Extending WebDriver: A cloud approach

http://elastest.io
Extending WebDriver:
A cloud approach
Funded by the
European Union
Boni García
boni.garcia@urjc.es
11th International Conference on the Quality of Information
and Communications Technology (QUATIC 2018)
September 6th 2018 | Coimbra, Portugal

Table of contents
1. Introduction
2. Background
3. ElasTest: platform for end-to-end testing
4. User Impersonation as a Service
5. Demo
6. Conclusions and future work
2

1. Introduction
• Large distributed heterogenous systems are more
and more common (e.g. microservices
architectures, cloud native apps, etc.)
• Testing this kind of software is complex, especially
to verify the system as a whole
3
End-to-end testing
happens at system
level with users
impersonated

Table of contents
1. Introduction
2. Background
5. Demo
4

2. Background
• The main mechanism used in the current state-of-
the-art for the functional testing of web and mobile
applications consists on impersonating a user
through some kind of GUI automation
• Selenium is the most popular solution:
5

Table of contents
1. Introduction
2. Background
5. Demo
6

• ElasTest is an open source platform aimed to
ease the end-to-end testing activities for different
types of distributed applications and services
• ElasTest manages the full testing lifecycle,
deploying and monitoring the System Under Test
(SUT), executing the end-to-end tests and
exposing the results to testers
7
http://elastest.io/

• ElasTest architecture:
8

Table of contents
1. Introduction
2. Background
5. Demo
9

• ElasTest implements an User Impersonation as a
service capability (UIaaS) that provides Software
as a Service (SaaS) extending the W3C
WebDriver with advanced capabilities:
1. Evaluation of the perceived Quality of
Experience (QoE) of users on real-time
multimedia applications (WebRTC)
2. Equivalent automation capability for sensors
and smart devices for Internet of Things (IoT)
10

• Our concept of UIaaS has been implemented as a
layered approach following the NIST definition of
cloud computing (SaaS, PaaS, and IaaS)
11

• Extension to W3C WebDriver recommendation by
ElasTest User Impersonation Service:
12
Method Path Description
Event subscription
POST /session/{sessionId}/element/{elementId}/event Subscribe to a given event
within an element
GET /session/{sessionId}/event/{subscriptionId} Read the value of event for a
given subscription
DELETE /session/{sessionId}/event/{subscriptionId} Remove a subscription
Recordings
GET /session/{sessionId}/vnc Get remote session
DELETE /session/{sessionId}/vnc Delete remote session
Media capabilities
POST /session/{sessionId}/usermedia Set user media for WebRTC
GET /session/{sessionId}/stats Read the WebRTC stats
POST /session/{sessionId}/element/{elementId}/latency Measure end-to-end latency of
a WebRTC session
POST /session/{sessionId}/element/{elementId}/quality Measure quality of a WebRTC
session

Table of contents
1. Introduction
2. Background
5. Demo
13

Table of contents
1. Introduction
2. Background
5. Demo
15

• ElasTest is an open source platform aimed to
ease end-to-end tests for heterogenous large
distributed systems
• ElasTest implements a User Impersonation as a
Service (UIaaS) extending the W3C WebDriver
recommendation
• Existing test codebases with Selenium and
Appium are completely compatible with ElasTest
• Some features are still under development, such
as measurement of the end-users’ perceived QoE
or support for IoT devices
16

Extending WebDriver: A cloud approach

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