Tagged Questions
1
vote
0answers
45 views
Testcase runner for parametrized testcases
Let me explain my situation. I'm planning a kind of test case runner for doing testcases on external devices, which are microcontroller based. Lets consider the devices:
Device 1
Device 2
There ...
2
votes
2answers
159 views
Building automated unit tests for tools which don't have an xUnit implementation
Preamble
I have been bitten by the bug of automated unit testing. I feel the benefits and the confidence in a code base it can deliver.
I am also feel I have a reasonable intuition as to what parts ...
1
vote
2answers
91 views
Mock up class object
For example I have class ItemDownloader which has method downloadItem. This method creates instance of another class - Download to perform actual downloading.
Question is: I want to test ...
9
votes
3answers
356 views
Best way to unit test methods that call other methods inside same class
I was recently discussing with some friends which of the following 2 methods is best to stub return results or calls to methods inside same class from methods inside same class.
This is a very ...
5
votes
2answers
170 views
How to do unit tests on a method that takes the elapsed time into account?
I'm currently in the middle of refactoring an important method in a legacy-system. There were almost zero test until I've started working on it, and I've added quite a lot to ensure the correct work ...
12
votes
5answers
528 views
What is considered third party code?
Inspired by this question Using third-party libraries - always use a wrapper?
I wanted to know what people actually consider as third-party libraries.
Example from PHP:
If I'm building an application ...
4
votes
1answer
275 views
Is wrapping a third party code the only solution to unit test its consumers?
I'm doing unit testing and in one of my classes I need to send a mail from one of the methods, so using constructor injection I inject an instance of Zend_Mail class which is in Zend framework.
Now ...
2
votes
2answers
183 views
Returning a mock object from a mock object
I'm trying to return an object when mocking a parser class. This is the test code using PHPUnit 3.7
//set up the result object that I want to be returned from the call to parse method
...
4
votes
4answers
144 views
How to implement isValid correctly?
I'm trying to provide a mechanism for validating my object like this:
class SomeObject {
private $_inputString;
private $_errors=array();
public function __construct($inputString) {
...
3
votes
5answers
483 views
“TDD is about design, not verification”; concretely, what does that mean?
I've been wondering about this. What do we exactly mean by design and verification.
Should I just apply TDD to make sure my code is SOLID and not check if it's external behaviour is correct?
Should ...
13
votes
4answers
722 views
TDD - Outside In vs Inside Out
What is the difference between building an application Outside In vs building it Inside Out using TDD?
These are the books I read about TDD and unit testing:
Test Driven Development: By Example
...
9
votes
4answers
413 views
How to unit test a function that is refactored to strategy pattern?
If I have a function in my code that goes like:
class Employee{
public string calculateTax(string name, int salary)
{
switch (name)
{
case "Chris":
...
1
vote
2answers
54 views
Should Multiple Data Items be in Multi Unit Test Methods?
I often want to have the same unit test applied to data multiple items that are roughly equivalent (two non-empty strings). Currently I implement these in multiple unit test methods, with names like ...
6
votes
7answers
747 views
Can the Strategy pattern be implemented without significant branching?
The Strategy pattern works well to avoid huge if...else constructs and make it easier to add or replace functionality. However, it still leaves one flaw in my opinion. It seems like in every ...
0
votes
1answer
965 views
Implementing a ILogger interface to log data
I have a need to write data to file in one of my classes.
Obviously I will pass an interface into my class to decouple it.
I was thinking this interface will be used for testing and also in other ...
