Valinor/tests/Unit/Mapper/Tree/Message/NodeMessageTest.php
Romain Canon 90dc586018
feat!: make mapper more strict and allow flexible mode
The mapper is now more type-sensitive and will fail in the following
situations:

- When a value does not match exactly the awaited scalar type, for
  instance a string `"42"` given to a node that awaits an integer.

- When unnecessary array keys are present, for instance mapping an array
  `['foo' => …, 'bar' => …, 'baz' => …]` to an object that needs only
   `foo` and `bar`.

- When permissive types like `mixed` or `object` are encountered.

These limitations can be bypassed by enabling the flexible mode:

```php
(new \CuyZ\Valinor\MapperBuilder())
    ->flexible()
    ->mapper();
    ->map('array{foo: int, bar: bool}', [
        'foo' => '42', // Will be cast from `string` to `int`
        'bar' => 'true', // Will be cast from `string` to `bool`
        'baz' => '…', // Will be ignored
    ]);
```

When using this library for a provider application — for instance an API
endpoint that can be called with a JSON payload — it is recommended to
use the strict mode. This ensures that the consumers of the API provide
the exact awaited data structure, and prevents unknown values to be
passed.

When using this library as a consumer of an external source, it can make
sense to enable the flexible mode. This allows for instance to convert
string numeric values to integers or to ignore data that is present in
the source but not needed in the application.

---

All these changes led to a new check that runs on all registered object
constructors. If a collision is found between several constructors that
have the same signature (the same parameter names), an exception will be
thrown.

```php
final class SomeClass
{
    public static function constructorA(string $foo, string $bar): self
    {
        // …
    }

    public static function constructorB(string $foo, string $bar): self
    {
        // …
    }
}

(new \CuyZ\Valinor\MapperBuilder())
    ->registerConstructor(
        SomeClass::constructorA(...),
        SomeClass::constructorB(...),
    )
    ->mapper();
    ->map(SomeClass::class, [
        'foo' => 'foo',
        'bar' => 'bar',
    ]);

// Exception: A collision was detected […]
```
2022-06-23 10:30:36 +02:00

119 lines
4.5 KiB
PHP

<?php
declare(strict_types=1);
namespace CuyZ\Valinor\Tests\Unit\Mapper\Tree\Message;
use CuyZ\Valinor\Mapper\Tree\Message\Message;
use CuyZ\Valinor\Mapper\Tree\Message\NodeMessage;
use CuyZ\Valinor\Tests\Fake\Definition\FakeAttributes;
use CuyZ\Valinor\Tests\Fake\Mapper\FakeShell;
use CuyZ\Valinor\Tests\Fake\Mapper\Tree\Message\FakeErrorMessage;
use CuyZ\Valinor\Tests\Fake\Mapper\Tree\Message\FakeMessage;
use CuyZ\Valinor\Tests\Fake\Mapper\Tree\Message\FakeNodeMessage;
use CuyZ\Valinor\Tests\Fake\Mapper\Tree\Message\FakeTranslatableMessage;
use CuyZ\Valinor\Tests\Fake\Mapper\Tree\Message\Formatter\FakeMessageFormatter;
use CuyZ\Valinor\Tests\Fake\Type\FakeType;
use PHPUnit\Framework\TestCase;
final class NodeMessageTest extends TestCase
{
public function test_node_properties_can_be_accessed(): void
{
$originalMessage = new FakeMessage();
$type = FakeType::permissive();
$attributes = new FakeAttributes();
$shell = FakeShell::any()->child('foo', $type, $attributes)->withValue('some value');
$message = new NodeMessage($shell, $originalMessage);
self::assertSame('foo', $message->name());
self::assertSame('foo', $message->path());
self::assertSame('some value', $message->value());
self::assertSame($type, $message->type());
self::assertSame($attributes, $message->attributes());
self::assertSame($originalMessage, $message->originalMessage());
}
public function test_message_is_error_if_original_message_is_throwable(): void
{
$originalMessage = new FakeErrorMessage();
$message = new NodeMessage(FakeShell::any(), $originalMessage);
self::assertTrue($message->isError());
self::assertSame('1652883436', $message->code());
self::assertSame('some error message', $message->body());
}
public function test_parameters_are_replaced_in_body(): void
{
$originalMessage = new FakeTranslatableMessage('some original message', ['some_parameter' => 'some parameter value']);
$type = FakeType::permissive();
$shell = FakeShell::any()->child('foo', $type)->withValue('some value');
$message = new NodeMessage($shell, $originalMessage);
$message = $message->withBody('{message_code} / {node_name} / {node_path} / {node_type} / {original_value} / {original_message} / {some_parameter}');
self::assertSame("1652902453 / foo / foo / `$type` / 'some value' / some original message (toString) / some parameter value", (string)$message);
}
public function test_replaces_correct_original_message_if_throwable(): void
{
$message = new NodeMessage(FakeShell::any(), new FakeErrorMessage('some error message'));
$message = $message->withBody('original: {original_message}');
self::assertSame('original: some error message', (string)$message);
}
public function test_format_message_uses_formatter_to_replace_content(): void
{
$originalMessage = new FakeMessage('some message');
$message = new NodeMessage(FakeShell::any(), $originalMessage);
$formattedMessage = (new FakeMessageFormatter())->format($message);
self::assertNotSame($message, $formattedMessage);
self::assertSame('formatted: some message', (string)$formattedMessage);
}
public function test_custom_body_returns_clone(): void
{
$messageA = FakeNodeMessage::any();
$messageB = $messageA->withBody('some other message');
self::assertNotSame($messageA, $messageB);
}
public function test_custom_locale_returns_clone(): void
{
$messageA = FakeNodeMessage::any();
$messageB = $messageA->withLocale('fr');
self::assertNotSame($messageA, $messageB);
}
public function test_custom_locale_is_used(): void
{
$originalMessage = new FakeTranslatableMessage('un message: {value, spellout}', ['value' => '42']);
$message = new NodeMessage(FakeShell::any(), $originalMessage);
$message = $message->withLocale('fr');
self::assertSame('un message: quarante-deux', (string)$message);
}
public function test_message_with_no_code_returns_unknown(): void
{
$originalMessage = new class () implements Message {
public function __toString(): string
{
return 'some message';
}
};
$message = new NodeMessage(FakeShell::any(), $originalMessage);
self::assertSame('unknown', $message->code());
}
}