karate framework for ui automation

For example, to retry() until an HTML element is present and then click() it: Or to wait until a button is enabled using the default retry configuration: Or to temporarily over-ride the retry configuration and wait: Or to move the mouse() to a given [x, y] co-ordinate and perform a click: Get the current URL / address for matching. And with Karate expressions, you can dive into JavaScript without needing to define a function - and conditional logic is a good example. When handling XML, you sometimes need to call XPath functions, for example to get the count of a node-set. That said, there is some benefit to re-use of just locators and Karates support for JSON and reading files turns out to be a great way to achieve DRY-ness in tests. When you have a runner class in place, it would be possible to run it from the command-line as well. More examples of Java interop and how to invoke custom code can be found in the section on Calling Java. So instead of doing this: You should prefer this form, which is more readable: Note that to navigate to a new address you can use driver - which is more concise. When using a browser-driver, a call in shared scope has to be used. In below image we can see I have created feature file. The DockerTarget implementation has an example and you can find more details here. # the step that immediately follows the above would typically be: * def putOrPost = (someVariable == 'dev' ? And you can perform conditional / cross-field validations and even business-logic validations at the same time. } In some rare cases, for e.g. Here are some examples: Take a look at how to loop and transform data for more ideas. If you want to use JUnit 4, use karate-junit4 instead of karate-junit5. 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. There should always be karate-config.js in the root folder, even if you dont have any common config. 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. Note the use of the JavaScript String.includes() function to do a text contains match for convenience. You can re-use the function you create across your whole project. Since the karate object is injected within karate-config.js on start-up, it is a simple and effective way for other processes within the same JVM to pass configuration values to Karate at run-time. Keep in mind that you should be able to comment-out a Scenario or skip some via tags without impacting any others. """, # note the 'text' keyword instead of 'def', """ Valid options are, The number of bits used to encode each pixel, The maximum size on the smallest dimension before downsampling. }, When using call (or callonce), only one argument is allowed. This example actually calls into existing Java code, and being able to do this opens up a whole lot of possibilities. As a convenience, you can call a tag directly, which is a short-cut to call another Scenario within the same feature file. Any valid JavaScript expression that evaluates to a Truthy or Falsy value is expected after the #?. They seamlessly fit in-line within your test script. Karate has a very useful payload templating approach. This does require you to move set-up into a separate *.feature (or JavaScript) file. You can use karate.abort() like so: Using karate.abort() will not fail the test. This method returns a boolean (true or false), perfect for asserting if an element exists and giving you the option to perform conditional logic, or manually fail the test. So especially when doing above() or below(), ensure that the search path is aligned the way you expect. The Cucumber JSON format can be also emitted, which gives you plenty of options for generating pretty reports using third-party maven plugins. You can imagine how this greatly simplifies setting up tests for boundary conditions. Some XPath expressions return a list of nodes (instead of a single node). The recommendation is that you prefer chrome for development, and once you have the tests running smoothly - you can switch to a different WebDriver implementation. The above example can be re-factored in a very elegant way as follows, using Karates native support for JavaScript: The great thing here is that the innnerText() function can be defined in a common feature which all your scripts can re-use. Refer to the documentation on type-conversion to make sure you can unpack data returned from Karate correctly, especially when dealing with XML. But guess what - this example is baked into a Karate API, see waitForText(). You can even perform a conversion from XML to JSON if you want. The standard locator syntax is supported. You can skip this section and jump straight to the Syntax Guide if you are in a hurry to get started with Karate. You could get by by renaming the file-extension to say *.txt but an alternative is to use the karate.readAsString() API. Since this is a frequently asked question, the different ways of being able to re-use code (or data) are summarized below. "c": 3 The Background is optional. Of course, resorting to a sleep in a UI test is considered a very bad-practice and you should always use retry() instead. results : null; { For example: Normally you would use text() to do the above, but you get the idea. odd: '#(oddSchema)', Especially when payloads are complex (or highly dynamic), it may be more practical to use contains semantics. UI API Automation Tester. 