Duplicate code is one of the most pungent code smells. A rule that is often used is to re-structure code once it is duplicated in three or more places.
Common duplication problems, and corresponding solutions are:
Complex classes like MapperTest often do a lot of different things. To break such a class down, we need to identify a cohesive component within that class. A common approach to find such a component is to look for fields/methods that share the same prefixes, or suffixes. You can also have a look at the cohesion graph to spot any un-connected, or weakly-connected components.
Once you have determined the fields that belong together, you can apply the Extract Class refactoring. If the component makes sense as a sub-class, Extract Subclass is also a candidate, and is often faster.
While breaking up the class, it is a good idea to analyze how other classes use MapperTest, and based on these observations, apply Extract Interface, too.
| 1 | <?php |
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| 28 | class MapperTest extends LanguageAwareTestCase |
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| 29 | { |
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| 30 | /** |
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| 31 | * Value converter registry mock. |
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| 32 | * |
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| 33 | * @var \eZ\Publish\Core\Persistence\Legacy\Content\FieldValue\ConverterRegistry |
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| 34 | */ |
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| 35 | protected $valueConverterRegistryMock; |
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| 36 | |||
| 37 | /** |
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| 38 | * @covers \eZ\Publish\Core\Persistence\Legacy\Content\Mapper::__construct |
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| 39 | */ |
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| 40 | public function testCtor() |
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| 52 | |||
| 53 | /** |
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| 54 | * Returns a eZ\Publish\SPI\Persistence\Content\CreateStruct fixture. |
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| 55 | * |
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| 56 | * @return \eZ\Publish\SPI\Persistence\Content\CreateStruct |
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| 57 | */ |
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| 58 | protected function getCreateStructFixture() |
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| 82 | |||
| 83 | /** |
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| 84 | * @covers \eZ\Publish\Core\Persistence\Legacy\Content\Mapper::createVersionInfoForContent |
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| 85 | */ |
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| 86 | public function testCreateVersionInfoForContent() |
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| 113 | |||
| 114 | /** |
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| 115 | * Returns a Content fixture. |
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| 116 | * |
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| 117 | * @return Content |
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| 118 | */ |
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| 119 | protected function getFullContentFixture() |
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| 142 | |||
| 143 | /** |
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| 144 | * @covers \eZ\Publish\Core\Persistence\Legacy\Content\Mapper::convertToStorageValue |
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| 145 | * @covers \eZ\Publish\Core\Persistence\Legacy\Content\StorageFieldValue |
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| 146 | */ |
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| 147 | public function testConvertToStorageValue() |
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| 177 | |||
| 178 | /** |
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| 179 | * @covers \eZ\Publish\Core\Persistence\Legacy\Content\Mapper::extractContentFromRows |
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| 180 | * @covers \eZ\Publish\Core\Persistence\Legacy\Content\Mapper::extractFieldFromRow |
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| 181 | * @covers \eZ\Publish\Core\Persistence\Legacy\Content\Mapper::extractFieldValueFromRow |
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| 182 | * @covers \eZ\Publish\Core\Persistence\Legacy\Content\StorageFieldValue |
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| 183 | */ |
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| 184 | public function testExtractContentFromRows() |
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| 227 | |||
| 228 | /** |
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| 229 | * @covers \eZ\Publish\Core\Persistence\Legacy\Content\Mapper::extractContentFromRows |
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| 230 | */ |
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| 231 | public function testExtractContentFromRowsMultipleVersions() |
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| 277 | |||
| 278 | /** |
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| 279 | * @covers \eZ\Publish\Core\Persistence\Legacy\Content\Mapper::createCreateStructFromContent |
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| 280 | */ |
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| 281 | public function testCreateCreateStructFromContent() |
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| 304 | |||
| 305 | /** |
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| 306 | * @covers \eZ\Publish\Core\Persistence\Legacy\Content\Mapper::createCreateStructFromContent |
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| 307 | * @depends testCreateCreateStructFromContent |
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| 308 | */ |
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| 309 | public function testCreateCreateStructFromContentBasicProperties($data) |
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| 325 | |||
| 326 | /** |
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| 327 | * @covers \eZ\Publish\Core\Persistence\Legacy\Content\Mapper::createCreateStructFromContent |
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| 328 | * @depends testCreateCreateStructFromContent |
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| 329 | */ |
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| 330 | public function testCreateCreateStructFromContentParentLocationsEmpty($data) |
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| 337 | |||
| 338 | /** |
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| 339 | * @covers \eZ\Publish\Core\Persistence\Legacy\Content\Mapper::createCreateStructFromContent |
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| 340 | * @depends testCreateCreateStructFromContent |
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| 341 | */ |
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| 342 | public function testCreateCreateStructFromContentFieldCount($data) |
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| 349 | |||
| 350 | /** |
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| 351 | * @covers \eZ\Publish\Core\Persistence\Legacy\Content\Mapper::createCreateStructFromContent |
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| 352 | * @depends testCreateCreateStructFromContent |
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| 353 | */ |
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| 354 | public function testCreateCreateStructFromContentFieldsNoId($data) |
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| 360 | |||
| 361 | public function testExtractRelationsFromRows() |
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| 374 | |||
| 375 | /** |
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| 376 | * @covers \eZ\Publish\Core\Persistence\Legacy\Content\Mapper::createCreateStructFromContent |
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| 377 | */ |
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| 378 | public function testCreateCreateStructFromContentWithPreserveOriginalLanguage() |
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| 397 | |||
| 398 | /** |
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| 399 | * @covers \eZ\Publish\Core\Persistence\Legacy\Content\Mapper::extractContentInfoFromRow |
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| 400 | * @dataProvider extractContentInfoFromRowProvider |
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| 401 | * |
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| 402 | * @param array $fixtures |
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| 403 | * @param string $prefix |
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| 404 | */ |
