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All language subtitles for 015 Movie Store Store – Part 4 (Task 2 & 3)_en

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Would you like to inspect the original subtitles? These are the user uploaded subtitles that are being translated: 1 00:00:00,330 --> 00:00:03,030 For this solution, we're gonna cover tasks two and three. 2 00:00:11,860 --> 00:00:16,870 Going back to the third test case, we need to write a unit test that expects cell movie to throw an 3 00:00:16,870 --> 00:00:19,180 exception if a movie has already been rented. 4 00:00:22,310 --> 00:00:25,340 So here I can write a unit test that expects an illegal state exception. 5 00:00:26,360 --> 00:00:27,830 Test expected. 6 00:00:29,390 --> 00:00:31,970 And it expects an illegal state exception. 7 00:00:35,300 --> 00:00:36,200 DECLASSE. 8 00:00:43,520 --> 00:00:46,400 The unit test is called Movie Night in Stock. 9 00:00:49,120 --> 00:00:50,920 First, I'll rent The Godfather. 10 00:01:02,820 --> 00:01:04,800 And then I'll try to sell The Godfather. 11 00:01:09,630 --> 00:01:10,980 If I run the test now. 12 00:01:14,050 --> 00:01:18,820 It fails, it's expecting the test to throw in a legal state exception, but it isn't. 13 00:01:20,120 --> 00:01:24,710 And so now we need to make the test pass by throwing an illegal -- exception from sell movie. 14 00:01:35,750 --> 00:01:37,670 If the movie is already rented. 15 00:02:02,200 --> 00:02:03,940 Throw an illegal STD exception. 16 00:02:19,520 --> 00:02:21,830 Rerun the test and perfect. 17 00:02:24,170 --> 00:02:30,140 And just have a look at how clean and elegant the code is, when you write tests, before you write 18 00:02:30,140 --> 00:02:33,560 code, you're being forced to write code that is easy to test. 19 00:02:34,100 --> 00:02:38,030 At the same time, code that is easy to test won't get any bugs. 20 00:02:40,400 --> 00:02:42,800 And now what I'm going to do is run every single test. 21 00:02:46,760 --> 00:02:51,470 They all pass, which means the code inside Staudt Java doesn't have any bugs. 22 00:02:52,580 --> 00:02:57,380 And before we wrap up, just I want you to really appreciate how polished our code is. 23 00:03:01,850 --> 00:03:08,270 Compared the old code with the new code in the old code, the functions were massive, this function 24 00:03:08,270 --> 00:03:09,940 here is impossible to test. 25 00:03:10,340 --> 00:03:13,430 So if you get a bug here, it's going to be really hard to fix. 26 00:03:14,000 --> 00:03:21,290 In general, this is not good coding, but with unit testing, our code is a lot cleaner and immune 27 00:03:21,290 --> 00:03:22,070 to bugs. 2514