Tests

mist-test/src/common/decl_test.mist

@@ -0,0 +1,81 @@
+pub void test_let_basic() {
+    let x = 42;
+    assert_eq!(x, 42);
+}
+
+pub void test_let_typed() {
+    Int x = 42;
+    assert_eq!(x, 42);
+
+    String s = "hello";
+    assert_eq!(s, "hello");
+
+    Bool b = true;
+    assert_eq!(b, true);
+
+    Float f = 3.14;
+    assert_eq!(f, 3.14);
+}
+
+pub void test_let_mut() {
+    let mut x = 42;
+    x = 100;
+    assert_eq!(x, 100);
+}
+
+pub void test_let_tuple_destructure() {
+    let [a, b] = (10, "hello");
+    assert_eq!(a, 10);
+    assert_eq!(b, "hello");
+}
+
+pub void test_let_nested_tuple() {
+    let [a, [b, c]] = (1, (2, 3));
+    assert_eq!(a, 1);
+    assert_eq!(b, 2);
+    assert_eq!(c, 3);
+}
+
+pub void test_let_pattern_irrefutable() {
+    let x = 5;
+    let [y, z] = (1, 2);
+    assert_eq!(x, 5);
+    assert_eq!(y, 1);
+    assert_eq!(z, 2);
+}
+
+pub void test_multiple_decls() {
+    let a = 1;
+    let b = 2;
+    let c = 3;
+    assert_eq!(a + b + c, 6);
+}
+
+pub void test_let_with_type_and_init() {
+    Int x = 10;
+    assert_eq!(x, 10);
+}
+
+pub void test_string_literal() {
+    let s = "hello, world!";
+    assert_eq!(s.len(), 13);
+}
+
+pub void test_let_bool() {
+    let t = true;
+    let f = false;
+    assert_eq!(t, !f);
+}
+
+pub void run_tests() {
+    test_let_basic();
+    test_let_typed();
+    test_let_mut();
+    test_let_tuple_destructure();
+    test_let_nested_tuple();
+    test_let_pattern_irrefutable();
+    test_multiple_decls();
+    test_let_with_type_and_init();
+    test_string_literal();
+    test_let_bool();
+}

