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/**
* Integration tests for the plugin lifecycle.
*
* These test the wiring in index.mjs — the ordering of authorize → callback → loader,
* the accountManager initialization, and the fetch interceptor retry loop.
*
* We mock external dependencies (fetch, readline, storage fs) but exercise
* the real plugin code paths.
*/
import { describe, it, expect, vi, beforeEach, afterEach } from "vitest";
import { promises as fs } from "node:fs";
import { join } from "node:path";
import { tmpdir } from "node:os";
// ---------------------------------------------------------------------------
// Mocks — must be set up before importing the module under test
// ---------------------------------------------------------------------------
// Mock readline (used by promptAccountMenu / promptManageAccounts)
vi.mock("node:readline/promises", () => ({
createInterface: vi.fn(() => ({
question: vi.fn().mockResolvedValue("a"),
close: vi.fn(),
})),
}));
// Mock storage — we control what's on "disk"
vi.mock("./lib/storage.mjs", async (importOriginal) => {
const original = await importOriginal();
const loadAccounts = vi.fn().mockResolvedValue(null);
const saveAccounts = vi.fn().mockResolvedValue(undefined);
const clearAccounts = vi.fn().mockResolvedValue(undefined);
const saveAndSync = vi.fn(async (stored, options = {}) => {
await saveAccounts(stored);
const { syncOpenCodeAuthFromStorage } = await import("./lib/opencode-auth.mjs");
await syncOpenCodeAuthFromStorage(stored, { clearIfMissing: true, ...options });
});
return {
...original,
hasAccountsStorageFile: vi.fn(() => false),
loadAccounts,
saveAccounts,
saveAndSync,
clearAccounts,
};
});
vi.mock("./lib/refresh-lock.mjs", () => ({
acquireRefreshLock: vi.fn().mockResolvedValue({ acquired: true, lockPath: "/tmp/opencode-test.lock" }),
releaseRefreshLock: vi.fn().mockResolvedValue(undefined),
}));
vi.mock("./lib/opencode-auth.mjs", () => ({
clearOpenCodeAuth: vi.fn().mockResolvedValue(undefined),
getOpenCodeAuth: vi.fn().mockResolvedValue(null),
getOpenCodeSyncAccount: vi.fn((storage) => storage?.accounts?.[storage?.activeIndex ?? 0] || null),
setOpenCodeAuth: vi.fn().mockResolvedValue(undefined),
syncOpenCodeAuthFromStorage: vi.fn().mockResolvedValue(undefined),
}));
// Mock config — always return defaults
vi.mock("./lib/config.mjs", async (importOriginal) => {
const original = await importOriginal();
return {
...original,
loadConfig: vi.fn(() => ({
...original.DEFAULT_CONFIG,
idle_refresh: { ...original.DEFAULT_CONFIG.idle_refresh, enabled: false },
})),
};
});
// Mock global fetch for OAuth token exchange and API requests
const mockFetch = vi.fn();
vi.stubGlobal("fetch", mockFetch);
import { AnthropicAuthPlugin } from "./index.mjs";
import { ANTHROPIC_REPLACEMENT_PROMPT } from "./lib/anthropic-system-prompt.mjs";
import { saveAccounts, loadAccounts, clearAccounts } from "./lib/storage.mjs";
import { acquireRefreshLock, releaseRefreshLock } from "./lib/refresh-lock.mjs";
import {
clearOpenCodeAuth,
getOpenCodeAuth,
setOpenCodeAuth,
syncOpenCodeAuthFromStorage,
} from "./lib/opencode-auth.mjs";
import { loadConfig, DEFAULT_CONFIG } from "./lib/config.mjs";
import { computeBillingFingerprint } from "./lib/request-headers.mjs";
import { signSerializedBodyCch } from "./lib/cch-signing.mjs";
import { makeAccountsData as makeFixtureAccountsData } from "./test/helpers/accounts-fixtures.mjs";
const xdgConfigHome = join(tmpdir(), `opencode-anthropic-auth-index-test-${process.pid}`);
// ---------------------------------------------------------------------------
// Helpers
// ---------------------------------------------------------------------------
/** Restore mocks that are cleared by vi.resetAllMocks() but required by most tests. */
function restoreDefaultMocks() {
acquireRefreshLock.mockResolvedValue({
acquired: true,
lockPath: "/tmp/opencode-test.lock",
owner: "test",
lockInode: null,
});
releaseRefreshLock.mockResolvedValue(undefined);
clearOpenCodeAuth.mockResolvedValue(undefined);
getOpenCodeAuth.mockResolvedValue(null);
setOpenCodeAuth.mockResolvedValue(undefined);
syncOpenCodeAuthFromStorage.mockResolvedValue(undefined);
}
function makeClient() {
return {
auth: {
