Chaz  Homenick

Chaz Homenick

1593872700

The ultimate guide to iOS Unit Testing with Swift and Xcode

Unit testing is a testing method where you can test “unit” of code whether it is working as you want or not. In Xcode, use XCTest framework to perform unit tests.

Unit test is a function starts with lowercase word "test” and it must be method of subclass of XCTestCase . It has conditions to check code is doing right as expected, but it has no parameters and no return value.

How to setup unit testing

Because units tests are perform under unit testing target you must have to add them before use. You can include “Unit Testing Bundle” in Xcode project two ways :

  • First, is to check “Include Unit Tests” while creating new project.
  • Another, way is to go to File > New > Target and search for “Include Unit Tests” .

After setup it will generate new subclass of XCTestCase in your project inside testing folder which you can find inside Project navigator.

import XCTest

class XCArticleTests: XCTestCase {
   override func setUp() {
     // method is called before each test method
     // setup code here
   }
   override func tearDown() {
     // method is called after each test method in the
     // code to perform cleanup
   }
   func testExample() { 
     // add test case.
     // Use XCTAssert to test code
   }
}

This example defines XCArticleTests which is a subclass of XCTestCase . It has three methods setUp() for initial setup, tearDown() to perform cleanup after execution and test method called testExample to perform all tests. If you want to read more about setup and teardown methods go to link .

How to write unit tests

Define new extension of type Int with a function called cubed which returns cube number.

extension Int {
   func cubed() -> Int {
      return self * self * self
   }
}

Define new XCTestCase subclass CubeNumberTests with a method named testCubeNumber(). This method creates two properties one is number and another for cubeNumber and checks cubeNumber equals to 125.

class CubeNumberTests: XCTestCase {

    func testCubeNumber() {
       let number = 5
       let cubeNumber = number.cubed()
       XCTAssertEqual(cubeNumber, 125)
    }
}

Click on gray diamond button on the left side next to test method. The diamond turns into green if test passes or otherwise it will give error message. The above test will be succeed because cube number of 5 matches 125.

Conclusion

Unit testing is a necessary skill if you want to be a good developer. It look hard in the beginning but it gets easier as you use them. Don’t use unit tests all over your application it will be confusing and time wasting .You should use them when it’s too necessary.

#swift #unit-testing #ios #ios-app-development #xcode

What is GEEK

Buddha Community

The ultimate guide to iOS Unit Testing with Swift and Xcode
Chaz  Homenick

Chaz Homenick

1593872700

The ultimate guide to iOS Unit Testing with Swift and Xcode

Unit testing is a testing method where you can test “unit” of code whether it is working as you want or not. In Xcode, use XCTest framework to perform unit tests.

Unit test is a function starts with lowercase word "test” and it must be method of subclass of XCTestCase . It has conditions to check code is doing right as expected, but it has no parameters and no return value.

How to setup unit testing

Because units tests are perform under unit testing target you must have to add them before use. You can include “Unit Testing Bundle” in Xcode project two ways :

  • First, is to check “Include Unit Tests” while creating new project.
  • Another, way is to go to File > New > Target and search for “Include Unit Tests” .

After setup it will generate new subclass of XCTestCase in your project inside testing folder which you can find inside Project navigator.

import XCTest

class XCArticleTests: XCTestCase {
   override func setUp() {
     // method is called before each test method
     // setup code here
   }
   override func tearDown() {
     // method is called after each test method in the
     // code to perform cleanup
   }
   func testExample() { 
     // add test case.
     // Use XCTAssert to test code
   }
}

This example defines XCArticleTests which is a subclass of XCTestCase . It has three methods setUp() for initial setup, tearDown() to perform cleanup after execution and test method called testExample to perform all tests. If you want to read more about setup and teardown methods go to link .

How to write unit tests

Define new extension of type Int with a function called cubed which returns cube number.

extension Int {
   func cubed() -> Int {
      return self * self * self
   }
}

Define new XCTestCase subclass CubeNumberTests with a method named testCubeNumber(). This method creates two properties one is number and another for cubeNumber and checks cubeNumber equals to 125.

class CubeNumberTests: XCTestCase {

    func testCubeNumber() {
       let number = 5
       let cubeNumber = number.cubed()
       XCTAssertEqual(cubeNumber, 125)
    }
}

Click on gray diamond button on the left side next to test method. The diamond turns into green if test passes or otherwise it will give error message. The above test will be succeed because cube number of 5 matches 125.

Conclusion

Unit testing is a necessary skill if you want to be a good developer. It look hard in the beginning but it gets easier as you use them. Don’t use unit tests all over your application it will be confusing and time wasting .You should use them when it’s too necessary.

#swift #unit-testing #ios #ios-app-development #xcode

Best Swift iOS App Development Company in USA & India

Are you looking for the best swift iOS App Development Company in USA & India? We at AppClues Infotech is one of the leading Swift iOS App development company that help to build Innovative, Secure & high-performance mobile app with modern features & technology.

