dust/dust-lang/tests/structs.rs

109 lines
2.4 KiB
Rust

use dust_lang::{
abstract_tree::{Identifier, Type},
error::{Error, TypeConflict, ValidationError},
*,
};
#[test]
fn simple_structure() {
assert_eq!(
interpret(
"
struct Foo {
bar : int,
baz : str,
}
Foo {
bar = 42,
baz = 'hiya',
}
"
),
Ok(Some(Value::structure(
Identifier::new("Foo"),
vec![
(Identifier::new("bar"), Value::integer(42)),
(Identifier::new("baz"), Value::string("hiya".to_string())),
]
)))
)
}
#[test]
fn field_type_error() {
assert_eq!(
interpret(
"
struct Foo {
bar : int,
}
Foo {
bar = 'hiya',
}
"
),
Err(vec![Error::Validation {
error: ValidationError::TypeCheck {
conflict: TypeConflict {
actual: Type::String,
expected: Type::Integer
},
actual_position: (128, 134).into(),
expected_position: (56, 59).into()
},
position: (96, 153).into()
}])
)
}
#[test]
fn nested_structure() {
assert_eq!(
interpret(
"
struct Bar {
baz : int
}
struct Foo {
bar : Bar
}
Foo {
bar = Bar {
baz = 42
}
}
"
),
Ok(Some(Value::structure(
Identifier::new("Foo"),
vec![(
Identifier::new("bar"),
Value::structure(
Identifier::new("Bar"),
vec![(Identifier::new("baz"), Value::integer(42))]
)
),]
)))
)
}
#[test]
fn undefined_struct() {
assert_eq!(
interpret(
"
Foo {
bar = 42
}
"
),
Err(vec![Error::Validation {
error: error::ValidationError::TypeNotFound(Identifier::new("Foo")),
position: (17, 69).into()
}])
)
}