eventually::command::test

Struct Scenario

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pub struct Scenario;
Expand description

A test scenario that can be used to test a Command Handler using a given-then-when canvas approach.

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impl Scenario

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pub fn given<Id, Evt>( self, events: Vec<Persisted<Id, Evt>>, ) -> ScenarioGiven<Id, Evt>
where Evt: Message,

Sets the precondition state of the system for the Scenario, which is expressed by a list of Domain Events in an Event-sourced system.

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pub fn when<Id, Evt, Cmd>( self, command: Envelope<Cmd>, ) -> ScenarioWhen<Id, Evt, Cmd>
where Evt: Message, Cmd: Message,

Specifies the Command to test in the Scenario, in the peculiar case of having a clean system.

This is a shortcut for:

Scenario::given(vec![]).when(...)

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