set: vi.fn().mockResolvedValue(undefined),
},
session: {
prompt: vi.fn().mockResolvedValue(undefined),
},
tui: {
showToast: vi.fn().mockResolvedValue(undefined),
},
};
}
function makeProvider() {
return {
models: {
"claude-sonnet": {
cost: { input: 3, output: 15, cache: { read: 0.3, write: 3.75 } },
},
},
};
}
function extractCcVersionFromBillingHeader(text) {
return text.match(/cc_version=([\d.a-z]+)/)?.[1] ?? null;
}
function parseServerVisibleUserId(serializedBody) {
const body = JSON.parse(serializedBody);
return {
body,
userId: JSON.parse(body.metadata.user_id),
};
}
/**
* Poll until condition passes or timeout.
* @param {() => void} assertion
* @param {number} [timeoutMs]
*/
async function waitForAssertion(assertion, timeoutMs = 500) {
const started = Date.now();
while (true) {
try {
assertion();
return;
} catch (err) {
if (Date.now() - started >= timeoutMs) throw err;
await new Promise((resolve) => setTimeout(resolve, 10));
}
}
}
/**
* Keep this suite's refresh token shape as `refresh-N` while using shared fixtures.
*/
const tokenFactory = (index) => `refresh-${index + 1}`;
/** Build a stored accounts data structure with N accounts. */
function makeAccountsData(accountOverrides = [{}], extra = {}) {
const normalizedOverrides = accountOverrides.map((overrides, index) =>
Object.prototype.hasOwnProperty.call(overrides, "accountUuid")
? overrides
: { accountUuid: `account-uuid-${index + 1}`, ...overrides },
);
return makeFixtureAccountsData(normalizedOverrides, extra, { tokenFactory });
}
/**
* Bootstrap a plugin with loaded accounts and return the fetch interceptor.
* Accepts an array of account overrides (one per account) and optional auth overrides.
*/
async function setupFetchFn(client, accountOverrides = [{}], authOverrides = {}) {
const normalizedOverrides = accountOverrides.map((overrides, index) =>
Object.prototype.hasOwnProperty.call(overrides, "accountUuid")
? overrides
: { accountUuid: `account-uuid-${index + 1}`, ...overrides },
);
const data = makeAccountsData(normalizedOverrides);
loadAccounts.mockResolvedValue(data);
saveAccounts.mockResolvedValue(undefined);
const plugin = await AnthropicAuthPlugin({ client });
const getAuth = vi.fn().mockResolvedValue({
type: "oauth",
refresh: data.accounts[0].refreshToken,
access: `access-1`,
expires: Date.now() + 3600_000,
accountUuid: data.accounts[0].accountUuid,
...authOverrides,
});
const result = await plugin.auth.loader(getAuth, makeProvider());
return result.fetch;
}
/** Shorthand for a successful token refresh mock response */
function mockTokenRefresh(token = "access-new", refresh = "refresh-new") {
return {
ok: true,
json: async () => ({
access_token: token,
refresh_token: refresh,
expires_in: 3600,
}),
};
}
beforeEach(() => {
vi.resetAllMocks();
restoreDefaultMocks();
process.env.XDG_CONFIG_HOME = xdgConfigHome;
});
afterEach(async () => {
await fs.rm(xdgConfigHome, { recursive: true, force: true });
});
// ---------------------------------------------------------------------------
// Plugin lifecycle: authorize → callback → loader ordering
// ---------------------------------------------------------------------------
describe("plugin lifecycle", () => {
let client;
beforeEach(() => {
client = makeClient();
loadAccounts.mockResolvedValue(null);
saveAccounts.mockResolvedValue(undefined);
getOpenCodeAuth.mockResolvedValue(null);
setOpenCodeAuth.mockResolvedValue(undefined);
syncOpenCodeAuthFromStorage.mockResolvedValue(undefined);
});
it("authorize callback creates accounts file on first login (accountManager starts null)", async () => {
// Mock the OAuth token exchange response
mockFetch.mockResolvedValueOnce({
ok: true,
json: async () => ({
access_token: "access-from-oauth",
refresh_token: "refresh-from-oauth",
expires_in: 3600,
}),
});
const plugin = await AnthropicAuthPlugin({ client });
const method = plugin.auth.methods[0]; // "Claude Pro/Max (multi-account)"
// Step 1: authorize() — returns URL + callback
const authResult = await method.authorize();
expect(authResult.url).toContain("claude.ai/oauth/authorize");
expect(authResult.method).toBe("code");
// Step 2: callback() — user pastes the code
// At this point, loader() has NOT been called yet, so accountManager is null.
