From 48dd8d8439d1c7e1f94a69f7336b1db3f13935b1 Mon Sep 17 00:00:00 2001
From: "google-labs-jules[bot]"
 <161369871+google-labs-jules[bot]@users.noreply.github.com>
Date: Tue, 8 Sep 2026 08:20:14 +0000
Subject: [PATCH] test: Add missing test for module registration in sys.rs

This commit adds a test case to `stdlib_tests.rs` to verify that the
`std.fs` and `std.time` modules are correctly registered by `sys.rs`,
and that their respective exports and required capabilities are correctly
configured.

Co-authored-by: Tcode-Motion <188012755+Tcode-Motion@users.noreply.github.com>
---
 stdlib/tests/stdlib_tests.rs | 28 ++++++++++++++++++++++++++++
 1 file changed, 28 insertions(+)

diff --git a/stdlib/tests/stdlib_tests.rs b/stdlib/tests/stdlib_tests.rs
index f7df969f..d6bfff0b 100644
--- a/stdlib/tests/stdlib_tests.rs
+++ b/stdlib/tests/stdlib_tests.rs
@@ -1151,3 +1151,31 @@ fn test_ai_generate_text() {
     let val = res.unwrap();
     assert!(val.as_string().unwrap().contains("Prompt: What is 2+2?"));
 }
+
+#[test]
+fn test_sys_module_registration() {
+    let registry = StdlibRegistry::new();
+
+    // Verify std.fs module
+    let fs_module = registry
+        .get_module("std.fs")
+        .expect("std.fs module should be registered");
+    assert_eq!(fs_module.name, "std.fs");
+    assert!(fs_module
+        .required_capabilities
+        .contains(&Capability::FileSystem));
+
+    assert!(fs_module.exports.contains_key("read_file"));
+    assert!(fs_module.exports.contains_key("write_file"));
+    assert!(fs_module.exports.contains_key("exists"));
+
+    // Verify std.time module
+    let time_module = registry
+        .get_module("std.time")
+        .expect("std.time module should be registered");
+    assert_eq!(time_module.name, "std.time");
+    assert!(time_module.required_capabilities.is_empty());
+
+    assert!(time_module.exports.contains_key("now"));
+    assert!(time_module.exports.contains_key("sleep"));
+}