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flow

Testing framework

  • api Core type declarations
  • message Implementations of the Message interface
  • builder Implementations of the Flow and Interaction interfaces
  • model Implementations of the Model interface
  • validation Checking model consistency
  • assert Comparing models against systems
  • report Visualising assertion results
  • bom Bill of materials
  • aggregator Aggregates build artifacts
  • example Service constellation to exercise the flow framework
  • doc Documentation resources

Overview

This project provides a framework in which the flow of data in a system can be modelled. This model can then be used to drive testing, both of the complete system and of subsystems in isolation. These tests produce a rich execution report, for example.

This document describes the motivations for this approach.

Usage

  • Quickstart guide: Illustrates the construction of a simple system model and its usage.
  • Further reading: Covers more advanced usage.
  • The submodules under example illustrate a complete service constellation with flow-based testing
Artifact dependency structure
graph TB
  subgraph com.mastercard.test.flow
    api[<a href='https://github.com/Mastercard/flow/tree/main/api'>api</a>]
    assert-core[<a href='https://github.com/Mastercard/flow/tree/main/assert/assert-core'>assert-core</a>]
    assert-filter[<a href='https://github.com/Mastercard/flow/tree/main/assert/assert-filter'>assert-filter</a>]
    assert-junit4[<a href='https://github.com/Mastercard/flow/tree/main/assert/assert-junit4'>assert-junit4</a>]
    assert-junit5[<a href='https://github.com/Mastercard/flow/tree/main/assert/assert-junit5'>assert-junit5</a>]
    builder[<a href='https://github.com/Mastercard/flow/tree/main/builder'>builder</a>]
    coppice[<a href='https://github.com/Mastercard/flow/tree/main/validation/coppice'>coppice</a>]
    duct[<a href='https://github.com/Mastercard/flow/tree/main/report/duct'>duct</a>]
    message-bytes[<a href='https://github.com/Mastercard/flow/tree/main/message/message-bytes'>message-bytes</a>]
    message-core[<a href='https://github.com/Mastercard/flow/tree/main/message/message-core'>message-core</a>]
    message-http[<a href='https://github.com/Mastercard/flow/tree/main/message/message-http'>message-http</a>]
    message-json[<a href='https://github.com/Mastercard/flow/tree/main/message/message-json'>message-json</a>]
    message-sql[<a href='https://github.com/Mastercard/flow/tree/main/message/message-sql'>message-sql</a>]
    message-text[<a href='https://github.com/Mastercard/flow/tree/main/message/message-text'>message-text</a>]
    message-web[<a href='https://github.com/Mastercard/flow/tree/main/message/message-web'>message-web</a>]
    message-xml[<a href='https://github.com/Mastercard/flow/tree/main/message/message-xml'>message-xml</a>]
    model[<a href='https://github.com/Mastercard/flow/tree/main/model'>model</a>]
    report-core[<a href='https://github.com/Mastercard/flow/tree/main/report/report-core'>report-core</a>]
    report-ng[<a href='https://github.com/Mastercard/flow/tree/main/report/report-ng'>report-ng</a>]
    validation-core[<a href='https://github.com/Mastercard/flow/tree/main/validation/validation-core'>validation-core</a>]
    validation-junit4[<a href='https://github.com/Mastercard/flow/tree/main/validation/validation-junit4'>validation-junit4</a>]
    validation-junit5[<a href='https://github.com/Mastercard/flow/tree/main/validation/validation-junit5'>validation-junit5</a>]
  end
  api --> message-core
  api --> builder
  api --> model
  api --> validation-core
  api --> report-core
  assert-core --> assert-junit4
  assert-core --> assert-junit5
  assert-filter --> assert-core
  message-core --> message-bytes
  message-core --> message-http
  message-core --> message-json
  message-core --> message-sql
  message-core --> message-text
  message-core --> message-web
  message-core --> message-xml
  report-core --> assert-filter
  report-core --> duct
  report-ng --> report-core
  validation-core --> validation-junit4
  validation-core --> validation-junit5
  validation-core --> coppice
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