import ballerina/io;
import ballerina/test;

// Executed before the `testFunction` function.
function beforeFunc() {
    io:println("I'm the before function!");
}

// The Test function.
// The `before` and `after` attributes are used to define the functions
// that need to be executed before and after this test function.
@test:Config {
    before: beforeFunc,
    after: afterFunc
}
function testFunction() {
    io:println("I'm in test function!");
    test:assertTrue(true, msg = "Failed!");
}

// Executed after the `testFunction` function.
function afterFunc() {
    io:println("I'm the after function!");
}

Before and After Test

The before attribute allows you to execute a function before a test function. Similarly, the after attribute can be used to execute a function after a test function.

These annotations can be used to set up the prerequisites and post actions for a test case.

For more information, see Testing Ballerina Code and the Test Module.

 
import ballerina/io;
import ballerina/test;

function beforeFunc() {
    io:println("I'm the before function!");
}

Executed before the testFunction function.

 
@test:Config {
    before: beforeFunc,
    after: afterFunc
}
function testFunction() {
    io:println("I'm in test function!");
    test:assertTrue(true, msg = "Failed!");
}

The Test function. The before and after attributes are used to define the functions that need to be executed before and after this test function.

 
function afterFunc() {
    io:println("I'm the after function!");
}

Executed after the testFunction function.

 
bal test test_module

Compiling source
        ballerinatest/test_module:0.1.0

Running tests
    ballerinatest/test_module:0.1.0
I'm the before function!
I'm in test function!
I'm the after function!

        [pass] testFunction

        1 passing
        0 failing
        0 skipped