12/2/2015

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1CONFIDENTIAL

Péter Földházi Jr.

peter_foldhazi@epam.com

Tri-Layer Testing

Framework

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Table of ContentsTable of Contents

Test Automation Basics

Legacy Layering Techniques

Tri-LayerFramework

App Logic & Structure

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BASICSAUTOMATIONTEST

1. Test Automation Basics

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Test Automation BasicsTest Automation Basics

Processing Acceptance Criteria For Automation

Manual Testers Automation Testers

REQUIREMENTS RECEIVED

CREATE TEST CASES

SELECT CASES TO AUTOMATE

SORT OUT BY PRIORITY

MERGE COHERENT

CASES

ANALYSIS DESIGN IMPLEMENTATION

Business

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Test Automation BasicsTest Automation Basics

What shall not be automated?

Technical difficulties Resource shortage Better manually

- Limitation of

access

- Imaging

- 3rd party tool

- Lack of mocks

- Not enough

engineers

- Maintenance cost

is too high

- Look & Feel

- Layout

- Colouring &

schemes

SELECT CASES TO AUTOMATE

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Test Automation BasicsTest Automation Basics

Merging Test Cases

MERGE COHERENT

CASES

Go to Login

screen

Fill in

credentials

Log in and go to

Profile screen

Do a full login

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TECHNIQUESLAYERINGLEGACY

2. Legacy Layering Techniques

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Legacy Layering TechniquesLegacy Layering Techniques

The Big Mess• No separate layers

• No design at all

• Focus is on dirty and quick solution

• POCs (Proof of Concepts)

• No automation effort

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Legacy Layering TechniquesLegacy Layering Techniques

The Two Layer Framework• Commonly used

• Test Layer

• „Everything else” Layer

• Circumstantial reusability

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Test layer

Test #1 Test #NTest #2

Legacy Layering TechniquesLegacy Layering Techniques

Framework Layers

Test Libraries layer

Page Models Hardware ControllersBDD Classes

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FRAMEWORKLAYERTRI

3. Tri-Layer Framework

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Tri-Layer FrameworkTri-Layer Framework

A Testing Framework’s Purpose• Automated testing

• Generated reports

• Detailed logs

• Extend the knowledge of the base tool

• Decrease maintenance cost

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Tri-Layer FrameworkTri-Layer Framework

Facade Pattern• Simplified interface to a larger body of code

• Software library easier to use

• Library more readable

• Reduce dependencies

• Wrap a poorly designed collection of APIs

Test layer

Test Successful Login Test Edit ProfileTest Failed Login

Inter layer

Main Screen Profile ScreenLogin Screen

Login Flow

Facade

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Test layer

Test #1 Test #NTest #2

Tri-Layer FrameworkTri-Layer Framework

Framework Layers

Inter layer

Flow Models Structure Models

Core layer

Base Test Additional LibrariesProject Common

Library

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Tri-Layer FrameworkTri-Layer Framework

Framework Layers

BaseTest:

• No application dependency

• Basic functionality with base tool

• Any project may use it

Common:

• Project dependent

• Domain specific functionality

• Only project related apps may use it

Additional libraries:

• Solution dependent

• Solution specific functionality

• Example: sensor mocks, parsers, loggers etc.

Core layer

Base Test Additional LibrariesProject Common

Library

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Tri-Layer FrameworkTri-Layer Framework

Framework Layers

Structure Models:

• Each screen has their own dedicated

model

• Only element locators and screen specific

properties are stored in these models

• No user actions are to be implemented!

Flow Models:

• The service provider facades

• Test scripts call all the methods from these

models as the test steps

• All user flows are stored in these models

Inter layer

Flow Models Structure Models

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Tri-Layer FrameworkTri-Layer Framework

Framework Layers

Test scripts:

• Runnable test scripts

• Implementations of all the ”ready-to-

automate” processed test cases

• Each test step shall directly be called from

facades provided by the flow models

Test layer

Test #1 Test #NTest #2

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STRUCTURELOGIC &APP

4. App Logic & Structure

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App Logic & StructureApp Logic & Structure

Page Object Model• UI areas that your tests interact with

• Modeled as objects within the test code

• Separate page models

• Both structure and user interactions are

stored in the same class

• Reduces duplicated code

Buttons Textfields Edittexts Images Pickers...

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App Logic & StructureApp Logic & Structure

Page Object Model• UI areas that your tests interact with

• Modeled as objects within the test code

• Separate page models

• Both structure and user interactions are

stored in the same class

• Reduces duplicated code

Buttons Textfields Edittexts Images Pickers...

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App Logic & StructureApp Logic & Structure

Flow Model Design - Click Username Edittext

- Type Username

- Click Password Edittext

- Type Password

Click Logout Button

Click Continue

Button

Click Login

Button

Main

Screen

Login

Screen

Profile

Screen

Click Back

Button

- Edit Profile

- Click Username Edittext

- Type Username

- Click Cancel button

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App Logic & StructureApp Logic & Structure

Screen Structure• Focus is on the objects

• Basically same as a page model without the app logic

included

• It helps determine where you are at in the app

• Builds up the app structure

solo.clickOnView(mainPage.loginButton);

solo.clickOnEditText(loginPage.username);

solo.typeText(loginPage.username, "DarthVader");

solo.clickOnEditText(loginPage.password);

solo.typeText(loginPage.password, "iAMyourF4ther");

solo.clickOnView(loginPage.loginButton);

Assert.equals("Welcome, DonaldDuck" profilePage.Title);

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App Logic & StructureApp Logic & Structure

User Flow• Most important user actions are stored in separate flow models

• Corresponds to testing more

• Page structure models are used by the models

• Test scripts call directly from these classes

public login.start() {

solo.clickOnView(mainPage.loginButton));

}

public login.typeUsername(String username) {

solo.clickOnEditText(loginPage.username);

solo.typeText(loginPage.username, username);

}

public login.typePassword(String password) {

solo.clickOnEditText(loginPage.password);

solo.typeText(loginPage.password, password);

}

public login.end() {

solo.clickOnView(loginPage.loginButton);

Assert.equals("Welcome, " + username,

profilePage.Title);

}

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App Logic & StructureApp Logic & Structure

Test Script using Flow Models• Methods of Flow Model classes are called

• Code is easy to read

• Test script replaces test case

login.start();

login.typeUsername("DarthVader");

login.typePassword("iAMyourF4ther");

login.end();

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25CONFIDENTIAL

Péter Földházi Jr.

peter_foldhazi@epam.com

Thank You!

Köszönöm!