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import { DEFAULT_GEMINI_EMBEDDING_MODEL } from "./embeddings-gemini.js";
vi.mock("../agents/model-auth.js", () => ({
resolveApiKeyForProvider: vi.fn(),
requireApiKey: (auth: { apiKey?: string; mode?: string }, provider: string) => {
if (auth?.apiKey) {
return auth.apiKey;
}
throw new Error(`No API key resolved for provider "${provider}" (auth mode: ${auth?.mode}).`);
},
}));
const createFetchMock = () =>
vi.fn(async () => ({
ok: true,
status: 200,
json: async () => ({ data: [{ embedding: [1, 2, 3] }] }),
})) as unknown as typeof fetch;
describe("embedding provider remote overrides", () => {
afterEach(() => {
vi.resetAllMocks();
vi.resetModules();
vi.unstubAllGlobals();
});
it("uses remote baseUrl/apiKey and merges headers", async () => {
const fetchMock = createFetchMock();
vi.stubGlobal("fetch", fetchMock);
const { createEmbeddingProvider } = await import("./embeddings.js");
const authModule = await import("../agents/model-auth.js");
vi.mocked(authModule.resolveApiKeyForProvider).mockResolvedValue({
apiKey: "provider-key",
mode: "api-key",
source: "test",
});
const cfg = {
models: {
providers: {
openai: {
baseUrl: "https://provider.example/v1",
headers: {
"X-Provider": "p",
"X-Shared": "provider",
},
},
},
},
};
const result = await createEmbeddingProvider({
config: cfg as never,
provider: "openai",
remote: {
baseUrl: "https://remote.example/v1",
apiKey: " remote-key ",
headers: {
"X-Shared": "remote",
"X-Remote": "r",
},
},
model: "text-embedding-3-small",
fallback: "openai",
});
await result.provider.embedQuery("hello");
expect(authModule.resolveApiKeyForProvider).not.toHaveBeenCalled();
const [url, init] = fetchMock.mock.calls[0] ?? [];
expect(url).toBe("https://remote.example/v1/embeddings");
const headers = (init?.headers ?? {}) as Record<string, string>;
expect(headers.Authorization).toBe("Bearer remote-key");
expect(headers["Content-Type"]).toBe("application/json");
expect(headers["X-Provider"]).toBe("p");
expect(headers["X-Shared"]).toBe("remote");
expect(headers["X-Remote"]).toBe("r");
});
it("falls back to resolved api key when remote apiKey is blank", async () => {
const fetchMock = createFetchMock();
vi.stubGlobal("fetch", fetchMock);
const { createEmbeddingProvider } = await import("./embeddings.js");
const authModule = await import("../agents/model-auth.js");
vi.mocked(authModule.resolveApiKeyForProvider).mockResolvedValue({
apiKey: "provider-key",
mode: "api-key",
source: "test",
});
const cfg = {
models: {
providers: {
openai: {
baseUrl: "https://provider.example/v1",
},
},
},
};
const result = await createEmbeddingProvider({
config: cfg as never,
provider: "openai",
remote: {
baseUrl: "https://remote.example/v1",
apiKey: " ",
},
model: "text-embedding-3-small",
fallback: "openai",
});
await result.provider.embedQuery("hello");
expect(authModule.resolveApiKeyForProvider).toHaveBeenCalledTimes(1);
const headers = (fetchMock.mock.calls[0]?.[1]?.headers as Record<string, string>) ?? {};
expect(headers.Authorization).toBe("Bearer provider-key");
});
it("builds Gemini embeddings requests with api key header", async () => {
const fetchMock = vi.fn(async () => ({
ok: true,
status: 200,
json: async () => ({ embedding: { values: [1, 2, 3] } }),
})) as unknown as typeof fetch;
vi.stubGlobal("fetch", fetchMock);
const { createEmbeddingProvider } = await import("./embeddings.js");
const authModule = await import("../agents/model-auth.js");
vi.mocked(authModule.resolveApiKeyForProvider).mockResolvedValue({
apiKey: "provider-key",
mode: "api-key",
source: "test",
});
const cfg = {
models: {
providers: {
google: {
baseUrl: "https://generativelanguage.googleapis.com/v1beta",
},
},
},
};
const result = await createEmbeddingProvider({
config: cfg as never,
provider: "gemini",
remote: {
apiKey: "gemini-key",
},
model: "text-embedding-004",
fallback: "openai",
});
await result.provider.embedQuery("hello");
const [url, init] = fetchMock.mock.calls[0] ?? [];
expect(url).toBe(
"https://generativelanguage.googleapis.com/v1beta/models/text-embedding-004:embedContent",
);
const headers = (init?.headers ?? {}) as Record<string, string>;
expect(headers["x-goog-api-key"]).toBe("gemini-key");
expect(headers["Content-Type"]).toBe("application/json");
});
});
describe("embedding provider auto selection", () => {
afterEach(() => {
vi.resetAllMocks();
vi.resetModules();
vi.unstubAllGlobals();
});
it("prefers openai when a key resolves", async () => {
const { createEmbeddingProvider } = await import("./embeddings.js");
