Data Driven Protractor Testing

In this article I would like to share knowledge regarding Data driven testing.

When using a Data driven automation test framework, we do not need to hard code the test data. Instead it enables to access the test data from a separate data file and use them in the automated test cases.

First, let's take a look at a simple Protractor script without Data Driven framework

describe('Angular home page', function () {
      it('should add the String in todo list ', function () {
         browser.get('https://angularjs.org/');
         element.all(by.css("[placeholder='add new todo here']")).sendKeys("Add POM");
         element(by.css('input.btn-primary')).click();

         var getText = element.all(by.css('label.checkbox'));
         getText.get(2).getText().then(function (results) {
         expect(results).toEqual("Add POM");
         });
      });
});

Now let's create a JSON file to store the user inputs dataInput.json as the first step of moving in to the data driven approach.
dataInput.json

{
   "url":"https://angularjs.org/",
   "sampleString": "Add POM"
}

Now we can use the above created JSON file simply via the require function by importing it in to the test script.

describe('Angular home page', function () {
var data = require(protractor.basePath + '/e2e-tests/blog/dataInput.json');

      it('should add the String in todo list ', function () {
         browser.get(data.url);
         element.all(by.css("[placeholder='add new todo here']")).sendKeys(data.sampleString);
         element(by.css('input.btn-primary')).click();

         var getText = element.all(by.css('label.checkbox'));
         getText.get(2).getText().then(function (results) {
         expect(results).toEqual(data.sampleString);
         });
      });
});

The script can access the input values using parameters data.url and data.simpleString