license: built full stack, test and documentation

backend/tests/Unit/LicenseKindTest.php

@@ -0,0 +1,27 @@
+<?php
+
+namespace Tests\Unit;
+
+use App\Enums\LicenseKind;
+use PHPUnit\Framework\TestCase;
+
+class LicenseKindTest extends TestCase
+{
+    public function test_every_case_has_a_non_empty_label(): void
+    {
+        foreach (LicenseKind::cases() as $case) {
+            $this->assertNotSame('', $case->label());
+        }
+    }
+
+    public function test_rights_statement_case_value_and_label(): void
+    {
+        $this->assertSame('rights_statement', LicenseKind::RightsStatement->value);
+        $this->assertSame('Rights statement', LicenseKind::RightsStatement->label());
+    }
+
+    public function test_it_is_a_string_backed_enum(): void
+    {
+        $this->assertSame(LicenseKind::Mark, LicenseKind::from('mark'));
+    }
+}