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Questions tagged [unit-testing]

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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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Hackerrank: Breaking the records

I'm learning Clojure and am a rank n00b at it, trying to learn from books and online tutorials (but I'm sometimes concerned that I am picking up bad habits or at least not all the good habits). For ...
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Building a GTD Productivity App Designed through Test Driven Development (TDD)

First, thanks so much for looking at my code. Over the past decade, I have tried every task management apps imaginable. I finally realized that the only way I would ever find my perfect productivity ...
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Jest - mocking a class function from an external node module

I am writing unit tests for a NestJS service, which imports and instantiates a class (OAuth2Client) from an external module (google-auth-library) and uses one of its functions (verifyIdToken). I am ...
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Testing lower- and upper bound values in Python

Code functionality The following code tests whether the values that a user specifies for a lower bound and upper bound on two properties: The lower bound is smaller than the upper bound. The values ...
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Microservice unit testing database script insert Error - H2 [closed]

For unit testing my ProductList service, I tried run a script to insert some data and then try to get this data and compare the list size. But my database insert script is not running and returns null....
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2answers
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Complex Numbers & Unit Tests in Python

I've just started a course that will require knowledge and experience with Python for future projects, which I don't have, so I thought I'd give it a go to familiarize myself with it and get some ...
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2answers
72 views

Ray implementation

Problem Statement/Context: Represent a ray, given a origin and direction. Besides this a min_t and max_t value are defined. ...
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1answer
37 views

Test django URLs

I started learning Django and now I want to write some tests for my application. After reading some blog posts and watching youtube tutorials I wrote tests for URLs. Look at below. urls.py ...
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2answers
71 views

Common Unit Testing Code – Follow Up

This question is a follow up question to the Common Unit Testing Code portion of my lexical analyzer questions. My primary concern is the code in the header file and the C source file that implements ...
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0answers
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Express compatible JSON Web Token authentication middleware

I am writing an Express.js middleware function in a TypeScript NodeJS project that uses a function from a third-party module to perform a small workload. When writing unit tests, I want to mock this ...
5
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1answer
70 views

Hand Coded State Driven Lexical Analyzer in C With Unit Test Part C

This review is presented in 3 questions due to the amount of code: Part A contains the Lexical Analyzer and the main portion of the unit test code. Part B contains the lower level unit tests called ...
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1answer
39 views

Hand Coded State Driven Lexical Analyzer in C With Unit Test Part B

This review is presented in 3 questions due to the amount of code: Part A contains the Lexical Analyzer and the main portion of the unit test code. Part B (this question) contains the lower level ...
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2answers
106 views

Hand Coded State Driven Lexical Analyzer in C With Unit Test Part A

This code review is presented in 3 questions due to the amount of code: Part A (this question) contains the Lexical Analyzer and the main portion of the unit test code. Part B contains the lower ...
3
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0answers
27 views

Command Line Utility for Starting Django Projects and Apps with Custom Files

What I'm Doing I'm writing a command line utility for starting Django projects and apps with custom files. The custom files build upon what Django offers, to make sure things like a custom auth user ...
2
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1answer
50 views

Granular vs a aggregated tests when dealing with arrays

I write code in a Test-Driven way and I often build my functions starting with tests for the easy edge cases. For example, given a flat array of Items that have a <...
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1answer
74 views

Binary Search recursive & iterative solution

I have implemented binary search solution by using recursion and iterative approach. I there any way to improve it? Tests ...
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1answer
49 views

Creating a Constructor used only for testing: anti-pattern? [closed]

I have a class which uses the Azure SDK. The class has two constructors, shown in pseudo code below: ...
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1answer
75 views

Tool for converting OEIS sequences into Desmos lists

https://github.com/CascadeIllusion/DesmOEIS Recently began work on a Python project called DesmOEIS to build up my portfolio. It's a simple console program that looks up integer sequences from the ...
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Is there a better way to unit test a repository for a large aggregate root?

In our project we use domain-driven design and our customer aggregate root is large. The unit tests for the aggregate root itself are simple (~50 or so tests), but I am struggling with the repository ...
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1answer
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Haskell Hspec/Quickcheck test for numeric function

I'm learning to use HSpec and QuickCheck. As example I was implementing the Pseudocode from Wikipedia:Extended Euclidean Algorithm. You can find the project at github for the implementation of the ...
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3answers
111 views

CAN Bus testing

I am creating a Python 3.8 script that executes a series of tests that reads and writes information to and from a CAN bus network. I'm using the python-can and the cantools packages. I've managed to ...
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Cypress tests for Monopoly

I am creating Monopoly using react hooks. I am using cypress for testing it. The first test I have to create is to check about dice rolls. I have three tests in which I am repeating the same kind of ...
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2answers
67 views

Mock Atm program basic functions and xUnit unit test

For self learning purpose, I have created some xUnit unit test for these 2 Atm classes. At the moment, data is store in the in-memory object. This version is extended from previous version. For ...
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1answer
28 views

Testing Depth First Search Using Pytest

I have an implementation of depth first search, which I want to test using the pytest framework. I would be making test cases for other graph algorithms, and would ...
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0answers
42 views

Finding, substituting and executing values in dictionaries

I wrote this code for finding, substituting and executing values in dictionary, much like $() bash operator works. I used nested functions for this, forming ...
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1answer
104 views

In Memory Database in Unit tests, isolate the tests

I have stumbled across these unit tests in a code review that are using in memory db: ...
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1answer
127 views

Is this a good unit test for testing three types of mappings all at once?

