Junit automation testing framework index.
JUnit is a simple framework to write repeatable tests. It is a Java based framework and is an instance of the xUnit architecture for unit testing frameworks.
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As you start on with automation you may come across various approaches, techniques, framework and tools you may incorporate in your automation code. Sometimes such versatility leads to greater complexity in code than providing better flexibility or better means of resolving issues. While writing an automation code it’s important that we are able to clearly portray our objective of automation testing and how are we achieving it. Having said so it’s important to write ‘clean code’ to provide better maintainability and readability. Writing clean code is also not an easy cup of tea, you need to keep in mind a lot of best practices. The below topic highlights 8 silver lines one should acquire to write better automation code.
I still remember the day when our delivery manager announced that from the next phase, the project is going to be Agile. After attending some training and doing some online research, I realized that as a traditional tester, moving from Waterfall to agile testing team is one of the best learning experience to boost my career. Testing in Agile, there were certain challenges, my roles and responsibilities increased a lot, workplace demanded for a pace which was never seen before. Apart from helping me to learn automation tools as well as improving my domain and business knowledge, it helped me get close to the team and participate actively in product creation. Here I will be sharing everything I learned as a traditional tester moving from Waterfall to Agile.
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The efficiency of test automation largely depends on how well the ‘functionality under test’ is behaving against different input combinations. For instance, an email provider would have to verify different screens like login, sign-up, etc., by supplying different input values to the scenarios. However, the effort involved in maintaining the test code rises significantly with new functionalities in the web product.
LambdaTest also has a detailed JUnit tutorial explaining its features, importance, advanced use cases, best practices, and more to help you get started with running your automation testing scripts.
Here are the detailed JUnit testing chapters to help you get started:
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Junit is lincensed under the Other
How to Setup JUnit and Write Your First Test
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EDIT 2020-09-21: Since 3.4.0, Mockito supports mocking static methods, API is still incubating and is likely to change, in particular around stubbing and verification. It requires the mockito-inline
artifact. And you don't need to prepare the test or use any specific runner. All you need to do is :
@Test
public void name() {
try (MockedStatic<LoggerFactory> integerMock = mockStatic(LoggerFactory.class)) {
final Logger logger = mock(Logger.class);
integerMock.when(() -> LoggerFactory.getLogger(any(Class.class))).thenReturn(logger);
new Controller().log();
verify(logger).warn(any());
}
}
The two inportant aspect in this code, is that you need to scope when the static mock applies, i.e. within this try block. And you need to call the stubbing and verification api from the MockedStatic
object.
@Mick, try to prepare the owner of the static field too, eg :
@PrepareForTest({GoodbyeController.class, LoggerFactory.class})
EDIT1 : I just crafted a small example. First the controller :
import org.slf4j.Logger;
import org.slf4j.LoggerFactory;
public class Controller {
Logger logger = LoggerFactory.getLogger(Controller.class);
public void log() { logger.warn("yup"); }
}
Then the test :
import org.junit.Test;
import org.junit.runner.RunWith;
import org.powermock.core.classloader.annotations.PrepareForTest;
import org.powermock.modules.junit4.PowerMockRunner;
import org.slf4j.Logger;
import org.slf4j.LoggerFactory;
import static org.mockito.Matchers.any;
import static org.mockito.Matchers.anyString;
import static org.mockito.Mockito.verify;
import static org.powermock.api.mockito.PowerMockito.mock;
import static org.powermock.api.mockito.PowerMockito.mockStatic;
import static org.powermock.api.mockito.PowerMockito.when;
@RunWith(PowerMockRunner.class)
@PrepareForTest({Controller.class, LoggerFactory.class})
public class ControllerTest {
@Test
public void name() throws Exception {
mockStatic(LoggerFactory.class);
Logger logger = mock(Logger.class);
when(LoggerFactory.getLogger(any(Class.class))).thenReturn(logger);
new Controller().log();
verify(logger).warn(anyString());
}
}
Note the imports ! Noteworthy libs in the classpath : Mockito, PowerMock, JUnit, logback-core, logback-clasic, slf4j
EDIT2 : As it seems to be a popular question, I'd like to point out that if these log messages are that important and require to be tested, i.e. they are feature / business part of the system then introducing a real dependency that make clear theses logs are features would be a so much better in the whole system design, instead of relying on static code of a standard and technical classes of a logger.
For this matter I would recommend to craft something like= a Reporter
class with methods such as reportIncorrectUseOfYAndZForActionX
or reportProgressStartedForActionX
. This would have the benefit of making the feature visible for anyone reading the code. But it will also help to achieve tests, change the implementations details of this particular feature.
Hence you wouldn't need static mocking tools like PowerMock. In my opinion static code can be fine, but as soon as the test demands to verify or to mock static behavior it is necessary to refactor and introduce clear dependencies.
Description:
Check if input data is not truncated while saving. The field length shown to the user on the page and in the database schema should be the same.
Description:
Font size, style, and color for headline, description text, labels, infield data, and grid info should be standard as specified in SRS.
Description:
Verify that the API returns a response with a custom HTTP header when a specific request header is sent.
Description:
Ensure that the source order presents content meaningfully. When the page is viewed without styles, all content on the page should still appear in a meaningful and logical order.
Junit can be downloaded from it’s GitHub repository - https://github.com/junit-team/junit5
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Selenium is one of the most renowned open-source test automation frameworks. It allows test automation of web-apps across different browsers & operating systems.
TestNG is a popular open-source Java-based testing framework. It covers a broader range of test categories: unit, functional, end-to-end, integration, etc.
Serenity framework allows for cleaner and more maintainable automated acceptance and makes regression tests faster. This is an integration with JUnit.
Serenity framework allows for cleaner and more maintainable automated acceptance and makes regression tests faster. This is an integration with Cucumber.
Serenity framework allows for cleaner and more maintainable automated acceptance and makes regression tests faster. This is an integration with JBehave.
Tool to perform auditing and testing for inspecting infrastructure
Generate mocks from ActiveRecord models for unit tests that run fast because they don't need to load Rails or a database
Gherkin is a parser and compiler for the Gherkin language. Gherkin Ruby can be used either through its command line interface (CLI) or as a library.
factory_bot is a fixtures replacement with a straightforward definition syntax , support for multiple build strategies and support for multiple factories.
FlaUI is a .NET library which helps with automated UI testing of Windows applications (Win32, WinForms, WPF, Store Apps).
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