Inverting Test Pyramid

Experience ReportSachin Natu @natusachin

Naresh Jain @nashjain

25YEARS 6000+CLIENTS Nr 1M ROOMS 94COUNTRIES 95%+

ago we started

helping clients

manage their

revenue

later we’re still finding

the revenue opportunity

in every situation

around the world are

priced every single day

using IDeaS

on 6 continents have

hotels that now run on

IDeaS Revenue

Management

Systems

More than 95

percent of all

our clients are

still working

with us today.

About IDeaS

Our Worldwide Clients :

Hospitality + Travel + Distribution

Agenda

● Where were

we?

● Problem

● How we tried to

solve?

● How we

optimized?

Status of regression time

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No Automation !

Problems

● Thousands of

regression tests

● Cross cutting defects

found were more.

● Repeat Exeuction

Moving to shorter release cycle - a dream?

Regression period is incompressible

Manual and repetitive tasks are error prone.

Issue leakages

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Releases

Let’s automate regression

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UI Test

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After Automation Introduced

Production feedback

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Duration…

2

Yrs

Team of 2 full time Automation Testers

State of the Product

Manual

Checking 45%

End- to End UI Tests 40%

Integration Tests10%

Unit Tests5%

Are we happy now?

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Always Catching Up

No pinpointed feedback

Silos

Tests are slow

Costly to maintain

Is there way out?

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Analysis of Bugs Report

Why test from far

Manual

Checking

End- to End Selenium Tests 70%

Integration Tests20%

Unit Tests10% Unit Tests 70%

Domain Logic Acceptance

Tests 10%

Integration Tests 9%

Workflow API

Tests 6%

End to

End Flow

Tests 4%

UI

1

%

Typical test strategies lead to an inverted testing pyramid

This is the need of the hour….Courtesy: Naresh Jain @AgileFAQs.com

The Test Pyramid

Our transition story…

• We decided to "Test things right , at right place on right time" which would result in "right test pyramid“

Unit Tests 70%

Domain Logic Acceptance

Tests 10%

Integration Tests 9%

Workflow API

Tests 6%

End to

End Flow

Tests 4%

UI

1

%

Business logic test

Current Status

Benefits

Automation is part of development

• TDD

• BDD

• UI Tests only worry for UI

Improved collaboration

Developer QA

Grouping Tests - ROI

80 Scenarios - 300 + Min!

Grouping Tests - ROI - Pyramid

80 Scenarios < Min!

End to End - 4 Min

UI Tests - 4 Min

Regression timelines

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Months

Feels like Agile now...

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Challenges

• Legacy code - “Unit test unfriendly”

• Mapping acceptance tests with various slices of pyramid

• Building team competencies

• Pairing/ collaboration is backbone

Key Learnings

• Do not overdo UI regression automation

• Keep it simple/pinpointed

• Design for Testability

Unit Tests 70%

Domain Logic Acceptance

Tests 10%

Integration Tests 9%

Workflow API

Tests 6%

End to

End Flow

Tests 4%

UI

1

%

Naresh Jain @nashjainSachin Natu @natusachin

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Some Statistics...