1
00:00:00,000 --> 00:00:02,290
[No Audio]

2
00:00:02,290 --> 00:00:04,628
So the test now with Hamcrest, it's getting better.

3
00:00:04,628 --> 00:00:05,708
It's looking good.

4
00:00:05,708 --> 00:00:09,226
However, it's still not perfect and it can be improved.

5
00:00:09,226 --> 00:00:10,892
And the reason is because here

6
00:00:10,892 --> 00:00:13,834
we're actually invoking a production method.

7
00:00:13,834 --> 00:00:16,004
As we know, whenever we invoke methods which

8
00:00:16,004 --> 00:00:18,958
we've created, then there's scope for bugs.

9
00:00:18,958 --> 00:00:20,996
And not only that as well, you're losing that kind

10
00:00:20,996 --> 00:00:24,046
of scientific quality which you have in unit tests.

11
00:00:24,046 --> 00:00:25,566
We just involve one thing, which is the

12
00:00:25,568 --> 00:00:28,280
method you're testing and change different parts around

13
00:00:28,280 --> 00:00:30,164
it and observe what the effect is.

14
00:00:30,164 --> 00:00:32,780
If you have multiple methods from the same thing.

15
00:00:32,780 --> 00:00:34,424
So multiple methods from the production class

16
00:00:34,424 --> 00:00:36,104
which is being tested, then you've got

17
00:00:36,104 --> 00:00:37,628
extra things that can go wrong.

18
00:00:37,628 --> 00:00:40,124
So you don't have this kind of scientific quality.

19
00:00:40,124 --> 00:00:42,476
And you've kind of sacrificed that just for the sake of

20
00:00:42,476 --> 00:00:44,883
convenience, which is not a good road to go down.

21
00:00:44,883 --> 00:00:48,800
So rather than rely on the logic of create

22
00:00:48,800 --> 00:00:51,233
RegularUse, when we're constructing the objects

23
00:00:51,233 --> 00:00:54,358
that it's going to do its expectations against, instead

24
00:00:54,358 --> 00:00:56,442
of doing that, we can do a different thing and we

25
00:00:56,456 --> 00:00:59,424
can compose properties that we're expecting.

26
00:00:59,424 --> 00:01:01,611
And we'll see how to do that in the next video.