diff --git a/test/harness.ts b/test/harness.ts
index 11743ffeff..5c6ed5799f 100644
--- a/test/harness.ts
+++ b/test/harness.ts
@@ -1180,6 +1180,8 @@ if (secretTestFn) {
     if (!options) {
       options = {};
     }
+
+    // Default delta is 20 MB.
     const delta = options?.delta ?? 20;
     options.label ??= label;
 
@@ -1200,6 +1202,10 @@ declare module "bun:test" {
     minimumMilliseocnds?: number;
     verbose?: boolean;
     maxWarmup?: number;
+
+    /**
+     * Default delta is 20 MB.
+     */
     delta?: number;
   }
   interface Test {
diff --git a/test/js/bun/shell/echo-hi-leak-test.test.ts b/test/js/bun/shell/echo-hi-leak-test.test.ts
new file mode 100644
index 0000000000..0132907ab1
--- /dev/null
+++ b/test/js/bun/shell/echo-hi-leak-test.test.ts
@@ -0,0 +1,17 @@
+import { test, expect } from "bun:test";
+
+test.leak(
+  "echo hi",
+  async () => {
+    await Bun.$`echo hi`.quiet();
+  },
+  { delta: 5, repeatCount: 500 },
+);
+
+test.leak(
+  "echo hi text",
+  async () => {
+    await Bun.$`echo hi`.text();
+  },
+  { delta: 5, repeatCount: 500 },
+);
diff --git a/test/js/web/request/request-clone-leak.test.ts b/test/js/web/request/request-clone-leak.test.ts
index 4192fb1489..88598bb3b4 100644
--- a/test/js/web/request/request-clone-leak.test.ts
+++ b/test/js/web/request/request-clone-leak.test.ts
@@ -50,54 +50,15 @@ const constructorArgs = [
       },
     },
   ],
-];
+] as const;
 for (let i = 0; i < constructorArgs.length; i++) {
   const args = constructorArgs[i];
-  test("new Request(test #" + i + ")", () => {
-    Bun.gc(true);
-
-    for (let i = 0; i < 1000; i++) {
-      new Request(...args);
-    }
-
-    Bun.gc(true);
-    const baseline = (process.memoryUsage.rss() / 1024 / 1024) | 0;
-    for (let i = 0; i < 2000; i++) {
-      for (let j = 0; j < 500; j++) {
-        new Request(...args);
-      }
-      Bun.gc();
-    }
-    Bun.gc(true);
-
-    const memory = (process.memoryUsage.rss() / 1024 / 1024) | 0;
-    const delta = Math.max(memory, baseline) - Math.min(baseline, memory);
-    console.log("RSS delta: ", delta, "MB");
-    expect(delta).toBeLessThan(30);
+  test.leak("new Request(test #" + i + ")", async () => {
+    new Request(...args);
   });
 
-  test("request.clone(test #" + i + ")", () => {
-    Bun.gc(true);
-
-    for (let i = 0; i < 1000; i++) {
-      const request = new Request(...args);
-      request.clone();
-    }
-
-    Bun.gc(true);
-    const baseline = (process.memoryUsage.rss() / 1024 / 1024) | 0;
-    for (let i = 0; i < 2000; i++) {
-      for (let j = 0; j < 500; j++) {
-        const request = new Request(...args);
-        request.clone();
-      }
-      Bun.gc();
-    }
-    Bun.gc(true);
-
-    const memory = (process.memoryUsage.rss() / 1024 / 1024) | 0;
-    const delta = Math.max(memory, baseline) - Math.min(baseline, memory);
-    console.log("RSS delta: ", delta, "MB");
-    expect(delta).toBeLessThan(30);
+  test.leak("request.clone(test #" + i + ")", async () => {
+    const request = new Request(...args);
+    request.clone();
   });
 }