You usually wont need this, but the second-last line above shows how the karate object can be used to evaluate JsonPath if the filter expression depends on a variable. When your project gets complex, you can have separate karate-config-
.js files that will be processed for that specific value of karate.env. For e.g. Note that the karate-config.js is re-processed for every Scenario and in rare cases, you may want to initialize (e.g. Until now, I have shown you run your test cases directly on feature files. Since this is a frequently asked question, the different ways of being able to re-use code (or data) are summarized below. Heres how it works for XML: This comes in useful in some cases - and avoids needing to use the set keyword or JavaScript functions to manipulate JSON. After you define the URL, you need to define a path to send a request. To run a script *.feature file from your Java IDE, you just need the following empty test-class in the same package. This is easily achieved with the karate.repeat() API: And theres also karate.range() which can be useful to generate test-data. { Note that Karate works fine on OpenJDK. if you want to conditionally stop a test with a descriptive error message, e.g. A set of real-life examples can be found here: Karate Demos. Something like this: For HTTPS / SSL, you can also specify a custom certificate or trust store by setting Java system properties. It is best explained via examples. Given the examples above, it has to be said that a best practice with Karate is to avoid JavaScript for loops as far as possible. Also refer to the eval keyword for a simpler way to execute arbitrary JavaScript that can be useful in some situations. There is no concept of a default where for e.g. Note that the parallel runner will run Scenario-s in parallel, which means they can run in any order. """, # attempt to detect and ignore antialiasing, # customize color / brightness tolerances, # switch to `original` grayscale SSIM algorithm, # JS math can introduce a decimal point in some cases, # but you can easily coerce to an integer if needed, # or you can do the same on multiple lines if you wish, # set headers or params (if any) BEFORE the method step. Refer to this demo feature for an example: kitten-create.feature. Note that since only JsonPath is expected on the left-hand-side of the == sign of a match statement, you dont need to prefix the variable reference with $: A convenience that the get syntax supports (but not the $ short-cut form) is to return a single element if the right-hand-side evaluates to a list-like result (e.g. After "@" you can have any relevant . """, """ So in dev mode you can easily set this behavior like this. Create util.DbUtils java class and add the following java code snippet. Because of how easy it is to set HTTP headers, Karate does not provide any special keywords for things like the Accept header. None of the examples in the documentation use the $varName form on the LHS, and this is the recommended best-practice. The extension of the feature file is " .feature ". And there is no more worrying about Maven profiles and whether the right *.properties file has been copied to the proper place. var sdf = new SimpleDateFormat("yyyy-MM-dd'T'HH:mm:ss.SSSZ"); Click on Run the Workflow and Start. The name of the class doesn't matter, and it will automatically run any *.feature file in the same package. { id: 23, name: 'Bob' }, Karates callonce keyword behaves exactly like call but is guaranteed to execute only once. You can then skip the next few sections, as the pom.xml, recommended directory structure, sample test and JUnit 5 runners - will be created for you. The function has to return a JSON object. You can use callonce instead of call within the Background in case you have multiple Scenario sections or Examples. You can also re-use other *.feature files from test-scripts: When a called feature depends on some side-by-side resources such as JSON or JS files, you can use the this: prefix to ensure that relative paths work correctly - because by default Karate calculates relative paths from the root feature or the top-most caller. Ex- headers. JSON objects become Java Map-s, JSON arrays become Java List-s, and Java Bean properties are accessible (and update-able) using dot notation e.g. Karate is a great fit for testing GraphQL because of how easy it is to deal with dynamic and deeply nested JSON responses. { In This video explained how to set up the runner class so that the parallel execution is possible Follow me on LlinkedIn - https://www.linkedin.com/in/krishn. Here below is an example jbang script that uses the Karate Java API to do some useful work. Note that it is a map of lists so you will need to do things like this: And just as in the responseCookies example above, you can use match to run complex validations on the responseHeaders. And since you can easily extend Karate using JavaScript, there is no need to compile Java code any more. ] Here is a good example in the demos: dynamic-params.feature, The single JSON argument needs to be in the form { field1: { read: 'file1.ext' }, field2: { read: 'file2.ext' } } where each nested JSON is in the form expected by multipart file. """, """ For JUnit 5 you can omit the public modifier for the class and method, and there are some changes to import package names. For JSON, you can also use the JS delete operator via eval, useful when the path you are trying to mutate is dynamic. if an API needs to be called to get a JSON array, you can call a separate Scenario to set up this data. This example actually calls into existing Java code, and being able to do this opens up a whole lot of possibilities. So you get the picture, any kind of complicated sign-in flow can be scripted