mist-test/src/common/expr_test.mist

@@ -0,0 +1,152 @@
+use std::cmp;
+
+pub void test_literals() {
+    assert_eq!(42, 42);
+    assert_eq!(3.14, 3.14);
+    assert_eq!(true, true);
+    assert_eq!(false, false);
+    assert_eq!("hello", "hello");
+}
+
+pub void test_tuples() {
+    let t = (1, true, "three");
+    assert_eq!(t.0, 1);
+    assert_eq!(t.1, true);
+    assert_eq!(t.2, "three");
+}
+
+pub void test_arrays() {
+    let arr = [1, 2, 3];
+    assert_eq!(arr[0], 1);
+    assert_eq!(arr[1], 2);
+    assert_eq!(arr[2], 3);
+}
+
+pub void test_array_repeat() {
+    let arr = [0; 5];
+    assert_eq!(arr[0], 0);
+    assert_eq!(arr[4], 0);
+    assert_eq!(arr.len(), 5);
+}
+
+pub void test_binary_arith() {
+    assert_eq!(10 + 5, 15);
+    assert_eq!(10 - 5, 5);
+    assert_eq!(10 * 5, 50);
+    assert_eq!(10 / 5, 2);
+    assert_eq!(10 % 3, 1);
+}
+
+pub void test_binary_cmp() {
+    assert_eq!(5 < 10, true);
+    assert_eq!(10 <= 10, true);
+    assert_eq!(10 > 5, true);
+    assert_eq!(10 >= 10, true);
+    assert_eq!(5 == 5, true);
+    assert_eq!(5 != 10, true);
+}
+
+pub void test_binary_logic() {
+    assert_eq!(true && true, true);
+    assert_eq!(true && false, false);
+    assert_eq!(true || false, true);
+    assert_eq!(false || false, false);
+}
+
+pub void test_binary_bit() {
+    assert_eq!(5 & 3, 1);
+    assert_eq!(5 | 3, 7);
+    assert_eq!(5 ^ 3, 6);
+    assert_eq!(1 << 2, 4);
+    assert_eq!(4 >> 1, 2);
+}
+
+pub void test_prefix() {
+    let x = 42;
+    assert_eq!(-x, -42);
+    assert_eq!(!true, false);
+    assert_eq!(!false, true);
+}
+
+pub void test_ref_deref() {
+    let x = 42;
+    let r = &x;
+    assert_eq!(*r, 42);
+}
+
+pub void test_postfix_inc_dec() {
+    let mut x = 5;
+    x++;
+    assert_eq!(x, 6);
+    x--;
+    assert_eq!(x, 5);
+}
+
+pub void test_as_cast() {
+    let x = 42;
+    assert_eq!(x as f64, 42.0);
+}
+
+pub void test_closure() {
+    let add = fn(a, b) a + b;
+    assert_eq!(add(2, 3), 5);
+}
+
+pub void test_block_expr() {
+    let x = {
+        let y = 10;
+        y + 5
+    };
+    assert_eq!(x, 15);
+}
+
+pub void test_if_expr() {
+    let x = if (true) { 1 } else { 2 };
+    assert_eq!(x, 1);
+
+    let y = if (false) { 1 } else { 2 };
+    assert_eq!(y, 2);
+}
+
+pub void test_range_expr() {
+    let r = 0..5;
+    let mut count = 0;
+    for (i : r) {
+        count++;
+    }
+    assert_eq!(count, 5);
+}
+
+pub void test_binary_assign() {
+    let mut x = 10;
+    x += 5;
+    assert_eq!(x, 15);
+    x -= 3;
+    assert_eq!(x, 12);
+    x *= 2;
+    assert_eq!(x, 24);
+    x /= 4;
+    assert_eq!(x, 6);
+    x %= 4;
+    assert_eq!(x, 2);
+}
+
+pub void run_tests() {
+    test_literals();
+    test_tuples();
+    test_arrays();
+    test_array_repeat();
+    test_binary_arith();
+    test_binary_cmp();
+    test_binary_logic();
+    test_binary_bit();
+    test_prefix();
+    test_ref_deref();
+    test_postfix_inc_dec();
+    test_as_cast();
+    test_closure();
+    test_block_expr();
+    test_if_expr();
+    test_range_expr();
+    test_binary_assign();
+}

mist-test/src/common/statement_test.mist

@@ -0,0 +1,163 @@
+pub void test_var_decl() {
+    let x = 42;
+    assert_eq!(x, 42);
+
+    Int y = 10;
+    assert_eq!(y, 10);
+
+    String name = "mist";
+    assert_eq!(name, "mist");
+}
+
+pub void test_var_decl_with_init() {
+    let mut x = 0;
+    x = 5;
+    assert_eq!(x, 5);
+}
+
+pub void test_if_statement() {
+    let mut x = 0;
+
+    if (true) {
+        x = 1;
+    }
+    assert_eq!(x, 1);
+
+    if (false) {
+        x = 2;
+    } else {
+        x = 3;
+    }
+    assert_eq!(x, 3);
+}
+
+pub void test_if_else_if() {
+    let mut x = 0;
+
+    if (x == 1) {
+        x = 10;
+    } else if (x == 0) {
+        x = 20;
+    } else {
+        x = 30;
+    }
+    assert_eq!(x, 20);
+}
+
+pub void test_while_loop() {
+    let mut count = 0;
+
+    while (count < 5) {
+        count++;
+    }
+    assert_eq!(count, 5);
+}
+
+pub void test_for_loop() {
+    let mut sum = 0;
+
+    for (i : 0..4) {
+        sum += i;
+    }
+    assert_eq!(sum, 6);
+}
+
+pub void test_loop_stmt() {
+    let mut count = 0;
+
+    loop {
+        count++;
+        if (count >= 3) {
+            break;
+        }
+    }
+    assert_eq!(count, 3);
+}
+
+pub void test_break_continue() {
+    let mut sum = 0;
+
+    for (i : 0..10) {
+        if (i % 2 == 0) {
+            continue;
+        }
+        if (i >= 7) {
+            break;
+        }
+        sum += i;
+    }
+    assert_eq!(sum, 1 + 3 + 5);
+}
+
+pub i32 test_return_from_fn() {
+    return 42;
+}
+
+pub void test_block_scope() {
+    let x = {
+        let inner = 10;
+        inner + 5
+    };
+    assert_eq!(x, 15);
+}
+
+pub void test_match_literal() {
+    let x = 2;
+    let mut result = 0;
+
+    match (x) {
+        1 => { result = 10; }
+        2 => { result = 20; }
+        3 => { result = 30; }
+    }
+    assert_eq!(result, 20);
+}
+
+pub void test_match_or_pattern() {
+    let x = 1;
+    let mut result = 0;
+
+    match (x) {
+        1 | 2 => { result = 100; }
+        3 => { result = 200; }
+    }
+    assert_eq!(result, 100);
+}
+
+pub void test_match_default() {
+    let x = 99;
+    let mut result = 0;
+
+    match (x) {
+        1 => { result = 10; }
+        y => { result = y; }
+    }
+    assert_eq!(result, 99);
+}
+
+pub void test_for_with_pattern_destructure() {
+    let pairs = [(1, "a"), (2, "b")];
+    let mut keys = 0;
+
+    for ([k, _] : pairs) {
+        keys += k;
+    }
+    assert_eq!(keys, 3);
+}
+
+pub void run_tests() {
+    test_var_decl();
+    test_var_decl_with_init();
+    test_if_statement();
+    test_if_else_if();
+    test_while_loop();
+    test_for_loop();
+    test_loop_stmt();
+    test_break_continue();
+    assert_eq!(test_return_from_fn(), 42);
+    test_block_scope();
+    test_match_literal();
+    test_match_or_pattern();
+    test_match_default();
+    test_for_with_pattern_destructure();
+}

