fix: stabilize swift protocol generation and flaky tests

scripts/protocol-gen-swift.ts

@@ -114,11 +114,10 @@ function emitStruct(name: string, schema: JsonSchema): string {
   const props = schema.properties ?? {};
   const required = new Set(schema.required ?? []);
   const lines: string[] = [];
-  lines.push(`public struct ${name}: Codable, Sendable {`);
   if (Object.keys(props).length === 0) {
-    lines.push("}\n");
-    return lines.join("\n");
+    return `public struct ${name}: Codable, Sendable {}\n`;
   }
+  lines.push(`public struct ${name}: Codable, Sendable {`);
   const codingKeys: string[] = [];
   for (const [key, propSchema] of Object.entries(props)) {
     const propName = safeName(key);
@@ -139,14 +138,15 @@ function emitStruct(name: string, schema: JsonSchema): string {
           return `        ${propName}: ${swiftType(prop, true)}${req ? "" : "?"}`;
         })
         .join(",\n") +
-      "\n    ) {\n" +
+      ")\n" +
+      "    {\n" +
       Object.entries(props)
         .map(([key]) => {
           const propName = safeName(key);
           return `        self.${propName} = ${propName}`;
         })
         .join("\n") +
-      "\n    }\n" +
+      "\n    }\n\n" +
       "    private enum CodingKeys: String, CodingKey {\n" +
       codingKeys.join("\n") +
       "\n    }\n}",
@@ -173,11 +173,11 @@ function emitGatewayFrame(): string {
         let type = try typeContainer.decode(String.self, forKey: .type)
         switch type {
         case "req":
-            self = .req(try RequestFrame(from: decoder))
+            self = try .req(RequestFrame(from: decoder))
         case "res":
-            self = .res(try ResponseFrame(from: decoder))
+            self = try .res(ResponseFrame(from: decoder))
         case "event":
-            self = .event(try EventFrame(from: decoder))
+            self = try .event(EventFrame(from: decoder))
         default:
             let container = try decoder.singleValueContainer()
             let raw = try container.decode([String: AnyCodable].self)
@@ -187,10 +187,13 @@ function emitGatewayFrame(): string {
 
     public func encode(to encoder: Encoder) throws {
         switch self {
-        case .req(let v): try v.encode(to: encoder)
-        case .res(let v): try v.encode(to: encoder)
-        case .event(let v): try v.encode(to: encoder)
-        case .unknown(_, let raw):
+        case let .req(v):
+            try v.encode(to: encoder)
+        case let .res(v):
+            try v.encode(to: encoder)
+        case let .event(v):
+            try v.encode(to: encoder)
+        case let .unknown(_, raw):
             var container = encoder.singleValueContainer()
             try container.encode(raw)
         }
@@ -201,7 +204,7 @@ function emitGatewayFrame(): string {
     "public enum GatewayFrame: Codable, Sendable {",
     ...caseLines,
     "    case unknown(type: String, raw: [String: AnyCodable])",
-    initLines,
+    initLines.trimEnd(),
     "}",
     "",
   ].join("\n");

src/discord/monitor/thread-bindings.shared-state.test.ts

@@ -6,18 +6,36 @@ import {
   getThreadBindingManager,
 } from "./thread-bindings.js";
 
+type ThreadBindingsModule = {
+  getThreadBindingManager: typeof getThreadBindingManager;
+};
+
+async function loadThreadBindingsViaAlternateLoader(): Promise<ThreadBindingsModule> {
+  const jiti = createJiti(import.meta.url, {
+    interopDefault: true,
+  });
+  try {
+    return await jiti.import<ThreadBindingsModule>("./thread-bindings.ts");
+  } catch (error) {
+    // jiti@2 can fail under ESM test runners when mutating module.require.
+    if (
+      !(error instanceof TypeError) ||
+      !String(error.message).includes("Cannot set property require")
+    ) {
+      throw error;
+    }
+    const fallbackPath = "./thread-bindings.ts?vitest-loader-fallback";
+    return (await import(/* @vite-ignore */ fallbackPath)) as ThreadBindingsModule;
+  }
+}
+
 describe("thread binding manager state", () => {
   beforeEach(() => {
     threadBindingsTesting.resetThreadBindingsForTests();
   });
 
-  it("shares managers between ESM and Jiti-loaded module instances", () => {
-    const jiti = createJiti(import.meta.url, {
-      interopDefault: true,
-    });
-    const viaJiti = jiti("./thread-bindings.ts") as {
-      getThreadBindingManager: typeof getThreadBindingManager;
-    };
+  it("shares managers between ESM and Jiti-loaded module instances", async () => {
+    const viaJiti = await loadThreadBindingsViaAlternateLoader();
 
     createThreadBindingManager({
       accountId: "work",

src/process/child-process-bridge.test.ts

@@ -4,7 +4,7 @@ import process from "node:process";
 import { afterEach, describe, expect, it } from "vitest";
 import { attachChildProcessBridge } from "./child-process-bridge.js";
 
-function waitForLine(stream: NodeJS.ReadableStream, timeoutMs = 2000): Promise<string> {
+function waitForLine(stream: NodeJS.ReadableStream, timeoutMs = 10_000): Promise<string> {
   return new Promise((resolve, reject) => {
     let buffer = "";
 
@@ -89,11 +89,11 @@ describe("attachChildProcessBridge", () => {
     addedSigterm("SIGTERM");
 
     await new Promise<void>((resolve, reject) => {
-      const timeout = setTimeout(() => reject(new Error("timeout waiting for child exit")), 2_000);
+      const timeout = setTimeout(() => reject(new Error("timeout waiting for child exit")), 10_000);
       child.once("exit", () => {
         clearTimeout(timeout);
         resolve();
       });
     });
-  }, 5_000);
+  }, 15_000);
 });

src/process/supervisor/supervisor.test.ts

@@ -9,7 +9,7 @@ describe("process supervisor", () => {
       backendId: "test",
       mode: "child",
       argv: [process.execPath, "-e", 'process.stdout.write("ok")'],
-      timeoutMs: 800,
+      timeoutMs: 2_500,
       stdinMode: "pipe-closed",
     });
     const exit = await run.wait();
@@ -54,7 +54,7 @@ describe("process supervisor", () => {
       replaceExistingScope: true,
       mode: "child",
       argv: [process.execPath, "-e", 'process.stdout.write("new")'],
-      timeoutMs: 800,
+      timeoutMs: 2_500,
       stdinMode: "pipe-closed",
     });
 
@@ -88,7 +88,7 @@ describe("process supervisor", () => {
       backendId: "test",
       mode: "child",
       argv: [process.execPath, "-e", 'process.stdout.write("streamed")'],
-      timeoutMs: 800,
+      timeoutMs: 2_500,
       stdinMode: "pipe-closed",
       captureOutput: false,
       onStdout: (chunk) => {