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. If the request is for /api/*, the first Scenario matches - else the last one is a catch all. Any Karate expression can be used in the cell expression, and you can even use Java-interop to use external data-sources such as a database. Here is an example which also demonstrates how you could assert for expected values in the response XML. You can find more details here. Think of it as just like waitFor() but without the wait part. (with no space in between). Variables can be referred to within JSON, for example: So the rule is - if a string value within a JSON (or XML) object declaration is enclosed between #( and ) - it will be evaluated as a JavaScript expression. Refer to the section on JsonPath short-cuts for a deeper understanding of named JsonPath expressions in Karate. In the post request, instead of giving hard coded value we can give the variable and this is done by embedded expression. You simply roll your own. Here are the rules Karate uses on bootstrap (before every Scenario or Examples row in a Scenario Outline): Advanced users who build frameworks on top of Karate have the option to supply a karate-base.js file that Karate will look for on the classpath:. Karate has a set of Java API-s that expose the HTTP, JSON, data-assertion and UI automation capabilities. Rarely used, but sometimes for only some parts of your test - you need to tell the browser to wait for a very slow loading page. Embedded expressions also make more sense in validation and schema-like short-cut situations. But this time, the return value from the call step will be a JSON array of the same size as the input array. The $varName form is used on the right-hand-side of Karate expressions and is slightly different from pure JsonPath expressions which always begin with $. 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. One limitation is that you cannot use double-quotes within these expressions, so stick to the pattern seen below. Though not really recommended, you can have multiple Scenario-s within a Feature tagged with @setup. This turns out to be very useful in practice, and this particular match jsonArray contains '#(^partialObject)' form has no in-line equivalent (see the third-from-last row above). A common requirement is to build an array with n elements or do something n times where n is an integer (that could even be a variable reference). Karate is the only open-source tool to combine API test-automation, mocks, performance-testing and even UI automation into a single, unified framework. In below image in get demo 4 scenario I have added few assertions. Typical symptoms are your tests working fine via the IDE but not when running via Maven or Gradle. The first four below are best explained in this example file: type-conv.feature. Note how we can even serve an image with the right Content-Type header. can be specified like this: A special variable called Key will be available and you can see all the possible key codes here. ] Karate UI automation, is it possible to make locators dynamic. The name of the SOAP action specified is used as the SOAPAction header. This means that all your. The BDD syntax that Cucumber has gone on to popularize is language-neutral, which makes it easy for nonprogrammers as well. The method signature of the assertTrue has flipped around a bit. You can also use driver.startRecordingScreen() and driver.stopRecordingScreen(), and both methods take recording options as JSON input. "arr": [ Test Automation | Karate Labs Open-source test automation solution used by 42 of the Fortune 500 companies. In such cases, you can always fall-back to a waitForUrl() or a more generic waitFor(). Save my name, email, and website in this browser for the next time I comment. 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. Dont forget that Karates data-driven testing capabilities can loop over arrays of JSON objects automatically. For example if you have HTML like this: To click on the checkbox, you just need to do this: By default, the HTML tag that will be searched for will be input. ", Karate will wrap the function for you ! to customize rebase filename and/or output), Function to be called when displaying image comparison configuration in Karate HTML reports (e.g. For JSON, you can also use the JS delete operator via eval, useful when the path you are trying to mutate is dynamic. Karate tool was developed by Peter Thomas in 2017. # if the expression begins with "_" or "! In rare cases, you may want to check what the type of the response is and it can be one of 3 different values: json, xml and string. Enable HTTPS calls without needing to configure a trusted certificate or key-store. But you can prefix the name with classpath: in which case the root folder would be src/test/java (assuming you are using the recommended folder structure). Here is how the example above looks like: Validation can be performed if needed on the response to this HTTP POST which may be HTML, and the karate.extract() API may come in useful. Also see this explanation. If Chrome is not installed in the default location, you can pass a String argument like this: For more control or custom options, the start() method takes a Map argument where the following keys (all optional) are supported: Only