mist-test/src/common/types_test.mist

@@ -0,0 +1,73 @@
+pub void test_integer_type() {
+    Int x = 42;
+    assert_eq!(x, 42);
+}
+
+pub void test_float_type() {
+    Float x = 3.14;
+    assert_eq!(x, 3.14);
+}
+
+pub void test_bool_type() {
+    Bool x = true;
+    assert_eq!(x, true);
+
+    Bool y = false;
+    assert_eq!(y, false);
+}
+
+pub void test_string_type() {
+    String s = "hello";
+    assert_eq!(s, "hello");
+}
+
+pub void test_tuple_type() {
+    [Int, String] t = (42, "answer");
+    assert_eq!(t.0, 42);
+    assert_eq!(t.1, "answer");
+}
+
+pub void test_ref_type() {
+    Int x = 42;
+    Int* r = &x;
+    assert_eq!(*r, 42);
+}
+
+pub void test_mut_ref_type() {
+    let mut x = 42;
+    Int mut* r = &mut x;
+    *r = 100;
+    assert_eq!(x, 100);
+}
+
+pub void test_void_type() {
+    void nothing() {
+    }
+    nothing();
+}
+
+pub void test_fn_return_type() {
+    Int add(Int a, Int b) {
+        a + b
+    }
+    assert_eq!(add(3, 4), 7);
+}
+
+pub void test_fn_return_void() {
+    void do_nothing() {
+    }
+    do_nothing();
+}
+
+pub void run_tests() {
+    test_integer_type();
+    test_float_type();
+    test_bool_type();
+    test_string_type();
+    test_tuple_type();
+    test_ref_type();
+    test_mut_ref_type();
+    test_void_type();
+    test_fn_return_type();
+    test_fn_return_void();
+}

mist-test/src/items/attribute_test.mist

@@ -0,0 +1,21 @@
+#[derive(Debug)]
+pub struct Debuggable {
+    Int value,
+}
+
+pub void test_derive_attribute() {
+    let d = Debuggable { value: 42 };
+    assert_eq!(d.value, 42);
+}
+
+#[allow(unused_variables)]
+pub void test_allow_attribute() {
+    let x = 42;
+    let y = "unused";
+    assert_eq!(x, 42);
+}
+
+pub void run_tests() {
+    test_derive_attribute();
+    test_allow_attribute();
+}