const credentials = await authResult.callback("auth-code#state");
expect(credentials.type).toBe("success");
expect(credentials.refresh).toBe("refresh-from-oauth");
expect(credentials.access).toBe("access-from-oauth");
// KEY ASSERTION: saveAccounts must have been called — the accounts file is created
expect(saveAccounts).toHaveBeenCalledTimes(1);
expect(saveAccounts).toHaveBeenCalledWith(
expect.objectContaining({
version: 1,
accounts: expect.arrayContaining([
expect.objectContaining({
refreshToken: "refresh-from-oauth",
enabled: true,
}),
]),
}),
);
});
it("syncs OpenCode auth from stored accounts at plugin startup", async () => {
const stored = makeAccountsData([{ refreshToken: "stored-refresh", access: "stored-access" }]);
loadAccounts.mockResolvedValue(stored);
await AnthropicAuthPlugin({ client });
expect(syncOpenCodeAuthFromStorage).toHaveBeenCalledWith(stored);
});
it("loader bootstraps from auth.json and saves accounts file immediately", async () => {
const plugin = await AnthropicAuthPlugin({ client });
const provider = makeProvider();
// Simulate OpenCode calling loader() after auth is stored
const getAuth = vi.fn().mockResolvedValue({
type: "oauth",
refresh: "existing-refresh",
access: "existing-access",
expires: Date.now() + 3600_000,
});
const result = await plugin.auth.loader(getAuth, provider);
// Should have saved the bootstrapped account immediately
expect(saveAccounts).toHaveBeenCalledTimes(1);
expect(saveAccounts).toHaveBeenCalledWith(
expect.objectContaining({
version: 1,
accounts: expect.arrayContaining([
expect.objectContaining({
refreshToken: "existing-refresh",
}),
]),
}),
);
// Should return fetch interceptor
expect(result.fetch).toBeTypeOf("function");
// Model costs should be zeroed
expect(provider.models["claude-sonnet"].cost.input).toBe(0);
expect(provider.models["claude-sonnet"].cost.output).toBe(0);
});
it("loader bootstraps from stored accounts when built-in auth is not oauth", async () => {
const stored = makeAccountsData([
{ refreshToken: "stored-refresh", access: "stored-access", expires: Date.now() + 3600_000, enabled: true },
]);
loadAccounts.mockResolvedValue(stored);
const plugin = await AnthropicAuthPlugin({ client });
const provider = makeProvider();
const getAuth = vi.fn().mockResolvedValue({ type: "none" });
const result = await plugin.auth.loader(getAuth, provider);
expect(result.fetch).toBeTypeOf("function");
});
it("loader bootstraps from persisted OpenCode auth when built-in auth is not oauth", async () => {
loadAccounts.mockResolvedValue(null);
getOpenCodeAuth.mockResolvedValue({
type: "oauth",
refresh: "compat-refresh",
access: "compat-access",
expires: Date.now() + 3600_000,
});
const plugin = await AnthropicAuthPlugin({ client });
const provider = makeProvider();
const getAuth = vi.fn().mockResolvedValue({ type: "none" });
const result = await plugin.auth.loader(getAuth, provider);
expect(result.fetch).toBeTypeOf("function");
expect(saveAccounts).toHaveBeenCalledTimes(1);
expect(saveAccounts).toHaveBeenCalledWith(
expect.objectContaining({
accounts: expect.arrayContaining([expect.objectContaining({ refreshToken: "compat-refresh" })]),
}),
);
});
it("first request can use stored account auth immediately after callback success", async () => {
loadAccounts.mockResolvedValueOnce(null);
mockFetch.mockResolvedValueOnce({
ok: true,
json: async () => ({
access_token: "access-from-oauth",
refresh_token: "refresh-from-oauth",
expires_in: 3600,
}),
});
const plugin = await AnthropicAuthPlugin({ client });
