class ConfigEntityTest

class ConfigEntityTest extends BrowserTestBase {
    
    /**
     * The maximum length for the entity storage used in this test.
     */
    const MAX_ID_LENGTH = ConfigEntityStorage::MAX_ID_LENGTH;
    
    /**
     * {@inheritdoc}
     */
    protected static $modules = [
        'config_test',
    ];
    
    /**
     * {@inheritdoc}
     */
    protected $defaultTheme = 'stark';
    
    /**
     * Tests CRUD operations.
     */
    public function testCRUD() : void {
        $default_langcode = \Drupal::languageManager()->getDefaultLanguage()
            ->getId();
        // Verify default properties on a newly created empty entity.
        $storage = \Drupal::entityTypeManager()->getStorage('config_test');
        $empty = $storage->create();
        $this->assertNull($empty->label);
        $this->assertNull($empty->style);
        $this->assertSame($default_langcode, $empty->language()
            ->getId());
        // Verify ConfigEntity properties/methods on the newly created empty entity.
        $this->assertTrue($empty->isNew());
        $this->assertNull($empty->getOriginalId());
        $this->assertSame('config_test', $empty->bundle());
        $this->assertNull($empty->id());
        $this->assertTrue(Uuid::isValid($empty->uuid()));
        $this->assertNull($empty->label());
        $this->assertNull($empty->get('id'));
        $this->assertTrue(Uuid::isValid($empty->get('uuid')));
        $this->assertNull($empty->get('label'));
        $this->assertNull($empty->get('style'));
        $this->assertSame($default_langcode, $empty->language()
            ->getId());
        // Verify Entity properties/methods on the newly created empty entity.
        $this->assertSame('config_test', $empty->getEntityTypeId());
        // The URI can only be checked after saving.
        try {
            $empty->toUrl();
            $this->fail('EntityMalformedException was thrown.');
        } catch (EntityMalformedException $e) {
            // Expected exception; just continue testing.
        }
        // Verify that an empty entity cannot be saved.
        try {
            $empty->save();
            $this->fail('EntityMalformedException was thrown.');
        } catch (EntityMalformedException $e) {
            // Expected exception; just continue testing.
        }
        // Verify that an entity with an empty ID string is considered empty, too.
        $empty_id = $storage->create([
            'id' => '',
        ]);
        $this->assertTrue($empty_id->isNew());
        try {
            $empty_id->save();
            $this->fail('EntityMalformedException was thrown.');
        } catch (EntityMalformedException $e) {
            // Expected exception; just continue testing.
        }
        // Verify properties on a newly created entity.
        $config_test = $storage->create($expected = [
            'id' => $this->randomMachineName(),
            'label' => $this->randomString(),
            'style' => $this->randomMachineName(),
        ]);
        $this->assertNotEquals($empty->uuid(), $config_test->uuid());
        $this->assertSame($expected['label'], $config_test->label);
        $this->assertSame($expected['style'], $config_test->style);
        $this->assertSame($default_langcode, $config_test->language()
            ->getId());
        // Verify methods on the newly created entity.
        $this->assertTrue($config_test->isNew());
        $this->assertSame($expected['id'], $config_test->getOriginalId());
        $this->assertSame($expected['id'], $config_test->id());
        $this->assertTrue(Uuid::isValid($config_test->uuid()));
        $expected['uuid'] = $config_test->uuid();
        $this->assertSame($expected['label'], $config_test->label());
        // Verify that the entity can be saved.
        try {
            $status = $config_test->save();
        } catch (EntityMalformedException $e) {
            $this->fail('EntityMalformedException was not thrown.');
        }
        // The entity path can only be checked after saving.
        $this->assertSame(Url::fromRoute('entity.config_test.edit_form', [
            'config_test' => $expected['id'],
        ])->toString(), $config_test->toUrl()
            ->toString());
