US07: GetEdgeTypes
3 Scenarios
User Story
Scenario: Get edge types of node type with outgoing edges
Given a node type exists with ID "doc" and has 2 outgoing edge types
When I send a GET request to /api/NodeTypes/doc/edgetypes
#UAC01
Then the response status should be 200 OK
#UAC02
And the response should contain all 2 edge types
#UAC03
And the edge types should be correctly linked