87 lines
1.6 KiB
Rust
87 lines
1.6 KiB
Rust
use dust_lang::*;
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#[test]
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fn function_call_with_type_argument() {
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assert_eq!(
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interpret(
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"test",
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"
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foobar = fn T (x: T) -> T { x }
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foobar::(int)::(42)
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",
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),
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Ok(Some(Value::integer(42)))
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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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"test",
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"
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foobar = fn (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 callback() {
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assert_eq!(
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interpret(
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"test",
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"
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foobar = fn (cb: fn () -> str) -> str {
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cb()
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}
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foobar(fn () -> 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("test", "io.write_line('Hiya')"), Ok(None));
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}
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#[test]
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fn function_context_captures_values() {
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assert_eq!(
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interpret(
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"test",
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"
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bar = fn () -> int { 2 }
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foo = fn () -> 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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"test",
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"
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fib = fn (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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