opencode/packages/core/test/mcp.test.ts
2026-06-26 03:13:23 +00:00

129 lines
4.3 KiB
TypeScript

import { describe, expect } from "bun:test"
import { Config } from "@opencode-ai/core/config"
import { MCP } from "@opencode-ai/core/mcp"
import { Context, Effect, Exit, Layer, Schema, Scope } from "effect"
import { testEffect } from "./lib/effect"
const decode = Schema.decodeUnknownSync(Config.Info)
function config(...values: unknown[]) {
return Layer.succeed(
Config.Service,
Config.Service.of({
entries: () =>
Effect.succeed(
values.map(
(value, index) =>
new Config.Document({ type: "document", path: `/config/${index}.json`, info: decode(value) }),
),
),
}),
)
}
function connector(closed: string[]) {
return Layer.succeed(
MCP.Connector,
MCP.Connector.of({
connect: (input) =>
Effect.gen(function* () {
yield* Effect.addFinalizer(() =>
Effect.sync(() => {
closed.push(input.name)
}),
)
return { name: input.name }
}),
}),
)
}
function layer(closed: string[] = []) {
return MCP.layer.pipe(
Layer.provide(connector(closed)),
Layer.provide(
config(
{
mcp: {
timeout: { startup: 10_000, request: 60_000 },
servers: {
local: { type: "local", command: ["node", "server.js"] },
disabled: { type: "remote", url: "https://example.com/mcp", disabled: true },
},
},
},
{
mcp: {
timeout: { request: 120_000 },
servers: {
local: { type: "local", command: ["bun", "server.ts"], timeout: { startup: 20_000 } },
},
},
},
),
),
)
}
const it = testEffect(layer())
describe("MCP", () => {
it.effect("materializes location configuration and timeout overrides", () =>
Effect.gen(function* () {
const mcp = yield* MCP.Service
const servers = yield* mcp.list()
expect(servers.map((server) => server.name)).toEqual(["local", "disabled"])
expect(servers[0]?.config).toMatchObject({ type: "local", command: ["bun", "server.ts"] })
expect(servers[0]?.timeout).toEqual(MCP.Timeout.make({ startup: 20_000, request: 120_000 }))
expect(servers[0]?.status).toBeUndefined()
expect(servers[1]?.timeout).toEqual(MCP.Timeout.make({ startup: 10_000, request: 120_000 }))
expect(servers[1]?.status).toEqual(MCP.StatusDisabled.make({ status: "disabled" }))
}),
)
it.effect("owns connection scopes and status transitions", () =>
Effect.gen(function* () {
const closed: string[] = []
const scope = yield* Scope.make()
const context = yield* Layer.buildWithScope(Layer.fresh(layer(closed)), scope)
const mcp = Context.get(context, MCP.Service)
yield* mcp.connect("local")
expect((yield* mcp.get("local"))?.status).toEqual(MCP.StatusConnected.make({ status: "connected" }))
yield* mcp.disconnect("local")
expect(closed).toEqual(["local"])
expect((yield* mcp.get("local"))?.status).toEqual(MCP.StatusDisabled.make({ status: "disabled" }))
yield* mcp.connect("local")
yield* Scope.close(scope, Exit.void)
expect(closed).toEqual(["local", "local"])
}),
)
it.effect("isolates connection state by location-layer instance", () =>
Effect.gen(function* () {
const firstScope = yield* Scope.make()
const secondScope = yield* Scope.make()
const first = Context.get(yield* Layer.buildWithScope(Layer.fresh(layer()), firstScope), MCP.Service)
const second = Context.get(yield* Layer.buildWithScope(Layer.fresh(layer()), secondScope), MCP.Service)
yield* first.connect("local")
expect((yield* first.get("local"))?.status?.status).toBe("connected")
expect((yield* second.get("local"))?.status).toBeUndefined()
yield* Scope.close(firstScope, Exit.void)
yield* Scope.close(secondScope, Exit.void)
}),
)
it.effect("rejects unknown and disabled servers", () =>
Effect.gen(function* () {
const mcp = yield* MCP.Service
expect(yield* mcp.connect("missing").pipe(Effect.flip)).toEqual(new MCP.NotFoundError({ name: "missing" }))
expect(yield* mcp.connect("disabled").pipe(Effect.flip)).toEqual(new MCP.DisabledError({ name: "disabled" }))
}),
)
})