mist-test/src/items/class_test.mist

@@ -0,0 +1,56 @@
+pub class Counter {
+    pub Int count;
+
+    pub constructor(Int start) {
+        self.count = start;
+    }
+
+    pub void increment(self mut*) {
+        self.count++;
+    }
+
+    pub Int get(self*) -> Int {
+        self.count
+    }
+}
+
+pub void test_class_create() {
+    let c = Counter::new(0);
+    assert_eq!(c.get(), 0);
+}
+
+pub void test_class_method() {
+    let mut c = Counter::new(5);
+    c.increment();
+    assert_eq!(c.get(), 6);
+}
+
+pub void test_class_field_access() {
+    let c = Counter::new(42);
+    assert_eq!(c.count, 42);
+}
+
+class NamedCounter : Counter {
+    pub String name;
+
+    pub constructor(Int start, String name) {
+        self.name = name;
+    }
+
+    pub String get_name(self*) -> String {
+        self.name
+    }
+}
+
+pub void test_class_inherit() {
+    let nc = NamedCounter::new(10, "test");
+    assert_eq!(nc.get_name(), "test");
+    assert_eq!(nc.count, 10);
+}
+
+pub void run_tests() {
+    test_class_create();
+    test_class_method();
+    test_class_field_access();
+    test_class_inherit();
+}

mist-test/src/items/enum_test.mist

@@ -0,0 +1,60 @@
+enum OptionInt {
+    None,
+    Some(Int),
+}
+
+pub void test_enum_named() {
+    let x = OptionInt::None;
+    match (x) {
+        OptionInt::None => { assert_eq!(1, 1); }
+        OptionInt::Some[_] => { assert_eq!(0, 1); }
+    }
+}
+
+pub void test_enum_tuple() {
+    let x = OptionInt::Some(42);
+    match (x) {
+        OptionInt::None => { assert_eq!(0, 1); }
+        OptionInt::Some[v] => { assert_eq!(v, 42); }
+    }
+}
+
+enum Shape {
+    Circle { Int radius },
+    Rect { Int w, Int h },
+}
+
+pub void test_enum_struct() {
+    let c = Shape::Circle { radius: 5 };
+    match (c) {
+        Shape::Circle { radius } => { assert_eq!(radius, 5); }
+        Shape::Rect { .. } => { assert_eq!(0, 1); }
+    }
+
+    let r = Shape::Rect { w: 3, h: 4 };
+    match (r) {
+        Shape::Circle { .. } => { assert_eq!(0, 1); }
+        Shape::Rect { w, h } => { assert_eq!(w * h, 12); }
+    }
+}
+
+enum Color {
+    Red,
+    Green,
+    Blue,
+}
+
+pub void test_enum_eq() {
+    let c = Color::Red;
+    match (c) {
+        Color::Red => { assert_eq!(1, 1); }
+        _ => { assert_eq!(0, 1); }
+    }
+}
+
+pub void run_tests() {
+    test_enum_named();
+    test_enum_tuple();
+    test_enum_struct();
+    test_enum_eq();
+}

mist-test/src/items/function_test.mist

@@ -0,0 +1,62 @@
+pub void test_basic_function() {
+    void greet() {
+        let x = 1;
+        x++;
+    }
+    greet();
+}
+
+pub void test_fn_params() {
+    Int add(Int a, Int b) {
+        a + b
+    }
+    assert_eq!(add(2, 3), 5);
+}
+
+pub void test_fn_return() -> Int {
+    42
+}
+
+pub void test_fn_early_return() -> Int {
+    return 100;
+    0
+}
+
+pub void test_fn_mut_param(Int mut x) -> Int {
+    x = x + 10;
+    x
+}
+
+pub void test_method_call() {
+    String s = "hello";
+    assert_eq!(s.len(), 5);
+    assert_eq!(s.to_uppercase(), "HELLO");
+}
+
+pub void test_nested_fn_calls() {
+    Int add(Int a, Int b) {
+        a + b
+    }
+    Int triple(Int x) {
+        add(x, add(x, x))
+    }
+    assert_eq!(triple(5), 15);
+}
+
+pub void test_recursive_fn() {
+    Int factorial(Int n) {
+        if (n <= 1) { 1 } else { n * factorial(n - 1) }
+    }
+    assert_eq!(factorial(5), 120);
+}
+
+pub void run_tests() {
+    test_basic_function();
+    test_fn_params();
+    assert_eq!(test_fn_return(), 42);
+    assert_eq!(test_fn_early_return(), 100);
+    assert_eq!(test_fn_mut_param(5), 15);
+    test_method_call();
+    test_nested_fn_calls();
+    test_recursive_fn();
+}

