7. Code Coverage with Jasmine Tests | Jasmine Cookbook

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Table Of Contents

Jasmine Cookbook

By : Munish Kumar

4.3 (7)

Jasmine Cookbook

4.3 (7)

By: Munish Kumar

Overview of this book

If you are a competent JavaScript developer who wants to design and implement tests using Jasmine in order to minimize bugs in the production environment, then this book is ideal for you. Some familiarity with unit testing and code coverage concepts such as branch coverage along with basic knowledge of Node.js, AngularJS, and CoffeeScript is required.

Preface

Preface

What this book covers

What you need for this book

Who this book is for

Sections

Conventions

Reader feedback

Customer support

Free Chapter

1. Getting Started with Jasmine Framework

1. Getting Started with Jasmine Framework

Introduction

Writing your first Jasmine test

Adding specs to your Jasmine test

Adding expectations and matchers to the test

Applying different matchers to the Jasmine test

Applying setup and teardown functions to the Jasmine test

Using the "this" keyword

2. Jasmine with TDD and BDD Processes

2. Jasmine with TDD and BDD Processes

Introduction

Writing Jasmine tests using TDD and BDD processes

Creating a Jasmine test for new code using TDD and BDD

Designing Jasmine tests for existing code using TDD and BDD

Defining nested suites to write more meaningful specs

3. Customizing Matchers and Jasmine Functions

3. Customizing Matchers and Jasmine Functions

Introduction

Writing a Jasmine test using a custom equality tester function

Writing Jasmine tests with custom matchers

Writing Jasmine tests for exceptions

Declaring pending specs with Jasmine tests

4. Designing Specs from Requirement

4. Designing Specs from Requirement

Introduction

Writing useful specs by analyzing the test requirements

Implementing the Jasmine test corresponding to the specs

Applying Acceptance Criteria to the Jasmine test

Organizing Jasmine specs into groups and subgroups

5. Jasmine Spies

5. Jasmine Spies

Introduction

Writing Jasmine tests using the spyOn() method and special matchers for spies

Writing Jasmine tests using tracking properties

Writing Jasmine tests with your own custom spy method

Using jasmine.any and jasmine.objectContaining

Writing Jasmine tests to mock the JavaScript timeout functions

6. Jasmine with AJAX, jQuery, and Fixtures

6. Jasmine with AJAX, jQuery, and Fixtures

Introduction

Writing Jasmine specs for AJAX

Designing Jasmine specs with HTML and JSON fixtures

Writing Jasmine specs for jQuery

Writing Jasmine specs using custom jQuery matchers

Writing Jasmine specs for asynchronous operations using the done() function

7. Code Coverage with Jasmine Tests

7. Code Coverage with Jasmine Tests

Introduction

Configuring code coverage tools

Generating code coverage using karma and istanbul

Writing Jasmine specs for uncovered branches/code

Increasing code coverage for existing code

8. Jasmine with Other Tools

8. Jasmine with Other Tools

Introduction

Writing Jasmine tests for AngularJS

Using Jasmine with CoffeeScript

Writing Jasmine tests for Node.js

9. Developing JavaScript Apps Using Jasmine – a Real-time Scenario

9. Developing JavaScript Apps Using Jasmine – a Real-time Scenario

Introduction

Defining Jasmine specs corresponding to a user story

Implementing Jasmine specs with Web/HTML

Implementing Jasmine tests with a Data-Driven approach

Creating Jasmine tests for a change request

Index

Index

Writing Jasmine specs for uncovered branches/code

In the previous recipe, we looked at how to generate code coverage reports using karma. In this recipe, you will learn how to cover the code coverage for the uncovered branches or the code that is not being tested with the current test suite(s) in order to ensure the quality of code.

You will learn how to cover code coverage for uncovered branches/code with the help of the previous recipe, Generating code coverage using karma and istanbul and the Designing the Jasmine test for existing code using TDD and BDD recipe explained in Chapter 2, Jasmine with TDD and BDD Processes.

How to do it...

You need to perform the following steps to generate a code coverage report for uncovered branches/code:

First, you need to create a spec file (TDS_existing_coverage_spec.js) under the /spec folder and get the following code from the spec file (TDS_existing_spec.js) created during the implementation of the Designing the Jasmine test for existing code using TDD...

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