const method = plugin.auth.methods[0];
const authResult = await method.authorize();
const credentials = await authResult.callback("auth-code#state");
expect(credentials.type).toBe("success");
loadAccounts.mockResolvedValue(
makeAccountsData([
{ refreshToken: "refresh-from-oauth", access: "access-from-oauth", expires: Date.now() + 3600_000 },
]),
);
const provider = makeProvider();
const getAuth = vi.fn().mockResolvedValue({ type: "none" });
const result = await plugin.auth.loader(getAuth, provider);
expect(result.fetch).toBeTypeOf("function");
mockFetch.mockResolvedValueOnce(new Response(JSON.stringify({ ok: true }), { status: 200 }));
await result.fetch("https://api.anthropic.com/v1/messages?beta=true", {
method: "POST",
headers: new Headers(),
body: JSON.stringify({ model: "claude-sonnet-4-5", messages: [{ role: "user", content: "hi" }] }),
});
const [, requestInit] = mockFetch.mock.calls[mockFetch.mock.calls.length - 1];
const headers = new Headers(requestInit.headers);
expect(headers.get("authorization")).toBe("Bearer access-from-oauth");
});
it("second login adds to existing account pool", async () => {
// First login already happened — accounts file exists
loadAccounts.mockResolvedValue(makeAccountsData([{ refreshToken: "first-refresh", lastUsed: 2000 }]));
const plugin = await AnthropicAuthPlugin({ client });
// Run loader first (simulating normal startup after first login)
const getAuth = vi.fn().mockResolvedValue({
type: "oauth",
refresh: "first-refresh",
access: "first-access",
expires: Date.now() + 3600_000,
});
await plugin.auth.loader(getAuth, makeProvider());
// Reset mock to track only the second login's save
saveAccounts.mockClear();
syncOpenCodeAuthFromStorage.mockClear();
// Now simulate second OAuth login
// loadAccounts returns existing accounts — but accountManager is already loaded,
// so the menu check (stored && stored.accounts.length > 0 && accountManager) is true.
// We need to mock readline to return "a" (add) — already done in mock setup.
// Mock the OAuth exchange for second account
mockFetch.mockResolvedValueOnce({
ok: true,
json: async () => ({
access_token: "second-access",
refresh_token: "second-refresh",
expires_in: 3600,
}),
});
const method = plugin.auth.methods[0];
const authResult = await method.authorize();
const credentials = await authResult.callback("second-code#state");
expect(credentials.type).toBe("success");
expect(credentials.refresh).toBe("second-refresh");
// Should have saved with BOTH accounts
expect(saveAccounts).toHaveBeenCalled();
const savedData = saveAccounts.mock.calls[saveAccounts.mock.calls.length - 1][0];
expect(savedData.accounts).toHaveLength(2);
expect(savedData.accounts[0].refreshToken).toBe("first-refresh");
expect(savedData.accounts[1].refreshToken).toBe("second-refresh");
});
it("loader returns empty object for non-oauth auth", async () => {
const plugin = await AnthropicAuthPlugin({ client });
const getAuth = vi.fn().mockResolvedValue({
type: "api",
key: "sk-ant-xxx",
});
const result = await plugin.auth.loader(getAuth, makeProvider());
expect(result).toEqual({});
expect(saveAccounts).not.toHaveBeenCalled();
});
});
// ---------------------------------------------------------------------------
// Slash command hooks (/anthropic)
// ---------------------------------------------------------------------------
describe("slash commands", () => {
let client;
let plugin;
/**
* Run /anthropic command hook and return the last session message.
