A good example of this is, suppose, you have to test thousands of forms using automation. That is the beauty of DataProvider! In the last tutorial, we discussed the TestNG Parameters and how to use them for passing the values to your test class from the XML file. c. Right-click on the project "SampleTestNG" ->New->Class. Or you can generate the and then run the XML file as a TestNG Suite. If the parameter is specific to a particular folder, then the parameter is applied within a tag. Design TestNG support two types of parameterization, using @Parameter+TestNG.xml and using @DataProvider In @Parameter+TestNG.xml parameters can be placed in suite level and test level. There are mainly two ways through which we can provide parameter values to testng tests. It has built-in support for the data-driven testing and provides two ways to supply data to the test cases, i.e., via TestNG Parameters and DataProvider annotations. I could put both providers in one, but that is not what I want. Using DataProvider in TestNG, we can easily inject multiple values into the same test case. Parameter passing in TestNG can be done two ways: Using @Parameter tag and you pass the value from your testng.xml Useful when your dealing with simple parameter Using @DataProvider tag Useful if your reading values from prop file or database. The @BeforeMethod method that receives Method and ITestContext, prints the method name and suite name. To add to my answer above, heres the complete code of how you can do it using EasyTest Framework: And so on. 1. It is inheriting the dataprovider since we are inheriting it from another file. TestNG make the testing more easy. I think it may be because I'm using testng inside the maven surefire plugin. Not the answer you're looking for? Read: TestNG Annotations Tutorial With Examples For Selenium Test Automation. It comes inbuilt in TestNG and is popularly used in data-driven frameworks. How to use TestNg retryAnalyzer to executed the failed test again. It can be easily integrated with CICD tools like Jenkins. Verify the output. As an upgrade to this situation, we can pass the same dataprovider to various test methods also. It's required to slightly improve the above code to run the test case like this. Possible to pass parameters to TestNG DataProvider? No parameter is defined in the first test whereas the second test declares a parameter named optional-value in it. We will write a simple program in which we will validate login screen by taking multiple usernames and passwords. In Eclipse, select the file. Using @Parameters annotation, we can pass the value of a parameter to the test logic from the testng.xml file. Hence their division into separate sections. Selenium, Cypress, Playwright & Puppeteer Testing. What are Parameters? It provides all the features like JUnit framework. }, This defeats the purpose of using XML files to configure the test run. With the help of this annotation, you can allow single as well as multiple parameter values to the test methods. Below is the test which uses the parameter from the data provider and runs the tests parallelly. If you dont specify a name, then the methods name serves as the default name. It comes inbuilt in TestNG and is popularly used in data-driven frameworks. The output of running above code as test suite is : As you can see from the previous test results, TestNG has passed the optional value to the test method during the first test execution. It also helps in providing complex parameters to the test methods. Kayathiri Mahendrakumaran 174 Followers You can run the code and check the output. You can use external files to read the data and pass on to the test script through the DataProviders; one such external file is an Excel File. Each requirement points to the class and method (with the correct parameters. The DataProvider in TestNG is another way to pass the parameters in the test function, the other one being TestNG parameters. Drift correction for sensor readings using a high-pass filter. Run the code with Run As -> TestNG Test and see the output. Run the above sample code as TestNG Test and check the output. Though, thereare many other data provider use cases that we would address in a separate post. . In the next section, we will see how to pass multiple parameters in the TestNG dataprovider. What are the consequences of overstaying in the Schengen area by 2 hours? Inheritance would come to our rescue then, let us see how in the next section. 2013-2023 Any parameter value defined at the method level will override the value of a parameter, with the same name, if defined at the suite level. Rerun Failed test in Selenium Automation Framework. It contains well written, well thought and well explained computer science and programming articles, quizzes and practice/competitive programming/company interview Questions. The data is currently stored in either flat files or in simple Excel spreadsheets. @Test methods are expected to depend on other @Test methods. What is cross-browser testing and why do we need cross-browser testing? They worked very well to pass the value and run the tests, but that happens only once per execution. In this free webinar with live Q&A, we will explore the concept of observability, and how it facilitates the concept of testing in production. Create Test Case Using TestNG Annotations Now, we will learn how to create our first test case using TestNG Annotations in Selenium: Without wasting any more time, let us walk through how this can be done. Run the test script, and you will see both the values for the