diff options
Diffstat (limited to 'tests')
| -rw-r--r-- | tests/test_checking.rs | 51 | ||||
| -rw-r--r-- | tests/test_execution.rs | 20 | ||||
| -rw-r--r-- | tests/test_parser.rs | 18 |
3 files changed, 47 insertions, 42 deletions
diff --git a/tests/test_checking.rs b/tests/test_checking.rs index a4b5fd3..286283b 100644 --- a/tests/test_checking.rs +++ b/tests/test_checking.rs @@ -7,14 +7,14 @@ use chrysanthemum::util::*; // rust you KNOW these are &'static strs const sanity_check: &'static str = "413: int"; -const negate: &'static str = "(λx. if x then 0 else 1): (bool -> bool)"; +const negate: &'static str = "(λx. if x then false else true): (bool -> bool)"; const basic_abstraction: &'static str = "(λx. x): (int -> int)"; const basic_application: &'static str = "((λx. x): (int -> int)) 413"; const correct_cond_abs: &'static str = "(λx. if x then 1 else 0): (bool -> int)"; -const correct_cond: &'static str = "if 0 then 1: nat else 0: nat"; +const correct_cond: &'static str = "if false then 1: nat else 0: nat"; const not_inferrable: &'static str = "(λx. (λy. (λz. if x then y else z)))"; -const incorrect_branches: &'static str = "if 0: bool then 1: bool else 2: int"; -const incorrect_cond_abs: &'static str = "(λx. if x then 1: bool else 0: bool): (int -> bool)"; +const incorrect_branches: &'static str = "if false: bool then true: bool else 2: int"; +const incorrect_cond_abs: &'static str = "(λx. if x then true: bool else false: bool): (int -> bool)"; #[test] fn test_parsing_succeeds() { @@ -31,31 +31,34 @@ fn test_parsing_succeeds() { #[test] fn test_inference() { - assert_eq!(infer(Context::new(), parse_lambda(sanity_check).unwrap()), Ok(Int)); - assert_eq!(infer(Context::new(), parse_lambda(negate).unwrap()), Ok(Func(Bool, Bool))); - assert_eq!(infer(Context::new(), parse_lambda(basic_abstraction).unwrap()), Ok(Func(Int, Int))); - assert_eq!(infer(Context::new(), parse_lambda(basic_application).unwrap()), Ok(Int)); - assert_eq!(infer(Context::new(), parse_lambda(correct_cond_abs).unwrap()), Ok(Func(Bool, Int))); - assert_eq!(infer(Context::new(), parse_lambda(correct_cond).unwrap()), Ok(Nat)); - assert!(infer(Context::new(), parse_lambda(not_inferrable).unwrap()).is_err()); - assert!(infer(Context::new(), parse_lambda(incorrect_branches).unwrap()).is_err()); - assert!(infer(Context::new(), parse_lambda(incorrect_cond_abs).unwrap()).is_err()); + let context = Context::new(); + assert_eq!(infer(&context, parse_lambda(sanity_check).unwrap()), Ok(Int)); + assert_eq!(infer(&context, parse_lambda(negate).unwrap()), Ok(Func(Bool, Bool))); + assert_eq!(infer(&context, parse_lambda(basic_abstraction).unwrap()), Ok(Func(Int, Int))); + assert_eq!(infer(&context, parse_lambda(basic_application).unwrap()), Ok(Int)); + assert_eq!(infer(&context, parse_lambda(correct_cond_abs).unwrap()), Ok(Func(Bool, Int))); + assert_eq!(infer(&context, parse_lambda(correct_cond).unwrap()), Ok(Nat)); + assert!(infer(&context, parse_lambda(not_inferrable).unwrap()).is_err()); + assert!(infer(&context, parse_lambda(incorrect_branches).unwrap()).is_err()); + assert!(infer(&context, parse_lambda(incorrect_cond_abs).unwrap()).is_err()); } #[test] fn test_checking() { + let context = Context::new(); + // uninteresting - assert!(check(Context::new(), parse_lambda(sanity_check).unwrap(), Int).is_ok()); - assert!(check(Context::new(), parse_lambda(negate).unwrap(), Func(Bool, Bool)).is_ok()); - assert!(check(Context::new(), parse_lambda(basic_abstraction).unwrap(), Func(Int, Int)).is_ok()); - assert!(check(Context::new(), parse_lambda(basic_application).unwrap(), Int).is_ok()); - assert!