Support sequence flows in hasPassedElement and hasPassedElementsInOrder

[remcowesterhoud]

Description

It could be valuable for a user to test if they have taken a specific sequence flow. Currently we have no way to do this. Users would expect hasPassedElement and hasPassedElementsInOrder could be used for this, however these assertions do not include sequence flow.

Expected behaviour

hasPassedElement and hasPassedElementsInOrder should be able to assert sequence flows.

Solution

Both methods have a similar filter:

 StreamFilter.processInstance(recordStream)
            .withProcessInstanceKey(actual)
            .withRejectionType(RejectionType.NULL_VAL)
            .withElementIdIn(elementIds)
            .withIntent(ProcessInstanceIntent.ELEMENT_COMPLETED)

The intent here causes sequence flows to be excluded, as we never write an ELEMENT_COMPLETED event for these. We should add a way to filter for multiple intents and turn this into:

.withIntents(ProcessInstanceIntent.ELEMENT_COMPLETED, ProcessInstanceIntent.SEQUENCE_FLOW_TAKEN)