Questions tagged [test-coverage]

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1answer
136 views

Verification for value of test standards

We are currently developing a concept for our tests standards. Up until now, we don't have standards. All we do is to tell the developer to write tests. Now we have the following basic idea: We will ...
3
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1answer
10k views

Condition coverage for If(A && B) - measuring the input or code exercised?

I have been studying condition coverage for last few days. In a book "The Art of Software Testing" they highlight that it does not assure decision coverage, because for example IF(A && B) ...
0
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1answer
176 views

What the white box testers create test cases against?

I'm wondering, what are the white box testers using to create test cases? The actual code? Some kind of diagrams? I mean, if I am given a task to create test cases for complete branch coverage, is it ...
7
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5answers
11k views

Is path coverage stronger than condition coverage?

I have encountered (even in literature) two contradicting opinions related to path vs condition coverage (not branch or edge!). Some say Path coverage is stronger than the condition coverage, some say ...
15
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2answers
1k views

How do I know if I have enough unit test coverage to remove an integration test?

I'm working on a legacy system (by that I mean it was written without tests). We've tried to test some of the system by writing integration tests that test functionality from the outside. This ...
4
votes
3answers
681 views

Is unconditional code considered a branch?

Having simple code like this: int A=5; object X=Console.ReadLine() if(Condition) DoSomething(); else DoStuff(); DoSomethingElse(); Some sources say there are actually 4 branches: First ...
7
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4answers
30k views

Branch vs decision coverage question

ISTQB does not distinct between these (it reads "Branch/decision coverage") but some sources do say it is different. I would have two question. The essential one is about the difference. And the other ...
3
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2answers
810 views

Unit test and Code Coverage of Ant build scripts

In our development environment We have more and more build scripts for ant to perform the build tasks for several different build jobs. These build scripts sometimes become large and do a lot of ...
13
votes
3answers
10k views

How would you test Google Maps “Get Directions” feature?

(I imagine this would be a good interview question, but in my case it's more pragmatic than that.) We have a large & complex application that models an extremely long and sophisticated chemical ...
5
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2answers
5k views

How do you handle measuring Code Coverage in JavaScript

In order to measure Code Coverage for JavaScript unit tests, one needs to instrument the code, run the tests and then perform post-processing. My concern is that, as a result, you are unit testing ...
22
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5answers
13k views

How to drastically improve code coverage?

I'm tasked with getting a legacy application under unit test. First some background about the application: It's a 600k LOC Java RCP code base with these major problems massive code duplication no ...
15
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5answers
4k views

How can I design test cases to cover code based on random events?

For example, if the code generates a random int from 0-10, and takes a different branch on each outcome, how can one design a test suite to guarantee 100% statement coverage in such code? In Java, ...
5
votes
4answers
618 views

Is it realistic to ask your team to take on a 100% automated test coverage goal as a stretch task?

In a financial services environment - is it realistic to ask your team of ten programmers to take on a 100% automated unit and integration test coverage goal as a stretch task for a legacy java system ...
0
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1answer
56 views

How do you define a node and an edge when talking about McCabes Complexity?

I am trying to understand the formula, but I am a bit in doubt how exactly you define edges and nodes. Edges seem to be every possible exit from a statement and nodes seem to be statements, is this ...
1
vote
1answer
717 views

How to get good scenario coverage in performance benchmarks?

If it is relatively easy to get good code coverage from profiling (because profiling tells you which functions are/aren't called, how many times, and with what parameters), how do I get good ...
14
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4answers
1k views

Unit testing internal components

To what extent do you unit test internal/private components of a class/module/package/etc? Do you test them at all or do you just test the interface to the outside world? An example of these internal ...
4
votes
4answers
631 views

Reasonable test coverage requirements when dealing with a contractor?

We're outsourcing some work to an external developer, so I'm busy writing up a contract about what constitutes a deliverable. So far I require that the code is shipped with automated tests. But, ...
130
votes
7answers
46k views

What should you test with unit tests?

I'm freshly out of college, and starting university somewhere next week. We've seen unit tests, but we kinda not used them much; and everyone talks about them, so I figured maybe I should do some. ...
21
votes
7answers
3k views

Is test coverage an adequate measure of code quality?

If I have some code that has 80% test coverage (all tests pass), is it fair to say that it's of higher quality than code with no test coverage? Or is it fair to say it's more maintainable?

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