Shulou(Shulou.com)06/03 Report--

Want to complete some scripts, automatically run some application registration, file upload scripts. So take a cursory study of JUnit

1) create a new JUnit case directly

Time limit: @ Test (timeout=200) timeout attribute unit is millisecond

/ / exception test excepted= exception name. places where class is not yet used. Mark first

2) Life cycle

BeforeClass: a method that modifies static and executes it once before the entire class is executed to handle expensive resources, such as connecting to a database

AfterClass: the method that modifies static, as opposed to @ BeforeClass, is used to release resources

Before: a method that modifies public void, which is executed when each test case (method) is executed.

After: a method that modifies public void and executes after the execution of each test case.

Constructor: each test case recreates the current Class instance, and you can see that Constructor is executed twice.

@ Test is equivalent to main.

3) use @ RunWith annotation

For example, if I have a SimpleFunctionTest and a ComplexFunctionTest, how do I execute all of these related case at once?

@ RunWith (Suite.class) @ SuiteClasses ({ComplexFunctionTest.class, SimpleFunctionTest.class})

I haven't used it yet. Mark first.

Assert

Assert is an assertion class provided by JUnit for commonly used test result validation. The functions and methods provided are relatively simple and practical. Here is only a brief introduction to the list:

AssertTrue, AssertFalse: true, false of the result.

AssertThat: use Matcher for custom checking.

AssertEquals, AssertNotEquals: determine whether two objects are equal.

AssertNull, AssertNotNull: determine whether the object is empty.

AssertSame: to determine whether two objects are the same or not, unlike equals, we use "=" to judge.

AssertArrayEquals: determines whether two arrays are equal.

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