test automation in the microservices oriented enterprise by shawn wallace
TRANSCRIPT
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Test Automation in the “Microservices” Oriented
EnterpriseShawn Wallace
Architect, Centric Consulting
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I’m Shawn
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I’m ShawnFavorite Movie
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I’m ShawnMy dog
Favorite Movie
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I’m ShawnMy dog
My Son
Favorite Movie
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I’m ShawnMy dog
My Son
My Daughter
Favorite Movie
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I’m ShawnMy dog
My Son
My Daughter
My Family
Favorite Movie
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I’m ShawnMy dog
My Son
My Daughter
My Family
I live here
Favorite Movie
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I’m ShawnMy dog
My Son
My Daughter
My Family
I live here
Favorite Movie
I a Marine Vet
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I’m ShawnMy dog
My Son
My Daughter
My Family
I live here
I went to Ohio State
Favorite Movie
I a Marine Vet
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I’m ShawnMy dog
My Son
My Daughter
My Family
I live here
I went to Ohio State
Where I work
Favorite Movie
I a Marine Vet
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What I got for Valentine’s Day
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I’m a Developer…
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Microservices
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How did we get here?
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Monolithic Applications
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Monolithic Applications
Orders
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Monolithic Applications
Invoicing Inventory
Logging
Profiles
Warehouse
Orders
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Monolithic Applications
Invoicing Inventory
Logging
Profiles
Warehouse
Orders
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Monolithic Applications
Invoicing Inventory
Logging
Profiles
Warehouse
Orders
Time To Build
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Monolithic Applications
Invoicing Inventory
Logging
Profiles
Warehouse
Orders
Time To Build
Size of Codebase
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Monolithic Applications
Invoicing Inventory
Logging
Profiles
Warehouse
Orders
Time To Build
Time To Test
Size of Codebase
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Monolithic Applications
Invoicing Inventory
Logging
Profiles
Warehouse
Orders
Time To Build
Time To Test
Size of Codebase
We are getting better at writing code than getting it into production.
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Service Oriented Architecture (SOA)
Orders Invoicing Inventory
Logging Profiles Warehouse
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Orders Invoicing Inventory
Logging Profiles Warehouse
Service Oriented Architecture (SOA)
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Orders Invoicing Inventory
Logging Profiles Warehouse
Service Oriented Architecture (SOA)
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Orders Invoicing Inventory
Logging Profiles Warehouse
Tightly Coupled
Service Oriented Architecture (SOA)
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Loosely Coupled
Orders Invoicing Inventory
Logging Profiles Reporting
Event Bus
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Service Based Architecture• No point-to-point integrations • Loosely coupled, highly scalable systems • Loosely coupled, TEAMS • Easier to test • Easier to change • Topology agnostic
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Easy to Integrate New Systems
Orders Invoicing Inventory
Logging Profiles Reporting
Event Bus
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Easy to Integrate New Systems
Orders Invoicing Inventory
Logging Profiles Reporting
Event Bus
New System
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Scales
Orders Invoicing Inventory
Logging Profiles Reporting
Event Bus
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InventoryInventory
Inventory
Scales
Orders Invoicing Inventory
Logging Profiles Reporting
Event Bus
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Other benefits• Ease of 3rd party integration • Existing systems can be ‘wrapped’ • Can be deliberate about scaling • Fault tolerant • Event messages can be logged and ‘replayed’ • Can test subsystems in isolation
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DevOps is a Real Thing
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EngineeringQuality
Assurance
IT Operations
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EngineeringQuality
Assurance
IT Operations
Tension
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IT Operations
Quality
AssuranceEngin
eerin
g
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IT Operations
Quality
AssuranceEngin
eerin
g
DevOps
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…that you might need to develop
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…that you might need to develop• Technical in nature • Http Verbs (POST, GET, PUT, PATCH, DELETE, OPTIONS) • Http Headers • ReST • API • More about networking than
you would like • Oh, and you still need to know
the business
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Once you have developed these skills, a whole new world of testing capability becomes available to you.
