![Junit assertions samples
● AssertArrayEquals
– private int[] ints1 = {1,3};
– private int[] ints2 = {1,3};
– .../...
– assertArrayEquals(ints1, ints2);
– assertArrayEquals("explanation",ints1, ints2);](https://image.slidesharecdn.com/junit-150531144509-lva1-app6891/85/Junit-7-320.jpg)
Junit
- 1. Junit By Franck Benault Created 02/06/2015 Last update 13/07/2016
- 2. Junit introduction ● Samples in Github – https://github.com/franck-benault/test-junit ● Junit is the most common tests framework for the java language ● Based on annotations since version 4 ● Tests organisation ● First assertion ● We often need other frameworks to write complete and efficient tests
- 3. JUnit plan
- 4. Junit integration ● Plugin installed by default in Eclipse ● Integrated in Maven ● You could mixed tests with Junit and tests with TestNG
- 5. Junit tests regroupment ● Regroupment per class – @Suite ● Regroupment per test – @Category ● Still in « experimental » package
- 6. Junit assertions ● AssertArrayEquals ● AssertEquals / assertNotEquals ● AssertTrue / assertFalse ● AssertNull / assertNotNull ● AssertSame / assertNotSame ● AssertThat (hamcrest)
- 7. Junit assertions samples ● AssertArrayEquals – private int[] ints1 = {1,3}; – private int[] ints2 = {1,3}; – .../... – assertArrayEquals(ints1, ints2); – assertArrayEquals("explanation",ints1, ints2);
- 8. Junit rules ● Rules allow very flexible addition or redifinition of the behavior of each test method in a test class. ● Tester can reuse or extend one of the provided Rules (example system-rules a library of rules) ● Main rules – TemporaryFolder rule – ExternalResource rule – Timeout rule
- 9. Temporary rules ● The temporaryFolder rule allows – Creation of files – Creation of folder – Deletion of them when the test method finishes @Rule public TemporaryFolder folder = new TemporaryFolder();
- 10. Handling exceptions ● Fail with try-catch bloc ● @Test annotation ● Junit rule ● Catch-exception library ● Write its own annotation
- 11. Conclusion ● Junit is essential to write tests with de Java language ● There are a lot of additional frameworks which complete Junit
- 12. Around Junit