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TmpSuiteListener Create a jar of this directory: Dependency injection TestNG supports two different kinds of dependency injection: Native dependency injection TestNG lets you declare additional parameters in your methods.
When this happens, TestNG will automatically fill these parameters with the right value. Dependency injection can be used in the following places: Any AfterMethod method can declare a parameter of type ITestResult , which will reflect the result of the test method that was just run. Any BeforeMethod and AfterMethod can declare a parameter of type java. This parameter will receive the test method that will be called once this BeforeMethod finishes or after the method as run for AfterMethod.
Any BeforeMethod can declare a parameter of type Object. This parameter will receive the list of parameters that are about to be fed to the upcoming test method, which could be either injected by TestNG, such as java.
Method or come from a DataProvider. The latter parameter will receive the test method that is about to be invoked. You can turn off injection with the NoInjection annotation: Your createModule method should return a Guice Module that will know how to instantiate this test class. You can use the test context to find out more information about your environment, such as parameters specified in testng.
You will get even more flexibility and Guice power with parent-module and guice-stage suite parameters. Here is how you can define parent-module in your test. TestNG will create this module only once for given suite. Will also use this module for obtaining instances of test specific Guice modules and module factories, then will create child injector for each test class.
With such approach you can declare all common bindings in parent-module also you can inject binding declared in parent-module in module and module factory. Here is an example of this functionality: Then MyContext is injected using constructor injection into TestModule class, which also declare binding for MySession. Later in TestClass you see two injections: Listening to method invocations The listener IInvokedMethodListener allows you to be notified whenever TestNG is about to invoke a test annotated with Test or configuration annotated with any of the Before or After annotation method.
You need to implement the following interface: Overriding test methods TestNG allows you to override and possibly skip the invocation of test methods. One example of where this is useful is if you need to your test methods with a specific security manager. You achieve this by providing a listener that implements IHookable. Here is an example with JAAS: A classic example for this would be to try and leverage your existing suite file and try using it for simulating a load test on your "Application under test".
TestNG allows you to alter a suite or a test tag in your suite xml file at runtime via listeners. You achieve this by providing a listener that implements IAlterSuiteListener.
Please refer to Listeners section to learn about listeners. Here is an example that shows how the suite name is getting altered in runtime: Through a Service Loader This listener cannot be added to execution using the Listeners annotation. Your test methods will typically be made of calls that can throw an exception, or of various assertions using the Java "assert" keyword.
An "assert" failing will trigger an AssertionErrorException, which in turn will mark the method as failed remember to use -ea on the JVM if you are not seeing the assertion errors. Note that the above code use a static import in order to be able to use the assertEquals method without having to prefix it by its class. Listeners implement the interface org. ITestListener and are notified in real time of when a test starts, passes, fails, etc Reporters implement the interface org.
IReporter and are notified when all the suites have been run by TestNG. The IReporter instance receives a list of objects that describe the entire test run.
Logging Listeners Here is a listener that displays a ". You can implement the interface directly if you prefer. Here is how I invoke TestNG to use this new listener: Shell java -classpath testng. Logging Reporters The org.
IReporter interface only has one method: Here is an example, and the ant task to create this report: This reporter can be injected into TestNG via the command line with -reporter.
The full set of options that can be passed is detailed in the below table. Make sure to use: This reporter is injected along with the other default listeners so you can get this type of output by default.
The listener provides some properties that can tweak the reporter to fit your needs. The following table contains a list of these properties with a short explanation:. For each of these you must specify the class org. Please note that you cannot configure the built-in reporter because this one will only use default settings.
If you need just the XML report with custom settings you will have to add it manually with one of the two methods and disable the default listeners. You might find the YAML file format easier to read and to maintain.
Dry Run for your tests When launched in dry run mode, TestNG will display a list of the test methods that would be invoked but without actually calling them. Configuration information for a TestNG class: Behaviour of annotations in superclass of a TestNG class The annotations above will also be honored inherited when placed on a superclass of a TestNG class.
If set to true, this configuration method will be run regardless of what groups it belongs to. For after methods afterSuite, afterClass, If set to true, this configuration method will be run even if one or more methods invoked previously failed or was skipped.
If true, this method will belong to groups specified in the Test annotation at the class level. Only for BeforeMethod and AfterMethod.
Marks a method as supplying data for a test method. The annotated method must return an Object where each Object can be assigned the parameter list of the test method. The Test method that wants to receive data from this DataProvider needs to use a dataProvider name equals to the name of this annotation. The name of this data provider. If set to true, tests generated using this data provider are run in parallel. Default value is false. Marks a method as a factory that returns objects that will be used by TestNG as Test classes.
The method must return Object. If set to true, this test method will always be run even if it depends on a method that failed. The class where to look for the data provider. If not specified, the data provider will be looked on the class of the current test method or one of its base classes. If this attribute is specified, the data provider method needs to be static on the specified class.
The list of exceptions that a test method is expected to throw. If no exception or a different than one on this list is thrown, this test will be marked a failure. The maximum number of milliseconds this test should take for the cumulated time of all the invocationcounts.
This attribute will be ignored if invocationCount is not specified. This attribute can only be used at the class level and it will be ignored if used at the method level.
The size of the thread pool for this method. The method will be invoked from multiple threads as specified by invocationCount. Default behavior is skip. The default number of threads to use for data providers when running tests in parallel. This sets the default maximum number of threads to use for data providers when running tests in parallel. It will only take effect if the parallel mode has been selected for example, with the -parallel option.
This can be overridden in the suite definition. Lets you specify your own test listeners. The classes need to implement org. A comma separated list of fully qualified class name and method. A comma-separated list of Java classes and method priorities that define method selectors. Lets you specify method selectors on the command line.
If specified, sets the default mechanism used to determine how to use parallel threads when running tests. If not set, default mechanism is not to use parallel threads at all. Similar to the -listener option, except that it allows the configuration of JavaBeans-style properties on the reporter instance.
The directories where your javadoc annotated test sources are. This option is only necessary if you are using javadoc type annotations. This specifies the suite name for a test suite defined on the command line. This option is ignored if the suite. It is possible to create a suite name with spaces in it if you surround it with double-quotes "like this". Specifies a jar file that contains test classes.
This specifies the name for a test defined on the command line. It is possible to create a test name with spaces in it if you surround it with double-quotes "like this". Lets you specify your own test runners. The class needs to implement org.
This sets the default maximum number of threads to use for running tests in parallel. This attribute should contain the path to a valid XML file inside the test jar e. The default is "testng. This option will be ignored unless -testjar is specified.
For example, it is quite common to have at least two categories of tests Check-in tests. These tests should be run before you submit new code. They should typically be fast and just make sure no basic functionality was broken. These tests should cover all the functionalities of your software and be run at least once a day, although ideally you would want to run them continuously. Typically, check-in tests are a subset of functional tests.
TestNG allows you to specify this in a very intuitive way with test groups. For example, you could structure your test by saying that your entire test class belongs to the "functest" group, and additionally that a couple of methods belong to the group "checkintest": Here is another example, using regular expressions this time. Assume that some of your test methods should not be run on Linux, your test would look like: TestNG uses regular expressions , and not wildmats.
Be aware of the difference for example, "anything" is matched by ". Method groups You can also exclude or include individual methods: Groups of groups Groups can also include other groups. These groups are called "MetaGroups". For example, you might want to define a group "all" that includes "checkintest" and "functest".
Here is how you would define this in your property file: Partial groups You can define groups at the class level and then add groups at the method level: This XML parameter is defined in testng. The Parameters annotation can be placed at the following locations: On at most one constructor of your test class. In this case, TestNG will invoke this particular constructor with the parameters initialized to the values specified in testng.
This feature can be used to initialize fields inside your classes to values that will then be used by your test methods.
Parameters with DataProviders Specifying parameters in testng. Dependencies Sometimes, you need your test methods to be invoked in a certain order.
There are two kinds of dependencies: All the methods you depend on must have run and succeeded for you to run. If at least one failure occurred in your dependencies, you will not be invoked and marked as a SKIP in the report.
You will always be run after the methods you depend on, even if some of them have failed. Here is an example of a hard dependency: You can also have methods that depend on entire groups: By default, dependent methods are grouped by class.
For example, if method b depends on method a and you have several instances of the class that contains these methods because of a factory of a data provider , then the invocation order will be as follows: To ignore all tests in a particular package, you just need to create package-info. Ignore; This causes all the Test methods to be ignored in the package com.
Parallelism and time-outs You can instruct TestNG to run your tests in separate threads in various ways. Parallel suites This is useful if you are running several suite files e. You can use the following command line flag to specify the size of a thread pool: TestNG -suitethreadpoolsize 3 testng1. TestNG will run all your test methods in separate threads.
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