fix(e2e): require expected web search rejection

test/scripts/openai-web-search-minimal-client.test.ts

@@ -0,0 +1,31 @@
+import { describe, expect, it } from "vitest";
+import { testing } from "../../scripts/e2e/lib/openai-web-search-minimal/client.mjs";
+
+describe("scripts/e2e/lib/openai-web-search-minimal/client.mjs", () => {
+  it("accepts only the expected raw schema rejection in reject mode", () => {
+    expect(
+      testing.validateRejectResult({
+        ok: false,
+        error: new Error(`gateway failed: ${testing.DEFAULT_RAW_SCHEMA_ERROR}`),
+      }),
+    ).toContain(testing.DEFAULT_RAW_SCHEMA_ERROR);
+  });
+
+  it("fails reject mode when the agent run unexpectedly succeeds", () => {
+    expect(() =>
+      testing.validateRejectResult({
+        ok: true,
+        value: { status: "ok" },
+      }),
+    ).toThrow(/reject mode unexpectedly completed/u);
+  });
+
+  it("fails reject mode on unrelated transport errors", () => {
+    expect(() =>
+      testing.validateRejectResult({
+        ok: false,
+        error: new Error("connect ECONNREFUSED 127.0.0.1:9"),
+      }),
+    ).toThrow(/reject mode failed for an unexpected reason/u);
+  });
+});