public void Should_Add_Floor()
    {
        //Arrange
        string floorName = "First Floor";
        var    floor     = new FloorInfo {
            Name = floorName
        };
        var subject = new FloorManager();

        //Act
        subject.Add(floor);
        //Assert - FluentAssertions
        subject.Floors.Should().HaveCount(1);
    }
    public void Should_FindFloorByName()
    {
        //Arrange
        string expected = "First Floor";
        var    floor    = new FloorInfo {
            Name = expected
        };
        var subject = new FloorManager();

        subject.Add(floor);
        //Act
        FloorInfo actual = subject.FindFloorByName(expected);

        //Assert - FluentAssertions
        actual.Should().NotBeNull();
        actual.Name.Should().Be(expected);
    }