mock http:request in munit mule 4

Did this satellite streak past the Hubble Space Telescope so close that it was out of focus? Here different event processors for testing the application are used like Set Event, Mock When, Assert That and Verify Call. Eventhough I mocked subflow to test the main flow, the flow is executing the sub flow. After the test connection is successful press OK. Now we have to give the query as shown below: And after that we have to add a transform message to make the payload to json and then add a logger as shown below in the image: And after that we will have to deploy the project and once the project is deployed, we will send the request in Advanced REST Client and will check the response as shown below: After getting the200OK status we can check the response. Lets discuss, how all these processors are working. How to match a specific column position till the end of line? Figure 7: Verify Call structure and its use. Configure the mock to call the desired flow. . MUnit is the Mule application testing framework that enables developers to create, design, and run unit and integration tests on Mule applications created within Anypoint Studio. MUnit version 2.0, works with all mule version since 4.0. July 3, 2020 at 3:58 AM. Over 2 million developers have joined DZone. ApikitRuntime Exception: Invalid API Descriptor + Raml parser uncaught exception: null, What does it mean? Teams. Just right click on the Munit test and Run Munit test, as demonstrated below: Figure: Successfully executed after running the MUnit test cases. CAUSE This is caused by the known issue in MUnit embedded runtimes of certain versions PRODUCTS AFFECTED MUnit embedded runtimes: 4.2.0; 4.2.1; 4.2.2; SOLUTION The issue is fixed in Runtime v.4.2.3 How do you ensure that a red herring doesn't violate Chekhov's gun? Does Counterspell prevent from any further spells being cast on a given turn? 1997- 2021 V-Soft Consulting Inc. All Rights Reserved. To subscribe to this RSS feed, copy and paste this URL into your RSS reader. MUnit test fails when mocking external REST API call, Set Inbound Properties for MUnit Flow Reference in Mulesoft for APIKit, Assert exception thrown in MUnit, Mulesoft, Set HTTP Url Parameters for MUnit Mule Test. How to notate a grace note at the start of a bar with lilypond? In the above image, the green color indicates the successfully executed and passed test case. In Mule 4, you can leverage DataWeave to mock your test code, either by creating DataWeave scripts or by using variables in a DataWeave module. Over 2 million developers have joined DZone. Drag and drop it in the behaviour section of munit-test-suite flow and select Pick processor as shown below in the image: After that we will have to choose the component and its doc:name and after that click on OK as shown below: After that will create a sample.json file in the src/test/resources as shown below: In the sample.json file give the response we got from SELECT to Mock it as shown below: After it in the Mock then we will give the Payload value as shown below, as this will take the sample.json data there as payload: Now, will drag and drop the Assert that under the Validation section to assert and validate the payload. For creating Munit tests for applications: Right-click on the flow> Munit>Create new Munit . It could be a payload, a variable, a list of attributes, or even an error. For example: Given this flow, setup a named object store and caching strategy that uses said object store: Then is your tests, setup a before action to clear that store: Where as, without the os:clear it would only miss the cache first time, and print out the same payload from the cache: Or alternatively, you could move the cache and http processors to their own flow and mock the flow instead so cache is never used in your tests. Wehave completed the development of your Mule application and need to test it, but in our application, there is a database connector in the message processor region and the database is not ready to accept any request; but, we still want to test the application. 101 Bullitt Lane, Suite #205 Louisville, KY 40222, 502.425.8425 TOLL FREE: 844.425.8425 FAX: 502.412.5869, 6400 South Fiddlers Green Circle Suite #1150 Greenwood Village, CO 80111, 208 N. Green Street, #302, Chicago, IL 60607, 2810 Crossroads Drive, Ste. Drag and drop it in the validation section of the munit-test-suite flow. This speeds up the development process for applications, compared to Mule 3. So, the actual payload will compare with an expected payload. I am trying to create MUnit for the below flow. For example, you can mock a web service consumer such as this one: By configuring the mock-when processor as shown in the following example: This mock-when processor mocks a call to the OrderTshirt operation in the WSDL definition. Making statements based on opinion; back them up with references or personal experience. In some cases, Mock When is required for a database connector. Mule 4: HTTP:SERVICE_UNAVAILABLE when trying to send a request to a HTTP listener in a MUnit test, How to raise a Custom Error With Internal payload (error.errorMessage.payload) in MUnit. Create a project in Anypoint Studio. As the below flow triggers from the mocked component in the MUnit test case. In this case, the foreach counter is evaluated to decide which payload to set: To mock processors like file:list or