mist-test/src/items/impl_test.mist

@@ -0,0 +1,54 @@
+struct Vector2 {
+    Int x,
+    Int y,
+}
+
+impl Vector2 {
+    pub Int magnitude(self*) -> Int {
+        self.x * self.x + self.y * self.y
+    }
+}
+
+pub void test_inherent_impl() {
+    let v = Vector2 { x: 3, y: 4 };
+    assert_eq!(v.magnitude(), 25);
+}
+
+trait Display {
+    String display(self*);
+}
+
+impl Display for Vector2 {
+    String display(self*) {
+        format!("({}, {})", self.x, self.y)
+    }
+}
+
+pub void test_trait_impl_block() {
+    let v = Vector2 { x: 1, y: 2 };
+    let s = v.display();
+    assert_eq!(s.len() > 0, true);
+}
+
+impl Vector2 {
+    pub Vector2 add(self*, Vector2 other) {
+        Vector2 {
+            x: self.x + other.x,
+            y: self.y + other.y,
+        }
+    }
+}
+
+pub void test_multiple_impls() {
+    let a = Vector2 { x: 1, y: 2 };
+    let b = Vector2 { x: 3, y: 4 };
+    let c = a.add(b);
+    assert_eq!(c.x, 4);
+    assert_eq!(c.y, 6);
+}
+
+pub void run_tests() {
+    test_inherent_impl();
+    test_trait_impl_block();
+    test_multiple_impls();
+}

mist-test/src/items/struct_test.mist

@@ -0,0 +1,44 @@
+struct Point {
+    Int x,
+    Int y,
+}
+
+pub void test_struct_create_access() {
+    let p = Point { x: 10, y: 20 };
+    assert_eq!(p.x, 10);
+    assert_eq!(p.y, 20);
+}
+
+pub void test_struct_mut_field() {
+    let mut p = Point { x: 1, y: 2 };
+    p.x = 100;
+    assert_eq!(p.x, 100);
+}
+
+pub void test_struct_destructure() {
+    let p = Point { x: 3, y: 4 };
+    let Point { x, y } = p;
+    assert_eq!(x, 3);
+    assert_eq!(y, 4);
+}
+
+pub void test_struct_nested() {
+    struct Line {
+        Point start,
+        Point end,
+    }
+
+    let l = Line {
+        start: Point { x: 0, y: 0 },
+        end: Point { x: 5, y: 10 },
+    };
+    assert_eq!(l.start.x, 0);
+    assert_eq!(l.end.y, 10);
+}
+
+pub void run_tests() {
+    test_struct_create_access();
+    test_struct_mut_field();
+    test_struct_destructure();
+    test_struct_nested();
+}

mist-test/src/items/trait_test.mist

@@ -0,0 +1,39 @@
+trait Speak {
+    String speak(self*);
+}
+
+struct Dog {
+    String name,
+}
+
+impl Speak for Dog {
+    String speak(self*) {
+        "woof"
+    }
+}
+
+pub void test_trait_impl() {
+    let d = Dog { name: "Rex" };
+    assert_eq!(d.speak(), "woof");
+}
+
+trait Greet : Speak {
+    String greet(self*);
+}
+
+impl Greet for Dog {
+    String greet(self*) {
+        "hello"
+    }
+}
+
+pub void test_trait_with_requirement() {
+    let d = Dog { name: "Buddy" };
+    assert_eq!(d.speak(), "woof");
+    assert_eq!(d.greet(), "hello");
+}
+
+pub void run_tests() {
+    test_trait_impl();
+    test_trait_with_requirement();
+}

mist-test/src/main.mist

@@ -1,3 +1,18 @@
 void main() {
-    test_package::hello();
+    println!("running common tests...");
+    common::expr_test::run_tests();
+    common::statement_test::run_tests();
+    common::decl_test::run_tests();
+    common::types_test::run_tests();
+
+    println!("running items tests...");
+    items::function_test::run_tests();
+    items::struct_test::run_tests();
+    items::enum_test::run_tests();
+    items::class_test::run_tests();
+    items::trait_test::run_tests();
+    items::impl_test::run_tests();
+    items::attribute_test::run_tests();
+
+    println!("\x1b[32m\nAll tests passed!\x1b[0m");
 }

mist-test/src/test_package.mist

@@ -1,3 +0,0 @@
-pub void hello() {
-    println!("Hello")
-}