For more info:
Website: https://www.appcluesinfotech.com/
Email: info@appcluesinfotech.com
Call: +1-978-309-9910

#swift ios app development company in usa & india #swift ios app development company in usa #hire swift ios app developers in usa #top swift ios app development company #best swift ios app development company in usa #app development company in usa & india

Software Testing 101: Regression Tests, Unit Tests, Integration Tests

Automation and segregation can help you build better software
If you write automated tests and deliver them to the customer, he can make sure the software is working properly. And, at the end of the day, he paid for it.

Ok. We can segregate or separate the tests according to some criteria. For example, “white box” tests are used to measure the internal quality of the software, in addition to the expected results. They are very useful to know the percentage of lines of code executed, the cyclomatic complexity and several other software metrics. Unit tests are white box tests.

#testing #software testing #regression tests #unit tests #integration tests

Tamia  Walter

Tamia Walter

1596754901

Testing Microservices Applications

The shift towards microservices and modular applications makes testing more important and more challenging at the same time. You have to make sure that the microservices running in containers perform well and as intended, but you can no longer rely on conventional testing strategies to get the job done.

This is where new testing approaches are needed. Testing your microservices applications require the right approach, a suitable set of tools, and immense attention to details. This article will guide you through the process of testing your microservices and talk about the challenges you will have to overcome along the way. Let’s get started, shall we?

A Brave New World

Traditionally, testing a monolith application meant configuring a test environment and setting up all of the application components in a way that matched the production environment. It took time to set up the testing environment, and there were a lot of complexities around the process.

Testing also requires the application to run in full. It is not possible to test monolith apps on a per-component basis, mainly because there is usually a base code that ties everything together, and the app is designed to run as a complete app to work properly.

Microservices running in containers offer one particular advantage: universal compatibility. You don’t have to match the testing environment with the deployment architecture exactly, and you can get away with testing individual components rather than the full app in some situations.

Of course, you will have to embrace the new cloud-native approach across the pipeline. Rather than creating critical dependencies between microservices, you need to treat each one as a semi-independent module.

The only monolith or centralized portion of the application is the database, but this too is an easy challenge to overcome. As long as you have a persistent database running on your test environment, you can perform tests at any time.

Keep in mind that there are additional things to focus on when testing microservices.

  • Microservices rely on network communications to talk to each other, so network reliability and requirements must be part of the testing.
  • Automation and infrastructure elements are now added as codes, and you have to make sure that they also run properly when microservices are pushed through the pipeline
  • While containerization is universal, you still have to pay attention to specific dependencies and create a testing strategy that allows for those dependencies to be included

Test containers are the method of choice for many developers. Unlike monolith apps, which lets you use stubs and mocks for testing, microservices need to be tested in test containers. Many CI/CD pipelines actually integrate production microservices as part of the testing process.

Contract Testing as an Approach

As mentioned before, there are many ways to test microservices effectively, but the one approach that developers now use reliably is contract testing. Loosely coupled microservices can be tested in an effective and efficient way using contract testing, mainly because this testing approach focuses on contracts; in other words, it focuses on how components or microservices communicate with each other.

Syntax and semantics construct how components communicate with each other. By defining syntax and semantics in a standardized way and testing microservices based on their ability to generate the right message formats and meet behavioral expectations, you can rest assured knowing that the microservices will behave as intended when deployed.

Ways to Test Microservices

It is easy to fall into the trap of making testing microservices complicated, but there are ways to avoid this problem. Testing microservices doesn’t have to be complicated at all when you have the right strategy in place.

There are several ways to test microservices too, including:

  • Unit testing: Which allows developers to test microservices in a granular way. It doesn’t limit testing to individual microservices, but rather allows developers to take a more granular approach such as testing individual features or runtimes.
  • Integration testing: Which handles the testing of microservices in an interactive way. Microservices still need to work with each other when they are deployed, and integration testing is a key process in making sure that they do.
  • End-to-end testing: Which⁠—as the name suggests⁠—tests microservices as a complete app. This type of testing enables the testing of features, UI, communications, and other components that construct the app.

What’s important to note is the fact that these testing approaches allow for asynchronous testing. After all, asynchronous development is what makes developing microservices very appealing in the first place. By allowing for asynchronous testing, you can also make sure that components or microservices can be updated independently to one another.

#blog #microservices #testing #caylent #contract testing #end-to-end testing #hoverfly #integration testing #microservices #microservices architecture #pact #testing #unit testing #vagrant #vcr

iOS App Development in the United Arab Emirates

iOS App Development in the United Arab Emirates

Developed and Developing nations have seen a rapid rise in the demand for iOS app development and the United Arab Emirates is no exception. The use of on-demand apps has increased drastically in the last decade and business is leveraging this demand with launching iOS mobile apps.

Want to develop the iOS app in the United Arab Emirates?

WebClues Infotech after serving multiple clients in UAE has become well aware of the people’s needs in the region. With a highly experienced development team that has completed more than 950+ projects, we are prepared to serve you with your iOS app development needs.

Want to know more about our iOS App Development Services in UAE?

Visit: https://www.webcluesinfotech.com/iphone-app-development/

Share your requirements https://www.webcluesinfotech.com/contact-us/

View Portfolio https://www.webcluesinfotech.com/portfolio/

#ios app development in the united arab emirates #ios app development #ios app #ios #ios app development company #hire ios developer