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Automated Performance Testing with K6

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Automated testing is running the tests and reporting results by tools with scripts. Automated performance testing is designing the performance test scenarios to run them spontaneously by tools and evaluating the result by tools to decide to go or not to go further.
Automated Performance Testing is A subset of the performance test scenariosDesigned to run spontaneously by toolsDesigned to evaluate the result by toolsDesigned not to break the systemHaving decision metrics, ex: max response time, max-average resp time, ...Designed to create reports for the concurrent and historical run What Types of Performance Testing Should be Automated
Automated performance testing can be applied to all types of performance testing. However, each type needs a different level of maturity and sanity. Automated Performance Testing is Easily applied to load testing Hard to apply stress test, spike test, but have benefits Very hard to apply Soak-Endurance test Automated Load TestsSince the load test is aiming t…

Basics about Performance Testing Tools

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I had an opportunity to give a speech about how we can automate performance testing in CI/CD pipeline in a conference held in Istanbul for the first time "Test automation and Digital QA Submit Istanbul, #TAS19". My subject was "Automated Performance Testing", the first part of the speech is to explain what is performance tests and the second part is to explain performance tools, and the last section is to explain what is automated performance testing and how to implement it to CI/CD. 
In this post, I want to explain my thoughts about the basics of performance testing tools. Next posts will focus on automated performance testing and using K6 as a performance testing tool.

How to Evaluate Performance Testing ToolsBefore diving into the performance testing tools and technologies we have in the industry, we should define the criteria for evaluation. Each tool has its own advantages or disadvantages and similarity between ancestors or others. When we start to use the tool…

Performance Testing

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I had an opportunity to give a speech about how we can automate performance testing in CI/CD pipeline in a conference held in Istanbul for the first time "Test automation and Digital QA Submit Istanbul, #TAS19". My subject was "Automated Performance Testing", the first part of the speech is to explain what is performance tests. 
In this post, I want to explain my thoughts about performance testing. Next posts will focus on automated performance testing and using K6 as a performance testing tool. What is Performance Testing By DefinitionDefining the performance of the system by testing the functionalities of the system in terms of the non-functionalities


Performance Testing is A non-functional testingTesting the functionalities of the systemBoth black-box and white-box testingDefining how the system works under any loadsApplied under different load levelsApplied under different load incrementsApplied under different durationsWhat is Performance Testing in Terms of Proce…

Getting the text of elements in Espresso

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Espresso is not designed to play with UI objects. When you are considering it in terms of capability for testing, it needs to be improved more. It is not as mature as Android SDK itself so you need to customize somethings to handle your requirements. Even you may need to use other tools like UIAutomator integrated into your test suite.
In this post, I want to show how we can handle getting the text of ViewInteraction view. 
ViewInteraction view does not have .text function for getting the text of the object since it is designed to interact with the object. Another method which may solve the problem of the assertion is to use the .check for matching the text, as follows:


However, this method is not a good way to assert that a certain field text equals a value. For this purpose, we need to get the text of the element and assert it. To get the text of the ViewInteraction element, we need to cast it to TextView with getting the assignable form of it then extract the text that the view ho…

How to Set Shared Preferences in Espresso Test for Kotlin and Java

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I have experienced Espresso and needed to deep dive into Shared Preferences
just because it is one of the main parameters used in the application we developed. As a long search in the online sources but there are some pretty old documents for Espresso with Java and very few documents about Espresso with Kotlin. In this post, I want to share my experiences with setting Shared Preferences with Kotlin and Java and how you can use it in your test design. You can follow up the steps for your test project.
Shared Preferences is a way to store user data in local devices so it has been supported since the very early version of Android. Shared Preferences can be stored in the default file or custom file. 
Using Default File for Shared PreferencesIf your application uses the default file it should stores the shared data in the default file provide by Android as in the following path in the device:
/data/data/com.package.name/shared_prefs/com.package.name_preferences.xmlThis is the source code for…

(Micro) Service Testing with Postman - Newman - Docker

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Postman seems to become a defacto tool for service testing because the Postman is very user-friendly, easy-to-learn, all-in-one, lightweight and collaborating tool. Postman has been used for a long time but recently it has growing popularity because of a stable native application, collaboration feature after version 6.2, sharing of collections for team, interactive working with the team, mocks for isolated testing, environments for running the test for different test environments such as local, development, stage ... and many more features. For me, one of the biggest features is easy-to-use for everyone in a team so everyone in a team can use and update a postman collection easily. In this post, I want to explain how postman can be used efficiently. Testing a Service and Writing TestsWith postman testing service is simple. Postman supports many methods like POST, GET, PUT, PATCH. Just select the correct method and hit the service URL you want to test. Postman also has everything that y…