TestNG parameters being passed in one go, the output for it would be as follows-. That is how DataProvider in TestNG plays a vital role in Selenium test automation scripts. We can pass the parameters in two different ways. A simple reason to use parameters is that they let us run a function many times with different values or to run different functions with the same values. A data-driven test would run once for each set of data specified by the data provider object. As we can see from the above test results the test method was executed two times depending upon the data passed to it by DataProvider method. A DataProvider method can have a name so that it can be used to supply data to test methods by just . Based on your requirements, you can access the test methods, i.e., it has no predefined pattern or format. But TestNG can provide some additional features as well. Change), You are commenting using your Twitter account. document.getElementById( "ak_js_1" ).setAttribute( "value", ( new Date() ).getTime() ). Note that If we want to put the data provider in a different class, it needs to be a static method or a class with a non-arg constructor. These will be confusing if discussed here. It also can measure the response time and assert it against a condition you set. Site design / logo 2023 Stack Exchange Inc; user contributions licensed under CC BY-SA. This is great!! It allows automation engineers to use a single test script to execute all test data in . As you can see, to handle the inheritance, all we did was add an attribute to the test method (highlighted above), which specifies the class that has the DataProvider method. ToolsQA.com | All rights reserved. What are TestNG listeners & types of listeners in TestNG. Getting Started with DataProvider in TestNG for Automated Testing. Step 2 : Create a Test Datasheet. In the above testng.xml file, we pass the parameters which are valid to all the classes. Step 2: Now create a Test Class with DataProvider and pass multiple User.java object and print the user details in . This feature allows users to pass parameters to tests as arguments. Now lets view the steps required to use the data provider annotation for data-driven testing. If you want to know more about how the @DataLoader annotation works in EasyTest, look at the following: https://github.com/EaseTech/easytest/wiki/EasyTest-:-Loading-Data-using-Excel, Note that you can use XML, Excel, CSV or your own custom loader to load the data and all can be used in the same test class at once as shown in this example : https://github.com/EaseTech/easytest/blob/master/src/test/java/org/easetech/easytest/example/TestCombinedLoadingAndWriting.java. 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A data provider method prepares and returns a 2-d list of objects. However, TestNG parameters enable us to pass the values only once per execution cycle. Example 1 - Using Method Parameter in TestNG. Here we will follow a simple step by step process to Implement Excel with TestNg Data Provider. Using this method we eagerly initialize the parameters. Causes the test method to be invoked once for each element of the iterator. This is particularly useful when several test methods use the same @DataProvider and you want it to return different values depending on which test method it is supplying data for. Run the test file and see if the output is "Value Passed" or not. It also helps in providing complex parameters to the test methods. You can try that as a practice lesson on your own. The preceding class file contains a single test method that takes one parameter as input. In the below test, we created a test class with multiple methods that accept parameters from testng suite file. You can check from the above file that it has two test methods defined in it. Test case will be executed twice as there are two sets of accounts provided for test. In this tutorial, we saw how easily TestNG parameters or utilities, like the DataProviders, enable us to execute our test scripts. Method: To fulfill a scenario where we can use the same data provider method to supply different test data to different test methods, the method parameter can be deemed beneficial. This is supported by using the testng @Parameters annotation. This is a simple example, but you may come across complex and messy methods where the dataProviders are useful. If we have declared a separate class as the data provider, we need to create an static method in that class with the same syntax as in the previous example. DataProviders help in passing the parameters in different ways. Note: TestNG comes up with DataProvider to automate the process of providing test-cases for execution. In this post, we will see how to read the excel sheet data into 2d array and use it with testNG dataProvider and run the tests. We have to pass the parameters to the test classes via a XML file. Possible to use TestNG DataProvider AND test suite Parameters? Was Galileo expecting to see so many stars? It comes inbuilt in TestNG and is popularly used in data-driven frameworks. TestNG provide two option that you can choose to pass test data to your test method. TestNG support two kinds of parameterization, using @Parameter+TestNG.xml and using @DataProvider In @Parameter+TestNG.xml parameters can be placed in suite level and test level. In this post we will learn about TestNG @DataProvider annotation to parameterize your tests in order to write data-driven tests.In data-driven testing, we run the same tests multiple times but with different sets of data which we pass into test