ftp:list, you must return a Mule message collection as payload. Encoding: Defines the encoding of the message. Similarly, MuleSoft provides a framework called MUnit. Not the answer you're looking for? If a law is new but its interpretation is vague, can the courts directly ask the drafters the intent and official interpretation of their law? To test unit and integration test cases for the API-led connectivity, we use MUnit components to produce scenarios of downstream APIs along with response structure to validate downstream APIs expected HTTP response status codes. How do you get out of a corner when plotting yourself into a corner. Join the DZone community and get the full member experience. Now we will give the dynamic query and for thatwe will pass the queryParam and that we will store in a variable. I think that Matt is talking about to mock a "request" processor behavior in case of error, not an actual call to a "listener" processor as you shown. Mule 4Mule 4.x.x . There can be more scenarios, likewe are connecting to JMS queue but JMS is not ready, and we want to test the application. When you run the MUnit test, you notice the HTTP Request is not mocked, but rather it tries to execute which could cause errors or unexpected behavior. Is it possible to create a concave light? The Mock When processor also enables you to mock errors in your operations. Is it possible to create a concave light? Does anyone have an idea about how a response payload from a cache-scoped request should be mocked in a way that does not affect all the test suite? For example, you can use the Mock Event processor to mock a POST request with a mocked payload: You can set the processor attribute to define the processor to mock and set the with-attribute element to define the attribute name and value. Join us next week for a fireside chat: "Women in Observability: Then, Now, and Beyond", A Complete Guide on How to Convert InputStream to String In Java, The YAML Document From Hell JavaScript Edition, Kubernetes Cluster Setup on Ubuntu, Explained, How to Monitor Apache Flink With OpenTelemetry, Write MUnit to Validate API Integration (Mule 4). Why are physically impossible and logically impossible concepts considered separate in terms of probability? After runningMUnit suite, it will provide test result, errors, failures (if any) and other details on the console in Anypoint Studio. Once the MUnit suite is triggered, then it will provide details such as errors, failures (if any), coverage report, and test status. I am intending to create two mUnit test flows to cover unit testing. Execute the following command in command prompt: 1 1 java -jar %DERBY_HOME%\lib\derbyrun.jar ij Execute the following command 1 1 CONNECT 'jdbc:derby:DemoDb;create=true;user=me;password=mine';. How do I handle an exception and send back an HTTP response in mulesoft? Mule 3 uses a getResourceAsString () function to incorporate external or mocked resources into your tests. But in case you need to use similar data, you can clear the cache before each test. This is my http request that gets called in a loop. Understanding MUnit Test In MuleSoft Mule 4. By clicking Accept all cookies, you agree Stack Exchange can store cookies on your device and disclose information in accordance with our Cookie Policy. Click or drag a file to this area to upload. Minimising the environmental effects of my dyson brain. Find centralized, trusted content and collaborate around the technologies you use most. Do I need to mock flow-ref component or sub-flow component? The set-event has the cloneOriginalEvent property. This flow will be called by the mock, which sets a variable that changes depending on the incoming event. To overcome such scenarios, configuration-based MUnits will act as a reusable asset to reproduce and test the success level of new improved features of applications. What is the purpose of this D-shaped ring at the base of the tongue on my hiking boots? MUnit does not mock a custom REST connector. Below is the flow for which we will create MUnit tests and will mock set-payload component. . How to tell which packages are held back due to phased updates. For mocking of the database we passed one dummy database payload in value as MunitTools::getResourceAsString('sample_payloads/database_payload.json'\), inside the folder location where it will compare with the actual database payload. By clicking Accept all cookies, you agree Stack Exchange can store cookies on your device and disclose information in accordance with our Cookie Policy. We can define attributes as shown below to mock one set-payload. I need to mock http requests with a variable query param and uri param. MUnit coverage is based on the volume of MUnit message processors executed. In this case, we have mock set-payload component. For instance, in the below code snippet value assigned to expectedErrorCode variable from value populated from YAML file. As your tests suites start to get bigger and more complex, its a good practice to externalize some parts of the test code, not only so that you can keep the code clean and organized but also to reuse the files that you need to mock for your tests. Not the answer you're looking for? Copyright 2023 Salesforce, Inc. All rights reserved. Figure: Assert That structure in MUnit and its use. If dummy payload is equal with the actual one then only Mock will work properly. whereValueisthe