and re-used. Instead of using call (or callonce) you are always free to call JavaScript functions normally and then you can use more than one argument. The limitation of the Cucumber Scenario Outline: (seen above) is that the number of rows in the Examples: is fixed. Feature: We use it to identify the feature file and give it a small title or a one line definition. Calling a feature file from another file. In This video explained how to call one feature file from another feature file by using the call and read functions. Refer to the demos for another example: soap.feature. To make dynamic data-driven testing easier, the following keywords also exist: params, headers, cookies and form fields. In rare cases you may need to set a variable from this routine, and a good example is to make the generated UUID visible to the currently executing script or feature. """, """ """, # yaml from a file (the extension matters), and the data-type of 'bar' would be JSON, """ # this next line may perform many steps and result in multiple variables set for the rest of the script, """ And for dealing with binary content - see bytes. predicate marker to validate that the value of totalPrice is always equal to the roomPrice of the first item in the roomInformation array. Internally, Karate will auto-convert JSON (and even XML) to Java Map objects. This is optional, and Karate will work without the logging config in place, but the default console logging may be too verbose for your needs. get metadata about the currently executing feature within a test, functional-style filter operation useful to filter list-like objects (e.g. But you will never need to worry about this internal data-representation most of the time. In the feature file, we assert for HTTP response code 201. If you really need to have an empty body, you can use an empty string as shown below, and you can force the right Content-Type header by using the header keyword. Scenario: creating a repo and verifying the response * path '/user/repos' #Change the repo_name . And when you read your JSON objects from (re-usable) files, even complex response payload assertions can be accomplished in just a single line of Karate-script. Karate has the following short-cut symbols designed to be mixed into embedded expressions: For completeness, == and != also belong in the above list. Note that for. Note that this example only does a string equals check on parts of the JSON, but with Karate you are always encouraged to match the entire payload in one step. 1 How to run a specific feature file in Karate? You can use print to log variables to the console in the middle of a script. It is worth mentioning that to do the equivalent of the last line in Java, you would typically have to traverse 2 Java Objects, one of which is within a list, and you would have to check for nulls as well. Add an automation story in BDD syntax. ; OpenAPI Generator that generates: . Also note how you can wrap the LHS of the match in parentheses in the rare cases where the parser expects JsonPath by default. Ideally you should return only pure JSON data (or a primitive string, number etc.). Karate is the only open-source tool to combine API test-automation, mocks, performance-testing and even UI automation into a single, unified framework. Karate has a set of Java API-s that expose the HTTP, JSON, data-assertion and UI automation capabilities. 2. input: Finally, using karate.response.header(name) can be simpler to just get a header value string by name, and it will ignore-case for the name passed as the argument: You would normally only need to use the status keyword. Note that the set (multiple) keyword can build complex, nested JSON (or XML) from scratch in a data-driven manner, and you may not even need to read from files for many situations. Instead you would typically use the match keyword, that is designed for performing powerful assertions against JSON and XML response payloads. in just one extra line you can save the value of karate.prevRequest and pass it around. You can even initialize the JSON in a separate step and pass it by name, especially if it is complex. If you dont pass a handler (or it is null), the first message is returned. Here is a sample logback-test.xml for you to get started. did the function invocation return a map-like (or JSON) object ? Karate does not attempt to have tests be in natural language like how Cucumber tests are traditionally expected to be. Karate gives us lots of options to work with data. See also responseStatus if you want to do some complex assertions against the HTTP status code. But there are cases where you need to take custom actions like saving a response to a file, file reading or writing, etc. Native data types mean that you can insert them into a script without having to worry about enclosing them in strings and then having to escape double-quotes all over the place. If you have to set a bunch of deeply nested keys, you can move the parent path to the top, next to the set keyword and save a lot of typing ! If your XPath is dynamic and has to be formed on the fly perhaps by using some variable derived from previous steps, you can use the karate.xmlPath() helper: You can refer to this file (which is part of the Karate test-suite) for more XML examples: xml-and-xpath.feature. To force a null value, wrap it in parentheses: An alternate way to create data is using the set multiple syntax. If you want to use JUnit 4, use karate-junit4 instead of karate-junit5. Run Karate Test. You can use karate.abort() like so: Using karate.abort() will not fail the test. While $ always refers to the JSON root, note the use of _$ above to represent the current node of a match each iteration. Embedded expressions also make more sense