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Easy to Test
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Easy to Test
80-90%
5-15%
1-5%
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• Deliberately test your system at the physical boundaries
• Know what your system does and how it works
• Collaborate! Collaborate! collaborate!
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• Deliberately test your system at the physical boundaries
• Know what your system does and how it works
• Collaborate! Collaborate! collaborate!
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• Deliberately test your system at the physical boundaries
• Know what your system does and how it works
• Collaborate! Collaborate! collaborate!
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Terminology
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Terminology• Messaging • Contracts • Messaging Infrastructure • Asynchronous • Loosely Coupled • “Edge” Testing • Mocks/Fakes • Dynamic Scaling • Data Consistency, Master Data Management
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• Messaging • Contracts • Messaging Infrastructure • Asynchronous • Loosely Coupled • “Edge” Testing • Mocks/Fakes • Dynamic Scaling • Data Consistency, Master Data Management
Orders Invoicing Inventory
Logging Profiles Reporting
Event Bus
Terminology
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• Messaging • Contracts • Messaging Infrastructure • Asynchronous • Loosely Coupled • “Edge” Testing • Mocks/Fakes • Dynamic Scaling • Data Consistency, Master Data Management
Orders Invoicing Inventory
Logging Profiles Reporting
Event Bus
Terminology
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• Messaging • Contracts • Messaging Infrastructure • Asynchronous • Loosely Coupled • “Edge” Testing • Mocks/Fakes • Dynamic Scaling • Data Consistency, Master Data Management
Orders Invoicing Inventory
Logging Profiles Reporting
Event Bus
Terminology
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• Messaging • Contracts • Messaging Infrastructure • Asynchronous • Loosely Coupled • “Edge” Testing • Mocks/Fakes • Dynamic Scaling • Data Consistency, Master Data Management
Orders Invoicing Inventory
Logging Profiles Reporting
Event Bus
Terminology
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Terminology• Messaging • Contracts • Messaging Infrastructure • Asynchronous • Loosely Coupled • “Edge” Testing • Mocks/Fakes • Dynamic Scaling • Data Consistency, Master Data Management
Orders Invoicing Inventory
Logging Profiles Reporting
Event Bus
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Terminology• Messaging • Contracts • Messaging Infrastructure • Asynchronous • Loosely Coupled • “Edge” Testing • Mocks/Fakes • Dynamic Scaling • Data Consistency, Master Data Management
Orders Invoicing Inventory
Logging Profiles Reporting
Event Bus
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Terminology• Messaging • Contracts • Messaging Infrastructure • Asynchronous • Loosely Coupled • “Edge” Testing • Mocks/Fakes • Dynamic Scaling • Data Consistency, Master Data Management
Orders
Fake Consumer
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Terminology• Messaging • Contracts • Messaging Infrastructure • Asynchronous • Loosely Coupled • “Edge” Testing • Mocks/Fakes • Dynamic Scaling • Data Consistency, Master Data Management
Orders Invoicing Inventory
Logging Profiles Reporting
Event Bus
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Terminology• Messaging • Contracts • Messaging Infrastructure • Asynchronous • Loosely Coupled • “Edge” Testing • Mocks/Fakes • Dynamic Scaling • Data Consistency, Master Data Management
Orders Invoicing Inventory
Logging Profiles Reporting
Event Bus
Inventory
Inventory
Inventory
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Terminology• Messaging • Contracts • Messaging Infrastructure • Asynchronous • Loosely Coupled • “Edge” Testing • Mocks/Fakes • Dynamic Scaling • Data Consistency, Master Data Management
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Testing Approaches
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Use your web browser
• Can only execute un-authenticated GET requests • Can only access web clients • Hard to set headers
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Use a web “sniffer”
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Use a web “sniffer”
• Fiddler - more granularity, more technicalhttp://www.telerik.com/fiddler
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Use a web “sniffer”
• Fiddler - more granularity, more technicalhttp://www.telerik.com/fiddler
• Postman - more friendly user interfacehttps://www.getpostman.com
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Use a functional testing tool
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Shawn [email protected]
@ShawnWallace
http://blog.shawnewallace.com
http://www.about.me/shawnwallace
This Presentation