Testing out the ReactiveCommand

UniRx_ReactiveCommandTest.cs

public class UniRxUnitTests {    
    [Test]
    public void ReactiveCommandTest_2() {
        // Arrange
        ReactiveProperty<long> CurrentHp = new ReactiveProperty<long>(100);

        // Only allow when the player is dead
        // ReactiveCommand Resurrect = CurrentHp.Select(hp=> return hp <= 0).ToReactiveCommand();
        int canExecuteCalled = 0;
        ReactiveCommand Resurrect = CurrentHp.Select(hp=> { canExecuteCalled++; return hp <= 0; }).ToReactiveCommand();
        Resurrect.Subscribe(_ => CurrentHp.Value = 100); // 1

        // Act
        CurrentHp.Value -= 10; // 2
        CurrentHp.Value -= 10; // 3
        CurrentHp.Value -= 10; // 4

        // Assert
        Assert.AreEqual(70, CurrentHp.Value);
        Assert.AreEqual(4, canExecuteCalled, "canExecuteCalled");

        // Act
        Resurrect.Execute();

        // Assert
        Assert.AreEqual(70, CurrentHp.Value);
        Assert.AreEqual(4, canExecuteCalled, "canExecuteCalled");

        // Act
        CurrentHp.Value = 0; // 5
        Resurrect.Execute(); // 6

        // Assert
        Assert.AreEqual(100, CurrentHp.Value);
        Assert.AreEqual(6, canExecuteCalled, "canExecuteCalled");
    }
}