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[No Audio]

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So I can actually replace

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these two matcher expressions. So just

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to take a review in the assert that method here,

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we can see that it takes the actual collection

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we're going to inspect and then we're passing in

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a matcher and this matches contained in any order,

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which in turn also takes a series of matches and

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evaluates each matcher and ensures that they both

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evaluate to true, but they can evaluate to true in any

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order. So what I've used here in this expression is

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I've used the equal to matcher and what equal to does

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if we click into this, you can see it delegates

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is equal equal to method and when it evaluates the

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matcher which is basically this matches method here,

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if we drill into this our equal method, this is the

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actual logic of that matcher there, which pretty much

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is either, comparing the actual and the expected

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objects by an array comparison if there happens to be

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arrays. But the more likely cases are actually objects.

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And you can see here it's

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physically just invoking this .equals method.

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So the standard equals method from java.lang.object.

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So to go back out to where before, we now

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know that the equalTo matcher is basically going to

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use a Java equals comparison with this object here and

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evaluate it against objects in this set of

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objects here and the same thing for this one too.