Fix docblock for embedsOne and add tests for public visibility

- Fix embedsOne docblock: "one-to-many" -> "one-to-one"
- Add tests for direct call and resolveRelationUsing use case

Author: GromNaN

src/Eloquent/EmbedsRelations.php

@@ -53,7 +53,7 @@ public function embedsMany($related, $localKey = null, $foreignKey = null, $rela
     }
 
     /**
-     * Define an embedded one-to-many relationship.
+     * Define an embedded one-to-one relationship.
      *
      * @param class-string $related
      * @param string|null  $localKey

tests/EmbeddedRelationsTest.php

@@ -12,6 +12,9 @@
 use MongoDB\Laravel\Tests\Models\Address;
 use MongoDB\Laravel\Tests\Models\User;
 
+use MongoDB\Laravel\Relations\EmbedsMany;
+use MongoDB\Laravel\Relations\EmbedsOne;
+
 use function array_merge;
 
 class EmbeddedRelationsTest extends TestCase
@@ -972,4 +975,44 @@ public function testUnsetPropertyOnEmbed()
         $this->assertNull($user->addresses->get(0)->city);
         $this->assertSame('Kyoto', $user->addresses->get(1)->city);
     }
+
+    public function testEmbedsManyIsPublic()
+    {
+        $user     = User::create(['name' => 'John Doe']);
+        $relation = $user->embedsMany(Address::class, 'addresses', 'user_id', 'addresses');
+
+        $this->assertInstanceOf(EmbedsMany::class, $relation);
+    }
+
+    public function testEmbedsOneIsPublic()
+    {
+        $user     = User::create(['name' => 'John Doe']);
+        $relation = $user->embedsOne(User::class, 'father', 'user_id', 'father');
+
+        $this->assertInstanceOf(EmbedsOne::class, $relation);
+    }
+
+    public function testResolveRelationUsingEmbedsMany()
+    {
+        User::resolveRelationUsing('dynamicAddresses', fn ($model) => $model->embedsMany(Address::class, 'addresses', 'user_id', 'dynamicAddresses'));
+
+        $user = User::create(['name' => 'John Doe']);
+        $user->dynamicAddresses()->save(new Address(['city' => 'London']));
+
+        $user = User::find($user->id);
+        $this->assertCount(1, $user->dynamicAddresses);
+        $this->assertEquals('London', $user->dynamicAddresses->first()->city);
+    }
+
+    public function testResolveRelationUsingEmbedsOne()
+    {
+        User::resolveRelationUsing('dynamicFather', fn ($model) => $model->embedsOne(User::class, 'father', 'user_id', 'dynamicFather'));
+
+        $user = User::create(['name' => 'John Doe']);
+        $user->dynamicFather()->save(new User(['name' => 'Mark Doe']));
+
+        $user = User::find($user->id);
+        $this->assertNotNull($user->dynamicFather);
+        $this->assertEquals('Mark Doe', $user->dynamicFather->name);
+    }
 }