Having written your own test automation framework and test scripts, you can conduct other types of tests, the most typical of which are: Load testing: to find out how well the remote service handles a large number of concurrent requests and whether it is capable or … In that folder, you should find your sample Newman test results. One big item we didn’t touch on was storing in different environments. Excellent! In this case, we’ll set it up to allow you to upload the collection as a parameter. It turns out your software’s API is actually the most important part of the application that you can test because it has the highest security risks. Now back to the task at hand using the newly-installed instance of Jenkins: 1) Create a new “Freestyle” type job in Jenkins. You can simply select it in Postman and it will automatically add the appropriate Header. API testing framework vs ready-made API testing tool Choosing among the tools we described, keep in mind that some of them are better for writing an automation framework (RestSharp, REST Assured, and Requests), while other tools (Postman, SoapUI, Katalon, and jMeter) can be utilized as they are. Does it have an Apache error message that includes the version of services running? The main objectives in functional testing of the API are: 1. to ensure that the im… In this post, we see API Testing Interview Questions. Software system that executes an API includes several functions/subroutines that another software system can perform. The ID can be found in the URL for that test module page. URI (/oauth/token which will follow the URL for the instance of qTest you’re using), 4) If you’re using Tricentis qTest Manager, go ahead and structure your tests and write out what it is that you want to test in a test case. This is an initial release of the STEMscopes 2.0 Assignment Client API for review and comment. We will use t he scheme of virtual SOAP API of a state project with quite complicated and complex logic as an example. ), but I think we should also upload the test results to Tricentis qTest to give evidence of these tests passing or failing. API Testing is critical for the software systems to perform at high-quality. The part after the -r option is a bit scary. Once you’ve created the collection, you can save your call by clicking the “Save” button on the top right of the screen (your standard OS shortcut works as well). Be careful not to copy in “pretty quotes” from a Microsoft Word document or other source that does additional beautification of your text. “description”: “Step 1 – open login page”. The purpose of API Testing is to check the functionality, reliability, performance, and security of the programming interfaces. To make sure everything worked as it should, check what the tests did – which should be adding some new test cases to your project. What if the module ID doesn’t exist? I have created this course for testing engineers and well as for software developers. Save these on your machine where you are navigated in your terminal. Fortunately, API testing is not only the most vital testing to be done against your application, but it is also the easiest and quickest to execute. API (Application Programming Interface) is a computing interface which enables communication and data exchange between two separate software systems. To do so, we can use a script that I wrote, which you can find here. For test_steps, this will be a. in between two square braces. There are two types of interfaces for a... To understand Cyclomatic Complexity, lets first understand - What is Software Metric? While both validation and functional testing are somewhat generalized in their approaches, UI testing is more specific. 5) Once you’re in your terminal, there’s nothing left to do but to run your test! API Test cases should be grouped by test category. Call sequencing should be performed and well planned, Fails to handle error conditions gracefully. Web services might not contain all the specifications and cannot perform all the tasks that APIs would perform. In API Testing, instead of using standard user inputs(keyboard) and outputs To do so, we can use a script that I wrote, The part after the -r option is a bit scary. In case you do want to use Docker, you can get started by downloading the de facto Jenkins Docker instance and changing the Dockerfile to include node using the following node installation code found in the Docker/Jenkins Repository: RUN curl -sL https://deb.nodesource.com/setup_4.x | bash. Tricentis Tosca API testing approach uses the same model-based test automation behind all Tricentis automated testing… In this case, we call one of the API function which in turn will call another function. Policy assignments apply to all resources contained within their scope. This operation creates or updates a policy assignment with the given scope and name. API testing is a type of software testing that involves testing APIs directly and also as a part of integration testing to check whether the API meets expectations in terms of functionality, reliability, performance, and security of an application. For this demo, I’m going to use the Tricentis qTest Manager API as it’s straightforward and public. It is an indispensable test in software engineering. For example, the browser or application that houses the client side software can prevent a lot of poor user experiences, such as sending 100 character user names or allowing for weird encoded character inputs, but does your API prevent those things too? This documentation should include: In this example, the login call requires the x-www-form-urlencoded Content-Type Header. First, we need to log in and store our token. 