1 files changed, 117 insertions, 0 deletions
diff --git a/tests/napi/src/callback.rs b/tests/napi/src/callback.rs
new file mode 100644
index 000000000..8909f5176
--- /dev/null
+++ b/tests/napi/src/callback.rs
@@ -0,0 +1,117 @@
+// Copyright 2018-2024 the Deno authors. All rights reserved. MIT license.
+
+use crate::assert_napi_ok;
+use crate::napi_get_callback_info;
+use crate::napi_new_property;
+use napi_sys::ValueType::napi_function;
+use napi_sys::ValueType::napi_object;
+use napi_sys::ValueType::napi_undefined;
+use napi_sys::*;
+use std::ptr;
+
+/// `test_callback_run((a, b) => a + b, [1, 2])` => 3
+extern "C" fn test_callback_run(
+  env: napi_env,
+  info: napi_callback_info,
+) -> napi_value {
+  // We want to have argv with size 4, even though the callback will have
+  // only two arguments. We'll assert that the remaining two args are undefined.
+  let (args, argc, _) = napi_get_callback_info!(env, info, 4);
+  assert_eq!(argc, 2);
+
+  let mut ty = -1;
+  assert_napi_ok!(napi_typeof(env, args[0], &mut ty));
+  assert_eq!(ty, napi_function);
+
+  let mut ty = -1;
+  assert_napi_ok!(napi_typeof(env, args[1], &mut ty));
+  assert_eq!(ty, napi_object);
+
+  let mut ty = -1;
+  assert_napi_ok!(napi_typeof(env, args[2], &mut ty));
+  assert_eq!(ty, napi_undefined);
+
+  let mut ty = -1;
+  assert_napi_ok!(napi_typeof(env, args[3], &mut ty));
+  assert_eq!(ty, napi_undefined);
+
+  let mut len = 0;
+  assert_napi_ok!(napi_get_array_length(env, args[1], &mut len));
+
+  let mut argv = Vec::with_capacity(len as usize);
+  for index in 0..len {
+    let mut value: napi_value = ptr::null_mut();
+    assert_napi_ok!(napi_get_element(env, args[1], index, &mut value));
+    argv.push(value);
+  }
+  let mut global: napi_value = ptr::null_mut();
+  assert_napi_ok!(napi_get_global(env, &mut global));
+
+  let mut result: napi_value = ptr::null_mut();
+  assert_napi_ok!(napi_call_function(
+    env,
+    global,
+    args[0],
+    argv.len(),
+    argv.as_mut_ptr(),
+    &mut result,
+  ));
+
+  result
+}
+
+extern "C" fn test_callback_run_with_recv(
+  env: napi_env,
+  info: napi_callback_info,
+) -> napi_value {
+  let (args, argc, _) = napi_get_callback_info!(env, info, 3);
+  assert_eq!(argc, 3);
+
+  let mut ty = -1;
+  assert_napi_ok!(napi_typeof(env, args[0], &mut ty));
+  assert_eq!(ty, napi_function);
+
+  let mut ty = -1;
+  assert_napi_ok!(napi_typeof(env, args[1], &mut ty));
+  assert_eq!(ty, napi_object);
+
+  let mut len = 0;
+  assert_napi_ok!(napi_get_array_length(env, args[1], &mut len));
+
+  let mut argv = Vec::with_capacity(len as usize);
+  for index in 0..len {
+    let mut value: napi_value = ptr::null_mut();
+    assert_napi_ok!(napi_get_element(env, args[1], index, &mut value));
+    argv.push(value);
+  }
+
+  let mut result: napi_value = ptr::null_mut();
+  assert_napi_ok!(napi_call_function(
+    env,
+    args[2], // recv
+    args[0], // cb
+    argv.len(),
+    argv.as_mut_ptr(),
+    &mut result,
+  ));
+
+  result
+}
+
+pub fn init(env: napi_env, exports: napi_value) {
+  let properties = &[
+    napi_new_property!(env, "test_callback_run", test_callback_run),
+    napi_new_property!(
+      env,
+      "test_callback_run_with_recv",
+      test_callback_run_with_recv
+    ),
+  ];
+
+  assert_napi_ok!(napi_define_properties(
+    env,
+    exports,
+    properties.len(),
+    properties.as_ptr()
+  ));
+}