function 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

Code

public function testGetContextValue($expected, $context_value, $is_required, $data_type) {
    // Mock a Context object.
    $mock_context = $this->getMockBuilder('Drupal\\Component\\Plugin\\Context\\Context')
        ->disableOriginalConstructor()
        ->onlyMethods([
        'getContextDefinition',
    ])
        ->getMock();
    // If the context value exists, getContextValue() behaves like a normal
    // getter.
    if ($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')
            ->onlyMethods([
            '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());
    }
}