in validation and schema-like short-cut situations. bottom: 893, note that this cannot be dynamic (with in-line variables) so. #string Here are some example assertions performed while scraping a list of child elements out of the JSON below. } The most important feature of Karate is no coding. Since Karate uses Gherkin, you can also employ data-driven techniques such as expressing data-tables in test scripts. The placeholder format defaults to angle-brackets, for example: . """, # given this invalid input (string instead of number), # but this 'combined form' will fail, which is what we want, # * match date == { month: '#number? When expressing expected results (in JSON or XML) you can mark some fields to be ignored when the match (comparison) is performed. It begins with the Feature keyword, followed by the . How can we prove that the supernatural or paranormal doesn't exist? The above code reads a template which is in location com/example/templates/idm/idm-create-user-template.json and stores it as a JSON variable called myReq Then we can send the JSON variable to the other feature file using the call method. Calling a feature file from another file. The .graphql and .gql extensions are also recognized (for GraphQL) but are handled the same way as .txt and treated as a string. entityState: "ACTIVE" If you get stuck and ask a question on Stack Overflow, make sure you provide a cURL command that works - or else it would be very difficult for anyone to troubleshoot what you could be doing wrong. JavaScript Functions are also native. For easy readability, some information is presented by the Karate Framework in the console, whenever the Test execution is completed. Observe the usage of Scenario Outline: instead of Scenario:, and the new Examples: section. If you are looking for ways to do something only once per feature or across all your tests, see Hooks. The above example can be made more simpler with the use of call (or callonce) without a def-assignment to a variable, and is the recommended pattern for implementing re-usable authentication setup flows. karate-chrome. An advanced option is where the scenario expression returns a JavaScript generator function. you can use pure JsonPath expressions (notice how this is different from the above), # and even append to json arrays (or create them automatically), # and for match - the order of keys does not matter, # you can ignore fields marked with '#ignore', # you can even set whole fragments of xml, """ This is useful in any situation where you need to concatenate dynamic string fragments to form content such as GraphQL or SQL. But since some-reusable.feature is above AnimalsTest.java in the folder hierarchy, it will not be picked-up. Behavior Driven Development (BDD) is an approach to development and testing, when special attention is paid to product behavior in business terms. And the JSON will still be well-formed, and editable in your IDE or text-editor. There are examples of calling JVM classes in the section on Java Interop and in the file-upload demo. Allowed keystore types are as described in the. This mechanism works by calling configure cookies behind the scenes and if you need to stop auto-adding cookies for future requests, just do this: Also refer to the built-in variable responseCookies for how you can access and perform assertions on cookie data values. You can easily assign the whole response (or just parts of it using Json-Path or XPath) to a variable, and use it in later steps. What is the point of Thrower's Bandolier? But you can suffix a ?name to the feature to de-dupe it, like so: Now adminResponse and userResponse will be different, even though the same feature file is being used for a callSingle(). Also note that ; charset=UTF-8 would be appended to the Content-Type header that Karate sends by default, and in some rare cases, you may need to suppress this behavior completely. karate.set('temp', squares); This can be done via the maven-surefire-plugin configuration. Create a feature file under src/test/resources. This is rarely used, unless you are expecting binary content returned by the server. function (customConfigJson, config) { EDIT: Karate now supports being able to use a line-number, for e.g. Type the following commands: mvn spring-boot:run & mvn test -Dtest=KarateTests. This can be convenient if a particular call results in a huge response payload. Conditionally making a test fail is easy with karate.fail(). Refer to conditional logic for more ideas. As well as being a great voice for video games, animation and films, I've now added MoCap training to my bow - and am currently in full Motion Capture training with the Mocap Vaults. name,type So if you take the previous folder structure example, you can do this on the command-line: Here, AnimalsTest is the name of the Java class we designated to run the multiple *.feature files that make up your test-suite. Here is an example: Any Karate variable will be available to the template, which is users.html in this example. But normally a match statement is preferred unless you want a really descriptive error message. This will always hold the contents of the response as a byte-array. What is even more interesting is that expressions can refer to variables: And functions work as well ! JSON / arrays), see, executes an OS command, but forks a process in parallel and will not block the test like, for advanced conditional logic for e.g. JsonPath filter expressions are very useful for extracting elements that meet some filter criteria out of arrays. Use this for building multipart named (form) field requests. subType: It is actually a transpose of the table approach, and can be very convenient when there are a large number of keys per row or if the nesting