rhai/tests/arrays.rs

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#![cfg(not(feature = "no_index"))]
use rhai::{Array, Engine, EvalAltResult, RegisterFn, INT};
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#[test]
fn test_arrays() -> Result<(), Box<EvalAltResult>> {
let engine = Engine::new();
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assert_eq!(engine.eval::<INT>("let x = [1, 2, 3]; x[1]")?, 2);
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assert_eq!(engine.eval::<INT>("let x = [1, 2, 3,]; x[1]")?, 2);
assert_eq!(engine.eval::<INT>("let y = [1, 2, 3]; y[1] = 5; y[1]")?, 5);
assert_eq!(
engine.eval::<char>(r#"let y = [1, [ 42, 88, "93" ], 3]; y[1][2][1]"#)?,
'3'
);
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assert!(engine.eval::<bool>("let y = [1, 2, 3]; 2 in y")?);
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#[cfg(not(feature = "no_object"))]
assert_eq!(
engine.eval::<INT>(
r"
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let x = [2, 9];
x.insert(-1, 1);
x.insert(999, 3);
let r = x.remove(2);
let y = [4, 5];
x.append(y);
x.len + r
"
)?,
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14
);
assert_eq!(
engine.eval::<INT>(
r"
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let x = [1, 2, 3];
x += [4, 5];
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len(x)
"
)?,
5
);
assert_eq!(
engine
.eval::<Array>(
r"
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let x = [1, 2, 3];
let y = [4, 5];
x + y
"
)?
.len(),
5
);
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Ok(())
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}
#[test]
#[cfg(not(feature = "no_object"))]
fn test_array_with_structs() -> Result<(), Box<EvalAltResult>> {
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#[derive(Clone)]
struct TestStruct {
x: INT,
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}
impl TestStruct {
fn update(&mut self) {
self.x += 1000;
}
fn get_x(&mut self) -> INT {
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self.x
}
fn set_x(&mut self, new_x: INT) {
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self.x = new_x;
}
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fn new() -> Self {
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TestStruct { x: 1 }
}
}
let mut engine = Engine::new();
engine.register_type::<TestStruct>();
engine.register_get_set("x", TestStruct::get_x, TestStruct::set_x);
engine.register_fn("update", TestStruct::update);
engine.register_fn("new_ts", TestStruct::new);
assert_eq!(engine.eval::<INT>("let a = [new_ts()]; a[0].x")?, 1);
assert_eq!(
engine.eval::<INT>(
r"
let a = [new_ts()];
a[0].x = 100;
a[0].update();
a[0].x
"
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)?,
1100
);
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Ok(())
}