test(napi): add JsTimeout specs

test_module/__test__/global.spec.ts

@@ -7,11 +7,21 @@ function wait(delay: number) {
   return new Promise((resolve) => setTimeout(resolve, delay))
 }
 
+const delay = 100
+
 test('should setTimeout', async (t) => {
   const handler = Sinon.spy()
-  const delay = 100
   bindings.setTimeout(handler, delay)
   t.is(handler.callCount, 0)
   await wait(delay + 10)
   t.is(handler.callCount, 1)
 })
+
+test('should clearTimeout', async (t) => {
+  const handler = Sinon.spy()
+  const timer = setTimeout(() => handler(), delay)
+  t.is(handler.callCount, 0)
+  bindings.clearTimeout(timer)
+  await wait(delay + 10)
+  t.is(handler.callCount, 0)
+})

test_module/src/global.rs

@@ -1,6 +1,6 @@
 use std::convert::TryInto;
 
-use napi::{CallContext, JsFunction, JsNumber, JsTimeout, Module, Result};
+use napi::{CallContext, JsFunction, JsNumber, JsTimeout, JsUndefined, Module, Result};
 
 #[js_function(2)]
 pub fn set_timeout(ctx: CallContext) -> Result<JsTimeout> {
@@ -12,7 +12,14 @@ pub fn set_timeout(ctx: CallContext) -> Result<JsTimeout> {
     .set_timeout(handler, timeout.try_into()?)
 }
 
+#[js_function(1)]
+pub fn clear_timeout(ctx: CallContext) -> Result<JsUndefined> {
+  let timer: JsTimeout = ctx.get(0)?;
+  ctx.env.get_global()?.clear_timeout(timer)
+}
+
 pub fn register_js(module: &mut Module) -> Result<()> {
   module.create_named_method("setTimeout", set_timeout)?;
+  module.create_named_method("clearTimeout", clear_timeout)?;
   Ok(())
 }