5) Once you structure your tests and write what you want your test cases to do, link that work to your requirements for full traceability and then hook your automated test executions up to that test case. They return any value such as True (in case of success) or false (In case of error) as an output. If it were a GET, you’d be passing in your username and password through a URL. ReqBin is the world's most popular online API testing tool for REST, SOAP and HTTP APIs. API testing is a type of software testing that involves testing application programming interfaces (APIs) directly and as part of integration testing to determine if they meet expectations for functionality, reliability, performance, and security. between two software systems. There are also tons of APIs available online that you can use (I recommend starting with AnyAPI if you’re looking elsewhere). We could fail the build here if the tests fail (great idea for API tests! For an introductory tutorial, see Getting Started with ASP.NET Web API 2. 8) There is just one more step before we actually write a test, as we need to do a few things with the HTTP response: Note that we don’t care about the other fields – they are not important for you to test that you’re logged in. Verifying the Sequence of API calls and check if the API's produce useful results from successive calls. JSON My personal recommendation would be to catch up on following things (thankfully, there are lot… In the example below, you will want to change the test case IDs to match test case IDs from your own project. I recommend running this against your dev environment every time the developers push to the working branch. Copyright ©2020 Tricentis. Looking at the login documentation, I see this is a POST request. Let’s use a more typical JUnit output that Jenkins can understand. API testing is a type of software testing where application programming interfaces (APIs) are tested to determine if they meet expectations for functionality, reliability, performance, and security. It’s a JavaScript regular expression that tells the script where to look for the test case ID (or name if -i false were present). 2) Now we’ll run the script with the command, node uploadNewmanToQTest.js -f newman-json-result.json -c creds.json -i true -r “([0-9]+)\-*?”. Test Page | API Docs | Download. We’ll create an environment variable and call it “access_token”: The beauty of storing this access token is that you can now use it in your subsequent calls. 2) Make sure you have the API documentation for your application handy. If there is something you’d like to see, don’t hesitate to comment or drop a line to Tricentis. This tutorial assumes you are familiar with the basic concepts of ASP.NET Web API. Here is a sample of how you might archive and use the JUnit test results. While you can also upload results directly to qTest Manager using the JUnit results and the automation content, using the API provides more flexibility for how and where the test results appear within the tool. You also should know the methods, lists and vocabularies, cycles, and classes. API TESTING is a software testing type that validates Application Programming Interfaces (APIs). Currently it only demonstrates the intended API and does not actually store and/or retrieve any … To do so, I recommend Newman, which is an executable program for running Postman collections that’s written in Javascript and can be installed with the node package manager (NPM). 4) Export your collection from Postman (just right click on the tests you want to export in the left pane) and export your environment (go to “Manage Environments” and hit the download button) from Postman. To fill in this variable, we need to get the ID of the project in qTest, which we can get from the qTest URL. Assignment 4: Testing and API Consolidation (10 points of 100) Deadline: Wednesday November 21th - 5 pm (Zurich time) 1. This script has a lot of options and not all of them are completed. API consists of a set of classes/functions/procedures which represent the business logic layer. “expected”: “user is redirected to the home screen”. For example, if the test case name is “Verify Successful Login” and -i false (using test case name instead of ID), then it will look for a corresponding test case with the name “Verify Successful Login.” Of course, if this name appears twice, it will update associated test runs with both test cases. If you’re using  Tricentis qTest Manager, you can also download the Jenkins qTest Manager plugin here. The purpose of API Testing is to check the functionality, reliability, performance, and security of the programming interfaces. Furthermore, if you want to use the built in JUnit Jenkins viewer, you can archive the XML test result and point the tests to it. What if the project belongs to another customer? Accessibility Testing is defined as a type of Software Testing... Verification in Software Testing Verification in Software Testing is a process of checking... To understand GUI Testing lets first understand- What is GUI? That means there’s no reason you shouldn’t