How to change scope variable in karma - angularjs

Question

I have a test case that scope.action = 'Insert' need to be changed for every it() i.e for first test case it should be as insert for 2nd test case scope.action='update' and for the 3rd test case it should be scope.action='delete'. How can i achieve this.
'use strict';
describe('app module', function() {
beforeEach(module('sampleApp'));
beforeEach(module(function ($provide) {
$provide.value('BaseController', {});
}));
describe('TestController', function() {
var scope, controller;
beforeEach(inject(function($rootScope, $controller) {
scope = $rootScope.$new();
controller = $controller;
controller('BaseController', {$scope: scope});
controller('TestController', {
$scope: scope
});
scope.action="insert" ;
}));
it('Should return type insert', function () {
expect(scope.getActionType()).toBe('insert');
});
it('Should return type update', function () {
expect(scope.getActionType()).toBe('update');
});
it('Should return type delete', function () {
expect(scope.getActionType()).toBe('delete');
});
});
});

Answer 1

You'd achieve it via describe's in describe's. The outer beforeEach() block sets things up, but the inner ones set your scope:
describe('Test Controller', () => {
beforeEach(() => {
// In here, do what you currently have in your beforeEach
// but NOT the scope.action; EXCEPT the controller;
});
describe('Test 1', () => {
beforeEach(() => {
scope.action = 'Insert'
controller('TestController', { $scope: scope });
});
it('First Test', () => {});
});
describe('Test 2', () => {
beforeEach(() => {
scope.action = 'Update';
controller('TestController', { $scope: scope });
});
it('Second Test', () => {});
});
describe('Test 3', () => {
beforeEach(() => {
scope.action = 'Delete';
controller('TestController', { $scope: scope });
});
it('Third Test', () => {});
});
});