supported for driver type chrome. { A variation where the argument is JSON instead of a URL / address-string, used typically if you are testing a desktop (or mobile) application. Note that the mvn test command only runs test classes that follow the *Test.java naming convention by default. And path blog?page=2. Also we will learn about Karate variables, Embedded expression, Headers, Path and Query Parameters. Note that this mode can be also triggered via the command-line by adding -D or --dryrun to the karate.options. A common use case is to mix API-calls into a larger test-suite, for example a Selenium or WebDriver UI test. And then you would use the built-in driver JS object for all other operations, combined with Karates match syntax for assertions where needed. But normally a match statement is preferred unless you want a really descriptive error message. mass The function is expected to return a JSON object and all keys and values in that JSON object will be made available as script variables. A few points to note: Note that only variables and configuration settings will be passed. predicate marker to validate that the value of totalPrice is always equal to the roomPrice of the first item in the roomInformation array. Modifying existing JSON and XML is natively supported by Karate via the set keyword, and replace is primarily intended for dealing with raw strings. Karate supports the following functional-style operations via the JS API - karate.map(), karate.filter() and karate.forEach(). before you fire the method. id: 1, And this happens to work as expected for JSON object keys as well: This modifies the behavior of match contains so that nested lists or objects are processed for a deep contains match instead of a deep equals one which is the default. See below screenshot I have created new put feature file and written Put method for updating employee name. To create paginated pdf document from the page loaded. Here is a summary of what the different shapes mean in Karate: There is no need to prefix variable names with $ on the left-hand-side of match statements because it is implied. This means that you cannot use any Karate JS objects or API-s such as karate.get() or driver.title. But sometimes it is un-avoidable, for example to wait for animations to render - before taking a screenshot. 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. Also refer to this demo example for a working example of multipart file uploads: upload.feature. Combined with Docker, headless Chrome and Karates parallel-execution capabilities - this simple start() and stop() lifecycle can effectively run web UI automation tests in parallel on a single node. Also note that locate() and locateAll() can be called on an Element, so that the search scope is limited to that Element and its children. Also note how you can wrap the LHS of the match in parentheses in the rare cases where the parser expects JsonPath by default. there is exactly one row and one column in the table. When JavaScript executes in Karate, the built-in karate object provides some commonly used utility functions. You can set this up for all subsequent requests or dynamically generate headers for each HTTP request if you configure headers. And if you need to view the container display via VNC, set the vncPort to map the port exposed by Docker. return a pretty-printed, nicely indented string representation of the JSON value, also see: return a pretty-printed, nicely indented string representation of the XML value, also see: get the value of any Java system-property by name, useful for, returns a JSON array of integers (inclusive), the optional third argument must be a positive integer and defaults to 1, and if start < end the order of values is reversed, very rarely used - when needing to perform conditional removal of JSON keys or XML nodes. Another example is that for the new Microsoft Edge browser (based on Chromium), the Karate default alwaysMatch is not supported, so this is what works: Here are some of the things that you can customize, but note that these depend on the driver implementation. """, //DEPS com.intuit.karate:karate-core:RELEASE:all, "https://jsonplaceholder.typicode.com/users", * def expected = __num == 0 ? German or ISO-8859-15. Now you can use the path of the batch file in the driver executable config. See karate.callSingle(). To visually highlight an element in the browser, especially useful when working in the debugger. 'name is Bob and age is 5', # the single cell can be any valid karate expression, * def generator = function(i){ if (i == 20) return null; return { name, Keywords that set multiple key-value pairs in one step, Managing Headers, SSL, Timeouts and HTTP Proxy, Matching Sub-Sets of JSON Keys and Arrays, mix Karate into Java projects or legacy UI-automation suites, Karate entered the ThoughtWorks Tech Radar, 7 New Features in Karate Test Automation Version 1.0, nested chunks of JSON that name-space your config variables, alternate way of calling JavaScript functions, exact same example implemented in REST-assured and TestNG, do not use this unless you know what you are doing, see above, Comparison engine(s) to use. The same approach should apply to any Selenium grid provider such as Zalenium. 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. But if you are really dealing with an HTML