1 files changed, 79 insertions, 0 deletions
diff --git a/js/rust/tests/callback.rs b/js/rust/tests/callback.rs
new file mode 100644
index 0000000000..de75f97d26
--- /dev/null
+++ b/js/rust/tests/callback.rs
@@ -0,0 +1,79 @@
+/* This Source Code Form is subject to the terms of the Mozilla Public
+ * License, v. 2.0. If a copy of the MPL was not distributed with this file,
+ * You can obtain one at http://mozilla.org/MPL/2.0/. */
+
+#[macro_use]
+extern crate js;
+extern crate libc;
+
+use js::ar::AutoRealm;
+use js::glue::JSEncodeStringToUTF8;
+use js::jsapi::root::JSContext;
+use js::jsapi::root::JS_DefineFunction;
+use js::jsapi::root::JS_NewGlobalObject;
+use js::jsapi::root::JS_ReportErrorASCII;
+use js::jsapi::root::JS::CallArgs;
+use js::jsapi::root::JS::OnNewGlobalHookOption;
+use js::jsapi::root::JS::RealmOptions;
+use js::jsapi::root::JS::Value;
+use js::jsval::UndefinedValue;
+use js::rust::{Runtime, SIMPLE_GLOBAL_CLASS};
+
+use std::ffi::CStr;
+use std::ptr;
+use std::str;
+
+#[test]
+fn callback() {
+    let runtime = Runtime::new(false).unwrap();
+    let context = runtime.cx();
+    let h_option = OnNewGlobalHookOption::FireOnNewGlobalHook;
+    let c_option = RealmOptions::default();
+
+    unsafe {
+        let global = JS_NewGlobalObject(
+            context,
+            &SIMPLE_GLOBAL_CLASS,
+            ptr::null_mut(),
+            h_option,
+            &c_option,
+        );
+        rooted!(in(context) let global_root = global);
+        let global = global_root.handle();
+        let _ar = AutoRealm::with_obj(context, global.get());
+        let function = JS_DefineFunction(
+            context,
+            global,
+            b"puts\0".as_ptr() as *const libc::c_char,
+            Some(puts),
+            1,
+            0,
+        );
+        assert!(!function.is_null());
+        let javascript = "puts('Test Iñtërnâtiônàlizætiøn ┬─┬ノ( º _ ºノ) ');";
+        rooted!(in(context) let mut rval = UndefinedValue());
+        let _ = runtime.evaluate_script(global, javascript, "test.js", 0, rval.handle_mut());
+    }
+}
+
+unsafe extern "C" fn puts(context: *mut JSContext, argc: u32, vp: *mut Value) -> bool {
+    let args = CallArgs::from_vp(vp, argc);
+
+    if args._base.argc_ != 1 {
+        JS_ReportErrorASCII(
+            context,
+            b"puts() requires exactly 1 argument\0".as_ptr() as *const libc::c_char,
+        );
+        return false;
+    }
+
+    let arg = args.get(0);
+    let js = js::rust::ToString(context, arg);
+    rooted!(in(context) let message_root = js);
+    let message = JSEncodeStringToUTF8(context, message_root.handle());
+    let message = CStr::from_ptr(message);
+    println!("{}", str::from_utf8(message.to_bytes()).unwrap());
+
+    args.rval().set(UndefinedValue());
+    return true;
+}