* @param {string} args
* @returns {Promise<string>}
*/
async function runAnthropic(args) {
client.session.prompt.mockClear();
await expect(
plugin["command.execute.before"]({
command: "anthropic",
arguments: args,
sessionID: "session-1",
}),
).rejects.toThrow("__ANTHROPIC_COMMAND_HANDLED__");
const calls = client.session.prompt.mock.calls;
expect(calls.length).toBeGreaterThan(0);
return calls[calls.length - 1][0].body.parts[0].text;
}
beforeEach(async () => {
vi.resetAllMocks();
restoreDefaultMocks();
client = makeClient();
loadAccounts.mockResolvedValue(null);
saveAccounts.mockResolvedValue(undefined);
plugin = await AnthropicAuthPlugin({ client });
});
it("registers /anthropic command in config hook", async () => {
const cfg = { command: {} };
await plugin.config(cfg);
expect(cfg.command.anthropic).toEqual(
expect.objectContaining({
template: "/anthropic",
description: expect.stringContaining("Manage Anthropic"),
}),
);
});
it("shows list view by default", async () => {
const text = await runAnthropic("");
expect(text).toContain("▣ Anthropic (error)");
expect(text).toContain("No accounts configured");
});
it("routes usage alias to CLI list", async () => {
loadAccounts.mockResolvedValue(makeAccountsData([{ refreshToken: "refresh-1", enabled: true }]));
const text = await runAnthropic("usage");
expect(text).toContain("Anthropic Multi-Account Status");
});
it("supports login alias for slash OAuth flow", async () => {
const text = await runAnthropic("ln");
expect(text).toContain("Anthropic OAuth");
expect(text).toContain("Started login flow");
});
it("supports reauth alias for slash OAuth flow", async () => {
loadAccounts.mockResolvedValue(makeAccountsData([{ refreshToken: "refresh-1", enabled: true }]));
const text = await runAnthropic("ra 1");
expect(text).toContain("Started reauth 1 flow");
});
it("routes switch through CLI command surface", async () => {
loadAccounts.mockResolvedValue(
makeAccountsData([
{ refreshToken: "refresh-1", enabled: true, email: "a@example.com" },
{ refreshToken: "refresh-2", enabled: true, email: "b@example.com" },
]),
);
const text = await runAnthropic("switch 2");
expect(text).toContain("Switched");
expect(saveAccounts).toHaveBeenCalledWith(expect.objectContaining({ activeIndex: 1 }));
});
it("starts and completes login OAuth flow", async () => {
let text = await runAnthropic("login");
expect(text).toContain("Anthropic OAuth");
expect(text).toContain("Started login flow");
expect(text).toContain("claude.ai/oauth/authorize");
mockFetch.mockResolvedValueOnce({
ok: true,
json: async () => ({
access_token: "access-from-login",
refresh_token: "refresh-from-login",
expires_in: 3600,
account: { email_address: "new@example.com" },
}),
});
text = await runAnthropic("login complete test-code#test-state");
expect(text).toContain("Added account #1");
expect(client.auth.set).toHaveBeenCalledWith(
expect.objectContaining({
path: { id: "anthropic" },
body: expect.objectContaining({
type: "oauth",
refresh: "refresh-from-login",
access: "access-from-login",
}),
}),
);
expect(setOpenCodeAuth).toHaveBeenCalledWith(
expect.objectContaining({
refresh: "refresh-from-login",
access: "access-from-login",
}),
);
expect(saveAccounts).toHaveBeenCalledWith(
expect.objectContaining({
version: 1,
accounts: expect.arrayContaining([
expect.objectContaining({
refreshToken: "refresh-from-login",
access: "access-from-login",
email: "new@example.com",
}),
]),
}),
);
});
it("rejects mismatched completion command for pending OAuth mode", async () => {
let text = await runAnthropic("login");
expect(text).toContain("Started login flow");
text = await runAnthropic("reauth complete test-code#state");
expect(text).toContain("Pending login OAuth flow found");
expect(saveAccounts).not.toHaveBeenCalled();
expect(client.auth.set).not.toHaveBeenCalled();
expect(mockFetch).not.toHaveBeenCalled();
});
