Hooks are helpful to manage tests in an efficient way. It helps us to set
conditions before/after test conditions and also reduce the redundant code.
before() Hook
If we want to execute some steps only once before all the
test cases in a test suite, we can use the before() cypress hook to group all
those test steps. It can contain some setup steps that are needed to perform
before kicking off the test execution. Please note, this block is not executed
again even if the test fails.
beforeEach() Hook
If we want to execute some steps before each of the
test cases in a Test Suite, we can use the beforeEach() block to group all
those test steps. It can be something like bringing the application to a
specific state before running each test case.
afterEach() Hook
If we want to execute some steps after each of the
test cases in a test suite. We can use the afterEach() block to group all
those test steps. It can contain some teardown steps which we need to perform
after finishing the execution of each of the test cases. It can be something
like bringing the application or database to a specific state after each test
case.
after() Hook
If we want to execute some steps only once after all the
test cases. We can use the after() block to group all those test steps. It can
contain some teardown steps that are needed to perform after finishing the
execution of all the test cases.