value that the attribute of the real message processor should contain. Making statements based on opinion; back them up with references or personal experience. What is the point of Thrower's Bandolier? Site design / logo 2023 Stack Exchange Inc; user contributions licensed under CC BY-SA. MunitTools provides a function to mock these payloads: fun createMessage (payload: Any, attributes: Any = null) fun createMessage (payload: Any, mimeType: String|Null , attributes: Any, attributeMimeType: String|Null) Select MUnit -> Create new MUnit.xml suite. This processor is defined to verify if any processor was called. If the database in this application and the connector used in the message processor are not ready to accept any request, we still we want to test it. MUnit MUnit Processors Mock When Mock When Event Processor The Mock When processor enables you to mock an event processor when it matches the defined name and attributes. MUnit is a Mule Application Testing Framework that allows you to easily build automated tests for your Integration and APIs. Note that the recorder requires at least Anypoint Studio 7.5 and Mule runtime 4.2.2 to work. Learn more about Teams There are various scenarios where we can use the Mock Message processor. Assume that you have an HTTP requester in your flow with an On-Error scope that catches any connectivity errors and returns a custom payload if the connection fails: You can assert that every time the HTTP request fails, your application returns your custom payload: You cannot return all known error types of a Mule application. Opinions expressed by DZone contributors are their own. Configure a then-return element to throw an. If you try to return an error type that is out of the scope of the flow youre testing, you get a MULE:UNKNOWN error instead of the configured one. RUN: 1/1 ERRORS: 0 FAILURE: 1. It will create MUnit tests in the folder src/test/munit of your Mule application. By clicking Post Your Answer, you agree to our terms of service, privacy policy and cookie policy. Part 1: Setup Sample Mule Application Any ideas if I am missing something while mocking the sub flow. The nature of simulating nature: A Q&A with IBM Quantum researcher Dr. Jamie We've added a "Necessary cookies only" option to the cookie consent popup. Here a value is passed as 'requestPath':'/listener' which will point to the main flow. Q&A for work. In such cases, we can again make use of mock message processor. . This means that your test case has been complete, successfully executed, and passed. You can use either a then-return to return a static, constant value, or you can use a then-call to invoke a flow for cases where you might want the returned value to change over time, or to have different responses according to certain inputs. Are there tables of wastage rates for different fruit and veg? As platform behavior changes with enhancement or required fixes for longer periods of platform existence, in such scenarios modifying or creating new MUnit test cases for the same integration flows will be an additional effort for the development team. Acidity of alcohols and basicity of amines, Replacing broken pins/legs on a DIP IC package. I have a flow containing an http request to an external service. Why do small African island nations perform better than African continental nations, considering democracy and human development? In Mule 3.8, all Mule functions were in a single category. If the HTTP Request is outside of the Choice Router, it is mocked properly. Here we will do an example on how we pass the test cases in MUnit. If so, how close was it? If set true, then it clones the event produced by the code and by default this property is false. The coverage report provides metrics on how successfully the Mule application has been executed by a set of MUnit tests. MUnit is an integrated feature with Anypoint Studio and supports dependency tools like Maven. MuleSoft has a framework called MUnit that allows us to write automated test cases for our APIs and integrations. What is the correct way to screw wall and ceiling drywalls? So to store the queryParam we will drag and drop a Set Variable before the Select component as shown below: And will change the query to dynamic query as shown below: Now will deploy the project and once the project is deployed, will send the request in Advanced REST Client and check the response as shown below: Now for the MUnit we will have to select the flow and right click on it and then select MUnit and then Create MUnit for that flow as shown below: This we will create an MUnit test suite, which will be present in src/test/munit as shown below: Now we have to Search for the Mock When that is in the mule palette. Below flow will receive an event triggered from flow test-mock-http-call-downstream-error and raise an error by Raise Error component and transform payload as expected for http error within On error continue component. In Mule 4, you can leverage DataWeave to mock your test code, either by creating DataWeave scripts or by using variables in a DataWeave module. This will create an MUnit test suite, which will be present in src/test/munit. You can mock a message processor and instruct it to throw an exception by using the throw-an message processor: https://docs.mulesoft.com/munit/v/1.2.0/mock-message-processor#defining-mock-response-exceptions. We will have to create a demo project