114 lines
2.0 KiB
Rust
114 lines
2.0 KiB
Rust
use dust_lang::{
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abstract_tree::Identifier,
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error::{Error, ValidationError},
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*,
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};
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#[test]
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fn function_call() {
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assert_eq!(
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interpret(
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"
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foobar = (message : str) : str { message }
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foobar('Hiya')
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",
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),
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Ok(Some(Value::string("Hiya".to_string())))
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);
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}
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#[test]
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fn call_empty_function() {
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assert_eq!(
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interpret(
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"
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foobar = (message : str) : none {}
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foobar('Hiya')
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",
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),
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Ok(None)
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);
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}
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#[test]
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fn callback() {
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assert_eq!(
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interpret(
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"
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foobar = (cb : () -> str) : str {
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cb()
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}
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foobar(() : str { 'Hiya' })
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",
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),
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Ok(Some(Value::string("Hiya".to_string())))
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);
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}
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#[test]
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fn built_in_function_call() {
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assert_eq!(interpret("io.write_line('Hiya')"), Ok(None));
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}
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#[test]
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fn function_context_does_not_capture_values() {
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assert_eq!(
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interpret(
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"
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x = 1
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foo = () : any { x }
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"
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),
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Err(vec![Error::Validation {
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error: ValidationError::VariableNotFound(Identifier::new("x")),
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position: (32, 66).into()
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}])
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);
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assert_eq!(
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interpret(
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"
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x = 1
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foo = (x : int) : int { x }
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foo(2)
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"
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),
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Ok(Some(Value::integer(2)))
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);
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}
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#[test]
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fn function_context_captures_functions() {
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assert_eq!(
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interpret(
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"
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bar = () : int { 2 }
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foo = () : int { bar() }
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foo()
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"
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),
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Ok(Some(Value::integer(2)))
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);
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}
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#[test]
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fn recursion() {
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assert_eq!(
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interpret(
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"
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fib = (i : int) : int {
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if i <= 1 {
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1
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} else {
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fib(i - 1) + fib(i - 2)
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}
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}
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fib(8)
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"
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),
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Ok(Some(Value::integer(34)))
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);
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}
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