public function ContextTest::testGetContextValue in Drupal 8

Same name and namespace in other branches

1. 9 core/tests/Drupal/Tests/Component/Plugin/Context/ContextTest.php \Drupal\Tests\Component\Plugin\Context\ContextTest::testGetContextValue()

@covers ::getContextValue @dataProvider providerGetContextValue

File

core/tests/Drupal/Tests/Component/Plugin/Context/ContextTest.php, line 29

Class

ContextTest

@coversDefaultClass \Drupal\Component\Plugin\Context\Context @group Plugin

Namespace

Drupal\Tests\Component\Plugin\Context

Code

public function testGetContextValue($expected, $context_value, $is_required, $data_type) {

  // Mock a Context object.
  $mock_context = $this
    ->getMockBuilder('Drupal\\Component\\Plugin\\Context\\Context')
    ->disableOriginalConstructor()
    ->setMethods([
    'getContextDefinition',
  ])
    ->getMock();

  // If the context value exists, getContextValue() behaves like a normal
  // getter.
  if ($context_value) {

    // Set visibility of contextValue.
    $ref_context_value = new \ReflectionProperty($mock_context, 'contextValue');
    $ref_context_value
      ->setAccessible(TRUE);

    // Set contextValue to a testable state.
    $ref_context_value
      ->setValue($mock_context, $context_value);

    // Exercise getContextValue().
    $this
      ->assertEquals($context_value, $mock_context
      ->getContextValue());
  }
  else {

    // Create a mock definition.
    $mock_definition = $this
      ->getMockBuilder('Drupal\\Component\\Plugin\\Context\\ContextDefinitionInterface')
      ->setMethods([
      'isRequired',
      'getDataType',
    ])
      ->getMockForAbstractClass();

    // Set expectation for isRequired().
    $mock_definition
      ->expects($this
      ->once())
      ->method('isRequired')
      ->willReturn($is_required);

    // Set expectation for getDataType().
    $mock_definition
      ->expects($this
      ->exactly($is_required ? 1 : 0))
      ->method('getDataType')
      ->willReturn($data_type);

    // Set expectation for getContextDefinition().
    $mock_context
      ->expects($this
      ->once())
      ->method('getContextDefinition')
      ->willReturn($mock_definition);

    // Set expectation for exception.
    if ($is_required) {
      $this
        ->expectException('Drupal\\Component\\Plugin\\Exception\\ContextException');
      $this
        ->expectExceptionMessage(sprintf("The %s context is required and not present.", $data_type));
    }

    // Exercise getContextValue().
    $this
      ->assertEquals($context_value, $mock_context
      ->getContextValue());
  }
}