have an extensive API test suite (and trust me, having one will help you sleep much better at night). Please fill in the questionnaire for Assignment 3 (API Design) here: List of the best free online API Testing Tools for Testing REST and SOAP APIs and Web Services: Application Programming Interfaces (API) testing is a type of software testing where testing cannot be done at a front-end since there’s no GUI. At this point, we have successfully written tests that run with our CI job. No desktop app. This test is specifically concerned with the function of the UI, … In order to test an API, you will need to, In this API testing tutorial, you will learn more about-, Let's look at an example of each of the above Types in this api testing tutorial. . Performance Issues. API Testing Interview Questions. This means you can automate your tests and you don’t need to manually get your login token every time. Looks pretty, right? Of course this is just one example of many for how to do API testing. See why 600'000 of users use ReqBin for testing their APIs online! This script has a lot of options and not all of them are completed. Following tutorials provide a detailed guide to automate API test. To create a new Postman Collection, just tap the folder icon, the plus, in the left panel. API tests are very different from GUI Tests and won't concentrate on the look and feel of an application. They could get production data, they could Bitcoin ransom the servers or they could hide on the machine until there something interesting happens. API response time is very high. 1) First thing’s first: You need to download Postman. The bottom line is, the stakes when using an API are much higher than if there is just a bug in the UI of your application — your data could be at risk and, by proxy, all of your users’ data. Reliability Issues. Create : Creates or updates a policy assignment. A developer should not assume the API design is so intuitive that … You must be able to do this in order to run it from Jenkins or any other continuous integration scheduler. Verify if the API triggers some other … If you’re using  Tricentis qTest Manager, you can also download the Jenkins qTest Manager plugin. If you don’t want to install Jenkins directly on your machine, you can install it with Docker. What if you upload a file that is massive? API (application programming interface) testing is a type of software testing that performs verification directly at the API level. Verify that you get back a non-empty access token, 11) Let’s take a look at the documentation for adding a test case, description: This test case was created by the API test, 13) Next we have to turn our attention to the two array properties we have. UNIT TESTING is a type of software testing where individual units or... What is Accessibility Testing? With an API test suite in place with your Continuous Integration you can easily: So how do you actually put all of this into action? The main purpose of this post is to solve all the problems mentioned above by automating the API testing and integrate it with Jenkins CI. Questionnaire Each team should have collected the time expended in Assignment 3. For test_steps, this will be a JSON array, which is a comma separated list of JSON objects in between two square braces. Great! Take a look at both — they should be created under a folder called “Newman” in your working directory (aka the directory from which you ran the Newman command). Postman can help you during the development of your API as well as after the API is completed, by running tests that make sure your API is still working as intended. By default, the entire test case name in the results will be used if no regular expression is provided. API TESTING is a software testing type that validates Application Programming Interfaces (APIs). 1. No coding. I just uploaded the collection.json since I’m not using the environment file yet, but you can add it to the command line with: `newman run collection.json –e environment.json`. 14) The final request headers use the token from the first call. It is a part of integration testing that determines whether the APIs meet the testers’ expectations of functionality, reliability, performance, and security. API Testing is different than other software testing types as GUI is not available, and yet you are required to setup initial environment that invokes API with a required set of parameters and then finally examines the test result. 2. Be careful not to copy in “pretty quotes” from a Microsoft Word document or other source that does additional beautification of your text. You’ll use the same command you used to run it from your own command line earlier (assuming you’re using the same OS) except your path should now just be collection.js, as you named it `newman run collection.json` in the File Parameter name field. Test all of your endpoints no matter where they are hosted, from AWS Lambda to your local machine. Ultimate API Testing Guide for Automation Success Ultimate API Testing Guide for Automation Success. Most importantly, tests that the API returns a correct response or output under varying conditions. 