Add and update test handlers for suggested users retrieval

Introduced new test files for workflow handlers and adjusted existing `getSuggestedUsers` methods to handle related entity checks and duplicates removal. Also, modified repos to align with test dependencies.

src/Bundle/ChillDocStoreBundle/Tests/Workflow/AccompanyingCourseDocumentWorkflowHandlerTest.php

@@ -0,0 +1,86 @@
+<?php
+
+declare(strict_types=1);
+
+/*
+ * Chill is a software for social workers
+ *
+ * For the full copyright and license information, please view
+ * the LICENSE file that was distributed with this source code.
+ */
+
+namespace Chill\DocStoreBundle\Tests\Workflow;
+
+use Chill\DocStoreBundle\Entity\AccompanyingCourseDocument;
+use Chill\DocStoreBundle\Repository\AccompanyingCourseDocumentRepository;
+use Chill\MainBundle\Entity\User;
+use Chill\MainBundle\Entity\Workflow\EntityWorkflow;
+use Chill\MainBundle\Repository\Workflow\EntityWorkflowRepository;
+use Chill\PersonBundle\Entity\AccompanyingPeriod;
+use PHPUnit\Framework\TestCase;
+use Prophecy\PhpUnit\ProphecyTrait;
+use Symfony\Contracts\Translation\TranslatorInterface;
+use Twig\Environment;
+
+/**
+ * @internal
+ *
+ * @coversNothing
+ */
+class AccompanyingCourseDocumentWorkflowHandlerTest extends TestCase
+{
+    use ProphecyTrait;
+
+    public function testGetSuggestedUsers()
+    {
+        $accompanyingPeriod = new AccompanyingPeriod();
+        $document = new AccompanyingCourseDocument();
+        $document->setCourse($accompanyingPeriod)->setUser($user1 = new User());
+        $accompanyingPeriod->setUser($user = new User());
+        $entityWorkflow = new EntityWorkflow();
+        $entityWorkflow->setRelatedEntityId(1);
+
+        $handler = new AccompanyingCourseDocumentWorkflowHandler(
+            $this->prophesize(TranslatorInterface::class)->reveal(),
+            $this->prophesize(EntityWorkflowRepository::class)->reveal(),
+            $this->buildRepository($document, 1),
+            new WorkflowWithPublicViewDocumentHelper($this->prophesize(Environment::class)->reveal()),
+        );
+
+        $users = $handler->getSuggestedUsers($entityWorkflow);
+
+        self::assertCount(2, $users);
+        self::assertContains($user, $users);
+        self::assertContains($user1, $users);
+    }
+
+    public function testGetSuggestedUsersWithDuplicates()
+    {
+        $accompanyingPeriod = new AccompanyingPeriod();
+        $document = new AccompanyingCourseDocument();
+        $document->setCourse($accompanyingPeriod)->setUser($user1 = new User());
+        $accompanyingPeriod->setUser($user1);
+        $entityWorkflow = new EntityWorkflow();
+        $entityWorkflow->setRelatedEntityId(1);
+
+        $handler = new AccompanyingCourseDocumentWorkflowHandler(
+            $this->prophesize(TranslatorInterface::class)->reveal(),
+            $this->prophesize(EntityWorkflowRepository::class)->reveal(),
+            $this->buildRepository($document, 1),
+            new WorkflowWithPublicViewDocumentHelper($this->prophesize(Environment::class)->reveal()),
+        );
+
+        $users = $handler->getSuggestedUsers($entityWorkflow);
+
+        self::assertCount(1, $users);
+        self::assertContains($user1, $users);
+    }
+
+    private function buildRepository(AccompanyingCourseDocument $document, int $id): AccompanyingCourseDocumentRepository
+    {
+        $repository = $this->prophesize(AccompanyingCourseDocumentRepository::class);
+        $repository->find($id)->willReturn($document);
+
+        return $repository->reveal();
+    }
+}

src/Bundle/ChillDocStoreBundle/Workflow/AccompanyingCourseDocumentWorkflowHandler.php

@@ -91,12 +91,28 @@ final readonly class AccompanyingCourseDocumentWorkflowHandler implements Entity
 
     public function getSuggestedUsers(EntityWorkflow $entityWorkflow): array
     {
-        $suggestedUsers = $entityWorkflow->getUsersInvolved();
+        $related = $this->getRelatedEntity($entityWorkflow);
 
-        $referrer = $this->getRelatedEntity($entityWorkflow)->getCourse()->getUser();
-        $suggestedUsers[spl_object_hash($referrer)] = $referrer;
+        if (null === $related) {
+            return [];
+        }
 
-        return $suggestedUsers;
+        $users = [];
+        if (null !== $user = $related->getUser()) {
+            $users[] = $user;
+        }
+        if (null !== $user = $related->getCourse()->getUser()) {
+            $users[] = $user;
+        }
+
+        return array_values(
+            // filter objects to remove duplicates
+            array_filter(
+                $users,
+                fn ($o, $k) => array_search($o, $users, true) === $k,
+                ARRAY_FILTER_USE_BOTH
+            )
+        );
     }
 
     public function getTemplate(EntityWorkflow $entityWorkflow, array $options = []): string