reconstruction of the project

tests/Unit/Services/Attendance/SemesterRangeServiceTest.php

@@ -0,0 +1,40 @@
+<?php
+
+namespace Tests\Unit\Services\Attendance;
+
+use App\Services\Attendance\SemesterRangeService;
+use PHPUnit\Framework\TestCase;
+
+class SemesterRangeServiceTest extends TestCase
+{
+    public function test_normalize_semester(): void
+    {
+        $service = new SemesterRangeService();
+
+        $this->assertSame('Fall', $service->normalizeSemester('fall'));
+        $this->assertSame('Spring', $service->normalizeSemester('SPRING'));
+        $this->assertSame('', $service->normalizeSemester('summer'));
+    }
+
+    public function test_get_school_year_range(): void
+    {
+        $service = new SemesterRangeService();
+
+        [$start, $end] = $service->getSchoolYearRange('2025-2026');
+
+        $this->assertSame('2025-09-01', $start);
+        $this->assertSame('2026-05-31', $end);
+    }
+
+    public function test_build_sunday_list(): void
+    {
+        $service = new SemesterRangeService();
+
+        $sundays = $service->buildSundayList('2025-09-01', '2025-09-30');
+
+        $this->assertContains('2025-09-07', $sundays);
+        $this->assertContains('2025-09-14', $sundays);
+        $this->assertContains('2025-09-21', $sundays);
+        $this->assertContains('2025-09-28', $sundays);
+    }
+}