for that in AnypointStudio as shown in the image below: And once the project is created, we will drag and drop an HTTP Listener from the mule palette and do its configuration as shown in the image below: Then we will add the database module in the palette and will drag and drop the SELECT component to the flow and do its configuration as shown below in the image: After selecting MySQL Connection configure and adding the Maven dependency as shown below in the image: After adding the dependency we will have to give the credentials to connect to the databaseServer, here I am using the. In such cases,we can mock the normal database connector behavior. The image above provides the processor as db:select and attribute as config-ref by looking into database configuration. Join the DZone community and get the full member experience. Its a perfect fit for a continuous integration/deployment environment. The Assert That event processor allows you to run assertions in order to validate the state of a Mule events content. Is a PhD visitor considered as a visiting scholar? nameis the name of attribute and it cannot be MEL expressions. The nature of simulating nature: A Q&A with IBM Quantum researcher Dr. Jamie We've added a "Necessary cookies only" option to the cookie consent popup. What is the purpose of this D-shaped ring at the base of the tongue on my hiking boots? You can only return the type of errors defined in the modules used by the current flow. Can I tell police to wait and call a lawyer when served with a search warrant? Surly Straggler vs. other types of steel frames. Is it suspicious or odd to stand by the gate of a GA airport watching the planes? MUnit is a Mule application testing framework that enables to formulate automated tests for mule integrations and API. View the coverage report to find out the test result report. Theoretically Correct vs Practical Notation. It will create MUnit tests in the folder src/test/munit of your Mule application. Site design / logo 2023 Stack Exchange Inc; user contributions licensed under CC BY-SA. The improvements made in Mule 4 make it easier to understand and improves performance scope of MuleSoft applications to perform at a higher operational scale with improved API connectivity. Are there tables of wastage rates for different fruit and veg? Opinions expressed by DZone contributors are their own. Connect and share knowledge within a single location that is structured and easy to search. Why do academics stay as adjuncts for years rather than move around? You can also use DataWeave functions and mappings to set the value attribute in the then-return element. The Mule 4 MUnit has been updated to rectify expression language and simplify management. Browse other questions tagged, Where developers & technologists share private knowledge with coworkers, Reach developers & technologists worldwide, How Intuit democratizes AI development across teams through reusability. Staging Ground Beta 1 Recap, and Reviewers needed for Beta 2, Configs loaded in Mule functional tests throw errors, but runs outside of a test, Mule module publish subscribe failed to read xsd path, Mule CRC32 Processor throws org.xml.sax.SAXParseException, MuleRequester deleting file after reading, Set HTTP Url Parameters for MUnit Mule Test, Mule / Maven Error: Invalid content was found starting with element 'dw:transform-message', ClassCastException when loading oauth2 access token from JdbcObjectStore. Asking for help, clarification, or responding to other answers. And in the main flow we can see it has has passed all the components as shown below: For generating the MUnit Test Report we will click the generate report as shown below: After clicking on the Generate Report the report will be given as shown below. rev2023.3.3.43278. By clicking Accept all cookies, you agree Stack Exchange can store cookies on your device and disclose information in accordance with our Cookie Policy. The Mock When processor allows you to mock an Event Processor when it matches the defined name and attributes. Thanks for contributing an answer to Stack Overflow! The Mock When processor enables you to mock an event processor when it matches the defined name and attributes. Search for theassert that in the mule palette. When configuring the then-return section in the mock-when, use the readUrl function to read the mapping file: The classpath-based URL uses the classpath: protocol prefix to find the file defined in src/test/resources. . MUnit is a Mule application testing framework that enables to formulate automated tests for mule integrations and API. Join the DZone community and get the full member experience. 4000Madison, WI 53718, 1255 Peachtree Parkway Suite #4201 Cumming, GA 30041, Spectrum Office Tower 11260Chester Road Suite 350 Cincinnati, OH 45246, 216 Route 206 Suite 22 Hillsborough Raritan, NJ 08844, 1 St. Clair Ave W Suite #902, Toronto, Ontario, M4V 1K6, Incor 9, 3rd Floor, Kavuri Hills Madhapur, Hyderabad 500033 India, H-110 - Sector 63 ,NOIDA , Gautham Budh Nagar , UP 201301. How Intuit democratizes AI development across teams through reusability. Below flow will execute and populate variables for error codes. This is the main flow where Munit is created for testing the application and this flow contains Http listener, MySQL database, Transform Message, logger and Set Payload. 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