Why is Unit Testing So Hard - Example 2

why-is-unit-testing-so-hard-3.cs

public class PlayerTest
{
  [Test]
  public void GetDamageFromWeapon()
  {
    var weapon = Substitute.For<Weapon>();
    weapon.Damage.Returns(5.0);
    
    Assert.AreEqual(5.0, new Player(weapon).Damage);
  }
  
  [Test]
  public void GetDamageFromPlayer()
  {
    var player = Substitute.For<IPlayer>();
    player.Damage.Returns(5.0);
    
    Assert.AreEqual("Weapon Damage: 5", new PlayerView().WeaponLabelText());
}