class ArgumentsResolverTest

class ArgumentsResolverTest extends TestCase {
  
  /**
   * {@inheritdoc}
   */
  protected function setUp() : void {
    parent::setUp();
  }
  
  /**
   * Tests the getArgument() method.
   *
   * @dataProvider providerTestGetArgument
   */
  public function testGetArgument($callable, $scalars, $objects, $wildcards, $expected) : void {
    $arguments = (new ArgumentsResolver($scalars, $objects, $wildcards))->getArguments($callable);
    $this->assertSame($expected, $arguments);
  }
  
  /**
   * Provides test data to testGetArgument().
   */
  public static function providerTestGetArgument() {
    $data = [];
    // Test an optional parameter with no provided value.
    $data[] = [
      function ($foo = 'foo') {
      },
      [],
      [],
      [],
      [
        'foo',
      ],
    ];
    // Test an optional parameter with a provided value.
    $data[] = [
      function ($foo = 'foo') {
      },
      [
        'foo' => 'bar',
      ],
      [],
      [],
      [
        'bar',
      ],
    ];
    // Test with a provided value.
    $data[] = [
      function ($foo) {
      },
      [
        'foo' => 'bar',
      ],
      [],
      [],
      [
        'bar',
      ],
    ];
    // Test with an explicitly NULL value.
    $data[] = [
      function ($foo) {
      },
      [],
      [
        'foo' => NULL,
      ],
      [],
      [
        NULL,
      ],
    ];
    // Test with a raw value that overrides the provided upcast value, since
    // it is not type hinted.
    $scalars = [
      'foo' => 'baz',
    ];
    $objects = [
      'foo' => new \stdClass(),
    ];
    $data[] = [
      function ($foo) {
      },
      $scalars,
      $objects,
      [],
      [
        'baz',
      ],
    ];
    // Test a static method string.
    $data[] = [
      TestStaticMethodClass::class . "::access",
      [],
      [
        'foo' => NULL,
      ],
      [],
      [
        NULL,
      ],
    ];
    return $data;
  }
  
  /**
   * Tests getArgument() with an object.
   */
  public function testGetArgumentObject() : void {
    $callable = function (\stdClass $object) {
    };
    $object = new \stdClass();
    $arguments = (new ArgumentsResolver([], [
      'object' => $object,
    ], []))->getArguments($callable);
    $this->assertSame([
      $object,
    ], $arguments);
  }
  
  /**
   * Tests getArgument() with a wildcard object for a parameter with a custom name.
   */
  public function testGetWildcardArgument() : void {
    $callable = function (\stdClass $custom_name) {
    };
    $object = new \stdClass();
    $arguments = (new ArgumentsResolver([], [], [
      $object,
    ]))->getArguments($callable);
    $this->assertSame([
      $object,
    ], $arguments);
  }
  
  /**
   * Tests getArgument() with a Route, Request, and Account object.
   */
  public function testGetArgumentOrder() : void {
    $a1 = $this->getMockBuilder('\\Drupal\\Tests\\Component\\Utility\\Test1Interface')
      ->getMock();
    $a2 = $this->getMockBuilder('\\Drupal\\Tests\\Component\\Utility\\TestClass')
      ->getMock();
    $a3 = $this->getMockBuilder('\\Drupal\\Tests\\Component\\Utility\\Test2Interface')
      ->getMock();
    $objects = [
      't1' => $a1,
      'tc' => $a2,
    ];
    $wildcards = [
      $a3,
    ];
    $resolver = new ArgumentsResolver([], $objects, $wildcards);
    $callable = function (Test1Interface $t1, TestClass $tc, Test2Interface $t2) {
    };
    $arguments = $resolver->getArguments($callable);
    $this->assertSame([
      $a1,
      $a2,
      $a3,
    ], $arguments);
    // Test again, but with the arguments in a different order.
    $callable = function (Test2Interface $t2, TestClass $tc, Test1Interface $t1) {
    };
    $arguments = $resolver->getArguments($callable);
    $this->assertSame([
      $a3,
      $a2,
      $a1,
    ], $arguments);
  }
  
  /**
   * Tests getArgument() with a wildcard parameter with no type hint.
   *
   * Without the type hint, the wildcard object will not be passed to the callable.
   */
  public function testGetWildcardArgumentNoTypeHint() : void {
    $a = $this->getMockBuilder('\\Drupal\\Tests\\Component\\Utility\\Test1Interface')
      ->getMock();
    $wildcards = [
      $a,
    ];
    $resolver = new ArgumentsResolver([], [], $wildcards);
    $callable = function ($route) {
    };
    $this->expectException(\RuntimeException::class);
    $this->expectExceptionMessage('requires a value for the "$route" argument.');
    $resolver->getArguments($callable);
  }
  
  /**
   * Tests getArgument() with a named parameter with no type hint and a value.
   *
   * Without the type hint, passing a value to a named parameter will still
   * receive the provided value.
   */
  public function testGetArgumentRouteNoTypeHintAndValue() : void {
    $scalars = [
      'route' => 'foo',
    ];
    $resolver = new ArgumentsResolver($scalars, [], []);
    $callable = function ($route) {
    };
    $arguments = $resolver->getArguments($callable);
    $this->assertSame([
      'foo',
    ], $arguments);
  }
  
  /**
   * Tests handleUnresolvedArgument() for a scalar argument.
   */
  public function testHandleNotUpcastedArgument() : void {
    $objects = [
      'foo' => 'bar',
    ];
    $scalars = [
      'foo' => 'baz',
    ];
    $resolver = new ArgumentsResolver($scalars, $objects, []);
    $callable = function (\stdClass $foo) {
    };
    $this->expectException(\RuntimeException::class);
    $this->expectExceptionMessage('requires a value for the "$foo" argument.');
    $resolver->getArguments($callable);
  }
  
  /**
   * Tests handleUnresolvedArgument() for missing arguments.
   *
   * @dataProvider providerTestHandleUnresolvedArgument
   */
  public function testHandleUnresolvedArgument($callable) : void {
    $resolver = new ArgumentsResolver([], [], []);
    $this->expectException(\RuntimeException::class);
    $this->expectExceptionMessage('requires a value for the "$foo" argument.');
    $resolver->getArguments($callable);
  }
  
  /**
   * Provides test data to testHandleUnresolvedArgument().
   */
  public static function providerTestHandleUnresolvedArgument() {
    $data = [];
    $data[] = [
      function ($foo) {
      },
    ];
    $data[] = [
      [
        new TestClass(),
        'access',
      ],
    ];
    $data[] = [
      'Drupal\\Tests\\Component\\Utility\\test_access_arguments_resolver_access',
    ];
    return $data;
  }

}