is complex. Not the answer you're looking for? name: John Only one JSON argument is allowed, but this does not limit you in any way as you can use any complex JSON structure. Billie Of course the actual time-durations, and logs will be missing, and everything will pass. Staging Ground Beta 1 Recap, and Reviewers needed for Beta 2. Another example for a popular Maven reporting plugin that is compatible with Karate JSON is Cluecumber. "a": 1, We recommend that you use the Karate extension for Visual Studio Code - and with that, JavaScript, .NET and Python programmers will feel right at home. Later, in the runner file, we can decide which specific tag (and so as the scenario (s)) we want Cucumber to execute. One of these is the use of a Gherkin file, which describes the tested feature. This has the advantage that you can use pure JsonPath and be more concise. The recipe for doing this when running Maven from the command line is: You can refer to the documentation of the Maven Surefire Plugin for alternate ways of achieving this, but the argLine approach is the simplest and should be more than sufficient for your Continuous Integration or test-automation needs. But take a look at how Karate can loop over a *.feature file for each object in a JSON array - which gives you dynamic data-driven testing, if you need it. The business of web-services testing requires access to low-level aspects such as HTTP headers, URL-paths, query-parameters, complex JSON or XML payloads and response-codes. Annotate the test with the . Refer to the cats-java.feature demo for an example. If you are behind a corporate proxy, or especially if your local Maven installation has been configured to point to a repository within your local network, the command below may not work. And if you do this within a Background: section, it would apply to all Scenario: sections within the *.feature file. If youre looking for more complex ways of dynamically naming your scenarios you can use JS string interpolation by including placeholders in your scenario name. input: { When handling XML, you sometimes need to call XPath functions, for example to get the count of a node-set. And you can easily assert that the data is as expected by comparing it with another JSON or XML object. UI for debugging the Test. The match keyword is explained later, but it should be clear right away how convenient the table keyword is. all Karate tool provides you with the step definitions. name: 'John', Note that url and request are not allowed as variable names. The results of the first call are cached, and any future calls will simply return the cached result instead of executing the JavaScript function (or feature) again and again. This is super-useful for re-use and data-driven tests. A few points to note: Note that only variables and configuration settings will be passed. Set the read timeout (milliseconds). This is preferred because it takes care of situations such as if the value is undefined in JavaScript. } We can define each scenario with a useful tag. The retry keyword is designed to extend the existing method syntax (and should appear before a method step) like so: Any JavaScript expression that uses any variable in scope can be placed after the retry until part. Note how even tags to exclude (or include) can be specified: Note that any Feature or Scenario with the special @ignore tag will be skipped by default. Keywords such as set and remove allow you to to tweak payload-data to fit the scenario under test. As a short-cut, when running JsonPath expressions - $ represents the response. Each item within responseCookies is itself a map-like object. My karate config file is calling a feature file which in turn is calling a JAVA file to get the user name of machine to set some conditions. _ > 0'. Only recommended for advanced users, but this guarantees a routine is run only once, even when running tests in parallel. The rest can also be used even in primitive data matches like so: If two cross-hatch # symbols are used as the prefix (for example: ##number), it means that the key is optional or that the value can be null. Refer to the demo karate-config.js for an example and how the demo.server.port system-property is set-up in the test runner: TestBase.java. odd: '#(oddSchema)', EXPR in the table above is an interesting one. Provides supports for the Data Driver Testing that is built in-house, hence no need to depend on external frameworks. to avoid constant failures due to loading animations), """ If a few steps in your flow need to temporarily change (or completely bypass) the currently-set header-manipulation scheme, just update configure headers to a new value (or set it to null) in the middle of a script. If you want to use JUnit 4, use the karate-junit4 Maven dependency instead of karate-junit5 . Standard JavaScript syntax rules apply, but the right-hand-side should begin with the function keyword if declared in-line. In the feature below, the * print 'in setup' step will run only once. A Karate test script has the file extension .feature which is the standard followed by Cucumber. There is only one thing you need to do to switch the environment - which is to set a Java system property. And with Karate expressions, you can dive into JavaScript without needing to define a function - and conditional logic is a good example. The syntax will include a = sign between the key and the value. Note that the parser is lenient so that you dont have to enclose all keys in double-quotes. Ideally it should return pure JSON and note that you always get a deep clone of the cached result object. Normally an undefined variable results in nasty JavaScript errors. You can replace the values of com.mycompany and myproject as per your