1 files changed, 205 insertions, 0 deletions
diff --git a/tests/napi/src/bigint.rs b/tests/napi/src/bigint.rs
new file mode 100644
index 000000000..d86782331
--- /dev/null
+++ b/tests/napi/src/bigint.rs
@@ -0,0 +1,205 @@
+// Copyright 2018-2024 the Deno authors. All rights reserved. MIT license.
+
+use crate::assert_napi_ok;
+use crate::cstr;
+use crate::napi_get_callback_info;
+use crate::napi_new_property;
+use napi_sys::Status::napi_pending_exception;
+use napi_sys::ValueType::napi_bigint;
+use napi_sys::*;
+use std::ptr;
+
+extern "C" fn is_lossless(
+  env: napi_env,
+  info: napi_callback_info,
+) -> napi_value {
+  let (args, argc, _) = napi_get_callback_info!(env, info, 2);
+  assert_eq!(argc, 2);
+
+  let mut is_signed = false;
+  assert_napi_ok!(napi_get_value_bool(env, args[1], &mut is_signed));
+
+  let mut lossless = false;
+
+  if is_signed {
+    let mut input: i64 = 0;
+    assert_napi_ok!(napi_get_value_bigint_int64(
+      env,
+      args[0],
+      &mut input,
+      &mut lossless
+    ));
+  } else {
+    let mut input: u64 = 0;
+    assert_napi_ok!(napi_get_value_bigint_uint64(
+      env,
+      args[0],
+      &mut input,
+      &mut lossless
+    ));
+  }
+
+  let mut output: napi_value = ptr::null_mut();
+  assert_napi_ok!(napi_get_boolean(env, lossless, &mut output));
+
+  output
+}
+
+extern "C" fn test_int64(
+  env: napi_env,
+  info: napi_callback_info,
+) -> napi_value {
+  let (args, _argc, _) = napi_get_callback_info!(env, info, 2);
+
+  let mut ty = -1;
+  assert_napi_ok!(napi_typeof(env, args[0], &mut ty));
+  assert_eq!(ty, napi_bigint);
+
+  let mut input: i64 = 0;
+  let mut lossless = false;
+  assert_napi_ok!(napi_get_value_bigint_int64(
+    env,
+    args[0],
+    &mut input,
+    &mut lossless
+  ));
+
+  let mut output: napi_value = ptr::null_mut();
+  assert_napi_ok!(napi_create_bigint_int64(env, input, &mut output));
+
+  output
+}
+
+extern "C" fn test_uint64(
+  env: napi_env,
+  info: napi_callback_info,
+) -> napi_value {
+  let (args, _argc, _) = napi_get_callback_info!(env, info, 2);
+
+  let mut ty = -1;
+  assert_napi_ok!(napi_typeof(env, args[0], &mut ty));
+  assert_eq!(ty, napi_bigint);
+
+  let mut input: u64 = 0;
+  let mut lossless = false;
+  assert_napi_ok!(napi_get_value_bigint_uint64(
+    env,
+    args[0],
+    &mut input,
+    &mut lossless
+  ));
+
+  let mut output: napi_value = ptr::null_mut();
+  assert_napi_ok!(napi_create_bigint_uint64(env, input, &mut output));
+
+  output
+}
+
+extern "C" fn test_words(
+  env: napi_env,
+  info: napi_callback_info,
+) -> napi_value {
+  let (args, _argc, _) = napi_get_callback_info!(env, info, 1);
+
+  let mut ty = -1;
+  assert_napi_ok!(napi_typeof(env, args[0], &mut ty));
+  assert_eq!(ty, napi_bigint);
+
+  let mut expected_work_count = 0;
+  assert_napi_ok!(napi_get_value_bigint_words(
+    env,
+    args[0],
+    ptr::null_mut(),
+    &mut expected_work_count,
+    ptr::null_mut()
+  ));
+
+  let mut sign_bit = 0;
+  let mut word_count: usize = 10;
+  let mut words: Vec<u64> = Vec::with_capacity(10);
+
+  assert_napi_ok!(napi_get_value_bigint_words(
+    env,
+    args[0],
+    &mut sign_bit,
+    &mut word_count,
+    words.as_mut_ptr(),
+  ));
+
+  assert_eq!(word_count, expected_work_count);
+  let mut output: napi_value = ptr::null_mut();
+
+  assert_napi_ok!(napi_create_bigint_words(
+    env,
+    sign_bit,
+    word_count,
+    words.as_ptr(),
+    &mut output,
+  ));
+  output
+}
+
+extern "C" fn create_too_big_big_int(
+  env: napi_env,
+  _info: napi_callback_info,
+) -> napi_value {
+  let sign_bit = 0;
+  let word_count = usize::MAX;
+  let words: Vec<u64> = Vec::with_capacity(10);
+
+  let mut output: napi_value = ptr::null_mut();
+  let result = unsafe {
+    napi_create_bigint_words(
+      env,
+      sign_bit,
+      word_count,
+      words.as_ptr(),
+      &mut output,
+    )
+  };
+  assert_eq!(result, 1);
+
+  output
+}
+
+extern "C" fn make_big_int_words_throw(
+  env: napi_env,
+  _info: napi_callback_info,
+) -> napi_value {
+  let words: Vec<u64> = Vec::with_capacity(10);
+  let mut output = ptr::null_mut();
+
+  let status = unsafe {
+    napi_create_bigint_words(env, 0, usize::MAX, words.as_ptr(), &mut output)
+  };
+
+  if status != napi_pending_exception {
+    unsafe {
+      napi_throw_error(
+        env,
+        ptr::null_mut(),
+        cstr!("Expected status 'napi_pending_exception'"),
+      )
+    };
+  }
+
+  ptr::null_mut()
+}
+
+pub fn init(env: napi_env, exports: napi_value) {
+  let properties = &[
+    napi_new_property!(env, "isLossless", is_lossless),
+    napi_new_property!(env, "testInt64", test_int64),
+    napi_new_property!(env, "testUint64", test_uint64),
+    napi_new_property!(env, "testWords", test_words),
+    napi_new_property!(env, "createTooBigBigInt", create_too_big_big_int),
+    napi_new_property!(env, "makeBigIntWordsThrow", make_big_int_words_throw),
+  ];
+
+  assert_napi_ok!(napi_define_properties(
+    env,
+    exports,
+    properties.len(),
+    properties.as_ptr()
+  ));
+}