Tests

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();
+}