By Andrew Kandels

Web Application Testing

Testing Practices

Unit TestingEngineers

Regression TestingQuality Assurance, Engineers

Load TestingSystem Administrators, Engineers

Usability TestingDesigners, Random Audience, Existing Customers

Testing Practices

Functional TestingQA, Customer Service, SalesEnvironmental TestingSystem Administrators, Engineers

Cross Browser TestingEveryone

Device / Mobile TestingEveryone

Unit Testing

Test driven development (TDD) encourages simple designs and inspires confidence.

Tests define:

• The expected behavior

• What you want to achieve

• What your program should do

The Code

The Test

Behavior Modification

Benefits

There are numerous advantages:• You have an execution environment for running

your code

• You have a place to document business rules

• Dramatically simplifies refactoring

• Forces you to write smaller, less complex functions and methods

Benefits

Write tests for failing code.• Problem is replicated and clearly described

• Fix is proven by demonstration

Code Coverage

Describes the degree in which a product is tested:

Tools

Unit testing frameworks are available in almost any language:

• PHP’s PHPUnit

• Java’s JUnit

• Ruby’s Test::Unit

• iOS / Objective C (native)

• Python’s unittest

• .NET’s xUnit

Regression Testing

Automated scripts or playback of recordings.

• Verify changes don’t introduce unexpected faults

• Monitor performance changes

• Checks correctness of the program and its output

• Interacts with the program as a user would

Selenium

seleniumhq.org

Open Source

• Clicks links

• Fills out forms

• Scans for content

• Runs in-browser

• Interacts as a user would

• WebDriver Compatible

Selenium in Action

Watir

watir.com

Open Source

• Test with Ruby

• Multi-browser (WebDriver)

• Headless Mode

• Connects to Databases

• Measure Performance

Watir in Action

Load Testing

Measure response times after simulating real traffic.

• Ensure changes don’t impact performance

• Determine hardware/network requirements

• Expose bugs (race conditions)

• Simulate customer behavior at scale

wget

Neustar

Usability Testing

Evaluate your product using real users to:

• Discover errors

• Identify areas for improvement

• Efficiency

• Accuracy

• Recall

• Emotional Response

Hallway Testing

Participants chosen from a random pool.

Can be cost prohibitive for smaller companies.

Click Tracking

labsmedia.com

Price: Free

ClickHeat is a visual heatmap of clicks on a web page.

Crowd Sourcing

conceptfeedback.com

Price: Free

Submit your ideas, designs, products to an expert community for feedback.

Five Second Test

fivesecondtest.com

Price: Free

Helps you fine tune your landing pages and calls to action by analyzing the most prominent elements of your design.

Cross Browser Testing

browserling.com

Free Version (5 minute sessions)

• Driven by HTML5 Canvas

• Multiple Browser Support

• Reverse Proxy Support

• Automated Regression Support

Device / Mobile Testing

Emulators and simulators are your best bet.

Opera mini, blackberry, Android, iPhone, simulate headers, etc.

Lower Environments

turnkeylinux.org

Free• Rapidly deploy applications

• Download or on the cloud

• Latest versions

Test / Sample Data

The End

Andrew KandelsWeb: http://andrewkandels.com

GitHub: https://github.com/akandels

Twitter: @andrewkandels