Moving `let!` directives closer to their uses
Moving `let!` directives closer to their uses

This is a minor speed increase, as the three `let!` statements are not
fired before each and every `it` block in this spec file.

Before:

```console
Finished in 0.71341 seconds (files took 7.8 seconds to load)
```

After:

```console
Finished in 0.52115 seconds (files took 7.16 seconds to load)
```

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