(check(Context::new(), parse_lambda(correct_cond_abs).unwrap(), Func(Bool, Int)).is_ok()); - assert!(check(Context::new(), parse_lambda(correct_cond).unwrap(), Nat).is_ok()); - assert!(check(Context::new(), parse_lambda(incorrect_branches).unwrap(), Unit).is_err()); - assert!(check(Context::new(), parse_lambda(incorrect_cond_abs).unwrap(), Error).is_err()); + assert!(check(&context, parse_lambda(sanity_check).unwrap(), &Int).is_ok()); + assert!(check(&context, parse_lambda(negate).unwrap(), &Func(Bool, Bool)).is_ok()); + assert!(check(&context, parse_lambda(basic_abstraction).unwrap(), &Func(Int, Int)).is_ok()); + assert!(check(&context, parse_lambda(basic_application).unwrap(), &Int).is_ok()); + assert!(check(&context, parse_lambda(correct_cond_abs).unwrap(), &Func(Bool, Int)).is_ok()); + assert!(check(&context, parse_lambda(correct_cond).unwrap(), &Nat).is_ok()); + assert!(check(&context, parse_lambda(incorrect_branches).unwrap(), &Unit).is_err()); + assert!(check(&context, parse_lambda(incorrect_cond_abs).unwrap(), &Error).is_err()); // more fun - assert!(check(Context::new(), parse_lambda(not_inferrable).unwrap(), Func(Bool, Func(Int, Func(Int, Int)))).is_ok()); - assert!(check(Context::new(), parse_lambda(not_inferrable).unwrap(), Func(Bool, Func(Nat, Func(Nat, Nat)))).is_ok()); - assert!(check(Context::new(), parse_lambda(not_inferrable).unwrap(), Func(Bool, Func(Unit, Func(Unit, Unit)))).is_ok()); + assert!(check(&context, parse_lambda(not_inferrable).unwrap(), &Func(Bool, Func(Int, Func(Int, Int)))).is_ok()); + assert!(check(&context, parse_lambda(not_inferrable).unwrap(), &Func(Bool, Func(Nat, Func(Nat, Nat)))).is_ok()); + assert!(check(&context, parse_lambda(not_inferrable).unwrap(), &Func(Bool, Func(Unit, Func(Unit, Unit)))).is_ok()); } diff --git a/tests/test_execution.rs b/tests/test_execution.rs index 5aeac19..d9b1c5e 100644 --- a/tests/test_execution.rs +++ b/tests/test_execution.rs @@ -4,18 +4,20 @@ use chrysanthemum::util::*; #[test] fn test_simple() { - assert_eq!(execute(Context::new(), Const(0)), Ok(Term(0, Empty))); - assert_eq!(execute(Context::new(), Const(123)), Ok(Term(123, Empty))); - assert_eq!(execute(Context::new(), Const(123)), Ok(Term(123, Empty))); - assert!(execute(Context::new(), Var("x")).is_err()); + let context = Context::new(); + assert_eq!(execute(&context, Const(Term::Boolean(false))), Ok(Term::Boolean(false))); + assert_eq!(execute(&context, Const(Term::Natural(123))), Ok(Term::Natural(123))); + assert_eq!(execute(&context, Const(Term::Integer(123))), Ok(Term::Integer(123))); + assert!(execute(&context, Var("x")).is_err()); } #[test] fn test_complex() { let mut context = Context::new(); - context.insert(String::from("x"), Term(413, Empty)); - context.insert(String::from("y"), Term(1, Empty)); - assert_eq!(execute(context.clone(), Var("x")), Ok(Term(413, Empty))); - assert_eq!(execute(context.clone(), Cond(Var("y"), Const(612), Var("x"))), Ok(Term(612, Empty))); - assert_eq!(execute(context.clone(), App(Abs("z", Cond(Const(0), Var("x"), Var("z"))), Const(1025))), Ok(Term(1025, Empty))); + context.insert(String::from("x"), Term::Natural(413)); + context.insert(String::from("y"), Term::Boolean(true)); + assert_eq!(execute(&context, Var("x")), Ok(Term::Natural(413))); + assert_eq!(execute(&context, Cond(Var("y"), Const(Term::Integer(612)), Var("x"))), Ok(Term::Integer(612))); + assert_eq!(execute(&context, + App(Abs("z", Cond(Const(Term::Boolean(false)), Var("x"), Var("z"))), Const(Term::Integer(1025)))), Ok(Term::Integer(1025))); } diff --git a/tests/test_parser.rs b/tests/test_parser.rs index a7d15f8..f305483 100644 --- a/tests/test_parser.rs +++ b/tests/test_parser.rs @@ -6,7 +6,7 @@ use chrysanthemum::util::*; #[test] fn test_simple_phrases() { - assert_eq!