You can re-use the function you create across your whole project. 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. The tests eecutes fine if i use maven command or run from runner file( .java). 1. Also note that you dont use @Karate.Test for the method, and you just use the normal JUnit 5 @Test annotation. id: '#regex[0-9]+', For suppressing sensitive information such as secrets and passwords from the log and reports, see Log Masking and Report Verbosity. The JS API has a karate.signal(result) method that is useful for involving asynchronous flows into a test. karate. 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. 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. If you are familiar with Cucumber (JVM), you may be wondering if you need to write step-definitions. 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. Bob,Wild 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. a JSON array). Why is there a voltage on my HDMI and coaxial cables? math Once you get a result, you typically use it to set global variables. predicate marker to validate that the value of totalPrice is always equal to the roomPrice of the first item in the roomInformation array. As a convenience, cookies from the previous response are collected and passed as-is as part of the next HTTP request. } And here is how cat-create.feature could look like: If you replace the table with perhaps a JavaScript function call that gets some JSON data from some data-source, you can imagine how you could go about dynamic data-driven testing. But you can choose a single test to run like this: When your Java test runner is linked to multiple feature files, which will be the case when you use the recommended parallel runner, you can narrow down your scope to a single feature, scenario or directory via the command-line, useful in dev-mode. Karate is quite flexible, and provides multiple options for you to evolve patterns that fit your environment, as you can see here: xml.feature. Do new devs get fired if they can't solve a certain bug? Karate is an open-source API test automation tool. } A Karate test script has the file extension .feature which is the standard followed by Cucumber. You can organize multiple common utilities into a single re-usable feature file as follows e.g. Since it is so easy to dive into Java-interop, Karate does not include any random-number functions, uuid generator or date / time utilities out of the box. function (config, downloadLatestFn) { Do note that when passing JSON, the default Map and List representations should suffice for most needs (see example), and using them would avoid un-necessary string-conversion. This is one reason why you may want to prefer a flat directory structure as explained above. mass This comes in useful . 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. id: 1, If you are looking for a way to do something only once per Feature, take a look at callonce. In such cases, you have to use string quotes: { 'Content-Type': 'application/json' }. Test data can be within the main flow itself, which makes scripts highly readable. You can also dynamically set multiple files in one step using multipart files. Conditionally making a test fail is easy with karate.fail(). Note that the path resets after any HTTP request is made but not the url. HTML form fields would be URL-encoded when the HTTP request is submitted (by the method step). EDIT: Karate now supports being able to use a line-number, for e.g. Allowed keystore types are as described in the, if all server certificates should be considered trusted. This can be a lot simpler than embedded expressions in many cases, and JavaScript programmers will feel right at home. Although all properties in the passed JSON-like argument are unpacked into the current scope as separate named variables, it sometimes makes sense to access the whole argument and this can be done via __arg. And includes a set of Karate examples that test these services as well as demonstrate various Karate features and best-practices. We suggest that you have a folder hierarchy only one or two levels deep - where the folder names clearly identify which resource, entity or API is the web-service under test. Now, lets continue with the variables in Karate. When JavaScript executes in Karate, the built-in karate object provides some commonly used utility functions. In fact it may be a good idea to slip doubles instead of integers into some of your tests ! Assuming the above code is in a file called my-headers.js, the next section on calling other feature files shows how it looks like in action at the beginning of a test script. Karate is built on top of Cucumber, another BDD testing framework, and shares some of the same concepts. The responseCookies variable is set upon any HTTP response and is a map-like (or JSON-like) object. 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. (with no space in between). Note that the parallel runner will run Scenario-s in parallel, which means they can run in any order. So you could have also done something like: Also refer to the configure keyword on how to switch on pretty-printing of all HTTP requests and responses. You cant do things such as * url 'http://foo.bar' and expect the URL to be set in the called feature. To learn more, see our tips on writing great answers. For example: While the tag does not need to be in the @key=value form, it is recommended for readability when you start getting into the business of giving meaningful names to your Scenario-s. Also see type conversion. Note that a single JS function is sufficient to transform a given JSON object into a completely new one, and you can use complex conditional logic if needed. Everything to the right of the assert keyword will be evaluated as a single expression. Windows: Ctrl+R+A. This is great for testing boundary conditions against a single end-point, with the added bonus that your test becomes even more readable. feature file from your Java IDE, you just need the following empty test-class in the same package. Both the official Visual Studio Code and IntelliJ plugins support step-through debugging of Karate tests. So in dev mode you can easily set this behavior like this. Note the inline use of the read function as a short-cut above. There are two things that can happen to the returned value. The function argument is the row-index, so you can easily determine when to stop the generation of data. One pattern you can adopt is to create a factory method that returns a Java function - where you can easily delegate to the logic you want. 