it("expires pending slash OAuth flow after TTL", async () => {
await runAnthropic("login");
const nowSpy = vi.spyOn(Date, "now").mockReturnValue(Date.now() + 11 * 60 * 1000);
try {
const text = await runAnthropic("login complete stale-code#state");
expect(text).toContain("expired");
} finally {
nowSpy.mockRestore();
}
});
it("starts and completes reauth OAuth flow", async () => {
const stored = makeAccountsData([
{
refreshToken: "refresh-1",
access: "old-access",
expires: Date.now() + 1000,
enabled: false,
consecutiveFailures: 3,
lastFailureTime: Date.now(),
rateLimitResetTimes: { anthropic: Date.now() + 60_000 },
},
]);
loadAccounts.mockResolvedValue(stored);
let text = await runAnthropic("reauth 1");
expect(text).toContain("Started reauth 1 flow");
mockFetch.mockResolvedValueOnce({
ok: true,
json: async () => ({
access_token: "fresh-access",
refresh_token: "fresh-refresh",
expires_in: 3600,
account: { email_address: "reauth@example.com" },
}),
});
text = await runAnthropic("reauth complete another-code#state");
expect(text).toContain("Re-authenticated account #1");
expect(client.auth.set).toHaveBeenCalledWith(
expect.objectContaining({
path: { id: "anthropic" },
body: expect.objectContaining({
type: "oauth",
refresh: "fresh-refresh",
access: "fresh-access",
}),
}),
);
expect(setOpenCodeAuth).toHaveBeenCalledWith(
expect.objectContaining({
refresh: "fresh-refresh",
access: "fresh-access",
}),
);
const saved = saveAccounts.mock.calls[saveAccounts.mock.calls.length - 1][0];
expect(saved.accounts[0]).toEqual(
expect.objectContaining({
refreshToken: "fresh-refresh",
access: "fresh-access",
email: "reauth@example.com",
enabled: true,
consecutiveFailures: 0,
lastFailureTime: null,
rateLimitResetTimes: {},
}),
);
});
it("rejects slash reauth when returned credentials already belong to another account", async () => {
const stored = makeAccountsData([
{ refreshToken: "refresh-1", access: "access-1", expires: Date.now() + 1000 },
{ refreshToken: "refresh-2", access: "access-2", expires: Date.now() + 1000 },
]);
loadAccounts.mockResolvedValue(stored);
let text = await runAnthropic("reauth 1");
expect(text).toContain("Started reauth 1 flow");
mockFetch.mockResolvedValueOnce({
ok: true,
json: async () => ({
access_token: "fresh-access",
refresh_token: "refresh-2",
expires_in: 3600,
}),
});
saveAccounts.mockClear();
text = await runAnthropic("reauth complete dup-code#state");
expect(text).toContain("already belong to account #2");
expect(saveAccounts).not.toHaveBeenCalled();
});
it("returns without handling non-anthropic commands", async () => {
await expect(
plugin["command.execute.before"]({
command: "usage",
arguments: "",
sessionID: "session-1",
}),
).resolves.toBeUndefined();
expect(client.session.prompt).not.toHaveBeenCalled();
});
});
// ---------------------------------------------------------------------------
// Fetch interceptor
// ---------------------------------------------------------------------------
describe("fetch interceptor", () => {
let client;
let fetchFn;
const LEGACY_PROMPT_BLOCK = [
"You are OpenCode, the best coding agent on the planet.",
"",
"Legacy OpenCode system prompt body.",
"",
"<example>",
"user: Where are errors from the client handled?",
"assistant: Clients are marked as failed in `src/services/process.ts:712` inside `connectToServer`.",
"</example>",
].join("\n");
beforeEach(async () => {
vi.resetAllMocks();
restoreDefaultMocks();
client = makeClient();
loadAccounts.mockResolvedValue(
makeAccountsData([
{
access: "test-access",
expires: Date.now() + 3600_000,
accountUuid: "account-uuid-fallback",
},
]),
);
saveAccounts.mockResolvedValue(undefined);
const plugin = await AnthropicAuthPlugin({ client });
const getAuth = vi.fn().mockResolvedValue({
type: "oauth",
refresh: "refresh-1",
access: "test-access",
expires: Date.now() + 3600_000,
accountUuid: "account-uuid-fallback",
