Using properties demo

- [Instructor] So, let's go ahead and demonstrate…using the setter to validate content…that is going to be referenced.…So, I'd like to jump to our Actor Test Class,…and what we're going to do is…to create another test for this purpose.…So, I will highlight Test Book Actor,…and let's go ahead, scroll down, and paste it.…

And we'll give this a name like…'Test Formatting on Setter for Book Actor',…and what I will do is change the name of the actor…to 'Johnny Boy' with several spaces right after it.…So, now, because I'm adding those spaces…the test should fail because it's not going to match…our expected value.…

So, let me right-click on Test Formatting on Setter…and Run Selected Test, and it fails just as we expected.…So, to fix this, let's go to our Actor Class…and find our actor name property,…and this is where the power of the setter comes in.…What we're able to do is to add in some logic here,…such as adding a formatted name variable…and the value that we assign on line 24…we're gonna go ahead and check that…and make sure that one - it's not nul…