Questions tagged [unit-testing]

Unit testing is a method by which individual units of source code are tested to determine if they are fit for use.

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Table driven tests in Python using pytest

I'd like to have a standard test template to copy from when solving coding puzzles. Typically, I would need to write multiple test functions to check if my function is working as expected. However, it'...
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2 votes
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Newspaper Bill Calculator CLI with Python (1 of 3, Core)

Code is posted after explanation. Due to the size of the project, this is being posted in three separate posts. This also ensures each post is more focused. Post 2 of 3, CLI: Newspaper Bill ...
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Skeleton unit test for leetcode coding problems

I tried to initiate myself with unit testing the simplest way I can. What do you think of this way to begin with? Is it a clean way to proceed? Are there any major caveats to avoid? NB: Since I want ...
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A refactored payment service, handling several payment schemes

I was asked to refactor a class, to make it adhere to SOLID principles, with testability and readability. I thought I had done a decent job, only my feedback was: a) Unnecessary introduction of ...
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Unit tests for a 2D Vector class

I'm writing a vector class for 2D geometry applications, and below is a rough draft for a unit test using Cpputest. I'm familiar with unit tests, but this is the first I've done for a purely ...
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SpecFlow/gherkin code for creating customers

I am new to BDD/Specflow and was wondering if I could get some feedback on my definitions Here is what I have for a simple customer creation feature/command: ...
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1 answer
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Basic Ticket booking code with Unit tests

I am going to run a session for a few other developers who are new to Junit, mocking, etc. I have designed a very simple application with classes and tests to demonstrate how to do unit testing. ...
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Testsuite for implementation of the command pattern

I've attempted to introduce the command pattern for my use-cases. I would like some feedback on my Test suite. I've tried to delegate as much responsibility to other classes/functions so the primary ...
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First time writing tests (Service Layer)

Service class: ...
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Six different, concise (and hopefuly readable), sorting algorithms using ES6+ idioms, with some basic unit testing

I'm practicing js, unit testing, and algorithms, so implementing some of the common sorting algorithms and doing some basic unit testing on them seemed like a good exercise. I'm also trying to use ...
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Unit tests coverage of functools extension library

A few days ago I requested a review of my functools extension library. Since I did not have any unit tests for it, I started writing some for the revised version of this library. I'd like some ...
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2 votes
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Operator overloading in Image class implementation in C++

This is a follow-up question for Dictionary based non-local mean implementation in C++. There are some issues about operators (operator+ and ...
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Sanitize object to only include specific properties

Object Property Sanitization I'm learning to code servers using JavaScript, Node, and Express. While writing controllers that create new entries in the database, the need to sanitize the user input ...
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Optimize Tests in Rails6 - Minitest - Factory

I finally got this working but I am concerned I am being 'too' specific in my tests, and also that I am repeating myself a significant amount. I could also combine all of the failures into a single ...
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2 answers
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Binary search with self-test

Here is an implementation of binary search. Please give feedback on any part but a few specific areas I was wondering about. Is size_t used appropriately or should ...
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1 answer
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RSpec: Compound Expectations

It's an exercise from a RSpec-course, which I'm currently doing. Task: Create a compound expectation, which asserts the string sportscar starts with the substring "sports" and ends with the ...
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Functional tests of downloadpdf, a python CLI app

Shared below is a functionality test. I would love to get some review from the community. Thank you. The idea of the system is a simple CLI application which can be used to download PDF from a given ...
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A simple Java integer integer hash set - follow-up 2

(See the previous version.) Now I have this: com.github.coderodde.util.IntHashSet: ...
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A simple Java integer hash set - follow-up

(See the previous version.) (See the next version.) After incorporating changes in the previous post, I came up with this implementation. However, I left hashing as it is. ...
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A simple Java integer hash set

(See the next version.) The following data structure implements a hash table based set for int values: ...
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5 votes
2 answers
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Hungarian algorithm for optimal assignment

The assignment problem is about assigning tasks to workers, where each pair (worker, task) has a cost. The Hungarian algorithm builds an optimal solution for this problem. It has two variants, ...
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Faster, indexed, heuristic doubly-linked list data structure in Java: unit tests

Here I have the unit tests for the indexed doubly-linked list. It goes like this: ...
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1 vote
1 answer
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Unit Tests for the operators of image template class with Boost.Test framework in C++

This is a follow-up question for Tests for the operators of image template class in C++. As G. Sliepen's answer mentioned, I am attempting to use Boost.Test and several test cases are created with <...
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2 votes
1 answer
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Conway's Game of Life in a C# class. Is this sensibly factored and well tested?

I'm learning C# and have written the below class to encapsulate the game state of Conway's Game of Life and its update methods. I'm also learning about implementing light automated unit tests for ...
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3 votes
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Rigorously checking whether 2 floating point numbers are close in VBA

latest updated version in cross-post from SO I'm testing performance regression of some code I wrote (this is not that code) by timing its execution in Unit tests. I would like to see if execution ...
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1 answer
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How to make the initialization of the mocks more readable?

