to_string.cos

use * from "assert"

class MyClass {
  public string fn to_string {
    "this is my class"
  }
}

class MyOtherClass {}

MyClass my_class = new MyClass
Assert::eq(my_class.to_string, "this is my class")
Assert::eq(<string>my_class, "this is my class")

MyOtherClass my_class = new MyOtherClass
Assert::eq(my_class.to_string, "MyOtherClass")
Assert::eq(<string>my_class, "MyOtherClass")