});
const result = await plugin.auth.loader(getAuth, makeProvider());
fetchFn = result.fetch;
});
it("adds spoofed Claude Code headers by default", async () => {
mockFetch.mockResolvedValueOnce(
new Response('data: {"type":"message_start"}\n\n', {
status: 200,
headers: { "content-type": "text/event-stream" },
}),
);
await fetchFn("https://api.anthropic.com/v1/messages", {
method: "POST",
headers: { "content-type": "application/json" },
body: JSON.stringify({ messages: [] }),
});
const [, init] = mockFetch.mock.calls[0];
const headers = init.headers;
expect(headers.get("authorization")).toBe("Bearer test-access");
expect(headers.get("accept")).toBe("application/json");
expect(headers.get("anthropic-version")).toBe("2023-06-01");
expect(headers.get("anthropic-dangerous-direct-browser-access")).toBe("true");
expect(headers.get("user-agent")).toBe("claude-cli/2.1.97 (external, cli)");
expect(headers.get("x-app")).toBe("cli");
expect(headers.get("x-stainless-arch")).toBe("arm64");
expect(headers.get("x-stainless-lang")).toBe("js");
expect(headers.get("x-stainless-os")).toBe("MacOS");
expect(headers.get("x-stainless-package-version")).toBe("0.74.0");
expect(headers.get("x-stainless-retry-count")).toBe("0");
expect(headers.get("x-stainless-runtime")).toBe("node");
expect(headers.get("x-stainless-runtime-version")).toBe("v24.3.0");
expect(headers.get("x-stainless-timeout")).toBe("600");
expect(headers.get("anthropic-beta")).toContain("claude-code-20250219");
expect(headers.get("anthropic-beta")).toContain("oauth-2025-04-20");
expect(headers.get("anthropic-beta")).toContain("context-1m-2025-08-07");
expect(headers.get("anthropic-beta")).toContain("redact-thinking-2026-02-12");
expect(headers.get("anthropic-beta")).toContain("advanced-tool-use-2025-11-20");
expect(headers.get("anthropic-beta")).not.toContain("adaptive-thinking-2026-01-28");
expect(headers.get("anthropic-beta")).toContain("context-management-2025-06-27");
expect(headers.has("x-api-key")).toBe(false);
});
it("adds ?beta=true to /v1/messages URL", async () => {
mockFetch.mockResolvedValueOnce(new Response("", { status: 200 }));
await fetchFn("https://api.anthropic.com/v1/messages", {
method: "POST",
body: JSON.stringify({ messages: [] }),
});
const [input] = mockFetch.mock.calls[0];
const url = input instanceof URL ? input : new URL(input.toString());
expect(url.searchParams.get("beta")).toBe("true");
});
it("preserves system prompt branding text in request body", async () => {
mockFetch.mockResolvedValueOnce(new Response("", { status: 200 }));
await fetchFn("https://api.anthropic.com/v1/messages", {
method: "POST",
body: JSON.stringify({
system: [{ type: "text", text: "You are OpenCode, an opencode assistant." }],
messages: [],
}),
});
const [, init] = mockFetch.mock.calls[0];
const body = JSON.parse(init.body);
expect(body.system[0].text).toMatch(
/^x-anthropic-billing-header: cc_version=[\d.a-z]+; cc_entrypoint=cli; cch=[0-9a-f]{5};$/,
);
expect(body.system[1].text).toBe("You are OpenCode, an opencode assistant.");
});
it("replaces a bounded legacy prompt block in system text entries", async () => {
mockFetch.mockResolvedValueOnce(new Response("", { status: 200 }));
await fetchFn("https://api.anthropic.com/v1/messages", {
method: "POST",
body: JSON.stringify({
system: [
{
type: "text",
text: LEGACY_PROMPT_BLOCK,
},
],
messages: [],
}),
});
const [, init] = mockFetch.mock.calls[0];
const body = JSON.parse(init.body);
expect(body.system[1].text).toBe(ANTHROPIC_REPLACEMENT_PROMPT);
});
it("replaces a bounded legacy prompt block when system is a plain string", async () => {
mockFetch.mockResolvedValueOnce(new Response("", { status: 200 }));
await fetchFn("https://api.anthropic.com/v1/messages", {
method: "POST",
body: JSON.stringify({
system: LEGACY_PROMPT_BLOCK,
messages: [],
}),
});
const [, init] = mockFetch.mock.calls[0];
