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fix: clarify note about reverting Countdown function #858

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fix: clarify note about reverting Countdown function #858

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15 changes: 14 additions & 1 deletion mocking.md
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Original file line number Diff line number Diff line change
Expand Up @@ -379,7 +379,20 @@ func Countdown(out io.Writer, sleeper Sleeper) {

If you run your tests they should still be passing even though the implementation is wrong.

Let's use spying again with a new test to check the order of operations is correct.
> Note: Don't forget to revert the `Countdown` function to its correct implementation afterwards to avoid failing tests in subsequent sections. Restore it back to:

```go
func Countdown(out io.Writer, sleeper Sleeper) {
for i := countdownStart; i > 0; i-- {
fmt.Fprintln(out, i)
sleeper.Sleep()
}

fmt.Fprint(out, finalWord)
}
```

Now, let's use spying again with a new test to check the order of operations is correct.

We have two different dependencies and we want to record all of their operations into one list. So we'll create _one spy for them both_.

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