Cucumber with TestNG
Cucumber is a test automation framework which leverages Behavior Driven Development for collaboration in between Business and IT teams. The core of cucumber has been developed in Ruby programming language however it supports all the majorly used programming languages for testing such as Java, CPython. Behavior Driven Development is derived from Test Driven Development as a software development methodology.
As a part of the Test Driven Development approach, the developer creates tests as a part of the acceptance criteria first. The developer will make sure the test is passed and will commit changes in the code.
It provides an edge over other methodologies in terms of finding defects early in the cycle which reduces the cost of finding bugs and refactoring improves the code. Cons of Test Driven Development are the maintenance of tests created, it is a test-centric methodology, non-programmers might find it hard to understand for performing selenium automation testing. The test or acceptance criteria being targeted makes it hard for team collaboration.
To overcome the above trouble heads, Behavior Driven Development was introduced to reduce the time to test, less code with more collaboration. This problem is addressed by defining the behavior of application under test in a ubiquitous language i. Focuses more in terms of end-user experience or inclined more towards behavior specifications while compared to that of traditional Test Driven methodology.
As discussed earlier, Cucumber is a test automation tool that supports Behavior Driven Development. It makes use of user-defined specifications to validate the application under test.
Feature fileStep Definitionsand Test Runner file. Feature File would enable the user to define the behavior of the application in plain English text with help of Gherkin Language. Gherkin is used to define executable specifications with the help of a predefined set of contextual keywords. Keywords involved are demonstrated with the help of the below example:.
Feature: High-level description of a software feature or behavior of application under test. It also symbolizes and acts as one or more user perspectives involved. Annotations: Keywords which hold a specific meaning and would help and defined the meaning of a scenario.
Quoted an example related to the feature file below which involves all the above-mentioned keywords. Step Definition file created would be consisting of a code which defines the steps for annotations created in feature file. An annotation followed by step defined in patterns with the help of regular expression would help in linking the step definition file to steps in feature file. Sample step definition code sample for above code is defined as above.Cucumber is a tool based on Behavior Driven Development BDD framework which is used to write acceptance tests for a web application.
It allows automation of functional validation in easily readable and understandable format like plain English to Business Analysts, Developers, Testers, etc. You can have as many data providers in one class as you wish. Once you migrate to TestNG you will notice that you start writing a lot of parametrized tests. Because they are so very useful!
For Ex: Feature files related to smoke test need not run all the time. So if you mention a tag as smokeTest in each feature file which is related to smoke test and runs cucumber test with SmokeTest tag.
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This means that every time you visit this website you will need to enable or disable cookies again. Cucumber : Cucumber is a tool based on Behavior Driven Development BDD framework which is used to write acceptance tests for a web application. There is no more need for a static main method in our tests. The sequence of actions is regulated by easy-to-understand annotations that do not require methods to be static. Useful when you have to automate a large number of test case. Listeners and Reporters It is pretty easy to write your own listeners which act in runtime and reporters which are invoked after the execution.
TestNG can generate reports based on our Selenium test results. WebDriver has no native mechanism for generating reports. Embeds BeanShell for further flexibility. Default JDK functions for runtime and logging no dependencies.
Dependent methods for application server testing. Use of rich library of annotations and that is it! These exceptions are reported as failed steps in the report. Cucumber is used to test the system rather than testing the particular piece of code Integration with other tools Cucumber can be used along with Selenium, Watir, and Capybara Cucumber supports many other languages like Perl, PHP, Python, Net Features Feature File: Feature files are essential part of cucumber which is used to write test automation steps or acceptance tests This can be used as live document The steps are the application specification.
All the feature files ends with. Feature: This gives information about the high-level business functionality Refer to the previous example and the purpose of Application under test Everybody should be able to understand the intent of feature file by reading the first Feature step Scenario: Basically, a scenario represents a particular functionality which is under test By seeing the scenario user should be able to understand the intent behind the scenario and what the test is all about Each scenario should follow given, when and then format.
Scenario Outline: Scenario outlines are used when the same test has to be performed with different data set Tags Cucumber by default runs all scenarios in all the feature files. In real time projects there could be hundreds of feature file which are not required to run at all times.
Would it be convoluted or difficult to use Junit just with Cucumber tests and TestNG with all of my other lower level tests? Cucumber is not really driven by JUnit. JUnit Runner is an easy way to integrate running cucumber into an existing testing infrastructure like mvn verify. The only thing important for you is to plug it into a proper build lifecycle phase, we often use it on integration-test instead of the test phase instead of the maven. Technically you could use something else instead of the JUnit to start cucumber tests, for example their CLI runner either from command line or programmatically.
Cucumber-jvm is object oriented while TestNG is class oriented. The two don't mesh well. That being said, take a look at the following:. You can also run it directly from the command line, from your IDE or from a build tool like Maven or Gradle.
Sign up to join this community. The best answers are voted up and rise to the top. Home Questions Tags Users Unanswered. Asked 3 years, 11 months ago. Active 1 year, 1 month ago. Viewed 16k times. I have a simple question as I am just getting into Test Automation.
