fix: called-off dispositions no longer block teamers

tests/Repository/AssignmentRepositoryTest.php

@@ -0,0 +1,60 @@
+<?php
+
+declare(strict_types=1);
+
+namespace App\Tests\Repository;
+
+use App\Entity\Assignment;
+use App\Entity\Disposition;
+use App\Repository\AssignmentRepository;
+use Doctrine\ORM\EntityManagerInterface;
+use Doctrine\ORM\Query;
+use Symfony\Bundle\FrameworkBundle\Test\KernelTestCase;
+
+/**
+ * The slot counting behind every teamer facing assignment list lives in DQL, so the query is
+ * compiled here and the parts carrying the semantics are pinned.
+ */
+class AssignmentRepositoryTest extends KernelTestCase
+{
+    public function testAvailableAssignmentsQueryIgnoresCalledOffDispositions(): void
+    {
+        $dql = $this->createAvailableAssignmentsIdsQuery()->getDQL();
+
+        // the exclusion has to live in the JOIN condition: moved into the WHERE clause it would
+        // drop assignments without any disposition at all
+        $this->assertStringContainsString(
+            'LEFT JOIN assignment.dispositions disposition WITH disposition.status <> :dispositionCalledOff',
+            $dql
+        );
+        $this->assertStringContainsString(
+            'HAVING assignment.availableDispositions > COUNT(disposition.id)',
+            $dql
+        );
+    }
+
+    public function testAvailableAssignmentsQueryBindsTheCalledOffStatuses(): void
+    {
+        $query = $this->createAvailableAssignmentsIdsQuery();
+
+        $this->assertSame(
+            Disposition::STATUS_CALLED_OFF,
+            $query->getParameter('dispositionCalledOff')->getValue()
+        );
+        $this->assertSame(
+            [Assignment::STATUS_DRAFT, Assignment::STATUS_CALLED_OFF],
+            $query->getParameter('status')->getValue()
+        );
+    }
+
+    private function createAvailableAssignmentsIdsQuery(): Query
+    {
+        /** @var EntityManagerInterface $entityManager */
+        $entityManager = static::getContainer()->get(EntityManagerInterface::class);
+
+        /** @var AssignmentRepository $repository */
+        $repository = $entityManager->getRepository(Assignment::class);
+
+        return $repository->getAvailableAssignmentsIdsQuery();
+    }
+}