79 lines
2.2 KiB
Rust
79 lines
2.2 KiB
Rust
use rhai::{Engine, EvalAltResult, RegisterFn, INT};
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use std::sync::{Arc, RwLock};
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#[test]
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fn test_print() -> Result<(), Box<EvalAltResult>> {
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let logbook = Arc::new(RwLock::new(Vec::<String>::new()));
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// Redirect print/debug output to 'log'
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let log1 = logbook.clone();
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let log2 = logbook.clone();
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let mut engine = Engine::new();
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engine
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.on_print(move |s| log1.write().unwrap().push(format!("entry: {}", s)))
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.on_debug(move |s| log2.write().unwrap().push(format!("DEBUG: {}", s)));
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// Evaluate script
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engine.eval::<()>("print(40 + 2)")?;
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engine.eval::<()>(r#"debug("hello!")"#)?;
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// 'logbook' captures all the 'print' and 'debug' output
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assert_eq!(logbook.read().unwrap().len(), 2);
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assert_eq!(logbook.read().unwrap()[0], "entry: 42");
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assert_eq!(logbook.read().unwrap()[1], r#"DEBUG: "hello!""#);
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for entry in logbook.read().unwrap().iter() {
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println!("{}", entry);
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}
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Ok(())
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}
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#[derive(Debug, Clone, Eq, PartialEq, Hash, Default)]
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struct MyStruct {
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field: INT,
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}
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impl std::fmt::Display for MyStruct {
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fn fmt(&self, f: &mut std::fmt::Formatter<'_>) -> std::fmt::Result {
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write!(f, "hello: {}", self.field)
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}
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}
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#[cfg(not(feature = "no_object"))]
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#[test]
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fn test_print_custom_type() -> Result<(), Box<EvalAltResult>> {
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let mut engine = Engine::new();
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engine
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.register_type_with_name::<MyStruct>("MyStruct")
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.register_fn("to_debug", |x: &mut MyStruct| x.to_string())
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.register_fn("debug", |x: &mut MyStruct| x.to_string())
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.register_fn("new_ts", || MyStruct { field: 42 });
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engine.consume("let x = new_ts(); debug(x);")?;
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#[cfg(not(feature = "no_index"))]
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assert_eq!(
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engine.eval::<String>(
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r#"
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let x = [ 123, true, (), "world", new_ts() ];
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x.to_string()
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"#
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)?,
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r#"[123, true, (), "world", hello: 42]"#
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);
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assert!(engine
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.eval::<String>(
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r#"
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let x = #{ a:123, b:true, c:(), d:"world", e:new_ts() };
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x.to_string()
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"#
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)?
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.contains(r#""e": hello: 42"#));
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Ok(())
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}
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