| 1 | /** |
| 2 | * The `TestRunner` module assembles the smallest cluster runtime useful in |
| 3 | * tests: `Sharding` backed by in-memory message storage, in-memory runner |
| 4 | * storage, no-op runner transport, and always-healthy runner checks. It lets |
| 5 | * code that depends on cluster services exercise registration, shard |
| 6 | * coordination, and mailbox persistence without starting RPC servers or |
| 7 | * external databases. |
| 8 | * |
| 9 | * @stability unstable |
| 10 | * @since 4.0.0 |
| 11 | */ |
| 12 | import * as Layer from "../Layer.ts" |
| 13 | import * as MessageStorage from "./MessageStorage.ts" |
| 14 | import * as RunnerHealth from "./RunnerHealth.ts" |
| 15 | import * as Runners from "./Runners.ts" |
| 16 | import * as RunnerStorage from "./RunnerStorage.ts" |
| 17 | import * as Sharding from "./Sharding.ts" |
| 18 | import * as ShardingConfig from "./ShardingConfig.ts" |
| 19 | |
| 20 | /** |
| 21 | * Layer that provides an in-memory cluster for testing. |
| 22 | * |
| 23 | * **Details** |
| 24 | * |
| 25 | * `MessageStorage` and `RunnerStorage` are backed by in-memory drivers. |
| 26 | * |
| 27 | * @stability unstable |
| 28 | * @category layers |
| 29 | * @since 4.0.0 |
| 30 | */ |
| 31 | export const layer: Layer.Layer< |
| 32 | Sharding.Sharding | Runners.Runners | MessageStorage.MessageStorage | MessageStorage.MemoryDriver |
| 33 | > = Sharding.layer.pipe( |
| 34 | Layer.provideMerge(Runners.layerNoop), |
| 35 | Layer.provideMerge(MessageStorage.layerMemory), |
| 36 | Layer.provide([RunnerStorage.layerMemory, RunnerHealth.layerNoop]), |
| 37 | Layer.provide(ShardingConfig.layer()) |
| 38 | ) |