diff --git a/test/harness.ts b/test/harness.ts
index 1aae38b75f..8ebfdf1a7c 100644
--- a/test/harness.ts
+++ b/test/harness.ts
@@ -8,6 +8,8 @@ import { heapStats } from "bun:jsc";
 
 type Awaitable<T> = T | Promise<T>;
 
+export const BREAKING_CHANGES_BUN_1_2 = false;
+
 export const isMacOS = process.platform === "darwin";
 export const isLinux = process.platform === "linux";
 export const isPosix = isMacOS || isLinux;
@@ -1044,4 +1046,26 @@ export function rejectUnauthorizedScope(value: boolean) {
   };
 }
 
-export const BREAKING_CHANGES_BUN_1_2 = false;
+let networkInterfaces: any;
+
+function isIP(type: "IPv4" | "IPv6") {
+  if (!networkInterfaces) {
+    networkInterfaces = os.networkInterfaces();
+  }
+  for (const networkInterface of Object.values(networkInterfaces)) {
+    for (const { family } of networkInterface as any[]) {
+      if (family === type) {
+        return true;
+      }
+    }
+  }
+  return false;
+}
+
+export function isIPv6() {
+  return isIP("IPv6");
+}
+
+export function isIPv4() {
+  return isIP("IPv4");
+}
diff --git a/test/js/bun/http/serve.test.ts b/test/js/bun/http/serve.test.ts
index ea3fc3941a..6a9a66dc74 100644
--- a/test/js/bun/http/serve.test.ts
+++ b/test/js/bun/http/serve.test.ts
@@ -2,7 +2,7 @@ import { file, gc, Serve, serve, Server } from "bun";
 import { afterEach, describe, it, expect, afterAll, mock } from "bun:test";
 import { readFileSync, writeFileSync } from "fs";
 import { join, resolve } from "path";
-import { bunExe, bunEnv, dumpStats } from "harness";
+import { bunExe, bunEnv, dumpStats, isPosix, isIPv6, tmpdirSync, isIPv4 } from "harness";
 // import { renderToReadableStream } from "react-dom/server";
 // import app_jsx from "./app.jsx";
 import { spawn } from "child_process";
@@ -27,7 +27,6 @@ async function runTest({ port, ...serverOptions }: Serve<any>, test: (server: Se
     while (!server) {
       try {
         server = serve({ ...serverOptions, port: 0 });
-        console.log(`Server: ${server.url}`);
         break;
       } catch (e: any) {
         console.log("catch:", e);
@@ -1275,11 +1274,12 @@ it("#5859 json", async () => {
 });
 
 it("#5859 arrayBuffer", async () => {
-  await Bun.write("/tmp/bad", new Uint8Array([0xfd]));
-  expect(async () => await Bun.file("/tmp/bad").json()).toThrow();
+  const tmp = join(tmpdirSync(), "bad");
+  await Bun.write(tmp, new Uint8Array([0xfd]));
+  expect(async () => await Bun.file(tmp).json()).toThrow();
 });
 
-it("server.requestIP (v4)", async () => {
+it.if(isIPv4())("server.requestIP (v4)", async () => {
   using server = Bun.serve({
     port: 0,
     fetch(req, server) {
@@ -1296,7 +1296,7 @@ it("server.requestIP (v4)", async () => {
   });
 });
 
-it("server.requestIP (v6)", async () => {
+it.if(isIPv6())("server.requestIP (v6)", async () => {
   using server = Bun.serve({
     port: 0,
     fetch(req, server) {
@@ -1313,8 +1313,8 @@ it("server.requestIP (v6)", async () => {
   });
 });
 
-it("server.requestIP (unix)", async () => {
-  const unix = "/tmp/bun-serve.sock";
+it.if(isPosix)("server.requestIP (unix)", async () => {
+  const unix = join(tmpdirSync(), "serve.sock");
   using server = Bun.serve({
     unix,
     fetch(req, server) {
diff --git a/test/regression/issue/__snapshots__/03830.test.ts.snap b/test/regression/issue/__snapshots__/03830.test.ts.snap
index 4fce0aab18..867c16c5ae 100644
--- a/test/regression/issue/__snapshots__/03830.test.ts.snap
+++ b/test/regression/issue/__snapshots__/03830.test.ts.snap
@@ -13,3 +13,10 @@ exports[`macros should not lead to seg faults under any given input 1`] = `
 error: "Cannot convert argument type to JS" error in macro
     at [dir]/index.ts:2:1"
 `;
+
+exports[`macros should not lead to seg faults under any given input 1`] = `
+"2 | fn(\`©${''}\`);
+    ^
+error: "Cannot convert argument type to JS" error in macro
+    at [dir]/index.ts:2:1"
+`;