Modern log aggregation & search tools provide significant new capabilities for teams building, testing, and running software systems. By treating logging as a core system component, and using techniques such as unique event IDs, transaction tracing, and structured log output, we gain rich insights into application behaviour and health. This talk explains why it is valuable to test aspects of logging and how to do this with modern log aggregation tooling.
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Why and how to test logging - DevOps Showcase North - Feb 2016 - Matthew Skelton
1. Why and how to test logging
DevOps Showcase North / Testing Showcase North
Manchester, UK - Unicom
Thursday 11th February 2015
Matthew Skelton
Skelton Thatcher Consulting
66. Feature: User trades stocks
Scenario: User requests a sell before close of trading
Given I have 100 shares of MSFT stock
And I have 150 shares of APPL stock
And the time is before close of trading
When I ask to sell 20 shares of MSFT stock
Then I should have 80 shares of MSFT stock
And I should have 150 shares of APPL stock
And a sell order for 20 shares of MSFT stock should have been executed
http://martinfowler.com/bliki/GivenWhenThen.html - Pete Hodgson
67. Given I run a scenario as a Lawyer
And I create a document
[And I wait 5 seconds]
When I search the logs API
Then I should find a recent entry
for “AuditRecordCreated”
75. More
Ditch the Debugger and Use Log
Analysis Instead
Matthew Skelton
https://blog.logentries.com/2015/07/ditch-
the-debugger-and-use-log-analysis-instead/