        // Verify that the correct status is returned and properties did not change.
        $this->assertSame(SAVED_NEW, $status);
        $this->assertSame($expected['id'], $config_test->id());
        $this->assertSame($expected['uuid'], $config_test->uuid());
        $this->assertSame($expected['label'], $config_test->label());
        $this->assertFalse($config_test->isNew());
        $this->assertSame($expected['id'], $config_test->getOriginalId());
        // Save again, and verify correct status and properties again.
        $status = $config_test->save();
        $this->assertSame(SAVED_UPDATED, $status);
        $this->assertSame($expected['id'], $config_test->id());
        $this->assertSame($expected['uuid'], $config_test->uuid());
        $this->assertSame($expected['label'], $config_test->label());
        $this->assertFalse($config_test->isNew());
        $this->assertSame($expected['id'], $config_test->getOriginalId());
        // Verify that a configuration entity can be saved with an ID of the
        // maximum allowed length, but not longer.
        // Test with a short ID.
        $id_length_config_test = $storage->create([
            'id' => $this->randomMachineName(8),
        ]);
        try {
            $id_length_config_test->save();
        } catch (ConfigEntityIdLengthException $e) {
            $this->fail($e->getMessage());
        }
        // Test with an ID of the maximum allowed length.
        $id_length_config_test = $storage->create([
            'id' => $this->randomMachineName(static::MAX_ID_LENGTH),
        ]);
        try {
            $id_length_config_test->save();
        } catch (ConfigEntityIdLengthException $e) {
            $this->fail($e->getMessage());
        }
        // Test with an ID exceeding the maximum allowed length.
        $id_length_config_test = $storage->create([
            'id' => $this->randomMachineName(static::MAX_ID_LENGTH + 1),
        ]);
        try {
            $status = $id_length_config_test->save();
            $this->fail(new FormattableMarkup("config_test entity with ID length @length exceeding the maximum allowed length of @max saved successfully", [
                '@length' => strlen($id_length_config_test->id()),
                '@max' => static::MAX_ID_LENGTH,
            ]));
        } catch (ConfigEntityIdLengthException $e) {
            // Expected exception; just continue testing.
        }
        // Ensure that creating an entity with the same id as an existing one is not
        // possible.
        $same_id = $storage->create([
            'id' => $config_test->id(),
        ]);
        $this->assertTrue($same_id->isNew());
        try {
            $same_id->save();
            $this->fail('Not possible to overwrite an entity.');
        } catch (EntityStorageException $e) {
            // Expected exception; just continue testing.
        }
        // Verify that renaming the ID returns correct status and properties.
        $ids = [
            $expected['id'],
            'second_' . $this->randomMachineName(4),
            'third_' . $this->randomMachineName(4),
        ];
        for ($i = 1; $i < 3; $i++) {
            $old_id = $ids[$i - 1];
            $new_id = $ids[$i];
            // Before renaming, everything should point to the current ID.
            $this->assertSame($old_id, $config_test->id());
            $this->assertSame($old_id, $config_test->getOriginalId());
            // Rename.
            $config_test->set('id', $new_id);
            $this->assertSame($new_id, $config_test->id());
            $status = $config_test->save();
            $this->assertSame(SAVED_UPDATED, $status);
            $this->assertFalse($config_test->isNew());
            // Verify that originalID points to new ID directly after renaming.
            $this->assertSame($new_id, $config_test->id());
            $this->assertSame($new_id, $config_test->getOriginalId());
        }
        // Test config entity prepopulation.
        \Drupal::state()->set('config_test.prepopulate', TRUE);
        $config_test = $storage->create([
            'foo' => 'bar',
        ]);
        $this->assertEquals('baz', $config_test->get('foo'), 'Initial value correctly populated');
    }
    
