Using Cucumber as a language-agnostic spec

How we used BDD to set a contract for implementations of the same thing in different programming languages

Transcript

1. Using Cucumber as
   a language-agnostic
   spec
   honzajavorek.cz @honzajavorek
   Honza Javorek
   

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3. Using Cucumber as
   a language-agnostic
   spec
   honzajavorek.cz @honzajavorek
   Honza Javorek
   "
   

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5. 
   ?
   

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6. 
   OpenAPI,
   API Blueprint
   Dredd
   implementation
   ✅ ❌
   TESTED CONTRACT FOR HTTP APIs
   

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7. 
   Gherkin
   feature files
   Cucumber
   implementation
   ✅ ❌
   TESTED CONTRACT FOR PRODUCT BEHAVIOR
   

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13. ...
    hooks
    interface
    

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14. ...
    TESTED
    CONTRACT
    language-agnostic
    open source friendly
    standard
    CI friendly
    

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15. ...
    TESTED
    CONTRACT
    language-agnostic
    open source friendly
    standard
    CI friendly
    able to describe
    a complex,
    custom behavior
    

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16. ...
    TESTED
    CONTRACT
    language-agnostic
    open source friendly
    standard
    CI friendly
    able to describe
    a complex,
    custom behavior
    
    

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17. 
    Gherkin
    feature files
    Cucumber
    hooks handler
    implementation
    ✅ ❌
    

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19. 
    Contract in
    Gherkin
    feature files
    ✅ ❌
    ...
    Cucumber
    tests
    

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20. 
    Contract in
    Gherkin
    feature files
    with placeholders
    ...
    ✅ ❌
    Canned
    Cucumber
    tests
    Cross language test suite
    template package
    

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30. 
    imagine we used
    YAML files with custom structure or
    JavaScript code to describe the test
    scenarios
    

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31. 
    change propagation?
    

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33. TESTED
    CONTRACT
    language-agnostic
    open source friendly
    standard
    CI friendly
    able to describe a complex, custom behavior
    
    both human & machine -readable
    

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