(parse_lambda("123"), Ok(Const(123))); + assert_eq!(parse_lambda("-123"), Ok(Const(Term::Integer(-123)))); assert_eq!(parse_lambda("x12"), Ok(Var("x12"))); assert_eq!(parse_lambda("x12x2"), Ok(Var("x12x2"))); // so i _don't_ want these to be valid identifiers: @@ -18,7 +18,7 @@ fn test_simple_phrases() { #[test] fn test_simple_annotations() { assert_eq!(parse_lambda("t: int"), Ok(Ann(Var("t"), Int))); - assert_eq!(parse_lambda("12: nat"), Ok(Ann(Const(12), Nat))); + assert_eq!(parse_lambda("12: nat"), Ok(Ann(Const(Term::Natural(12)), Nat))); assert!(parse_lambda("t: fake").is_err()); } @@ -33,22 +33,22 @@ fn test_simple_expressions() { assert_eq!(parse_lambda("(λx.y) x"), Ok(App(Abs("x", Var("y")), Var("x")))); assert_eq!(parse_lambda("if x then y else z"), Ok(Cond(Var("x"), Var("y"), Var("z")))); assert_eq!(parse_lambda("if xeme then yak else zebra"), Ok(Cond(Var("xeme"), Var("yak"), Var("zebra")))); - assert_eq!(parse_lambda("if 413 then 612 else 1025"), Ok(Cond(Const(413), Const(612), Const(1025)))); // invalid, but should parse + assert_eq!(parse_lambda("if 413 then 612 else 1025"), Ok(Cond(Const(Term::Natural(413)), Const(Term::Natural(612)), Const(Term::Natural(1025))))); // invalid, but should parse } #[test] fn test_complex_expressions() { - assert_eq!(parse_lambda("(λy.if y then 0 else 1) z"), Ok(App(Abs("y", Cond(Var("y"), Const(0), Const(1))), Var("z")))); + assert_eq!(parse_lambda("(λy.if y then false else true) z"), Ok(App(Abs("y", Cond(Var("y"), Const(Term::Boolean(false)), Const(Term::Boolean(true)))), Var("z")))); } #[test] fn test_complex_annotations() { assert_eq!(parse_lambda("(lambda x . y) : int"), Ok(Ann(Abs("x", Var("y")), Int))); - assert_eq!(parse_lambda("((lambda x. y): (int -> int)) 413: int"), Ok(App(Ann(Abs("x", Var("y")), Func(Int, Int) ), Ann(Const(413), Int)))); - assert_eq!(parse_lambda("if 0: bool then 1: bool else 2: int"), Ok(Cond(Ann(Const(0), Bool), Ann(Const(1), Bool), Ann(Const(2), Int)))); - assert_eq!(parse_lambda("(lambda x. if x then 1: bool else 0: bool): (int -> bool)"), Ok(Ann(Abs("x", Cond(Var("x"), Ann(Const(1), Bool), Ann(Const(0), Bool))), Func(Int, Bool)))); - assert_eq!(parse_lambda("(lambda x. if x then 1: int else 0: int): (bool -> int)"), Ok(Ann(Abs("x", Cond(Var("x"), Ann(Const(1), Int), Ann(Const(0), Int))), Func(Bool, Int)))); - assert_eq!(parse_lambda("(lambda x. if x then 0 else 1): (bool -> bool)"), Ok(Ann(Abs("x", Cond(Var("x"), Const(0), Const(1))), Func(Bool, Bool)))); + assert_eq!(parse_lambda("((lambda x. y): (int -> int)) -413: int"), Ok(App(Ann(Abs("x", Var("y")), Func(Int, Int) ), Ann(Const(Term::Integer(-413)), Int)))); + assert_eq!(parse_lambda("if false: bool then true: bool else 2: int"), Ok(Cond(Ann(Const(Term::Boolean(false)), Bool), Ann(Const(Term::Boolean(true)), Bool), Ann(Const(Term::Natural(2)), Int)))); + assert_eq!(parse_lambda("(lambda x. if x then true: bool else false: bool): (int -> bool)"), Ok(Ann(Abs("x", Cond(Var("x"), Ann(Const(Term::Boolean(true)), Bool), Ann(Const(Term::Boolean(false)), Bool))), Func(Int, Bool)))); + assert_eq!(parse_lambda("(lambda x. if x then 1: int else 0: int): (bool -> int)"), Ok(Ann(Abs("x", Cond(Var("x"), Ann(Const(Term::Natural(1)), Int), Ann(Const(Term::Natural(0)), Int))), Func(Bool, Int)))); + assert_eq!(parse_lambda("(lambda x. if x then false else true): (bool -> bool)"), Ok(Ann(Abs("x", Cond(Var("x"), Const(Term::Boolean(false)), Const(Term::Boolean(true)))), Func(Bool, Bool)))); } const program: &'static str = |