needs. Multi-values are supported the way you would expect (e.g. A very useful behavior when you combine the optional marker with an embedded expression is as follows: if the embedded expression evaluates to null - the JSON key (or XML element or attribute) will be deleted from the payload (the equivalent of remove). countryId: '#number', A JavaScript function or Karate expression at runtime has access to a utility object in a variable named: karate. odds: '#[] oddSchema' If you find yourself struggling to write dynamic JsonPath filters, look at karate.filter() as an alternative, described just below. Do roots of these polynomials approach the negative of the Euler-Mascheroni constant? will pause the test execution until a socket connection (even HTTP, currently for web-ui automation only, see. This report is useful for troubleshooting and debugging a test because all requests and responses are shown in-line with the steps, along with error messages and the output of print statements. We will use karate.properties [user.dir] which will automatically pick users working directory and then append it to the path of our project files. Yes, you can via tags: https://github.com/intuit/karate#tags. A typical need would be to perform a sign in, or create a fresh user as a pre-requisite for the scenarios being tested. EDIT: Karate now supports being able to use a line-number, for e.g. Use the classpath: prefix to load from the classpath instead. You are free to organize your files using regular Java package conventions. top: 483, Also note that match contains any is possible for JSON objects as well as JSON arrays. Note that forcing Scenario-s to run in a particular sequence is an anti-pattern, and should be avoided as far as possible. $ represents the response. There may be cases where you want to suppress this to make the reports lighter and easier to read. Now I can dynamically able to select the list of features at run time :) Regarding the karate.abort() Now the result for the particular step is marked as 'SKIPPED', but the results for the steps below it still shown as 'PASSED'. If you really need to re-use a Java function, see Java Function References. }] In fact, this is the mechanism used when karate-config.js is processed on start-up. And if you need multiple functions, you can easily organize them into a single Java class with multiple static methods. Here is an example of an implementation. The feature file is an entry point, to write the cucumber tests and used as a live document at the time of testing. You can re-use the function you create across your whole project. This is a core feature and does not depend on JUnit, Maven or Gradle. This means that all your. Karate can run tests in parallel, and dramatically cut down execution time. The main island is separated from Peninsular Malaysia to the north by Johor Strait, a narrow channel crossed by a . If you find yourself juggling multiple tags with logical AND and OR complexity, refer to this Stack Overflow answer. """, # * match cat == { name: '#ignore', type: '#regex . if there is no matching tag - that the Examples without a tag will be executed. * url myUrl. REST-style path parameters. Also note that you can run a scenario by name, for e.g. This means that as long as the token on file is valid, you can save time by not having to make the one or two HTTP calls needed to sign-in or create throw-away users in your SSO store. When using stand-alone *.js files, you can have a comment before the function keyword, and you can use fn as the function name, so that your IDE does not complain about JavaScript syntax errors, e.g. You could always do this in two steps: As a convenience, embedded expressions are supported on the Right Hand Side of a match statement even for quoted string literals: And do note that in Karate 1.0 onwards, ES6 string-interpolation within backticks is supported: An alternative to embedded expressions (for JSON only) is to enclose the entire payload within parentheses - which tells Karate to evaluate it as pure JavaScript. bar: 'world' You can change the com.intuit.karate logger level to INFO to reduce the amount of logging. an initial 'sign-in' that retrieves some secure tokens, every subsequent. If a handler function (returning a boolean) is provided - it will be used to complete the listen wait if true is returned. Especially when payloads are complex (or highly dynamic), it may be more practical to use contains semantics. Try this especially if you dont have much experience with programming or test-automation. Is there a way to run a single scenario defined into a feature? mvn test -Dkarate.options="classpath:myfeature.feature --name ^first$" And if you use IntelliJ - you can right click and do the above. More examples are available that showcase various ways of parameter-izing and dynamically manipulating SOAP requests in a data-driven fashion. "hotels": [ #(lang)#(user), """ If you read from a file, the advantage is that multiple scripts can re-use the same data. The name of the class doesnt matter, and it will automatically run any *. The csv and yaml types can be initialized in-line using the triple quote or docstring multi-line approach as shown here. Requirement: Open a feature file in VSCode Editor and ensure a line associated with a test has cursor focus. Create a new job using the +Add new job link. Do note that if you prefer a pure Java API - Karate has that covered, and with far more capabilities. When re-running tests in development mode and when your test suite depends on say an Authorization header set by karate.callSingle(), you can cache the results locally to a file, which is very convenient when your auth token is valid for a period of a few minutes - which typically is the case.