rhai/tests/call_fn.rs
2020-03-27 23:47:23 +08:00

45 lines
974 B
Rust

#![cfg(not(feature = "no_function"))]
use rhai::{Engine, EvalAltResult, ParseErrorType, INT};
#[test]
fn test_fn() -> Result<(), EvalAltResult> {
let engine = Engine::new();
// Expect duplicated parameters error
match engine
.compile("fn hello(x, x) { x }")
.expect_err("should be error")
.error_type()
{
ParseErrorType::FnDuplicateParam(f, p) if f == "hello" && p == "x" => (),
_ => assert!(false, "wrong error"),
}
Ok(())
}
#[test]
fn test_call_fn() -> Result<(), EvalAltResult> {
let mut engine = Engine::new();
engine.consume(
true,
r"
fn hello(x, y) {
x + y
}
fn hello(x) {
x * 2
}
",
)?;
let r: i64 = engine.call_fn("hello", (42 as INT, 123 as INT))?;
assert_eq!(r, 165);
let r: i64 = engine.call_fn("hello", 123 as INT)?;
assert_eq!(r, 246);
Ok(())
}