chore: import upstream snapshot with attribution

@omniroute/opencode-plugin/tests/auth.test.ts

@@ -0,0 +1,147 @@
+/**
+ * T-02 auth-hook contract tests.
+ *
+ * Covers the `createOmniRouteAuthHook(opts)` factory and its loader behaviour
+ * against every Auth flavor (`api`, `oauth`, null, empty key). Validates the
+ * multi-instance fix: provider id flows from plugin options, not a module
+ * constant.
+ */
+
+import test from "node:test";
+import assert from "node:assert/strict";
+import { createOmniRouteAuthHook } from "../src/index.js";
+
+test("createOmniRouteAuthHook: default providerId is 'omniroute'", () => {
+  const hook = createOmniRouteAuthHook();
+  assert.equal(hook.provider, "opencode-omniroute");
+});
+
+test("createOmniRouteAuthHook: custom providerId binds to hook.provider (multi-instance)", () => {
+  const hook = createOmniRouteAuthHook({ providerId: "omniroute-preprod" });
+  assert.equal(hook.provider, "opencode-omniroute-preprod");
+});
+
+test("createOmniRouteAuthHook: methods[0] is type 'api' with label including displayName", () => {
+  const hook = createOmniRouteAuthHook();
+  assert.equal(Array.isArray(hook.methods), true);
+  assert.equal(hook.methods.length, 1);
+  const m = hook.methods[0];
+  assert.equal(m.type, "api");
+  assert.equal(m.label, "OmniRoute API Key");
+
+  const custom = createOmniRouteAuthHook({ providerId: "omniroute-preprod" });
+  assert.equal(custom.methods[0].label, "OmniRoute (opencode-omniroute-preprod) API Key");
+});
+
+test("createOmniRouteAuthHook: prompts[0] uses key='apiKey' per @opencode-ai/plugin contract", () => {
+  // NOTE: spec referenced `name: "apiKey"`; the official
+  // @opencode-ai/plugin@1.15.6 prompt shape uses `key` + `message` (no
+  // `name`/`label`/`mask` fields). Asserting against the real type contract.
+  const hook = createOmniRouteAuthHook();
+  const m = hook.methods[0];
+  assert.equal(m.type, "api");
+  // narrow: api method may carry prompts
+  const prompts = "prompts" in m ? m.prompts : undefined;
+  assert.ok(Array.isArray(prompts) && prompts.length === 1, "expected one prompt");
+  const p = prompts![0];
+  assert.equal(p.type, "text");
+  assert.equal((p as { key: string }).key, "apiKey");
+  assert.ok(
+    typeof (p as { message: string }).message === "string" &&
+      (p as { message: string }).message.includes("omniroute"),
+    "prompt message should mention provider id"
+  );
+});
+
+test("loader: valid api auth → {apiKey} when no baseURL option (T-04: fetch omitted)", async () => {
+  // T-04 changed the loader return shape: without a resolvable baseURL the
+  // interceptor cannot gate-keep requests, so the loader falls back to
+  // apiKey-only and the AI-SDK uses its default fetch. See fetch-interceptor
+  // tests for the wired-fetch branches.
+  const hook = createOmniRouteAuthHook();
+  assert.ok(hook.loader, "loader must be defined");
+  const result = await hook.loader!(
+    async () => ({ type: "api", key: "sk-test" }) as never,
+    {} as never
+  );
+  assert.deepEqual(result, { apiKey: "sk-test" });
+});
+
+test("loader: valid api auth → {apiKey, baseURL, fetch} when baseURL option set (T-04)", async () => {
+  const hook = createOmniRouteAuthHook({ baseURL: "https://or.example.com/v1" });
+  const result = await hook.loader!(
+    async () => ({ type: "api", key: "sk-x" }) as never,
+    {} as never
+  );
+  assert.equal((result as { apiKey: string }).apiKey, "sk-x");
+  assert.equal((result as { baseURL: string }).baseURL, "https://or.example.com/v1");
+  assert.equal(
+    typeof (result as { fetch?: unknown }).fetch,
+    "function",
+    "T-04: loader must wire fetch interceptor when baseURL resolves"
+  );
+});
+
+test("loader: features.fetchInterceptor=false AND geminiSanitization=false → no custom fetch (flags honored)", async () => {
+  // Regression: both fetch-layer flags were documented + schema-validated but
+  // silently ignored. Disabling both must fall back to the SDK default fetch.
+  const hook = createOmniRouteAuthHook({
+    baseURL: "https://or.example.com/v1",
+    features: { fetchInterceptor: false, geminiSanitization: false },
+  });
+  const result = await hook.loader!(
+    async () => ({ type: "api", key: "sk-x" }) as never,
+    {} as never
+  );
+  assert.deepEqual(result, { apiKey: "sk-x", baseURL: "https://or.example.com/v1" });
+  assert.equal(
+    (result as { fetch?: unknown }).fetch,
+    undefined,
+    "both flags off must omit the custom fetch"
+  );
+});
+
+test("loader: features.fetchInterceptor=false but geminiSanitization=true → fetch still wired (sanitizer only)", async () => {
+  const hook = createOmniRouteAuthHook({
+    baseURL: "https://or.example.com/v1",
+    features: { fetchInterceptor: false, geminiSanitization: true },
+  });
+  const result = await hook.loader!(
+    async () => ({ type: "api", key: "sk-x" }) as never,
+    {} as never
+  );
+  assert.equal(
+    typeof (result as { fetch?: unknown }).fetch,
+    "function",
+    "geminiSanitization alone must still provide a fetch wrapper"
+  );
+});
+
+test("loader: null/undefined auth → {} (no creds yet, OC surfaces /connect)", async () => {
+  const hook = createOmniRouteAuthHook();
+  const r1 = await hook.loader!(async () => null as never, {} as never);
+  assert.deepEqual(r1, {});
+  const r2 = await hook.loader!(async () => undefined as never, {} as never);
+  assert.deepEqual(r2, {});
+});
+
+test("loader: oauth-flavored auth → {} (wrong method type, ignored)", async () => {
+  const hook = createOmniRouteAuthHook();
+  const result = await hook.loader!(
+    async () =>
+      ({
+        type: "oauth",
+        refresh: "r",
+        access: "a",
+        expires: 0,
+      }) as never,
+    {} as never
+  );
+  assert.deepEqual(result, {});
+});
+
+test("loader: api auth with empty key → {} (empty creds rejected)", async () => {
+  const hook = createOmniRouteAuthHook();
+  const result = await hook.loader!(async () => ({ type: "api", key: "" }) as never, {} as never);
+  assert.deepEqual(result, {});
+});