In an Arduino project, I'm using some code which is a slightly modified version of a public library. I made several modifications to it: I performed some minor changes I needed to make the code work. ...
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Unit tests for individual methods of a calculator

Recently I needed to expand the exports in a file to all methods in order to allow for Jest tests to cover more of the code (without using Rewire). Beforehand, only the functions used by other ...
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3 votes
1 answer
520 views

Testing DAO Delete User

I have several Dao classes, including a UserDao, below. The DAOs have many methods, but I'm focussing on deleteUser: ...
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1 answer
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Unit tests for User class with JUnit 5

This is a follow-up question for Android app class serialization. Some problems have been mentioned in forsvarir's answer. Then, I am following JUnit 5 User Guide to redesign the test cases for ...
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5 votes
1 answer
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Create a full automation test suite using a mock file

As part of the hiring process (QA position), I received as a homework assignment (which involves independent study) the following task: Create a full automation test suite (in Python3), so that when ...
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2 votes
1 answer
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Android app class serialization

I am attempting to build an Android APP with the custom serializable class User. The public method Save is to save class ...
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3 votes
4 answers
93 views

Move an unaligned bit-addressed range into another bitmap

Context I have an array of maximum-fixed-size, size, containers of items; these items are either pointers to objects or an index of the same array, (but no loops.) ...
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1 answer
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Unit test using mocks

As some part of my application needs connection to database I wanted to create tests that use mocks to avoid running special instance of database just for testing. That gave me a glimpse of how can I ...
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0 votes
2 answers
202 views

Need Feedback on JUnit test comparing two timestamps

I am writng a JUnit test case for the below methods : ...
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1 vote
1 answer
89 views

BoltDB Lookup and Add methods and advice on unit testing

I am writing a Go package that handles communication with BoltDB as a part of some larger project. I have 2 methods for interacting with DB. ...
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2 votes
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47 views

A terminal based atom feed reader written in golang

I'm a beginner trying to get a better understanding of golang so I decided to write an atom feeder that runs from the terminal. I am using the gofeed library to parse the atom feeds and the tview ...
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1 answer
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Unit Test case for services method in angular

I want to write the test case for Service class. My Service Class dynamic-form.service.ts ...
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5 votes
0 answers
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SmartUnit: Unit Testing with DI

I was thinking about how unit tests require you to manually instantiate all your dependencies, even though many of them are the same for every test or don't really matter (such as logging, where ...
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2 votes
2 answers
129 views

Mocking Interfaces Golang

I thought of doing the following to mock/test functions in Go and wanted some advice. Let's say you have an interface for a repository: ...
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1 vote
1 answer
85 views

Conventional C# for LinkedList with (non-)nullable references + xunit tests

I'm new to C# and would appreciate any feedback you might have on the following doubly-linked list implementation, particularly WRT the following language features: Exception handling Debug.Assert ...
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2 votes
0 answers
29 views

Interactive, real-time bikeshare web application with Bokeh

As a side project, I'm working on a Bokeh web application to display public bikeshare data on a map. The data is updated every 2 minutes using a periodic callback. Below is the full implementation. I'...
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9 votes
5 answers
2k views

Unit test for a maximum-finding function

A while ago, I got this question as a part of an interview test which asked to write a function to find the biggest number in a vector and write all the unit tests required to show that the code works ...
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4 votes
0 answers
56 views

Testing and coding conventions for testing C with SDL

I finished my first real C project and it was Conways Game of Life. The code is working fine and the game runs. Since this was my first project though I don't know any of the real code conventions for ...
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2 votes
2 answers
74 views

Python unit testing

I have started a hobby project and would like to integrate better and more thorough testing practices. Since I am not too used to it, I'd love to have some feedback on the sample code below. In ...
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-1 votes
2 answers
122 views

Should I add optional parameter to my function for test cases? [closed]

I have the function below, I want to access the context globally and I don't know if it's a good idea, I'm getting the context from the Application, I have TestAppliction in the test environment and I ...
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3 votes
0 answers
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Testing a javascript function that performs side effects

Application context I am working on a game I call "Apes and Snakes". So far the code only allows players to connect to a host using a room code and WebRTC. Players and the host send messages ...
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3 votes
2 answers
84 views

Replace words from a file with words from a dictionary based file

I'm working on a coding challenge that tasks me with taking a file with a dictionary, reading from it, and then replacing the matching words from the input file with what is found in the dictionary. I ...
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-2 votes
1 answer
140 views

Testing Code That Has Time Delays [closed]

Whilst refactoring an app I'm working on I moved a piece of code from the business logic layer to a helper. The code in question is a fire and forget method that will execute a piece of code if it ...
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2 votes
1 answer
90 views

Using pytest fixtures for the expected answers to a test?

I want to test a number of different functions I have written to solve the Fizzbuzz challenge and would like to know what is the best way to check the result? Each function returns a list of the ...
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4 votes
2 answers
169 views

Are these Unit tests OK or am I implementing an antipattern or not following best practices

I am testing a Spring boot service using JUnit 5 and Mockito. I haven't spent much time on unit testing in the past so I'm not sure if I'm accidentally implementing an anti-pattern or not following ...
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