This document discusses unit testing using PowerMock and Mockito frameworks. It explains reasons for and against unit testing and covers testing public API, static, and private methods. PowerMockito is used for mocking static methods and invoking private methods directly. The document also provides tips for writing good unit tests and references for further reading.
Demonstrate some great aspects of Mockito. Made for Mockito v1.8.5.
All examples can be found @
https://github.com/dodozhang21/MockitoExamples
Ying Zhang (Dodo) http://pure-essence.net
Demonstrate some great aspects of Mockito. Made for Mockito v1.8.5.
All examples can be found @
https://github.com/dodozhang21/MockitoExamples
Ying Zhang (Dodo) http://pure-essence.net
INtelligrape Provides agile tsolution to programming quesries. With its team of experienced software programmers, we are capablle of working on various languages.
Spock testing gives you the option of testing your grails application with accurate results.
The tutorial includes a Testing overview, understanding how unit Testing works, brief about Spock Unit Testing, Writing Unit test cases, Demo & exercise. The tutorial begins with a section which gives an overview on Testing. It includes the reason to test a program, a way of thinking about testing and also includes integral development through testing like unit testing, integration testing, functional testing, acceptance testing. The overview section is followed by the Understanding section. It includes understanding unit testing, disadvantages of unit testing like test cases, advantages of unit testing like facilitating changes, simplifying integration, evolving design etc.
Afterward comes a section about Spock Testing. It includes a brief about Spock Testing, basics about Spock Testing, specifications of Spock Testing. The next section is a brief about Unit test cases. It includes Writing Unit test cases like fields like declarations, fixture methods for setting up the environment, blocks like setup, expect, where, expert block and an example.
The last section of this tutorial is about the exercises on Testing. This section can also be called Data driven Testing and includes data tabes which are a feature method, data pipes which connect a data variable to a data provider, @unroll which has its iterations reported independently, exception conditions which tell us about when a block should throw an exception, mocking which is used for implementing objects, test mixins which enhance the behavior of a typical JUNIT, test for annotations which is a class under test, mock annotations which create a mock version of any collaborators, cardinality describes how often a method call is expected and at last stubbing which is an act to respond to the method calls.
JUnit is the de facto standard in Java testing. Yet many advanced JUnit features are little known and poorly understood. This session reviews some lesser-known features of JUnit, along with a few associated libraries, that can make your unit tests more powerful, expressive, and fun. The session is intended for Java developers, lead developers, and architects trying to introduce good testing practices into their teams.
INtelligrape Provides agile tsolution to programming quesries. With its team of experienced software programmers, we are capablle of working on various languages.
Spock testing gives you the option of testing your grails application with accurate results.
The tutorial includes a Testing overview, understanding how unit Testing works, brief about Spock Unit Testing, Writing Unit test cases, Demo & exercise. The tutorial begins with a section which gives an overview on Testing. It includes the reason to test a program, a way of thinking about testing and also includes integral development through testing like unit testing, integration testing, functional testing, acceptance testing. The overview section is followed by the Understanding section. It includes understanding unit testing, disadvantages of unit testing like test cases, advantages of unit testing like facilitating changes, simplifying integration, evolving design etc.
Afterward comes a section about Spock Testing. It includes a brief about Spock Testing, basics about Spock Testing, specifications of Spock Testing. The next section is a brief about Unit test cases. It includes Writing Unit test cases like fields like declarations, fixture methods for setting up the environment, blocks like setup, expect, where, expert block and an example.
The last section of this tutorial is about the exercises on Testing. This section can also be called Data driven Testing and includes data tabes which are a feature method, data pipes which connect a data variable to a data provider, @unroll which has its iterations reported independently, exception conditions which tell us about when a block should throw an exception, mocking which is used for implementing objects, test mixins which enhance the behavior of a typical JUNIT, test for annotations which is a class under test, mock annotations which create a mock version of any collaborators, cardinality describes how often a method call is expected and at last stubbing which is an act to respond to the method calls.
JUnit is the de facto standard in Java testing. Yet many advanced JUnit features are little known and poorly understood. This session reviews some lesser-known features of JUnit, along with a few associated libraries, that can make your unit tests more powerful, expressive, and fun. The session is intended for Java developers, lead developers, and architects trying to introduce good testing practices into their teams.
This presentation walks the reader through implementing a simple web application and its tests using Python, Flask, and the Pytest testing framework. Emphasis is placed on following the process of test-driven development (TDD) in creating the application.
