Made test coverage for PageBuilder controllers and models

tests/Unit/PageRevisionTest.php

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+<?php
+
+namespace Tests\Unit;
+
+use Tests\TestCase;
+use App\Models\PageRevision;
+use Illuminate\Foundation\Testing\RefreshDatabase;
+
+class PageRevisionTest extends TestCase
+{
+    use RefreshDatabase;
+
+    public function test_page_revision_creation() {
+        $revision = PageRevision::factory()->create();
+        $this->assertDatabaseHas('page_revisions', ['id' => $revision->id]);
+    }
+
+    public function test_revision_has_uuid_and_version() {
+        $revision = PageRevision::factory()->create();
+        $this->assertNotNull($revision->uuid);
+        $this->assertGreaterThan(0, $revision->version);
+    }
+}

tests/Unit/PageTest.php

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+<?php
+
+namespace Tests\Unit;
+
+use Tests\TestCase;
+use App\Models\Page;
+use App\Models\User;
+use Illuminate\Foundation\Testing\RefreshDatabase;
+
+class PageTest extends TestCase
+{
+    use RefreshDatabase;
+
+    public function test_page_creation()
+    {
+        $page = Page::factory()->create();
+        $this->assertDatabaseHas('pages', ['id' => $page->id]);
+    }
+
+    public function test_page_has_author_relationship()
+    {
+        $page = Page::factory()->create();
+        $this->assertInstanceOf(User::class, $page->author);
+    }
+}