methods using parameters.Let's get going.. Let's take a simple Calculator example: package com.websystique.testng; public class Calculator { public . It comes inbuilt into TestNG and is popularly used in data-driven frameworks. Create a new Java class and name it as . Experience in testing withhandling different methods of Select class for selecting and deselecting for drop down. We need to import the following package and file before we implement this annotation in our project. It has built-in support for the data-driven testing and provides two ways to supply data to the test cases, i.e., via TestNG Parameters and DataProvider annotations. It means that even though we ran the file once, the test . Parameters in TestNG is similar to annotations in TestNG in their declaration. From Chaos to Control: Observability and Testing in Production, Passing Multiple Parameter Values in TestNG DataProviders, Selenium test automation for TestNG scripts, Digital Experience Testing: Need of the Hour for Enterprises [Upcoming Free Webinar], Gamification of Software Testing [Thought Leadership], How To Automate ServiceNow With Selenium [Blog]. We want to run the specific test case with different set of parameters. In this testng.xml file has two tests defined above. Here, we have only one test, but it runs twice with the provided two different parameter set. I have named the class file as "ParametersTesting". The parameter values have been set at both suite and method level in the testng XML file. Providing two @Test methods below: first one test method setting the attribute (=sheet name) , and second one @Test method (depending on the first one)- is driven by a dataprovider that is consuming data from the sheet we've specified. Is this possible? "uploadDate": "2021-09-14", Let's try this with an example: In the above code, I have passed three values a,b and result to check if the sum is equal to result or not. Expertise in Grouping of Test Cases, Test Methods and Test Suites for regression and functional testing using the TestNG annotations like Groups, Parameter and Data Provider. TestNG lets you pass parameters directly to your test methods in two different ways With testng.xml With Data Providers Passing Parameters with testng.xml With this technique, you define the simple parameters in the testng.xml file and then reference those parameters in the source files. 1 2 3 4 5 6 7 8 9 @DataProvider (name = "data-set") Generating Css selectors based on regular expressions - Example (22:10) Code download. Second case: When parameters are specific.. Similar to TestNG Parameters, DataProviders are a means to pass data to test scripts in TestNG. It comes inbuilt into TestNG and is popularly used in data-driven frameworks. Let us quickly understand it with the help of the code. Drop them on LambdaTest Community. But, there is an issue with TestNG parameters. What is a Data-Driven Framework? Practically, we need much more. Dataprovider and the test case method can also be in two different classes. It is alright, but we will unnecessarily increase the lines of code in the java file, which is considered a bad coding practice. Testing Next Generation. In testng.xml, parameter values can be set at both suite and test level. Along with the introduction, we will learn the following to use TestNG dataproviders efficiently: The DataProviders in TestNG are another way to pass the parameters in the test function, the other one being TestNG parameters. While writing test cases, the code tends to get very messy. How is "He who Remains" different from "Kang the Conqueror"? Data providers can run in parallel with the attributeparallel: The Data Provider method can return one of the following types: The first dimensions size is the number of times the test method will be invoked and the second dimension size contains an array of objects that must be compatible with the parameter types of the test method. If you observe the test results, TestNG has used the optional value while executing the first test method. If you want to put your data provider in a different class, it needs to be a static method or a class with a non-arg constructor, and you specify the class where it can be found in thedataProviderClassattribute. Itll takea single String type parameter, i.e.. Itll take two String type parameters, i.e.. It is advisable to create 2 classes one class contains the Test cases and another class defines TestNG parameters DataProviders. How do I withdraw the rhs from a list of equations? This might be confusing, but the following examples will make it more clear. During the second test, it found the parameter value in the XML and passed the said value to the test method during execution. Is lock-free synchronization always superior to synchronization using locks? Observe the following test code, which checks if the sum of two integers is as expected or not. Making statements based on opinion; back them up with references or personal experience. So, even though it is a small and simple code, you might know with how messy codes can get if you have while testing. It is advisable when the data issmall and fixed for the test cases. "@context": "https://schema.org", Parameterization through testng.xml DataProvider In order to know when we should use DataProvider, we also need to know a bit about the other method where we inject parameter values through testng.xml. To understand this, add two classes with the names DataProviderClass and TestClass as below. Required fields are marked *. The code for it would look like below-. Maybe someone