const body = JSON.parse(init.body);
expect(body.system[1].text).toBe(ANTHROPIC_REPLACEMENT_PROMPT);
});
it("replaces a fallback-bounded legacy prompt block in the fetch pipeline", async () => {
mockFetch.mockResolvedValueOnce(new Response("", { status: 200 }));
await fetchFn("https://api.anthropic.com/v1/messages", {
method: "POST",
body: JSON.stringify({
system: `${LEGACY_PROMPT_BLOCK}\nInstructions from: /tmp/example.md`,
messages: [],
}),
});
const [, init] = mockFetch.mock.calls[0];
const body = JSON.parse(init.body);
expect(body.system[1].text).toBe(`${ANTHROPIC_REPLACEMENT_PROMPT}\nInstructions from: /tmp/example.md`);
});
it("preserves paths containing opencode in system prompt", async () => {
mockFetch.mockResolvedValueOnce(new Response("", { status: 200 }));
await fetchFn("https://api.anthropic.com/v1/messages", {
method: "POST",
body: JSON.stringify({
system: [{ type: "text", text: "Working dir: /Users/rmk/projects/opencode-auth" }],
messages: [],
}),
});
const [, init] = mockFetch.mock.calls[0];
const body = JSON.parse(init.body);
expect(body.system[1].text).toBe("Working dir: /Users/rmk/projects/opencode-auth");
});
it("prefixes tool names with mcp_ in request", async () => {
mockFetch.mockResolvedValueOnce(new Response("", { status: 200 }));
await fetchFn("https://api.anthropic.com/v1/messages", {
method: "POST",
body: JSON.stringify({
tools: [{ name: "read_file", description: "Read a file" }],
messages: [
{
role: "assistant",
content: [{ type: "tool_use", name: "read_file", id: "t1", input: {} }],
},
],
}),
});
const [, init] = mockFetch.mock.calls[0];
const body = JSON.parse(init.body);
expect(body.tools[0].name).toBe("mcp_read_file");
expect(body.messages[0].content[0].name).toBe("mcp_read_file");
});
it("injects billing header into final Anthropic request body when enabled", async () => {
const { loadConfig } = await import("./lib/config.mjs");
loadConfig.mockReturnValue({
...DEFAULT_CONFIG,
headers: { ...DEFAULT_CONFIG.headers, billing_header: true, cch_signing: true },
idle_refresh: { ...DEFAULT_CONFIG.idle_refresh, enabled: false },
});
const plugin = await AnthropicAuthPlugin({ client });
const getAuth = vi.fn().mockResolvedValue({
type: "oauth",
refresh: "test-refresh",
access: "test-access",
expires: Date.now() + 3600_000,
accountUuid: "account-uuid-fallback",
});
const result = await plugin.auth.loader(getAuth, makeProvider());
mockFetch.mockResolvedValueOnce(new Response("", { status: 200 }));
await result.fetch("https://api.anthropic.com/v1/messages", {
method: "POST",
body: JSON.stringify({
system: [
{ type: "text", text: "You are Claude Code, Anthropic's official CLI for Claude." },
{ type: "text", text: "You are a helpful assistant." },
],
messages: [],
}),
});
const [, init] = mockFetch.mock.calls[0];
const body = JSON.parse(init.body);
expect(body.system).toHaveLength(3);
expect(body.system[0].text).toMatch(
/^x-anthropic-billing-header: cc_version=[\d.a-z]+; cc_entrypoint=cli; cch=[0-9a-f]{5};$/,
);
expect(body.system[1].text).toBe("You are Claude Code, Anthropic's official CLI for Claude.");
});
it("signs the final serialized Anthropic body and replaces only the billing placeholder", async () => {
const { loadConfig } = await import("./lib/config.mjs");
loadConfig.mockReturnValue({
...DEFAULT_CONFIG,
headers: { ...DEFAULT_CONFIG.headers, billing_header: true, cch_signing: true },
});
const plugin = await AnthropicAuthPlugin({ client });
const getAuth = vi.fn().mockResolvedValue({
type: "oauth",
refresh: "test-refresh",
access: "test-access",
expires: Date.now() + 3600_000,
});
const result = await plugin.auth.loader(getAuth, makeProvider());
mockFetch.mockResolvedValueOnce(new Response("", { status: 200 }));
await result.fetch("https://api.anthropic.com/v1/messages", {
method: "POST",
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