3) Next, pull up the documentation for the login call for the API you’re using (you can find the documentation for Tricentis qTest Manager below). In API Testing, instead of using standard user inputs(keyboard) and outputs, you use software to send calls to the API, get output, and note down the system's response. DML (SQL) on the basic level: SELECT, INSERT, UPDATE, DELETE. Now that we have tests run from a command line, it’s time to get this put into our Jenkins job so it can be included as part of continuous integration. Ensure all of your services are running as expected. If you’re using a tool like qTest Manager that links to JIRA, you’ll see all your text executions in JIRA for every matching requirement. 6) Now let’s make our first call to the login endpoint so that we can get a token (we’ll later pass the token to subsequent calls so the API knows that we are logged in). Or what if someone were to hack the API? When you do this with your own projects, you should commit the Postman collection into whatever repository you’re using and pull directly from that repository to build by selecting “this project is parametrized” and then choosing “Add Parameter” with a “File Parameter.”. If you want to test on your development, QA, staging or production environments, you probably have different test data or logins you want to use for each environment. Measurement is... Training Summary Behavior Driven Development (BDD) is a rising methodology to test and check your... To ensure complete test coverage, create API test cases for all possible input combinations of the API. Before going to API Testing tutorial, let's first understand. Before going ahead, let’s see some unavoidable Interview Questions which every hiring manager asks you in any Software Testing interview. I wrote, which you can install it with Docker comment or drop a line to Tricentis Manager... Something like: ` Newman run –reporters JUnit, JSON path/to/my/exported/json/postman/collection.json option, Postman will allow you to upload test... A... to understand Cyclomatic Complexity, lets first understand different from GUI tests and you don ’ t to... More specific are secured from unauthorized and unauthenticated users by test category be able to do API testing a! Api as it ’ s first: you need to log in and store our token test should! The unit tests in this topic are intentionally limited to simple data scenarios, see Getting Started with Web... Please comment below and I will do my best to respond headers use the Tricentis qTest Manager you! That API is working services are APIs but not all of your services are APIs but not all them! Now test it and run the entire test suite or just subfolders at once using the “ ”. Do this in order to run your test management tool or drop line... 600'000 of users use reqbin for testing RESTful APIs for Web applications change. Is exactly what it says on the look and feel of an application to. Functions/Subroutines that another software system can perform tests brittle – be smart about what you ’ re Jenkins. 'S most popular online API testing is a comma separated list of JSON objects in between square..., lets first understand and if someone starts guessing other users ’ “ unique ” tokens, does software! In Postman and it works on Mac, Windows and Linux machines Jenkins! Hence, Setting up a testing environment for API testing is a software testing that. The time expended in Assignment 3 token from the first tests test automation all! From qTest is intended to reveal bugs, inconsistencies or deviations from the API are... The methods, lists and vocabularies, cycles, and security of the land, writing out the! Until there something interesting happens path ) called { project } testing requires an..: //www.npmjs.com/package/newman/tutorial all the tasks that APIs would perform example: there a. The user interface for your API and its constituent parts and password users ’ “ unique tokens!, etc automatically add the appropriate Header updates a policy Assignment with the given scope and name process writing! Ve created into a Postman Collection, just tap the folder icon, the API but! Going ahead, let ’ s straightforward and public and use the used! And uses them as the test case ID from qTest you have the API application but also the... Detailed guide to automate API test means you can install it with.... And server should be called to check whether that API is working s time to the... Consists of a state project with quite complicated and complex logic as an output needs to be given as parameters... Techniques, input parameters and the execution of test cases 10 ) Next we have successfully written that! Https: //www.davidbaumgold.com/tutorials/command-line/, https: //www.npmjs.com/package/newman/tutorial living in a time of great change and testing. Deviations from the API 's are checked based on input condition - the return value from the 1! ’ ve created into a single automated test cases should be inside quotation... I will do my best to respond idea for API testing tool that it... It ’ s nothing left to do so, we ’ ll set up! And use the JUnit test results to Tricentis qTest Manager, you can a. A time of great change and API testing is to check the,... Check whether that API is working by test category script that I wrote, which a... Properly, it ’ s fun and it will automatically add the appropriate Header offers a comprehensive testing! Here is a post request to learn a little complex let ’ s fun and it on..., etc frequently changing requirements API defines requests that can be used, etc log in and our... But to run it from Jenkins or any other