will need it too, I rewrote this method public static T[] concatAll(T[] first, T[] rest) in a different way: You can write @Test(dataProvider="name_of_first_dataprovider,name_of_second_dataprovider"). Here, we have passed multiple values name and age via dataProviders. "publisher": { Follow the below steps to make use of the<@Parameters> annotation. Why is the article "the" used in "He invented THE slide rule"? The output says that the variable value "Value Passed" was actually passed to the method. Browse other questions tagged, Where developers & technologists share private knowledge with coworkers, Reach developers & technologists worldwide. Till then enjoy reading this post and share it on social media. Join Vanya Seth as she talks on the topic, "Chaos to Control: Observability and Testing in Production" in a new episode of Voices of Community by LambdaTest. Using @DataProvider and @Test in Separate Classes, TestNG Run Tests and Suites using Maven. I feel there is no powerful tool than a computer to change the world in any way. Parameterized Tests, TestNG Basics An important feature provided by TestNG is the @DataProvider annotation that helps us to write repeated tests or data-driven tests. The test class has a couple of @BeforeMethod methods and a couple of test methods. It also helps in providing complex parameters to the test methods. 5 Ways to Connect Wireless Headphones to TV. We would like to run some of our tests each against a set of data values, verifying that the same conditions hold true for each. It is much cleaner and will work for more complex things. Step 10 - Time for TestNG - Convert Unit Test to TestNG Step 11 - TestNG Advanced Features - XML Suite and Test Reports Step 12 - TestNG Advanced Features - Running Tests with Parameters defined in XML Step 13 - TestNG Advanced Features - Running Tests in Parallel Getting Started with HTML, CSS and XPath Step 01 - Why should you learn HTML and CSS 542), We've added a "Necessary cookies only" option to the cookie consent popup. Step 4: Create a TestNg test case for accepting data from Excel using Data Provider. After running the as a test suite, the output would be as follows. (LogOut/ DataProviders pass the different parameters on a single test in a single execution, whereas parameters pass the parameters just once per execution in TestNG. That's not how TestNG works. It is also possible to provide DataProvider in another class but then the method has to be static. It was all from my side on the topic of dataproviders in TestNG. "description": "Get certified in automation testing with LambdaTest TestNG Certification to take your career to the next level. Use DataProvider to read test data from configuration file or database at runtime. /work/testng/src$ java org.testng.TestNG testng.xml. Similar to TestNG Parameters, DataProviders are a means to pass data to test scripts in TestNG. Let us see through an example that will follow the steps below: In the above codes, though, if you notice, we have just passed a single parameter per execution of the test case. "embedUrl": "https://www.youtube.com/embed/dzXX2hJhuCY" Wouldn't it be better if we could declare TestNG dataprovider in another class and our test case into another? Just provide the same name in every test method, and you are good to go. An XML file is an extensible markup language file, and it is used to structure data for storage and transport. If used like this, which data provider will be used for the test? What does a search warrant actually look like? Here we define the parameter values to be passed. You can pass the additional parameters to TestNG annotations. Thanks for contributing an answer to Stack Overflow! TestNG Annotations are strongly typed, i.e . We are mainly concerned about 2 reports emailable-report.html and index.html. In the above example, any value passed to the mapped-param-name will be stored and accessible through the constructor argument param. The name of the data provider ( data-provider in this case ) must be used by the test method if it wants to use the datasets provided by the provider method. What are the Differences between TestNG vs JUnit testing framework. It is the reason that dataproviders also accept a method as a parameter, and then we can just check the method name and provide the parameters according to it. It will be as shown below-. Right-click and press the TestNG >> Convert to TestNG option to generate the file. What tool to use for the online analogue of "writing lecture notes on a blackboard"? You can use it to handle a broad range of complex parameters like the following. Parameterization In TestNG - DataProvider and TestNG XML (With Examples) Continuous Test Orchestration And Execution Platform Online Perform automated and live-interactive testing on 3000+ real desktop and mobile devices online. Simply create a new package under your project directory and keep the external files under the same project. Index report contains the index-like structure of different parts of the report, such as failed tests, test files, passed tests, etc. We are done! Note: You need to import the DataProvider in TestNG by adding the line import org.testng.annotations.DataProvider; In the above code, I am trying to pass the values "First-Value" and "Second-Value" to the Test method "myTest" with the help of the DataProvider method "*dpMethod()". The previous tutorial has explained the DataProviders in TestNG. How To Pass Multiple Parameters In TestNG DataProviders? Youd want to pass complex parameters or parameters that need to be created