[5.1] Testing a form with an array of checkboxes fails

I want to test the "create" part of my users resource controller.

The associated view has a form with a text field named "name" and an array of checkboxes named "options[]".

My problem is I can't figure out how to populate the "options[]" field using the Laravel/Symfony crawler.

My controller method:

// route: user.create
public function create()
{
    dd(\Input::all());
}

My view:

<label for="name">Name</label>
<input name="name" type="text" value="" id="name" />

<label for="options1">
    <input id="options1" name="options[]" type="checkbox" value="1" />
    Option 1
</label>

<label for="options2">
    <input id="options2" name="options[]" type="checkbox" value="2" />
    Bar
</label>

<!-- ... and so on until option 10 ... -->

If I run this test

public function testCreateUser()
{
    $input = [
        'name' => 'Foo',
        'options => range(1, 10)
    ];

    $this->visit('user.create')
    ->submitForm('Create user', $input)
    ->seePageIs('user.show');
}

I get the error

1) UsersControllerTest::testCreateUser
InvalidArgumentException: Input "options[]" cannot take "1" as a value (possible values: 10).
./vendor/symfony/dom-crawler/Field/ChoiceFormField.php:144

So it seems the only valid value is 10. If I try with that value

public function testCreateUser()
{
    $input = [
        'name' => 'Foo',
        'options => 10
    ];

    $this->visit('user.create')
    ->submitForm('Create user', $input)
    ->seePageIs('user.show');
}

I get the error

1) UsersControllerTest::testCreateUser
InvalidArgumentException: Cannot set value on a compound field "options".
./vendor/symfony/dom-crawler/FormFieldRegistry.php:135

If I try again with

public function testCreateUser()
{
    $input = [
        'name' => 'Foo',
        'options => [10]
    ];

    $this->visit('user.create')
    ->submitForm('Create user', $input)
    ->seePageIs('user.show');
}

The submitForm() test is passed but the input received by the controller is

[
    "name" => "Foo",
    "options[0]" => "10"
]

Instead of the expected one

[
    "name" => "Foo",
    "options" => ["10"]
]

So my questions are...

why does symfony/dom-crawler/Field/ChoiceFormField only let me use the value 10 and not any others?

how can I build my test for my controller to receive the expected input?