Protractor - Jasmine

Prerequisites:

Node.js and NPM are installed.

http://automation-home.blogspot.in/2015/05/installing-nodejs-and-npm-on-windows.html

Protractor is installed

http://automation-home.blogspot.com/2015/06/protractor-installation.html

Jasmine is installed by default when 'protractor' is installed(protractor can be installed by using the command 'npm install -g protractor').

Jasmine is a BDD(Behavior Driven Development) framework for testing the JavaScript code.

Suites: 'describe' your tests,

'describe' jasmine function has two parameters 

- string : Describes the spec suite 'name' or 'title' 

- function : Function contains code for implementing the suite.

Specs: Specs are defined by using the jasmine function 'it', 

'it' jasmine function has two parameters

- string : specifies the 'title' of the spec.

- function : Function is the actual test.

'describe' and 'it' both contains the necessary code block to execute and implement the test,

Ex:

describe("Suite Name/Suite Description", function() {

  it("Spec Title/Spec Description", function() {

    expect(true).toBe(true);

  });

});

Variables declared in 'describe' block are available to any 'it' block.

Ex:

describe("Suite Name/Suite Description", function() {

  var flag;

  it("Spec Title/Spec Description", function() {

    flag = true;

    expect(flag).toBe(true);

  });

});

Expectations:

'expect' function takes the 'actual' value, chained with 'matcher' function(matcher function takes 'expected' value).

Matchers:

Performs the boolean comparison between 'actual' and 'expected' values, jasmine will 'pass' or 'fail' spec based on the matcher comparison.

Below are some of the Jasmine Matchers:

- not                    - toBeTruly

- toBe                  - toBeFalsy

- toEqual              - toContain

- toMatch               - toBeLessThan

- toBeDefined       - toBeGreaterThan

- toBeUndefined   - toBeCloseTo

- toBeNull              - toThrow

Below are some of the Jasmine functions:
- describe          - it
- beforeEach     - afterEach
- beforeAll         - afterAll
- xdescribe        - xit
- spyOn

Reference:

http://jasmine.github.io/2.0/introduction.html

http://www.slideshare.net/cebartling/javascript-38057372