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Adds documentation for using datasets in higher order tests #82

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Jul 21, 2021
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Adds documentation for using datasets in higher order tests #82

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18 changes: 18 additions & 0 deletions higher-order-tests.md
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Original file line number Diff line number Diff line change
Expand Up @@ -6,6 +6,7 @@ description: Higher Order Tests
# Higher Order Tests

- [Overview](#overview)
- [Working with Datasets](#working-with-datasets)

<a name="overview"></a>
## Overview
Expand Down Expand Up @@ -70,6 +71,23 @@ test('the user has the correct values')
->withTitle('Mr')->toEqual('Mr Nuno Maduro');
```

## Working with Datasets

When working with [datasets](/docs/datasets), Pest allows you to access the dataset values in higher order
tests when using the `expect`, `and` or `tap` methods:

```php
it('validates the user names')
->with('badUsernames')
->expect(fn($name) => ValidateUserName::isValid($name)) // We receive the data as a parameter to `expect`
->toBeFalse();

it('inserts a user in the database')
->with('users')
->tap(fn($name, $email) => User::create(['name' => $name, 'email' => $email])) // You may receive multiple arguments
->assertDatabaseHas('users', 1);
```

---

Next section: [Custom Helpers →](/docs/helpers)