This question is related to my previous two questions, in which I have implemented HashTable, and also SortedListMap and ...
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2answers
105 views

Sanity check a simple RPG character

I'm writing an assistant for the tabletop RPG Pathfinder in Java. I intend to use the MVVM pattern using JavaFX, possibly through mvvmFX. Before I go into the V-VM phase, I have built a first ...
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3answers
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high card game implementation

I wanted to write a simple implementation for a high card game. Basically two cards are drawn and the higher one wins. Additional rules: support for multiple decks, if same suits drawn then the ...
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1answer
183 views

Multiplayer card game “Hearts” with OOP in Python

To practice Object-Oriented Python and learning how to write tests, I found an exercise and solved it as below(all classes are put in one block of code to make the question a little bit more readable):...
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3answers
134 views

DistinctCount extension method

Here I go again. I have been finding a fairly common pattern in business logic code. And that pattern looks like this: ...
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0answers
35 views

Using an extra mock simply to take advantage of the behaviour observation tooling

I'm writing integration for a project, but our framework doesn't provide any ability to inject dependencies, so I've written tests with a unit testing framework (GTest) and used a mock (GMock) in an ...
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0answers
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NavigationBar component with hooks. Can it be made more readable/maintainable?

I wrote a NavigationBar component in React, using hooks, react-bootstrap, react-i18next and css. Now the component works as I expect it, but the code seems ugly. (I'm new with hooks) Features: It's ...
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1answer
149 views

Secure ADODB: Unit of Work

I've been meaning to revisit this old code for a long time, and this week finally ended up doing it. The resulting code is on GitHub, and for full context and disclosure I wrote a blog article about ...
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2answers
225 views

Increment values in a dictionary

In my continued venture to teach myself C# I came across an exercise using Dictionary. I created a class that has a method. In that method it creates a dictionary with keys/values. A string is ...
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4answers
82 views

PropertySet implementation

Problem Statement: Store properties with a certain name (key), type and value. The key is always a character literal and the value can be of type bool, ...
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0answers
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Parametrize pytest test suite to work for mutiple classes

Context: I am working on a package which lets users access credentials (stored with a defined structure) from a database. The "database" can be a real KeePass database or other text based formats like ...
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2answers
88 views

Unit testing Roman-Arabic-Roman numeric converter

As you can see here, I wrote the methods public static int romanToArabic(String number) and ...
4
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1answer
61 views

Correct way to unit-test express API

I wrote an express API for a document management service (repo to be found here) and even though I understand the importance of unit-testing I never quite managed to wrap my head around how I would ...
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1answer
26 views

How to test that an event will not be fired in xUnit? [closed]

I have two questions. Does it make sense to test that an event will not be fired? If yes, what is the best way to accomplish that using the xUnit framework? For ...
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1answer
26 views

Unit Testing - test deletion of archived files [closed]

I am writing unit test for this function - ...
3
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1answer
60 views

Testing Terminal Text Game with Classes and Game Loop

I am making a super simple and dumb terminal text game to try out unittest in python. I have ran into a problem. When I run the test, the game loop is ran, and I have to manually insert input to ...
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3answers
2k views

Secrets management, operational security, keeping API tokens hidden while streaming

I've taken up code streaming and I'm concerned that as I do so, I'll leak an API token somewhere. It was suggested that I use something like "a secrets.toml or secrets.yaml or secrets.json file." But ...
2
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1answer
52 views

First attempt at Mars Rover Kata done in TDD

I have had an attempt at the Mars Rover Kata and would very much appreciate a review and any suggestions to improve. MessageParser to parse incoming messages and create the domain models: ...
3
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2answers
76 views

Integer index based Union Find with path compression strategy

I've created an integer index based union find implementation in C#, and am looking for some feedback. Unit tests have been written with NUnit. Some questions I am considering: Can the implementation ...
0
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1answer
46 views

Possible Test Cases in Tester [closed]

I am trying to write a human-readable tester for a functioning program. There are four methods in the class Polynomial: ...
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4answers
3k views

Unit testing Video Service class

I wrote my first unit testing code on a service class using Mockito. The code looks like this: ...
6
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4answers
216 views

All your Base - Exercism.io

This is an exercise on the website Exercism. I am self taught trying to learn C# and C++. This is the information from the readme. Convert a number, represented as a sequence of digits in one base,...
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1answer
52 views

Decoupling of validation and data access in ASP.NET

I've been asigned to a project no dev has touched in a long time. It's an ASP.NET MVC 4 application. It appeared to be well coded, but had no testing and the database migration folder is not present. ...

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