continuous integration scheduler SOAP HTTP! Will allow you to enter name/value pairs for grant type, username and password through a URL the qTest... Test all of your endpoints no matter where api testing assignment are hosted, from AWS Lambda to your local.! Verbatim, you will want to install Jenkins directly on your machine you... Another function means you can also download the Jenkins qTest Manager API as it ’ s use a that! Well as for software developers t he scheme of virtual SOAP API a! Restful APIs for Web applications option, Postman will allow you to upload the Collection and one the! All Web services might not contain all the tasks that APIs would perform sequencing should be called to check that! Jenkins instance installed locally is great, but I think we should also upload the test case ID single. These on your machine where you are developing APIs as well and data exchange between two braces. Daily scrum meetings it says on the tin – a test case name in the will. Https: //www.davidbaumgold.com/tutorials/command-line/, https: //www.npmjs.com/package/newman/tutorial a get, you should Now have a fully working Jenkins instance locally! Is done, the testing approach, best practices and tool used for testing engineers and as! Better understand the functionalities, testing techniques, input parameters and the execution of test cases be... The tin – a test case IDs to match test case name in the URL ( path called... Every hiring Manager asks you in any software testing where individual units or... what API! Lists and vocabularies, cycles, and security of the Programming interfaces we successfully. Tosca API testing happy path ” not only the API functions correctly compare expected and results. Programming interface ) is a testing-only example site and run the entire test suite or just subfolders once! Token from the first digits and uses them as the test should do this course for testing?... Changing requirements can use a script that I wrote, the entire test case ID from qTest APIs ) )! Tasks that APIs would perform the.json reporter from Newman get, you can the. Find your sample Newman test results ) to use the JUnit test results to Tricentis qTest Manager.. Message layer I have created this course for testing their APIs online introductory,... Test suite or just subfolders at once using the “ Runner. ” SQL ) the...: 1 verified with an API for review and comment Entity Framework unit! Are hosted, from AWS Lambda to your local machine this operation creates or updates a policy Assignment the. Junit output that Jenkins can understand case name in the results will a.. Not to make your tests brittle – be smart about what you ’ re testing it typical JUnit output Jenkins! Automation testing technique that is massive should do APIs lack a GUI, API testing,... Bugs, inconsistencies or deviations from the API testing tool that makes easy... S take a lay of the API testing, its types, the entire test or... Own project different environments what it says on the business logic layer of API. Environment for API testing is a variable in the example below, you can get a of... Which should add two integer numbers or drop a line to Tricentis Manager! Frequently changing requirements time to write the first digits and uses them as the test case release... Cycles, and each JSON object within the array strings should be performed well! Use a more typical JUnit output that Jenkins can understand archive and use the token from the first digits uses! A post request are developing APIs as well as a parameter will use t scheme! Hook your automated test Sequence each test, you can automate your tests and requests you ’ re in terminal... Data related issues that ’ s fun and it works on Mac, Windows and Linux.... To API testing is a sample of how you might archive and use the token used with double braces! But to run it from Jenkins or any other continuous integration scheduler data exchange between two separate software to! Approach, best practices and tool used for testing RESTful APIs for Web applications faced with related... Might archive and use the token from the … 1 and public computing interface which enables communication and data between. Cyclomatic Complexity, lets first understand - what is software Metric ID from qTest idea. And that ’ s fun and it works on Mac, Windows and Linux machines Sequence of testing. And check if the tests fail ( great idea for API tests are very different GUI! Application Programming interface ) is a sample of how you might archive and use the reporter... A policy Assignment with the test case IDs to match test case tool. Call requires api testing assignment x-www-form-urlencoded Content-Type Header s take a lay of the API function in. Able to do but to run it from Jenkins or any other continuous scheduler... To handle error conditions gracefully to automate API test drop a line to Tricentis the declarations of land. Produces two types of interfaces for a... to understand Cyclomatic Complexity, lets first -. Constituent parts to use this script has a lot of options and not APIs. Will be used if no regular expression is provided also frequently changing requirements it works on Mac, Windows Linux! Unauthenticated users lists and vocabularies, cycles, and each JSON object within the array strings should be of... To see, don ’ api testing assignment hesitate to comment or drop a line Tricentis...