Slides from my talk at Selenium Conference 2016. In this talk you will get ideas about how you can instrument test result information to provide actionable data, paving the way for more robust, reliable and timely test results. By capturing this information over time, and when combined with visualization tools, we can answer different questions than with existing solutions (Allure / CI tool build history). Some examples of these are: Which tests are consistently flaky What are the common causes of failure across tests Which tests consistently take a long time to run Using this information we can move away from the ‘re-run’ culture and better support continuous integration goals of having quick, reliable, deterministic tests Video of the talk is here: https://youtu.be/29fPYx7OJnE?list=PL_7kBU2XBlbKuRNVHeqjXUygXtToqMHsn

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Test trend analysis:Towards robust,
reliable and timely tests
Hugh McCamphill

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Principal Software Engineer in Test
Belfast Selenium Meetup Organiser
Writing Automation Since 2004
WebDriver user since 2011

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Which tests are slow
Which steps are slow
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Which tests are intermittently passing
What are common failures across tests

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Where are the issues?

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~ Henry David Thoreau

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Example dashboard

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RunTests Results
Post
Results
A Simple Process Flow

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A time series database is a
software system that is optimized
for handling time series data,
arrays of numbers indexed
by time
Elasticsearch is a tool for storing, searching, and
analyzing structured and unstructured data

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Setting up a mapping
{"mappings":{"result":{
"properties":{
"project":{"type":"string"},
"environment":{"type":"string"},
"duration":{"type":"double"},
"name":{"type":"string","index":"not_analyzed"},
"classname":{"type":"string","index":"not_analyzed"},
"message":{"type":"string","index":"not_analyzed"},
"status":{"type":"string"},
"created":{"type":"date","format":"yyyy-MM-dd HH:mm:ss"}}}}

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Setting up a mapping
{"mappings":{"result":{
"properties":{
"project":{"type":"string"},
"environment":{"type":"string"},
"duration":{"type":"double"},
"name":{"type":"string","index":"not_analyzed"},
"classname":{"type":"string","index":"not_analyzed"},
"message":{"type":"string","index":"not_analyzed"},
"status":{"type":"string"},
"created":{"type":"date","format":"yyyy-MM-dd HH:mm:ss"}}}}

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Setting up a mapping
{"mappings":{"result":{
"properties":{
"project":{"type":"string"},
"environment":{"type":"string"},
"duration":{"type":"double"},
"name":{"type":"string","index":"not_analyzed"},
"classname":{"type":"string","index":"not_analyzed"},
"message":{"type":"string","index":"not_analyzed"},
"status":{"type":"string"},
"created":{"type":"date","format":"yyyy-MM-dd HH:mm:ss"}}}}

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Setting up a mapping
{"mappings":{"result":{
"properties":{
"project":{"type":"string"},
"environment":{"type":"string"},
"duration":{"type":"double"},
"name":{"type":"string","index":"not_analyzed"},
"classname":{"type":"string","index":"not_analyzed"},
"message":{"type":"string","index":"not_analyzed"},
"status":{"type":"string"},
"created":{"type":"date","format":"yyyy-MM-dd HH:mm:ss"}}}}
curl -XPUT “http://localhost:9200/test-result” –
d @mapping_schema_framework.json

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{"index":{"_index":"test-result","_type":"functional" }}
{"project":“TestProject",
"environment":"QA",
"classname":“TestProject.Foo.Bar",
"name":"ShouldBeAbleToAddItem",
"duration":"47.12",
"created":"2016-09-14 21:35:53",
"status":"Passed"}
curl -XPOST “http://localhost:9200/test-
result/_bulk?pretty” --data-binary @testResults.json
Posting of results

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A Simple Process Flow
RunTests Results
Post
Results Visualize

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Kibana is an open source data visualization plugin for ElasticSearch

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New visualization results in a single bucket

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Splitting error messages into buckets of top occurring errors

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Showing top ten most occurring error messages

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Splitting error messages into buckets of tests affected by that error

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Error Messages
Individual Tests
Splitting error messages into buckets of tests affected by that error

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Top Failure Reasons By Test

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Top Slowest Tests

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Top Failing Tests

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Step Time Versus Number Of Times Executed

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Step Time Versus Number Of Times Executed

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Step Time Versus Number Of Times Executed

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Example Dashboard With Time Filter

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References
http://martinfowler.com/articles/nonDeterminism.htm
https://watirmelon.blog/2015/11/11/your-tests-arent-flaky/

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Thank you
Hugh McCamphill
@hughleo01
Run Tests Results
Post
Results Visualize
In Summary