Unit Test Cases with MVP

What is unit test ?
how to write test cases?
What is mockito ?
Types of testing.

Transcript

2. What is Unit testing? • A unit test is a piece of code that exercises a very small, specific area of functionality of the code being tested. • It tests the smallest possible unit of code, without dependencies on system or network resources. • It is written by software developers and for software developers.
3. Why Unit testing?
4. Why Unit testing? • Find a bugs at early stage
5. Why Unit testing? • Makes code refactoring easier
6. Why Unit testing? • Improve quality of code
7. Why Unit testing? • Reduce the costs
8. Why Unit testing? • Give confidence to developer
9. Why Unit testing? • Improve product stability
10. Why Unit testing? • Continuous integration
11. Test Types Local unit tests Instrumented tests
12. Local unit Tests • Located at module-name/src/test/java • These all test runs under JVM and do not have access to functional android framework APIs. • Tools: JUnit, Mockito, Roboletric, etc
13. Instrumented tests • Located at module-name/src/androidTest/java • These all test runs on Android emulator or real devices. • Tools: Espresso, Robotium, etc
15. JUnit • JUnit is an open source Unit Testing Framework for JAVA. It is useful for Java Developers to write and run repeatable tests. • Dependency: testImplementation 'junit:junit:4.12'
16. Why Mockito?
17. Mockito • Dependency: testImplementation 'org.mockito:mockito-all:1.9.5' • Mocking: @Mock LoginApi loginApi • Stubbing: Mockito.when(<yourMethod>).thenReturn(<returnVal>)
18. It’s time for Demo
19. Any Questions???
20. Thank You. https://github.com/TechnophileCommunity/16_Sept_18_UnitTest_1 Github Demo: