Java Unit Test Comment execution order

JUNIT4 identifies the test method by annotating it. The main annotations currently supported are:

• @BeforeClassThe global is executed only once, and is the first one to run
• @BeforeRun before the test method runs
• @TestTest method
• @AfterAllows after the test method has been run
• @AfterClassThe global only executes once and is the last one to run
• @IgnoreIgnore this method

Here's an example:

2. Import Org.junit.After;
4. Import Org.junit.AfterClass;
6. Import Org.junit.Assert;
8. Import Org.junit.Before;
10. Import Org.junit.BeforeClass;
12. Import Org.junit.Ignore;
14. Import Org.junit.Test;
18. Public class Junit4testcase {
22. @BeforeClass
24. public static void Setupbeforeclass () {
26. System.out.println ("Set Up Before class");
28. }
32. @Before
34. public void SetUp () throws Exception {
36. System.out.println ("Set up");
38. }
42. @Test
44. public void Testmathpow () {
46. System.out.println ("Test Math.pow");
48. Assert.assertequals (4.0, Math.pow (2.0, 2.0), 0.0);
50. }
54. @Test
56. public void Testmathmin () {
58. System.out.println ("Test math.min");
60. Assert.assertequals (2.0, Math.min (2.0, 4.0), 0.0);
62. }
66. //Expect this method to throw a NullPointerException exception
68. @Test (expected = nullpointerexception. Class)
70. public void TestException () {
72. System.out.println ("Test exception");
74. Object obj = null;
76. Obj.tostring ();
78. }
82. //Ignore this test method
84. @Ignore
86. @Test
88. public void Testmathmax () {
90. Assert.fail ("not implemented");
92. }
94. //Use "assumptions" to ignore test methods
96. @Test
98. public void Testassume () {
100. System.out.println ("Test assume");
102. //When the assumption fails, it stops running, but this does not mean that the test method failed.
104. Assume.assumetrue (false);
106. Assert.fail ("not implemented");
108. }
112. @After
114. public void TearDown () throws Exception {
116. System.out.println ("Tear down");
118. }
122. @AfterClass
124. public static void Teardownafterclass () {
126. System.out.println ("Tear down after Class");
128. }
132. }

JUNIT3 's package is junit.framework , and JUNIT4 is org.junit .
After you execute this use case, the console outputs

Wrote set up before class
Set up
Test Math.pow
Tear down
Set up
Test Math.min
Tear down
Set up
Test exception
Tear down
Set up
Test assume
Tear down
Tear down after class

As you can see, the order of execution is-- @BeforeClass @Before @Test @After @Before @Test @After @AfterClass ----------. @Ignorewill be ignored.

Java Unit Test Comment execution order