const authModule = await import("../agents/model-auth.js");
vi.mocked(authModule.resolveApiKeyForProvider).mockImplementation(async ({ provider }) => {
if (provider === "openai") {
return { apiKey: "openai-key", source: "env: OPENAI_API_KEY", mode: "api-key" };
}
throw new Error(`No API key found for provider "${provider}".`);
});
const result = await createEmbeddingProvider({
config: {} as never,
provider: "auto",
model: "",
fallback: "none",
});
expect(result.requestedProvider).toBe("auto");
expect(result.provider.id).toBe("openai");
});
it("uses gemini when openai is missing", async () => {
const fetchMock = vi.fn(async () => ({
ok: true,
status: 200,
json: async () => ({ embedding: { values: [1, 2, 3] } }),
})) as unknown as typeof fetch;
vi.stubGlobal("fetch", fetchMock);
const { createEmbeddingProvider } = await import("./embeddings.js");
const authModule = await import("../agents/model-auth.js");
vi.mocked(authModule.resolveApiKeyForProvider).mockImplementation(async ({ provider }) => {
if (provider === "openai") {
throw new Error('No API key found for provider "openai".');
}
if (provider === "google") {
return { apiKey: "gemini-key", source: "env: GEMINI_API_KEY", mode: "api-key" };
}
throw new Error(`Unexpected provider ${provider}`);
});
const result = await createEmbeddingProvider({
config: {} as never,
provider: "auto",
model: "",
fallback: "none",
});
expect(result.requestedProvider).toBe("auto");
expect(result.provider.id).toBe("gemini");
await result.provider.embedQuery("hello");
const [url] = fetchMock.mock.calls[0] ?? [];
expect(url).toBe(
`https://generativelanguage.googleapis.com/v1beta/models/${DEFAULT_GEMINI_EMBEDDING_MODEL}:embedContent`,
);
});
it("keeps explicit model when openai is selected", async () => {
const fetchMock = vi.fn(async () => ({
ok: true,
status: 200,
json: async () => ({ data: [{ embedding: [1, 2, 3] }] }),
})) as unknown as typeof fetch;
vi.stubGlobal("fetch", fetchMock);
const { createEmbeddingProvider } = await import("./embeddings.js");
const authModule = await import("../agents/model-auth.js");
vi.mocked(authModule.resolveApiKeyForProvider).mockImplementation(async ({ provider }) => {
if (provider === "openai") {
return { apiKey: "openai-key", source: "env: OPENAI_API_KEY", mode: "api-key" };
}
throw new Error(`Unexpected provider ${provider}`);
});
const result = await createEmbeddingProvider({
config: {} as never,
provider: "auto",
model: "text-embedding-3-small",
fallback: "none",
});
expect(result.requestedProvider).toBe("auto");
expect(result.provider.id).toBe("openai");
await result.provider.embedQuery("hello");
const [url, init] = fetchMock.mock.calls[0] ?? [];
expect(url).toBe("https://api.openai.com/v1/embeddings");
const payload = JSON.parse(String(init?.body ?? "{}")) as { model?: string };
expect(payload.model).toBe("text-embedding-3-small");
});
});
describe("embedding provider local fallback", () => {
afterEach(() => {
vi.resetAllMocks();
vi.resetModules();
vi.unstubAllGlobals();
vi.doUnmock("./node-llama.js");
});
it("falls back to openai when node-llama-cpp is missing", async () => {
vi.doMock("./node-llama.js", () => ({
importNodeLlamaCpp: async () => {
throw Object.assign(new Error("Cannot find package 'node-llama-cpp'"), {
code: "ERR_MODULE_NOT_FOUND",
});
},
}));
const fetchMock = createFetchMock();
vi.stubGlobal("fetch", fetchMock);
const { createEmbeddingProvider } = await import("./embeddings.js");
const authModule = await import("../agents/model-auth.js");
vi.mocked(authModule.resolveApiKeyForProvider).mockResolvedValue({
apiKey: "provider-key",
mode: "api-key",
source: "test",
});
const result = await createEmbeddingProvider({
config: {} as never,
provider: "local",
model: "text-embedding-3-small",
fallback: "openai",
});
expect(result.provider.id).toBe("openai");
expect(result.fallbackFrom).toBe("local");
expect(result.fallbackReason).toContain("node-llama-cpp");
});
it("throws a helpful error when local is requested and fallback is none", async () => {
vi.doMock("./node-llama.js", () => ({
importNodeLlamaCpp: async () => {
throw Object.assign(new Error("Cannot find package 'node-llama-cpp'"), {
code: "ERR_MODULE_NOT_FOUND",
});
},
}));
const { createEmbeddingProvider } = await import("./embeddings.js");
await expect(
createEmbeddingProvider({
config: {} as never,
provider: "local",
model: "text-embedding-3-small",
fallback: "none",
}),
).rejects.toThrow(/optional dependency node-llama-cpp/i);
});
});
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