beforeAll in protractor

beforeAll() in protractor?

• beforeAll() block will be executed only once, before executing the all it() blocks in a describe() block
• We can write multiple it() blocks in a describe() block.
• beforeAll is normally used to write the code(steps) for launch browser URL, maximize the window, open DB connections, etc.,. depends upon your requirements.

Demo on beforeAll():

describe('First describe block', function () {
    beforeAll(function () {
        console.log("beforeAll block in First describe block");
    });
    it('First Test case - First describe block ', function () {
        console.log("First Test case in First describe block");
    });
    it('Second Test case - First describe block ', function () {
        console.log("Second Test case in First describe block");
    });
});
describe('Second describe block', function () {
    beforeAll(function () {
        console.log("beforeAll block in Second describe block");
    });
    it('First Test case - second describe block ', function () {
        console.log("First Test case in second describe block");
    });
    it('Second Test case - second describe block ', function () {
        console.log("Second Test case in second describe block");
    });
});
Run above spec file:

Output:


beforeAll() in protractor


Here,till now beforeAll() block scope is defined to specific describe() block only.
We can also declare beforeAll() block to before the all describe() blocks in the spec file.

beforeAll(function () {
    console.log("beforeAll block - before describe block(s)");
});
describe('First describe block', function () {
    beforeAll(function () {
        console.log("beforeAll block in First describe block");
    });
    it('First Test case - First describe block ', function () {
        console.log("First Test case in First describe block");
    });
    it('Second Test case - First describe block ', function () {
        console.log("Second Test case in First describe block");
    });
});
describe('Second describe block', function () {
    beforeAll(function () {
        console.log("beforeAll block in Second describe block");
    });
    it('First Test case - second describe block ', function () {
        console.log("First Test case in second describe block");
    });
    it('Second Test case - second describe block ', function () {
        console.log("Second Test case in second describe block");
    });
});
Output:
beforeAll() block in protractor

Here, we observe that beforeAll() blocks executed once before the all it() blocks.

Please comment below to feedback or ask questions.