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| 405 | public function testExtractContentInfoFromRow(array $fixtures, $prefix) |
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| 414 | |||
| 415 | /** |
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| 416 | * Returns test data for {@link testExtractContentInfoFromRow()}. |
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| 417 | * |
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| 418 | * @return array |
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| 419 | */ |
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| 420 | public function extractContentInfoFromRowProvider() |
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| 436 | |||
| 437 | /** |
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| 438 | * @covers \eZ\Publish\Core\Persistence\Legacy\Content\Mapper::createRelationFromCreateStruct |
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| 439 | */ |
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| 440 | public function testCreateRelationFromCreateStruct() |
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| 452 | |||
| 453 | /** |
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| 454 | * Returns test data for {@link testExtractVersionInfoFromRow()}. |
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| 455 | * |
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| 456 | * @return array |
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| 457 | */ |
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| 458 | public function extractVersionInfoFromRowProvider() |
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| 478 | |||
| 479 | /** |
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| 480 | * Returns a fixture of database rows for content extraction. |
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| 481 | * |
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| 482 | * Fixture is stored in _fixtures/extract_content_from_rows.php |
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| 483 | * |
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| 484 | * @return array |
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| 485 | */ |
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| 486 | protected function getContentExtractFixture() |
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| 490 | |||
| 491 | /** |
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| 492 | * Returns a fixture of database rows for content names extraction. |
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| 493 | * |
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| 494 | * Fixture is stored in _fixtures/extract_names_from_rows.php |
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| 495 | * |
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| 496 | * @return array |
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| 497 | */ |
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| 498 | protected function getNamesExtractFixture() |
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| 502 | |||
| 503 | /** |
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| 504 | * Returns a reference result for content extraction. |
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| 505 | * |
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| 506 | * Fixture is stored in _fixtures/extract_content_from_rows_result.php |
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| 507 | * |
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| 508 | * @return Content |
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| 509 | */ |
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| 510 | protected function getContentExtractReference() |
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| 514 | |||
| 515 | /** |
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| 516 | * Returns a fixture for mapping multiple versions of a content object. |
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| 517 | * |
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| 518 | * @return string[][] |
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| 519 | */ |
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| 520 | protected function getMultipleVersionsExtractFixture() |
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| 524 | |||
| 525 | /** |
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| 526 | * Returns a fixture of database rows for content names extraction across multiple versions. |
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| 527 | * |
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| 528 | * Fixture is stored in _fixtures/extract_names_from_rows_multiple_versions.php |
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| 529 | * |
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| 530 | * @return array |
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| 531 | */ |
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| 532 | protected function getMultipleVersionsNamesExtractFixture() |
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| 536 | |||
| 537 | /** |
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| 538 | * Returns a fixture of database rows for relations extraction. |
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| 539 | * |
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| 540 | * Fixture is stored in _fixtures/relations.php |
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| 541 | * |
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| 542 | * @return array |
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| 543 | */ |
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| 544 | protected function getRelationExtractFixture() |
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| 548 | |||
| 549 | /** |
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| 550 | * Returns a reference result for content extraction. |
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| 551 | * |
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| 552 | * Fixture is stored in _fixtures/relations_results.php |
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| 553 | * |
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| 554 | * @return Content |
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| 555 | */ |
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| 556 | protected function getRelationExtractReference() |
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| 560 | |||
| 561 | /** |
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| 562 | * Returns a Mapper. |
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| 563 | * |
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| 564 | * @return \eZ\Publish\Core\Persistence\Legacy\Content\Mapper |
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| 565 | */ |
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| 566 | protected function getMapper($valueConverter = null) |
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| 573 | |||
| 574 | /** |
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| 575 | * Returns a FieldValue converter registry mock. |
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| 576 | * |
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| 577 | * @return \eZ\Publish\Core\Persistence\Legacy\Content\FieldValue\ConverterRegistry |
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| 578 | */ |
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| 579 | protected function getValueConverterRegistryMock() |
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| 591 | |||
| 592 | /** |
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| 593 | * Returns a eZ\Publish\SPI\Persistence\Content\CreateStruct fixture. |
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| 594 | * |
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| 595 | * @return \eZ\Publish\SPI\Persistence\Content\Relation\CreateStruct |
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| 596 | */ |
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| 597 | View Code Duplication | protected function getRelationCreateStructFixture() |
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| 609 | |||
| 610 | /** |
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| 611 | * Returns a language handler mock. |
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| 612 | * |
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| 613 | * @return \eZ\Publish\Core\Persistence\Legacy\Content\Language\Handler |
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| 614 | */ |
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| 615 | protected function getLanguageHandler() |
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| 666 | } |
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| 667 |
Our type inference engine has found an assignment to a property that is incompatible with the declared type of that property.
Either this assignment is in error or the assigned type should be added to the documentation/type hint for that property..