CODEWITHSUNDEEP
javawindowseclipsejunitcommand
Petr
Petr

Reputation: 1148

Run External Command Before JUnit Tests in Eclipse

Is it possible to run an external command before running tests in a given JUnit file? I run my tests using the Eclipse's Run command. Using JUnit 4.

Thanks.

Upvotes: 0

Views: 1671

Answers (3)

netmikey
netmikey

Reputation: 2550

Disclaimer: I'm the author of TestProcesses.

Just in case someone lands here searching for a solution:

It's been a while since this question was asked. Assuming you have migrated to JUnit5 in the meantime and are using (or can use) Spring Test, you could have a look at TestProcesses. It is a JUnit5 extension that manages the lifecycle of applications/programs (processes) needed during testing.

It sounds like that's what you're looking for and it allows you to manage the process' lifecycle declaratively, without a lot of boilerplate in your test classes.

https://github.com/netmikey/testprocesses

Upvotes: 0

Perception
Perception

Reputation: 80603

Very vague question. Specifically, you didn't mention how you are running your JUnit tests. Also you mentioned 'file', and a file can contain several JUnit tests. Do you want to run the external command before each of those tests, or before any of them are executed?

But more on topic:

If you are using JUnit 4 or greater then you can tag a method with the @Before annotation and the method will be executed before each of your tagged @Test methods. Alternatively, tagging a static void method with @BeforeClass will cause it to be run before any of the @Test methods in the class are run.

public class MyTestClass {

    @BeforeClass
    public static void calledBeforeAnyTestIsRun() {
        // Do something
    }

    @Before
    public void calledBeforeEachTest() {
       // Do something
    }

    @Test
    public void testAccountCRUD() throws Exception {
    }
}

If you are using a version of JUnit earlier than 4, then you can override the setUp() and setUpBeforeClass() methods as replacements for @Before and @BeforeClass.

public class MyTestClass extends TestCase {

    public static void setUpBeforeClass() {
        // Do something
    }

    public void setUp() {
       // Do something
    }

    public void testAccountCRUD() throws Exception {
    }
}

Upvotes: 2

GETah
GETah

Reputation: 21419

Assuming you are using JUnit 4.0, you could do the following:

@Test
public void shouldDoStuff(){
    Process p = Runtime.getRuntime().exec("application agrument");
    // Run the rest of the unit test...
}

If you want to run the external command for every unit test, then you should do it in the @Before setup method.

Upvotes: 1

Related Questions