16 lines
460 B
Rust
16 lines
460 B
Rust
use rhai::{Engine, EvalAltResult, INT};
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#[test]
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fn test_decrement() -> Result<(), Box<EvalAltResult>> {
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let engine = Engine::new();
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assert_eq!(engine.eval::<INT>("let x = 10; x -= 7; x")?, 3);
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assert!(matches!(
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*engine.eval::<String>(r#"let s = "test"; s -= "ing"; s"#).expect_err("expects error"),
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EvalAltResult::ErrorFunctionNotFound(err, _) if err == "- (&str | ImmutableString, &str | ImmutableString)"
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));
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Ok(())
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}
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