    /**
     * Tests CRUD operations through the UI.
     */
    public function testCrudUi() : void {
        $this->drupalLogin($this->drupalCreateUser([
            'administer site configuration',
        ]));
        $id = $this->randomMachineName();
        $label1 = $this->randomMachineName();
        $label2 = $this->randomMachineName();
        $label3 = $this->randomMachineName();
        $message_insert = "{$label1} configuration has been created.";
        $message_update = "{$label2} configuration has been updated.";
        $message_delete = "The test configuration {$label2} has been deleted.";
        // Create a configuration entity.
        $edit = [
            'id' => $id,
            'label' => $label1,
        ];
        $this->drupalGet('admin/structure/config_test/add');
        $this->submitForm($edit, 'Save');
        $this->assertSession()
            ->addressEquals('admin/structure/config_test');
        $this->assertSession()
            ->statusCodeEquals(200);
        $this->assertSession()
            ->pageTextContains($message_insert);
        $this->assertSession()
            ->pageTextNotContains($message_update);
        $this->assertSession()
            ->linkByHrefExists("admin/structure/config_test/manage/{$id}");
        // Update the configuration entity.
        $edit = [
            'label' => $label2,
        ];
        $this->drupalGet("admin/structure/config_test/manage/{$id}");
        $this->submitForm($edit, 'Save');
        $this->assertSession()
            ->addressEquals('admin/structure/config_test');
        $this->assertSession()
            ->statusCodeEquals(200);
        $this->assertSession()
            ->pageTextNotContains($message_insert);
        $this->assertSession()
            ->pageTextContains($message_update);
        $this->assertSession()
            ->linkByHrefExists("admin/structure/config_test/manage/{$id}");
        $this->assertSession()
            ->linkByHrefExists("admin/structure/config_test/manage/{$id}/delete");
        // Delete the configuration entity.
        $this->drupalGet("admin/structure/config_test/manage/{$id}");
        $this->clickLink('Delete');
        $this->assertSession()
            ->addressEquals("admin/structure/config_test/manage/{$id}/delete");
        $this->submitForm([], 'Delete');
        $this->assertSession()
            ->addressEquals('admin/structure/config_test');
        $this->assertSession()
            ->statusCodeEquals(200);
        $this->assertSession()
            ->pageTextNotContains($message_update);
        $this->assertSession()
            ->pageTextContains($message_delete);
        $this->assertSession()
            ->pageTextNotContains($label1);
        $this->assertSession()
            ->linkByHrefNotExists("admin/structure/config_test/manage/{$id}");
        // Re-create a configuration entity.
        $edit = [
            'id' => $id,
            'label' => $label1,
        ];
        $this->drupalGet('admin/structure/config_test/add');
        $this->submitForm($edit, 'Save');
        $this->assertSession()
            ->addressEquals('admin/structure/config_test');
        $this->assertSession()
            ->statusCodeEquals(200);
        $this->assertSession()
            ->pageTextContains($label1);
        $this->assertSession()
            ->linkByHrefExists("admin/structure/config_test/manage/{$id}");
        // Rename the configuration entity's ID/machine name.
        $edit = [
            'id' => $this->randomMachineName(),
            'label' => $label3,
        ];
        $this->drupalGet("admin/structure/config_test/manage/{$id}");
        $this->submitForm($edit, 'Save');
        $this->assertSession()
            ->addressEquals('admin/structure/config_test');
        $this->assertSession()
            ->statusCodeEquals(200);
        $this->assertSession()
            ->pageTextNotContains($label1);
        $this->assertSession()
            ->pageTextNotContains($label2);
        $this->assertSession()
            ->pageTextContains($label3);
        $this->assertSession()
            ->linkByHrefNotExists("admin/structure/config_test/manage/{$id}");
        $id = $edit['id'];
        $this->assertSession()
            ->linkByHrefExists("admin/structure/config_test/manage/{$id}");
        // Create a configuration entity with '0' machine name.
        $edit = [
            'id' => '0',
            'label' => '0',
        ];
        $this->drupalGet('admin/structure/config_test/add');
        $this->submitForm($edit, 'Save');
        $this->assertSession()
            ->statusCodeEquals(200);
        $this->assertSession()
            ->pageTextContains('0 configuration has been created.');
        $this->assertSession()
            ->linkByHrefExists('admin/structure/config_test/manage/0');
        $this->assertSession()
            ->linkByHrefExists('admin/structure/config_test/manage/0/delete');
        $this->drupalGet('admin/structure/config_test/manage/0/delete');
        $this->submitForm([], 'Delete');
        $storage = \Drupal::entityTypeManager()->getStorage('config_test');
        $this->assertNull($storage->load(0), 'Test entity deleted');
        // Create a configuration entity with a property that uses AJAX to show
        // extra form elements. Test this scenario in a non-JS case by using a
        // 'js-hidden' submit button.
        // @see \Drupal\Tests\config\FunctionalJavascript\ConfigEntityTest::testAjaxOnAddPage()
        $this->drupalGet('admin/structure/config_test/add');
        $id = $this->randomMachineName();
        $edit = [
            'id' => $id,
            'label' => $this->randomString(),
            'size' => 'custom',
        ];
        $this->assertSession()
            ->fieldExists('size');
        $this->assertSession()
            ->fieldNotExists('size_value');
        $this->submitForm($edit, 'Change size');
        $this->assertSession()
            ->fieldExists('size');
        $this->assertSession()
            ->fieldExists('size_value');
        // Submit the form with the regular 'Save' button and check that the entity
        // values are correct.
        $edit += [
            'size_value' => 'medium',
        ];
        $this->submitForm($edit, 'Save');
        $entity = $storage->load($id);
        $this->assertEquals('custom', $entity->get('size'));
        $this->assertEquals('medium', $entity->get('size_value'));
    }

}