[PyCon2016]To mock or not to mock, that is the questionsAna Balica
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Написание юнит-тестов большинству представляется занятием скучным и до некоторой степени бесполезным. Мое мнение — это всё оттого, что сама "классическая" схема юнит-тестов подразумевает непродуктивное написание унылого линейного кода.
В докладе я расскажу о том, как с помощью pytest начать писать тесты, которые приятно читать и поддерживать, почему setUp и tearDown — это прошлый век, как с помощью правильной организации fixtures ускорить исполнение тестов, а также какие ещё уловки могут помочь вам в вашей нелегкой борьбе с рутиной.
Principles and patterns for test driven developmentStephen Fuqua
Developed to help introduce key topics in Test Driven Development, for new and veteran developers alike. Some examples are language-specific (C# / MSTest / Moq), but the principles apply to any object oriented language.
A simple presentation that I did at work that goes over Unit Test, Mocking and TDD to improve development, it is explained from a Java perspective but can be helpful to apply TDD to other languages as well.
This workshop is about testing the right way. Get a clear view on how to test your code in an efficient and useful way!
This first testing-related workshop is about all aspects of unit testing. Integration testing and TDD will have their own dedicated workshops.
This is an introduction to unit testing using various mocking frameworks. It covers why you should consider using a mocking framework, how to apply mocks in your unit testing, and a high level comparison of various tools for mocking/stub creation. The distinction between mocks and stubs is clearly defined.
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top nidhi software solution freedownloadvrstrong314
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Software Engineering, Software Consulting, Tech Lead.
Spring Boot, Spring Cloud, Spring Core, Spring JDBC, Spring Security,
Spring Transaction, Spring MVC,
Log4j, REST/SOAP WEB-SERVICES.
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Venez le découvrir lors de cette session ignite
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OpenFOAM solver for Helmholtz equation, helmholtzFoam / helmholtzBubbleFoamtakuyayamamoto1800
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How to Position Your Globus Data Portal for Success Ten Good Practices
All about unit testing using (power) mock
1. All about unit testing
using (power) mock
by Pranalee Rokde
2. Why don’t we write Junit tests?
Invalid reasons
It doesn’t catch bugs
Its slower
Its boring
Hard to change
Too many interfaces
Testing is for QA
Valid reasons
Don’t know how
Legacy code
3. Testing Components
Code to be tested can be broken into 3 parts:
Testing of
1. Public API Methods
2. Static Methods
3. Private Methods
4. 1.Use PowerMockito for Mocking and Mockito for verifying
2. How to Mock:
ClassName instance1 = PowerMockito.mock(ClassName.class);
PowerMockito.when(instance1.method1(arg1)).thenReturn(returnObjectInstance);
3. Verifying
For method behaviour:
Mocktio.Verify(times(1))
Mockito.noMore Interactions
For return values/objects:
Use Assert
Public API Methods
5. Static Methods
1. Use PowerMockito for both mocking and verifying
2. How to Mock:
PowerMockito.mockStatic(ClassWithStaticMethods.class)
PowerMockito.when(ClassWithStaticMethods.staticMethodCall()).thenReturn
(obj1);
3. How to verify:
PowerMockotio.verifystatic(Mockito.times(1));
ClassWithStaticMethods.staticMethodCall()
6. Private Methods - I
There are 2 school of thoughts when it comes to testing of
private methods. We will look at both perspectives.
In first school of thoughts:
1. Private methods should be tested via Public Methods only
2. Private methods Should NOT be mocked while testing
object
3. If private methods are difficult to test,consider refactoring
code
4. Test should not depend on private methods, because
changes like refactoring will break test cases
7. Private Methods - II
Another school of thought says:
1. Private Methods are units of code. So they should be
tested while unit testing
2. Unit tests of private methods helps to zoom in defect
3. How to test - Without having to change your code
1. Invoke private method directly:
Whitebox.invokeMethod(classInstance, "methodname",arg1);
2. To confirm invocations made while calling public methods:
PowerMockito.spy()
8. Emma - Check your code coverage
http://www.eclemma.org/installation.html
9. JUnitGenerator
1. Ideally, test cases should be written at the same time of writing code.
2. But if you have existing code base without Junit coverage
3. This is the utility that I’ve created to generate junit stub for existing classes.
4. Download link
10. Hard to test code
1. New operator everywhere
2. Lots of static methods
3. Singletons
4. Deep class hierarchy
11. Good code
1. Favor composition over inheritance
2. Favor polymorphism over conditionals
3. SRP
4. DRY
5. Avoid object construction with application logic
6. Breakdown code into small testable units
12. Good JUnit Practices
1. Name testing methods more descriptive - preferably use
case driven
2. Testing is better while writing the code
3. Test explicilty for unexpected use cases