from Java, in such cases parameters can be passed using Dataproviders. Alright! "logo": { To learn more, see our tips on writing great answers. Am I being scammed after paying almost $10,000 to a tree company not being able to withdraw my profit without paying a fee. @googlegroups.com We have a test management tool, containing the requirements that needs to be tested. Name this package as "TestNGParameterization". The only difference is that we will pass various values to a single parameter so that a string of input(s) is sent in one go. As you can see, to handle the inheritance, all we did was add an attribute to the test method (highlighted above), which specifies the class that has the DataProvider method. This is important because keeping everything in one place might become messy. RUN YOUR TESTNG SCRIPT ON SELENIUM GRID 3000+ Browsers AND OS Passing Multiple Parameter Values in TestNG DataProviders Passing multiple values is pretty similar to passing numerous parameters. Using text file with DataProvider in TestNG. The DataProvider method can be in the same test class or one of its superclasses. You have your @Test method depend on a @BeforeMethod. Step 4: Run the testng.xml file. In TestNG, theres a concept known as data driven testing, which allows testers to automatically run a test case multiple times, with different input and validation values. Add the following two methods in the class. It is messy to have supporting methods like DataProvider and test code in one class. TestNG provide . Lets now see when and how can we use the <@Parameters> annotationin TestNG projects. Another interesting fact about the TestNG is that it allows passing optional parameters using the @Optionalannotation. Using automation directory and keep the external files under the same name in every test,! Above testng.xml file following test code in one place might become messy TestNG plays a role. Above sample code as TestNG test and testng dataprovider multiple parameters the output file as & quot ; to understand,! Engineers to use TestNG DataProvider to Implement Excel with TestNG data provider will be used to data! Expected to depend on a blackboard '' because keeping everything in one class the. 174 Followers you can generate the < ParametersTesting.Java > file pass data to test scripts in TestNG set at suite... Slightly improve the above testng.xml file, and you are good to go powerful tool than computer. I withdraw the rhs from a list of objects role in Selenium test automation for each set of.. Step 2: now create a new package under your project directory and keep external! The process of providing test-cases for execution in it another interesting fact about the TestNG similar. Has used the optional value while executing the first test method by the data issmall fixed! It was all from my side on the project & quot ; ParametersTesting & quot TestNGParameterization! Science and programming articles, quizzes and practice/competitive programming/company interview Questions you set have been set at both and. Integrated with CICD tools like Jenkins annotations tutorial with Examples for Selenium test automation scripts multiple methods that accept from... The response time and assert it against a condition you set or at. And programming articles, quizzes and practice/competitive programming/company interview Questions with different of. Parameters or utilities, like the following Examples will make it more clear use to! Dataprovider method can have a test suite parameters `` logo '': follow... Variable value `` value passed '' or not description '': { follow the below test, but the test. Pass the value and run the code with run as - > TestNG test and check the.. Use cases that we would address in a separate post broad range of complex parameters to the test methods two... Can try that as a test class or one of its superclasses value passed to the method! Good example of this annotation in our project can be set at both suite and method ( the. An upgrade to this situation, we saw how easily TestNG parameters, i.e.. itll take String! But it runs twice with the correct parameters data to test scripts in TestNG is way. Pass data to test thousands of forms using automation using locks slightly improve above! ( new Date ( ) ).getTime ( ) ).getTime ( ) ) (... In providing complex parameters to the class and method level in the first method... Via DataProviders we have passed multiple values into the same DataProvider to read test data in is! < testng.xml > file and will work for more complex things select for! Messy methods where the DataProviders are a means to pass the parameters in TestNG plays a vital role in test! @ DataProvider and @ test methods also TestNG test and see if the output in is. '': { to learn more, see our tips on writing great answers now see and... Says that the variable value `` value passed '' was actually passed to test!, thereare many other data provider will be stored and accessible through the argument... Predefined pattern or format in their declaration test code in one place might become.. Followers you can generate the < ParametersTesting.Java > ( ) ).getTime ( ) ).getTime ( ) ) (. Optional value while executing the first test whereas the second test, we a! Usernames and passwords now see when and how can we use the data is currently stored in either files. With the correct parameters in the XML and passed the said value to test... On a blackboard '', you have to pass test data to test in... Through which we can provide parameter values can be set at both suite and test suite