Agile Testing – Principles, methods & advantages



As the complexity of software development process is increasing continuously, the software testing approaches needs to evolve to keep up with the development approaches. Agile testing is a new age approach which focuses on testing smarter rather than putting a lot of efforts yet it delivers high-quality products.

As the complexity and developers need a higher level of collaboration in Agile Testing. The testers have to provide corrective feedback to the development team during the development cycle. This is the age of on-going integration between testing and development approaches.

What is Agile Testing?

Agile testing is a software testing process that follows the principles of agile software development. Agile testing aligns with iterative Development Methodology in which requirements develop gradually from customers and testing teams. The development is aligned with customer requirements.

Agile testing is a continuous process rather than being sequential. The testing begins at the start of the project and there is ongoing integration between testing and development. The common objective of agile development and testing is to achieve a high product quality.

Agile testing vs. Waterfall testing

Agile is testing adopted while working with agile development approach where as waterfall testing is used in the waterfall development model. Below we are some high-level Differences Between Agile Testing And Waterfall Testing.

Agile Testing

• Agile testing is unstructured when compared with the waterfall approach and there is minimal planning.
• Agile testing is well suited for small projects.
• As testing begins toward the beginning of the project, errors can be fixed in the middle of the project.
• There is very less documentation required for agile testing.
• In this approach, every iteration has its own testing phase. The regression tests can be run every time new functions or logic are released
• In agile testing shippable features of the product are delivered to the customer at the end of an iteration.
• Testers and developers work closely in Agile testing
• User acceptance is performed at the end of every sprint.
• The testers need to establish communication with developers to analyze requirements and planning.

Waterfall Testing

• In the Waterfall demonstrate, the testing procedure is more organized and there is a detailed description of the testing stage.
• Waterfall testing can be adopted for all sorts of projects.
• In the waterfall model, the product is tested at the end of the development. For any changes, the project has to start from the beginning.
• The testing in the waterfall approach requires elaborate documentation.
• The testing begins only after the completion of the development phase.
• In this traditional approach, all features developed are delivered altogether after the implementation phase.
• Testers and developers work separately.
• User acceptance can only be performed at the end of the project.
• Developers are not involved in analyzing requirements and planning process.

Principles of Agile Testing

• Testing is continuous: Agile group tests consistently in light of the fact that it is the best way to the continuous progress of the product.• Continuous feedback: Agile testing gives criticism on a progressing premise and this is the manner by which your item meets the business needs.
• Tests performed by the whole team: In a conventional programming improvement life cycle, just the test group is in charge of testing yet in lithe testing, the designers, and the business examiners additionally test the application.

• Decrease time of feedback response: The business group is engaged with every cycle in coordinated testing and consistent input abbreviates the season of criticism reaction.

• Simplified & clean code: Every one of the imperfections which are raised by the lithe group are settled inside a similar emphasis and it helps in keeping the code spotless and improved.

• Less documentation: Agile teams use a reusable checklist, the team focuses on the test instead of the incidental details.

• Test Driven: In agile methods, testing is performed at the time of implementation whereas, in the traditional process, the testing is performed after implementation.

Behaviour Driven Development (BDD)

Behaviour Driven Development (BDD) improves communication amongst project stakeholders so that all members correctly understand each feature before the development process starts. There is continuous example-based communication between developers, testers, and business analysts.

The illustrations are called Scenarios which are composed in an exceptional configuration called Gherkin Given/When/Then linguistic structure. The situations hold data on how a given component ought to act in various circumstances with various information parameters. These are called “Executable Specifications” as it includes both detail and contributions to the mechanized tests.

Acceptance Test Driven Development (ATDD)

ATDD centers around including colleagues with alternate points of view, for example, the client, engineer, and analyzer. Three Amigos gatherings are held to detail acknowledgment tests fusing points of view of the client, improvement, and testing. The client is centered around the issue that will be unraveled, the improvement is centered around how the issue will be understood though the testing is centered around what could turn out badly. The acknowledgment tests are a portrayal of the client’s perspective and it depicts how the framework will work. It additionally checks that the framework capacities as it should. In a few occurrences, acknowledgment tests are computerized.

Exploratory Testing

In this sort of testing, the test plan and test execution stage go as one. Exploratory testing accentuates working programming over thorough documentation. The people and associations are more imperative than the procedure and devices. Client coordinated effort holds more prominent incentive than contract arrangement. Exploratory testing is more versatile to changes. In this analyzers distinguish the usefulness of an application by investigating the application. The analyzers attempt to take in the application, and outline and execute the test designs as indicated by their discoveries.

Advantages of Agile Testing

The benefits of the agile testing approach are as follows:

It saves time and money

Agile testing reduces documentation

It is flexible and highly adaptable to changes

It provides a way for receiving regular feedback from the end user

Better determination of issues through daily meetings

Test Plan for Agile

In agile testing, the test plan is written as well as updated for every release. A test plan in agile includes:

  • The scope of the testing
  • Consolidating new functionalities to be tested
  • Types of testing/Levels of testing
  • Performance & load testing
  • Consideration of infrastructure
  • Risks Plan
  • Planning of resources
  • Deliverables & Milestones

 Agile Testing Lifecycle

 The agile testing lifecycle includes the following 5 phases:

  • Impact assessment
  • Agile Testing Planning
  • Release Readiness
  • Daily Scrums
  • Test Agility Review


Agile testing encourages the early location of imperfections as well as decreases the cost of bugs by settling them early. This approach additionally yields a client-driven approach by conveying a superb item as right on time as could be allowed.


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