class ProcessFieldTest

class ProcessFieldTest extends MigrateTestCase {
    
    /**
     * {@inheritdoc}
     */
    protected function setUp() {
        $this->cckFieldManager = $this->prophesize(MigrateCckFieldPluginManagerInterface::class);
        $this->fieldManager = $this->prophesize(MigrateFieldPluginManagerInterface::class);
        $this->fieldPlugin = $this->prophesize(MigrateFieldInterface::class);
        $this->migrateExecutable = $this->prophesize(MigrateExecutable::class);
        $this->migration = $this->prophesize(MigrationInterface::class);
        $this->row = $this->prophesize(Row::class);
        $this->fieldManager
            ->getPluginIdFromFieldType('foo', [], $this->migration
            ->reveal())
            ->willReturn('foo');
        $this->fieldManager
            ->createInstance('foo', [], $this->migration
            ->reveal())
            ->willReturn($this->fieldPlugin);
        parent::setUp();
    }
    
    /**
     * Tests the transform method.
     *
     * @param string $method
     *   The method to call.
     * @param string $value
     *   The value to process.
     * @param mixed $expected_value
     *   The expected transformed value.
     * @param string $migrate_exception
     *   The MigrateException message to expect.
     * @param bool $plugin_not_found
     *   Whether the field plugin is not found.
     *
     * @covers ::transform
     * @dataProvider providerTestTransform
     */
    public function testTransform($method, $value, $expected_value, $migrate_exception = '', $plugin_not_found = FALSE) {
        if ($method) {
            $this->fieldPlugin
                ->{$method}($this->row
                ->reveal())
                ->willReturn($expected_value);
        }
        $this->plugin = new ProcessField([
            'method' => $method,
        ], $value, [], $this->cckFieldManager
            ->reveal(), $this->fieldManager
            ->reveal(), $this->migration
            ->reveal());
        if ($migrate_exception) {
            $this->expectException(MigrateException::class);
            $this->expectExceptionMessage($migrate_exception);
        }
        if ($plugin_not_found) {
            $exception = new PluginNotFoundException('foo');
            $this->cckFieldManager
                ->getPluginIdFromFieldType()
                ->willThrow($exception);
            $this->fieldManager
                ->getPluginIdFromFieldType()
                ->willThrow($exception);
        }
        $transformed_value = $this->plugin
            ->transform($value, $this->migrateExecutable
            ->reveal(), $this->row
            ->reveal(), 'foo');
        $this->assertSame($transformed_value, $expected_value);
    }
    
    /**
     * Provides data for the transform method test.
     *
     * @return array
     *   - The method to call.
     *   - The value to process.
     *   - The expected transformed value.
     *   - The MigrateException message to expect.
     *   - Whether the field plugin is not found.
     */
    public function providerTestTransform() {
        return [
            // Tests the getFieldType() method.
[
                'method' => 'getFieldType',
                'value' => 'foo',
                'expected_value' => 'bar',
            ],
            // Tests the getFieldFormatterMap() method.
[
                'method' => 'getFieldFormatterMap',
                'value' => 'foo',
                'expected_value' => [
                    'foo' => 'bar',
                ],
            ],
            // Tests the getFieldWidgetMap() method.
[
                'method' => 'getFieldWidgetMap',
                'value' => 'foo',
                'expected_value' => [
                    'foo' => 'bar',
                ],
            ],
            // Tests that an exception is thrown if the value is not a string.
[
                'method' => 'getFieldType',
                'value' => [
                    'foo',
                ],
                'expected_value' => '',
                'migrate_exception' => 'The input value must be a string.',
            ],
            // Tests that an exception is thrown if no method name is provided.
[
                'method' => '',
                'value' => '',
                'expected_value' => '',
                'migrate_exception' => 'You need to specify the name of a method to be called on the Field plugin.',
            ],
            // Tests that NULL is returned if no field plugin is found.
[
                'method' => 'getFieldType',
                'value' => 'foo',
                'expected_value' => NULL,
                'migrate_exception' => '',
                'plugin_not_found' => TRUE,
            ],
        ];
    }

}