Address

class Address {
  private street: string;
  private city: string;
  private state: string;
  private postalCode: string;
 
  constructor(street: string, city: string, state: string, postalCode: string) {
    this.street = street;
    this.city = city;
    this.state = state;
    this.postalCode = postalCode;
  }
 
  equals(other: Address): boolean {
    return (
      this.street === other.street &&
      this.city === other.city &&
      this.state === other.state &&
      this.postalCode === other.postalCode
    );
  }
 
  toString(): string {
    return `${this.street}, ${this.city}, ${this.state} ${this.postalCode}`;
  }
}
 
// Example usage:
const address1 = new Address("123 Main St", "Anytown", "CA", "12345");
const address2 = new Address("456 Elm St", "Othertown", "NY", "67890");
console.log(address1.toString()); // Output: "123 Main St, Anytown, CA 12345"
console.log(address2.toString()); // Output: "456 Elm St, Othertown, NY 67890"

import { Address } from "./address"; // Import the Address class
 
describe("Address", () => {
  describe("constructor", () => {
    it("should create an Address instance with valid components", () => {
      const address = new Address("123 Main St", "Anytown", "CA", "12345");
      expect(address).toBeDefined();
    });
 
    it("should throw an error for missing components", () => {
      expect(() => new Address("123 Main St", "Anytown", "CA")).toThrow();
    });
  });
 
  describe("equals", () => {
    it("should return true when comparing two Address instances with the same components", () => {
      const address1 = new Address("123 Main St", "Anytown", "CA", "12345");
      const address2 = new Address("123 Main St", "Anytown", "CA", "12345");
      expect(address1.equals(address2)).toBe(true);
    });
 
    it("should return false when comparing two Address instances with different components", () => {
      const address1 = new Address("123 Main St", "Anytown", "CA", "12345");
      const address2 = new Address("456 Elm St", "Othertown", "NY", "67890");
      expect(address1.equals(address2)).toBe(false);
    });
  });
 
  describe("toString", () => {
    it("should return the string representation of the Address", () => {
      const address = new Address("123 Main St", "Anytown", "CA", "12345");
      expect(address.toString()).toBe("123 Main St, Anytown, CA 12345");
    });
  });
});