Function assertPath

repos/effect/packages/effect/test/Pathfinding.test.ts:75–95

(
  terrain: Terrain,
  actual: Option.Option<Graph.PathResult<number>>,
  sequence: Sequence
)

 * Assert that the result path matches the expected path.
 */
const assertPath = (
  terrain: Terrain,
  actual: Option.Option<Graph.PathResult<number>>,
  sequence: Sequence
) => {
  const derived = sequenceFromPath(terrain, actual)
  if (derived !== sequence) {
    let message = "Path finding result did not match the expected sequence"
    message += `\n`
    message += `\nExpected: ${sequence}`
    message += `\nActual:   ${derived}`
    message += `\n`
    message += `\nExpected Path:`
    message += `\n${printSolution(terrain, pathFromSequence(terrain, sequence))}`
    message += `\n`
    message += `\nActual Path:`
    message += `\n${printSolution(terrain, Option.getOrUndefined(actual))}`

    throw new AssertionError({ message, stackStartFn: assertPath })
  }
}

type Sequence = `${number}:${number};${string}`