parameters tools Jenkins... Be used for the test methods to slightly improve the above < testng.xml > file that it be! `` logo '': { to learn more, see our tips writing. Test would run once for each element of the iterator that is not what i want test. Synchronization using locks allow single as well as multiple parameter values can be in two classes... I have named the class file as a test suite, the testng dataprovider multiple parameters define the parameter applied... On other @ test method, and you are good to go are the Differences between TestNG JUnit... It testng dataprovider multiple parameters the parameter is defined in the below test, we pass the parameters to the function. For the test class with multiple methods that accept parameters from TestNG file! Other @ test in separate classes, TestNG has used the optional value while executing first! ) ): now create a test class with DataProvider in another class defines parameters! In either flat files or in simple Excel spreadsheets the parameter values can be easily integrated with tools... Provider will be executed twice as there are two sets of accounts for. What are the Differences between TestNG vs JUnit testing Framework passing optional parameters using the TestNG > > Convert TestNG... You dont specify a name so that it has no predefined pattern or format ; &... Your test method depend on a @ BeforeMethod methods and a couple of test methods, add two classes the. Above sample code as TestNG test case method can have a test class a! The iterator different parameter set, but the following messy to have supporting like..., it found the parameter is applied within a tag well explained computer science and programming articles quizzes. During the second test declares a parameter named optional-value in it particular folder, the! Requirement points to the test classes via a XML file been set both! Twice with the help of the code tends to get very messy data. Function, the other one being TestNG parameters DataProviders parameter, i.e.. itll two... Pass the value and run the code science and programming articles, quizzes and practice/competitive programming/company Questions. Document.Getelementbyid ( `` value passed '' or not science and programming articles, quizzes and practice/competitive interview. - > TestNG test and check the output would be as follows the below to! Data specified by the data provider slightly improve the above testng.xml file and returns a list... Also be in the below steps to make use of the code tends to very! Also helps in providing complex parameters to the method testing Framework and testng dataprovider multiple parameters as below withhandling. Take two String type parameters, DataProviders are a means to pass the test! Method to be invoked once for each set of data specified by the is... Following Examples will make it more clear particular folder, then the methods name serves as default! Logic from the data is currently stored in either flat files or in testng dataprovider multiple parameters! Very well to pass multiple User.java object and print the user details in thought and well explained computer science programming... Defeats the purpose of using XML files to configure the test class or of..., then the parameter is defined in it running the < @ parameters annotation, we will validate login by... Can provide some additional features as well testng dataprovider multiple parameters up with DataProvider in TestNG for Automated.... Passed '' was actually passed to the test function, the test methods are to! And well explained computer science and programming articles, quizzes and practice/competitive programming/company interview Questions it was from... > TestNG test and check the output can do it using EasyTest Framework: and on! Test which uses the parameter from the data provider annotation for data-driven testing science and programming articles quizzes. > > Convert to TestNG parameters DataProviders is much cleaner and will work for more things! That the variable value `` value passed '' or not as the default name name so it. Testing withhandling different methods of select class for selecting and deselecting for drop down you... Class and method ( with the names DataProviderClass and TestClass as below two different parameter.! Output says that the variable value `` value '', ( new Date ( )... Is another way to pass the parameters in TestNG in their declaration this package as & ;. If the output would be as follows method ( with the correct parameters how can use... Process of providing test-cases for execution by 2 hours us to execute our test in! To depend on a blackboard '' that happens only once per execution.. That you can use it to handle a broad range testng dataprovider multiple parameters complex parameters to TestNG parameters takes one as! Following test code, which data provider interview Questions follow a simple by..., then the parameter value in the Schengen area by 2 hours accounts for. Be set at both suite and test code, which checks if the of! Testng projects you set side on the topic of DataProviders in TestNG is another way to the. Option to generate the < ParametersTesting.Java > test classes via a XML file accepting data from configuration or. Become messy data-driven test would run once for each set of parameters the parameter is defined in..: create a test suite parameters different set of parameters test data from Excel using data and. For sensor readings using a high-pass filter run once for each set of data by...
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