opencode/packages/core/test/plugin/provider-togetherai.test.ts

import { describe, expect } from "bun:test"
import type { LanguageModelV3 } from "@ai-sdk/provider"
import { Effect } from "effect"
import { ModelV2 } from "@opencode-ai/core/model"
import { PluginV2 } from "@opencode-ai/core/plugin"
import { PluginHost } from "@opencode-ai/core/plugin/host"
import { TogetherAIPlugin } from "@opencode-ai/core/plugin/provider/togetherai"
import { ProviderV2 } from "@opencode-ai/core/provider"
import { testEffect } from "../lib/effect"
import { PluginTestLayer } from "./fixture"

const it = testEffect(PluginTestLayer)

const addPlugin = Effect.fn(function* () {
  const plugin = yield* PluginV2.Service
  const host = yield* PluginHost.make()
  yield* plugin.add({ id: TogetherAIPlugin.id, effect: TogetherAIPlugin.effect(host) })
})

function fakeSelectorSdk(calls: string[]) {
  const make = (method: string) => (id: string) => {
    calls.push(`${method}:${id}`)
    return { modelId: id, provider: method, specificationVersion: "v3" } as unknown as LanguageModelV3
  }
  return {
    responses: make("responses"),
    messages: make("messages"),
    chat: make("chat"),
    languageModel: make("languageModel"),
  }
}

describe("TogetherAIPlugin", () => {
  it.effect("creates a TogetherAI SDK for @ai-sdk/togetherai", () =>
    Effect.gen(function* () {
      const plugin = yield* PluginV2.Service
      yield* addPlugin()
      const result = yield* plugin.trigger(
        "aisdk.sdk",
        {
          model: new ModelV2.Info({
            ...ModelV2.Info.empty(ProviderV2.ID.make("togetherai"), ModelV2.ID.make("model")),
            api: { id: ModelV2.ID.make("model"), type: "aisdk", package: "test-provider" },
          }),
          package: "@ai-sdk/togetherai",
          options: { name: "togetherai" },
        },
        {},
      )
      expect(result.sdk).toBeDefined()
    }),
  )

  it.effect("matches the old bundled provider package exactly", () =>
    Effect.gen(function* () {
      const plugin = yield* PluginV2.Service
      yield* addPlugin()

      const ignored = yield* plugin.trigger(
        "aisdk.sdk",
        {
          model: new ModelV2.Info({
            ...ModelV2.Info.empty(ProviderV2.ID.make("togetherai"), ModelV2.ID.make("model")),
            api: { id: ModelV2.ID.make("model"), type: "aisdk", package: "test-provider" },
          }),
          package: "file:///tmp/@ai-sdk/togetherai-provider.js",
          options: { name: "togetherai" },
        },
        {},
      )
      expect(ignored.sdk).toBeUndefined()

      const result = yield* plugin.trigger(
        "aisdk.sdk",
        {
          model: new ModelV2.Info({
            ...ModelV2.Info.empty(ProviderV2.ID.make("togetherai"), ModelV2.ID.make("model")),
            api: { id: ModelV2.ID.make("model"), type: "aisdk", package: "test-provider" },
          }),
          package: "@ai-sdk/togetherai",
          options: { name: "togetherai" },
        },
        {},
      )
      expect(result.sdk).toBeDefined()
    }),
  )

  it.effect("creates bundled TogetherAI SDKs for custom provider IDs", () =>
    Effect.gen(function* () {
      const plugin = yield* PluginV2.Service
      yield* addPlugin()

      const result = yield* plugin.trigger(
        "aisdk.sdk",
        {
          model: new ModelV2.Info({
            ...ModelV2.Info.empty(ProviderV2.ID.make("custom-togetherai"), ModelV2.ID.make("model")),
            api: { id: ModelV2.ID.make("model"), type: "aisdk", package: "test-provider" },
          }),
          package: "@ai-sdk/togetherai",
          options: { name: "custom-togetherai" },
        },
        {},
      )

      expect(result.sdk.languageModel("model").provider).toBe("togetherai.chat")
    }),
  )

  it.effect("defaults language selection to sdk.languageModel with the model API ID", () =>
    Effect.gen(function* () {
      const plugin = yield* PluginV2.Service
      const calls: string[] = []
      yield* addPlugin()

      const result = yield* plugin.trigger(
        "aisdk.language",
        {
          model: new ModelV2.Info({
            ...ModelV2.Info.empty(
              ProviderV2.ID.make("togetherai"),
              ModelV2.ID.make("meta-llama/Llama-3.3-70B-Instruct-Turbo"),
            ),
            api: {
              id: ModelV2.ID.make("meta-llama/Llama-3.3-70B-Instruct-Turbo"),
              type: "aisdk",
              package: "test-provider",
            },
          }),
          sdk: { languageModel: fakeSelectorSdk(calls).languageModel },
          options: {},
        },
        {},
      )

      expect(result.language).toBeUndefined()
      expect(calls).toEqual([])
      expect(result.language ?? fakeSelectorSdk(calls).languageModel(result.model.api.id)).toBeDefined()
      expect(calls).toEqual(["languageModel:meta-llama/Llama-3.3-70B-Instruct-Turbo"])
    }),
  )
})