1 files changed, 46 insertions, 0 deletions
diff --git a/dom/webgpu/tests/cts/checkout/src/common/runtime/helper/sys.ts b/dom/webgpu/tests/cts/checkout/src/common/runtime/helper/sys.ts
new file mode 100644
index 0000000000..d2e07ff26d
--- /dev/null
+++ b/dom/webgpu/tests/cts/checkout/src/common/runtime/helper/sys.ts
@@ -0,0 +1,46 @@
+/* eslint no-process-exit: "off" */
+/* eslint @typescript-eslint/no-namespace: "off" */
+
+function node() {
+  const { existsSync } = require('fs');
+
+  return {
+    type: 'node',
+    existsSync,
+    args: process.argv.slice(2),
+    cwd: () => process.cwd(),
+    exit: (code?: number | undefined) => process.exit(code),
+  };
+}
+
+declare global {
+  namespace Deno {
+    function readFileSync(path: string): Uint8Array;
+    const args: string[];
+    const cwd: () => string;
+    function exit(code?: number): never;
+  }
+}
+
+function deno() {
+  function existsSync(path: string) {
+    try {
+      Deno.readFileSync(path);
+      return true;
+    } catch (err) {
+      return false;
+    }
+  }
+
+  return {
+    type: 'deno',
+    existsSync,
+    args: Deno.args,
+    cwd: Deno.cwd,
+    exit: Deno.exit,
+  };
+}
+
+const sys = typeof globalThis.process !== 'undefined' ? node() : deno();
+
+export default sys;