fix(ext/node): stub `process.cpuUsage()` (#25462)

closes #23401

2 files changed, 14 insertions, 0 deletions

diff --git a/ext/node/polyfills/process.ts b/ext/node/polyfills/process.ts
index f09d7ceed..f84255814 100644
--- a/ext/node/polyfills/process.ts
+++ b/ext/node/polyfills/process.ts
@@ -430,6 +430,14 @@ Process.prototype.config = {
   },
 };
 
+Process.prototype.cpuUsage = function () {
+  warnNotImplemented("process.cpuUsage()");
+  return {
+    user: 0,
+    system: 0,
+  };
+};
+
 /** https://nodejs.org/api/process.html#process_process_cwd */
 Process.prototype.cwd = cwd;
 
diff --git a/tests/unit_node/process_test.ts b/tests/unit_node/process_test.ts
index 962877935..b3db9753e 100644
--- a/tests/unit_node/process_test.ts
+++ b/tests/unit_node/process_test.ts
@@ -1131,3 +1131,9 @@ Deno.test(function importedExecArgvTest() {
 Deno.test(function importedExecPathTest() {
   assertEquals(importedExecPath, Deno.execPath());
 });
+
+Deno.test("process.cpuUsage()", () => {
+  const cpuUsage = process.cpuUsage();
+  assert(typeof cpuUsage.user === "number");
+  assert(typeof cpuUsage.system === "number");
+});