selection

Documentation

Overview

Package selection resolves scenario endpoint selectors against the endpoint set: names, oneOf/allOf/any modes, and tag expressions like tags(all(10g, not(win))). See docs/scenario-schema.md and DESIGN.md §9.

Index

• func Pick(pool []scenario.Endpoint, exclude string, r *rand.Rand) (scenario.Endpoint, bool)
• func Resolve(sel scenario.Selector, endpoints []scenario.Endpoint) ([]scenario.Endpoint, error)

Functions

func Pick

func Pick(pool []scenario.Endpoint, exclude string, r *rand.Rand) (scenario.Endpoint, bool)

Pick chooses one endpoint from a pool at random, excluding the named endpoint (e.g. to keep client != server). ok is false if the pool is empty after exclusion.

func Resolve

func Resolve(sel scenario.Selector, endpoints []scenario.Endpoint) ([]scenario.Endpoint, error)

Resolve returns the endpoints a selector matches (the candidate pool). It is deterministic; random "pick one" and client != server exclusion are applied separately by Pick.