beforeEach in protractor

beforeEach in protractor?

• beforeEach block will be executed before executing the each it() blocks in a describe() block
• We can write multiple it() blocks in a describe() block.
• beforeEach is normally used to write the code(steps) which is repeated in each it() block.

Demo on beforeEach():

describe('First describe block', function () {
    beforeEach(function () {
        console.log("before each 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");
    });
});

Run above spec file:

Protractor beforeEach

• We will see how the beforeEach block will execute if we have multiple describe blocks.

describe('First describe block', function () {
    beforeEach(function () {
        console.log("before each 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 () {
    beforeEach(function () {
        console.log("before each 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:

Protractor beforeEach()

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

beforeEach(function () {
    console.log("before each block - before describe block(s)");
});
describe('First describe block', function () {
    beforeEach(function () {
        console.log("before each 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 () {
    beforeEach(function () {
        console.log("before each 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:

protractor beforeEach() block

Here, we observe that beforeEach() blocks executed before each it() block.


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