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Russell Smith and Fred Stevens Smith, Rainforest QA

October 2015

ISM318

Continuous QAMeasuring Software Quality with Rainforest

QA and Amazon Mechanical Turk

RainforestContinuous QA as a Service

Rainforest QA and Mechanical Turk

rainforest

Who we are

○Founded in 2012, HQ in San Francisco

○Team of 23

○$4m seed backing from YC, Storm, a16z

○50k testers, 5m jobs pw, 20% MoM $ growth

Fred Stevens-

Smith

CEO, co-

founder

Russell Smith

CTO, co-

founder

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Quality Assurance -

the maintenance of a chosen level of quality in

a service or product

tldr: making sure your product or service

“works” as expected

What is QA?

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Continuous Integration -

Check things build and pass tests

Continuous Delivery -

If it builds and passes, ship it

Traditional QA does not work with CD

What is CI / CD?

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Pick one:

Move Fast and Break things

or

Move Slow and Don’t Break Things

You shouldn’t have to make this

compromise:

Continuous QA is the answer.

The Continuous Delivery Paradox

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Why Continuous QA?

○Faster releases

○Better quality

○Catch x-browser regression bugs before

production

○Happier product teams & happier customers!

○QA: Cost center -> competitive advantage

○Bottleneck -> Seamless part of CI -> CD

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Continuous QA wishlist

○Test case management, reporting and

execution

○24/7 availability

○Super fast

○X-browser

○Comprehensive API

○Integration with existing CI / CD process

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Rainforest

○Usable by all - no code

○Results in < 30m on average

○Powered by 50,000 testers from Mechanical

Turk

○24 x 7 availability - run anytime, no waiting

○Fully cross-browser

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Where does Rainforest fit?

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Mechanical Turk

●API for microtasks

●Powered purely by humans

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Rainforest & Mechanical Turk

○Rainforest proprietary systems for ● Automated on-going training and management

● Algorithms for pairing testers together smartly

● Years of worker history and behavior data

● Reputation calculations

● Tooling for testers

● Tester lifecycle

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Rainforest Tooling

○ All run in custom VM infrastructure

○ Connected direct to the testers browser

○ Fully controlled and recorded

○ Automated screenshots, network recording

○ Desktop

● Support for all major browsers

● Enterprise support for custom builds

○ Phones, tablets

● Android 4.4 support

● Android 5 and iOS coming soon

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Traditional Workflow

1. Write code

2.A QE or QA engineer writes tests

3.Push to CI

4.Push merge to a branch

5.Schedule QA (1h+ ?)

6.Wait for QA (1-72h+ ?)

7.Deploy if QA passes (go to #1 or #2 if fail)

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Rainforest Workflow

1. Write code

2.Developer / PM writes tests in Rainforest

3.Push both to CI

4.Rainforest runs in CI (< 30m)

5.Deploy if Rainforest QA passes

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Who we do it for

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ROI from Continuous QA

Average speed of Rainforest to run 1000 tests in 5 browsers = 2.5

hrs (2.5 weeks with human QA)

Very low cost of ongoing maintenance (vs automation)

Zenefits has 1 QA person, ~50 engineers. Would have ~16 QA

otherwise. Save $2.5m.

Demo

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Customer Experience: creating tests

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Did my tests pass or fail?

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Which tests passed or failed?

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...in which browsers?

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..and what was the tester feedback?

Questions?