone external to the development team completes the functional testing. Their argument is that they are biased and cannot test their own code as they are too close to it. Our last round of testing is with the client in…
bobbyz
9
votes
16 answers
Bugs vs. Nonexistent Features
Is it fair to refer to a feature that has not yet been coded as a "bug"?
For example, I am working on a project that involves three distinct features. If I only start one of them, is it correct to refer to the other two as bugs? Or do bugs only…
Britt Wescott
- 1,220
9
votes
1 answer
How was the first Malbolge interpreter tested?
According to Wikipedia, Malbolge was so difficult to understand when it arrived that it took two years for the first Malbolge program to appear.
If this is true, how was the first Malbolge interpreter tested (to check if it did the right thing when…
user4595
8
votes
4 answers
Do testers have to look at source code?
How necessary is it for testers to do white-box testing in addition to black-box testing? As a developer, I see value in having a QA-minded person go through my code and look for weak points, but it also seems like if a non-technical tester is…
Mr. Jefferson
- 1,361
8
votes
5 answers
Property based testing without reimplementing the code under test
Given a very simple method such as:
def squaredDistance(p1: Point, p2: Point) =
math.pow(p1.lon - p2.lon, 2.0) + math.pow(p1.lat - p2.lat, 2.0)
What are some valuable property-based tests that don't simply reimplement the method?
I can only…
Synesso
- 574
- 4
- 11
7
votes
2 answers
How Do You Test Your Software?
I'm currently working on 2 software projects:
A Social Networking Web Site for an NGO
A Patient Management System for a hospital
Although I've been programming for 5 years, I can't just say that I'm very good at testing or Test Driven Designing an…
Kubi
- 171
- 4
7
votes
1 answer
How to test calculations that are only passed down into the stack rather than returned upward
This is a problem I have been trying to wrap my head around a couple months now. It has shown up again in a learning project I was working on last night, so I will use that as an example.
I am building an entity-component system, and have a…
Godric Seer
- 173