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dust/dust-lang/tests/variables.rs

59 lines
1.5 KiB
Rust

use dust_lang::{
abstract_tree::{Block, Expression, Statement, Type, WithPos},
error::{Error, TypeConflict, ValidationError},
identifier::Identifier,
*,
};
#[test]
fn set_and_get_variable() {
assert_eq!(
interpret("test", "foobar = true; foobar"),
Ok(Some(Value::boolean(true)))
);
}
#[test]
fn set_variable_with_type() {
assert_eq!(
interpret("test", "foobar: bool = true; foobar"),
Ok(Some(Value::boolean(true)))
);
}
#[test]
fn set_variable_with_type_error() {
assert_eq!(
interpret("test", "foobar: str = true")
.unwrap_err()
.errors(),
&vec![Error::Validation {
error: ValidationError::TypeCheck {
conflict: TypeConflict {
actual: Type::Boolean,
expected: Type::String
},
actual_position: (14, 18).into(),
expected_position: (8, 11).into()
},
position: (0, 18).into()
}]
);
}
#[test]
fn function_variable() {
assert_eq!(
interpret("test", "foobar = (x: int) int { x }; foobar"),
Ok(Some(Value::function(
Vec::with_capacity(0),
vec![(Identifier::new("x"), Type::Integer.with_position((13, 16)))],
Type::Integer.with_position((18, 21)),
Block::new(vec![Statement::Expression(Expression::Identifier(
Identifier::new("x").with_position((24, 25))
))])
.with_position((22, 27))
)))
);
}