Libraries: Move to Userland/Libraries/

Userland/Libraries/LibJS/Tests/classes/class-static.js

@@ -0,0 +1,72 @@
+test("basic functionality", () => {
+    class A {
+        static method() {
+            return 10;
+        }
+    }
+
+    expect(A.method()).toBe(10);
+    expect(new A().method).toBeUndefined();
+});
+
+test("extended name syntax", () => {
+    class A {
+        static method() {
+            return 1;
+        }
+
+        static 12() {
+            return 2;
+        }
+
+        static [`he${"llo"}`]() {
+            return 3;
+        }
+    }
+
+    expect(A.method()).toBe(1);
+    expect(A[12]()).toBe(2);
+    expect(A.hello()).toBe(3);
+});
+
+test("bound |this|", () => {
+    class A {
+        static method() {
+            expect(this).toBe(A);
+        }
+    }
+
+    A.method();
+});
+
+test("inherited static methods", () => {
+    class Parent {
+        static method() {
+            return 3;
+        }
+    }
+
+    class Child extends Parent {}
+
+    expect(Parent.method()).toBe(3);
+    expect(Child.method()).toBe(3);
+    expect(new Parent()).not.toHaveProperty("method");
+    expect(new Child()).not.toHaveProperty("method");
+});
+
+test("static method overriding", () => {
+    class Parent {
+        static method() {
+            return 3;
+        }
+    }
+
+    class Child extends Parent {
+        static method() {
+            return 10;
+        }
+    }
+
+    expect(Parent.method()).toBe(3);
+    expect(Child.method()).toBe(10);
+});