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114 lines (92 loc) · 2.44 KB
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Copy pathfunction.rs
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114 lines (92 loc) · 2.44 KB
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#![allow(unused_imports)]
use std::{string::String as StdString, time::Duration};
use futures_executor::block_on;
use mlua::{Error, Function, Lua, Result, String, Thread};
#[test]
fn test_function() -> Result<()> {
let lua = Lua::new();
let globals = lua.globals();
lua.load(
r#"
function concat(arg1, arg2)
return arg1 .. arg2
end
"#,
)
.exec()?;
let concat = globals.get::<_, Function>("concat")?;
assert_eq!(concat.call::<_, String>(("foo", "bar"))?, "foobar");
Ok(())
}
#[test]
fn test_bind() -> Result<()> {
let lua = Lua::new();
let globals = lua.globals();
lua.load(
r#"
function concat(...)
local res = ""
for _, s in pairs({...}) do
res = res..s
end
return res
end
"#,
)
.exec()?;
let mut concat = globals.get::<_, Function>("concat")?;
concat = concat.bind("foo")?;
concat = concat.bind("bar")?;
concat = concat.bind(("baz", "baf"))?;
assert_eq!(
concat.call::<_, String>(("hi", "wut"))?,
"foobarbazbafhiwut"
);
Ok(())
}
#[test]
fn test_rust_function() -> Result<()> {
let lua = Lua::new();
let globals = lua.globals();
lua.load(
r#"
function lua_function()
return rust_function()
end
-- Test to make sure chunk return is ignored
return 1
"#,
)
.exec()?;
let lua_function = globals.get::<_, Function>("lua_function")?;
let rust_function = lua.create_function(|_, ()| Ok("hello"))?;
globals.set("rust_function", rust_function)?;
assert_eq!(lua_function.call::<_, String>(())?, "hello");
Ok(())
}
#[cfg(feature = "async")]
#[tokio::test]
async fn test_async_function() -> Result<()> {
let lua = Lua::new();
let f = lua.create_async_function(move |_lua, n: u64| async move {
futures_timer::Delay::new(Duration::from_secs(n)).await;
Ok("hello")
})?;
lua.globals().set("rust_async_sleep", f)?;
let thread = lua
.load(
r#"
coroutine.create(function ()
ret = rust_async_sleep(1)
assert(ret == "hello")
coroutine.yield()
return "world"
end)
"#,
)
.eval::<Thread>()?;
let fut = thread.into_async(());
let ret: StdString = fut.await?;
assert_eq!(ret, "world");
Ok(())
}