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Little context in behat for validate published messages according to an OpenApi and AsyncApi specification.

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PcComponentes/open-api-messaging-context

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Little context in behat for validate published messages and http responses according to an AsyncApi and OpenApi specification.

Installation

composer require --dev pccomponentes/open-api-messaging-context

Configuration

This package uses Friends Of Behat Symfony Extension, you must see how to configure your behat with this extension.

How to use

Define SpyMiddleware as a service in your test environment:

services:
  spy.message.middleware:
    class: PcComponentes\OpenApiMessagingContext\Messaging\SpyMiddleware

Add SpyMiddleware as a middleware in messenger.yaml configuration in test environment.

framework:
  messenger:
    buses:
      messenger.bus.event-broker:
        middleware:
          - spy.message.middleware
      messenger.bus.command:
        middleware:
          - spy.message.middleware

Configure the context in your behat.yml

default:
  suites:
    default:
      contexts:
        - PcComponentes\OpenApiMessagingContext\Behat\MessageValidatorOpenApiContext:
          - '%%kernel.project_dir%%'
          - '@spy.message.middleware'

And use the Then statement for validate messages:

Scenario: My awesome scenario
  Given the environment is clean
  When I send a "POST" request to "/resource/" with body:
  """
  {
    "my-awesome-data": "foo",
  }
  """
  Then the published message "pccomponentes.example.1.domain_event.resource.resource_created" should be valid according to swagger "docs/asyncapi.yml"

Your schema must be writen according to https://www.asyncapi.com/ specification.

Available for version schemas 1.2.0 and 2.0.0.

Available contexts

MessageValidatorOpenApiContext

Check the content of the dispatched message that matches with your asyncapi file:

Then the published message "pccomponentes.example.1.domain_event.resource.resource_created" should be valid according to swagger "docs/asyncapi.yml"

Check if message has dispatched:

Then the message "pccomponentes.example.1.domain_event.resource.resource_created" should be dispatched

Check if message has not been dispatched:

Then the message "pccomponentes.example.1.domain_event.resource.resource_created" should not be dispatched

Configuration:

- PcComponentes\OpenApiMessagingContext\Behat\MessageValidatorOpenApiContext:
  - '%%kernel.project_dir%%'
  - '@spy.message.middleware'

ResponseValidatorOpenApiContext

Check if http requests are documented in your openapi file:

Then the request should be valid according to OpenApi "docs/openapi.yml" with path "/your/openapi/path/"

Check if http responses are documented in your openapi file:

Then the response should be valid according to OpenApi "docs/openapi.yml" with path "/your/openapi/path/"

Additionally, you can check both the request and response with:

Then the request and response should be valid according to OpenApi "docs/openapi.yml" with path "/your/openapi/path/"

Configuration:

- PcComponentes\OpenApiMessagingContext\Behat\ResponseValidatorOpenApiContext:
  - '%%kernel.project_dir%%'

SimpleMessageContext

When step for SimpleMessage input:

When I receive a simple message with payload:
"""
{
  "data": {
    "message_id": "d2439fd8-be54-4233-ba59-fe3187620505",
    "type": "pccomponentes.example.1.command.resource.create_resource",
    "attributes": {
      "id": "3c44e76e-1369-4a95-84ac-3a78f9c1f354",
      "my_awesome_data": "foo",
    }
  }
}
"""
Then the message "pccomponentes.example.1.domain_event.resource.resource_created" should be dispatched

This is useful to combine it with Then step in MessageValidatorOpenApiContext

Configuration:

- PcComponentes\OpenApiMessagingContext\Behat\SimpleMessageContext:
  - '@messenger.bus.command' ##Your command bus with spy.message.middleware
  - '@your.simple_message_deserializer.service'

TIP If you are using pccomponentes/messenger-bundle you can use @pccom.messenger_bundle.simple_message.serializer.stream_deserializer for deserializer service

AggregateMessageContext

When step for AggregateMessage input:

When I receive an aggregate message with payload:
"""
{
  "data": {
    "message_id": "2b8c7e00-219e-4d12-8b0e-dac2cc432410",
    "type": "pccomponentes.example.1.domain_event.resource.resource_created",
    "occurred_on": "1554900327",
    "attributes": {
      "aggregate_id": "0e7c57f8-d679-4605-ba27-3008b9636a0a",
      "status": "OPEN"
    }
  }
}
"""
Then the message "pccomponentes.example.1.command.resource.create_resource_projection" should be dispatched

This is useful to combine it with Then step in MessageValidatorOpenApiContext

Configuration:

- PcComponentes\OpenApiMessagingContext\Behat\AggregateMessageContext:
  - '@messenger.bus.events' ## Your event bus with spy.message.middleware
  - '@your.aggregate_message_deserializer.service'

TIP If you are using pccomponentes/messenger-bundle you can use @pccom.messenger_bundle.aggregate_message.serializer.stream_deserializer for deserializer service

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Little context in behat for validate published messages according to an OpenApi and AsyncApi specification.

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