Lamar Lamar 11 1 1 gold badge 1 1 silver badge 2 2 bronze badges. Active Oldest Votes. Mykola Gurov Mykola Gurov 1 1 silver badge 2 2 bronze badges. That being said, take a look at the following: automatictester java-calculator-testng testng The best option appears to be one TestNG test runner per feature file. Marit Marit 1 1 silver badge 12 12 bronze badges.
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Email Required, but never shown. The Overflow Blog. The Overflow How many jobs can be done at home? Featured on Meta. Community and Moderator guidelines for escalating issues via new response….Extended Cucumber Runner is the extension of standard Cucumber JUnit runner which additionally supports:.
This extension is done in a form of JUnit runner. Since there are some additional options there is dedicated ExtendedCucumberOptions annotation for that. The use of Extended Cucumber runner is similar to standard runner.
Actually it is wrapper above the standard Cucumber runner object. In some cases we need to define dynamic values for the output. Normally it may be needed if we would like to drop reports to some folder which name corresponds to current date and time or we need to paste value from either system property or environment variable. For this purpose the outputFolder and reportPrefix fields may contain specific expressions which are later calculated.
The following expressions are supported:. Otherwise, engine will try to replace values with environment variables of the same name. Sometimes we would like to define values externally depending on various parameters calculated in build scripts or so. For this purpose library reserves an ability to override fields in ExtendedCucumberOptions annotation with system properties. Such system properties should fit the following format:.
Note that currently we can override only booleans, integers and strings.
Usage The use of Extended Cucumber runner is similar to standard runner. RunWith ; import com. ExtendedCucumber ; import com. ExtendedCucumberOptions ; import cucumber.
Stack Overflow for Teams is a private, secure spot for you and your coworkers to find and share information. I'd like a runtime solution. I have a bunch of non-Cucumber tests using already written using the TestNG framework and I'd like to have the Cucumber code in there as well.
Figured out how you can send custom cucumberoptions which contains the feature file name to the runner class.
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This will allow both cucumber and non-cucumber tests to be run from testng. Cucumber checks if any option overrides have been provided for CucumberOptions annotation. Following are checked from top to bottom, stops after any one is found:.
Values found in override will replace any values set except for the plugin argument. Plugin argument will be appended. Arguments which are not overridden will not be affected. You can also use testng cucumber classes which do not extend AbstractTestNgCucumberTests but use composition Setup Run As Configuration in eclipse as below and run This "setup" code does the trick. It gives me the cucumber feature I'm interested in running. I will look at the other proposal as well.
Another technique is using reflection to modify the CucumberOptions annotation in real time before instantiating the runner thanks to several older posts for the inspiration :. Learn more. Asked 2 years, 11 months ago. Active 2 years, 11 months ago. Viewed 3k times. Has anyone come up with something clever?
Walter Kelt. Walter Kelt Walter Kelt 1, 1 1 gold badge 15 15 silver badges 20 20 bronze badges. Are you using maven?GitHub is home to over 40 million developers working together to host and review code, manage projects, and build software together.
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The ExtentReports plugin is developed by Anshoo Arora. This is one of the best reporting plugin available for testing world. This plugin can be used with any Test Apis. I've been receiving queries often that the extent report class not found. As I mentioned in my last statement, you will have to explicitly add ExtentReport as a maven dependency.
To do that, paste the following in your pom. If you are not using maven, download the jar from here. Package names are updated from com. For more details, look at Changelog. Create a runner class and add the com. The above setup will generate the report in output directory with the name of report. There are 3 ways to configure the report location:.2. Cucumber Framework -- Custom TestNG Runner -- Creation.
As shown above, pass the report file path along with com. If in case you want a dynamic location, you can leave the file path parameter empty while configuring the plugin.
You can also configure the report location by using ExtentProperties enum as follows. Leave the plugin configuration empty, and configure the report location in your BeforeClass method:. The above example shows a JUnit runner. However, you can use the TestNG runner too. Refer more examples here.
Thanks to msingh3 for the contribution. The current release added a support for Klov. The results of your execution can be sent to Klov dashboard. The Klov configurations can be set up using ExtentProperties enum as follows:.
XML is written by code which includes all classeshere I can manage which classes to run or which to not by controlling from external Excel file. ArrayList; import java. List; import org. Reporter; import org. XmlClass; import org. XmlSuite; import org. XmlTest; import com. TestNG; import com. Following are two plugins which can be used in pom. Learn more. How to run custom testNG runner with maven by jenkins Ask Question. Asked 3 years, 1 month ago. Active 3 years, 1 month ago. Viewed 1k times.
I am new to maven and Jenkins. Plz help me with below requirements. I have multiple test classes I. Or can I run that testNG runner class using Jenkins.
Here I need to control which classes to be executed or which are not from external file. Please suggest me the solution for this. Afsar Ali. Afsar Ali Afsar Ali 2 2 silver badges 14 14 bronze badges. No Test runner class necessary? Why using an Excel file?
Just run them all and you are sure everything works.
Simple Cucumber-JVM test with TestNG and Selenium
Furthermore just use the naming conventions depending in which phase you are running your tests integration-test, test? Active Oldest Votes. Plugin for including "TestNG.
Sameer Patil Sameer Patil 1 1 silver badge 8 8 bronze badges. Thanks a lot Sameer!!