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. lastUpdated: { on: "#ignore" }, These examples (all exact matches) can make things more clear: Note that you can alternatively use JsonPath on the left-hand-side: But of course it is preferable to match whole objects in one step as far as possible. The karate-chrome Docker is an image created from scratch, using a Java / Maven image as a base and with the following features: Chrome in "full" mode (non-headless) Chrome DevTools protocol exposed on port 9222. An additional-level of auto-conversion happens when objects cross the boundary between JS and Java. Refer to your IDE documentation for how to run a JUnit class. 2. Set its name to "Karate tests". But this totally makes sense for things not part of the main test flow and which typically need to be re-usable anyway. The not equals operator != works as you would expect: You typically will never need to use the != (not-equals) operator ! Given this custom, user-defined Java class: This is how it can be called from a test-script via JavaScript, and yes, even static methods can be invoked: Note that JSON gets auto-converted to Map (or List) when making the cross-over to Java. Karate Demo. It begins with the Feature keyword, followed by the . You could get by by renaming the file-extension to say *.txt but an alternative is to use the karate.readAsString() API. # this next line may perform many steps and result in multiple variables set for the rest of the script, """ For manipulating or updating JSON (or XML) using path expressions, refer to the set keyword. It is worth taking a few minutes to go through the documentation and examples here: JsonPath Examples. This roughly corresponds to a cURL argument of -F @myFile=test.pdf. subType: { name: 'Smith', deleted: false } You can run tests with this directly, but teams can choose the JUnit variant (shown below) that pulls in JUnit 5 and slightly improves the in-IDE experience. kittens: [ var foo = function(v){ return v * v }; There should always be karate-config.js in the root folder, even if you dont have any common config. Easy to create a framework. !contains deep is not yet supported, please contribute code if you can. Also take a look at how a special case of embedded-expressions can remove key-value pairs from a JSON (or XML) payload: Remove if Null. """, """ } return sdf.parse(s).time; // '.getTime()' would also have worked instead of '.time' Also see this thread. The problem is, I want to use other config values as shown here but when I run the test, it fails to access config.ApiKey correctly. When the level is DEBUG the entire request and response payloads are logged. OR: To run every feature that has either of the @F1 and @F2 tags (runs both) {@F1,@F2}, Combining OR and AND: To run feature that has either of @F1,@F2,@F3 tags but not @F4 tag. 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. Some XPath expressions return a list of nodes (instead of a single node). Some characters such as the hyphen - are not permitted in lenient JSON keys (because they are interpreted by the JS engine as a minus sign). This capability is triggered when the table consists of a single cell, i.e. To test a specific feature in karate I run: mvn test -Dkarate.options="classpath:myfeature.feature". If you dont want to use Java, you have the option of just downloading and extracting the ZIP release. Expressions are evaluated using the embedded JavaScript engine. They can be very useful in some situations. Background: We use it for defining variables that will be used in the particular .feature file and will be used by all the requests in the feature file. any valid JavaScript expression, and variables can be mixed in, another example: equivalent to the above, JavaScript function invocation, Pretty print the request payload JSON or XML with indenting (default, Pretty print the response payload JSON or XML with indenting (default. Karate has built-in support for re-trying an HTTP request until a certain condition has been met. } The default is 30000 (30 seconds). In situations where you start an (embedded) application server as part of the test set-up phase, a typical challenge is that the HTTP port may be determined at run-time. The first argument to karate.callSingle() is used as the cache key. function(arg) { status: '#number? It is worth internalizing that during test-execution, it is upon the method keyword that the actual HTTP request is issued. The Hello World is a great example of REST-ful use of the url when the test focuses on a single REST resource. 'test1.feature', * def result = responseStatus == 404 ? Run Karate Test. Soumendra Daas has created a nice example and guide that you can use as a reference here: hello-karate. The most important feature of Karate isno coding. Either - it can be assigned to a variable like so. return 'this text will be displayed above the image comparison config\n' + customConfigJson # but using karate.range() you can even do this ! It is also possible to invoke a feature file via a Java API which can be useful in some test-automation situations. In such cases, the function can do nothing or return an empty JSON. The match syntax involves a double-equals sign == to represent a comparison (and not an assignment =). A good example of the use of form field for a typical sign-in flow is this OAuth 2 demo: oauth2.feature. Empty cells or expressions that evaluate to null will result in the key being omitted from the JSON. Normally in dev mode, you will use your IDE to run a *.feature file directly or via the companion runner JUnit Java class.