diff --git a/tests/BelongsToOneTest.php b/tests/BelongsToOneTest.php
index c57115d..1932201 100644
--- a/tests/BelongsToOneTest.php
+++ b/tests/BelongsToOneTest.php
@@ -23,6 +23,7 @@ public function testEagerLoading(): void
             ->attach(User::query()->create([]), [
                 'status' => 1,
             ]);
+
         /** @var \Zing\LaravelEloquentRelationships\Tests\Models\Group $group */
         $group = Group::query()->with(['leader'])->findOrFail($group->getKey());
         self::assertInstanceOf(User::class, $group->leader);
@@ -76,6 +77,7 @@ public function testOfMany(): void
             ->attach($group, [
                 'status' => 1,
             ]);
+
         /** @var \Zing\LaravelEloquentRelationships\Tests\Models\Group $group */
         $group = Group::query()->findOrFail($group->getKey());
         self::assertSame('leader', $group->leader()->getRelationName());
@@ -104,10 +106,11 @@ public function testRetrievedTimes(): void
         ) use (&$retrievedLogins): void {
             foreach ($models as $model) {
                 if ($model instanceof \Zing\LaravelEloquentRelationships\Tests\Models\User) {
-                    $retrievedLogins++;
+                    ++$retrievedLogins;
                 }
             }
         });
+
         /** @var \Zing\LaravelEloquentRelationships\Tests\Models\Group $group */
         $group = Group::query()->create([
             'name' => $this->faker->name(),
@@ -151,6 +154,7 @@ public function testReceivingModel(): void
             ->create([], [
                 'status' => 1,
             ]);
+
         /** @var \Zing\LaravelEloquentRelationships\Tests\Models\User $leader */
         $leader = $group->leader;
         $this->assertNotNull($leader);
diff --git a/tests/MorphToOneTest.php b/tests/MorphToOneTest.php
index 0e0a037..26937eb 100644
--- a/tests/MorphToOneTest.php
+++ b/tests/MorphToOneTest.php
@@ -23,9 +23,11 @@ public function testEagerLoading(): void
             ->attach(Image::query()->create([
                 'url' => $url,
             ]), []);
+
         /** @var \Zing\LaravelEloquentRelationships\Tests\Models\Product $product */
         $product = Product::query()->with(['cover'])->findOrFail($product->getKey());
         self::assertInstanceOf(Image::class, $product->cover);
+
         /** @var \Zing\LaravelEloquentRelationships\Tests\Models\Image $cover */
         $cover = $product->cover;
         self::assertSame($url, $cover->url);
@@ -40,6 +42,7 @@ public function testLazyLoading(): void
                 'url' => $url,
             ]), []);
         self::assertInstanceOf(Image::class, $product->cover);
+
         /** @var \Zing\LaravelEloquentRelationships\Tests\Models\Image $cover */
         $cover = $product->cover;
         self::assertSame($url, $cover->url);
@@ -51,6 +54,7 @@ public function testWithDefault(): void
             'name' => 'test',
         ]);
         self::assertInstanceOf(Image::class, $product->cover);
+
         /** @var \Zing\LaravelEloquentRelationships\Tests\Models\Image $cover */
         $cover = $product->cover;
         self::assertSame('https://example.com/default.png', $cover->url);
@@ -74,6 +78,7 @@ public function testOfMany(): void
         $product = Product::query()->create([]);
         $image->bestProduct()
             ->attach($product, []);
+
         /** @var \Zing\LaravelEloquentRelationships\Tests\Models\Product $product */
         $product = Product::query()->findOrFail($image->getKey());
         self::assertSame('cover', $product->cover()->getRelationName());
@@ -102,7 +107,7 @@ public function testRetrievedTimes(): void
         ) use (&$retrievedLogins): void {
             foreach ($models as $model) {
                 if ($model instanceof \Zing\LaravelEloquentRelationships\Tests\Models\Image) {
-                    $retrievedLogins++;
+                    ++$retrievedLogins;
                 }
             }
         });
@@ -149,6 +154,7 @@ public function testReceivingModel(): void
             ->create([
                 'url' => 'test',
             ]);
+
         /** @var \Zing\LaravelEloquentRelationships\Tests\Models\Image $cover */
         $cover = $product->cover;
         $this->assertNotNull($cover);
@@ -177,6 +183,7 @@ public function testMorphType(): void
             ->updateExistingPivot($image->getKey(), [
                 'imageable_type' => 'bar',
             ]);
+
         /** @var \Zing\LaravelEloquentRelationships\Tests\Models\Image $cover */
         $cover = $product->cover;
         $this->assertNotNull($cover);
diff --git a/tests/MorphedByOneTest.php b/tests/MorphedByOneTest.php
index f943c72..42a797e 100644
--- a/tests/MorphedByOneTest.php
+++ b/tests/MorphedByOneTest.php
@@ -28,6 +28,7 @@ public function testEagerLoading(): void
             ->attach(Image::query()->create([
                 'url' => $url,
             ]), []);
+
         /** @var \Zing\LaravelEloquentRelationships\Tests\Models\Image $image */
         $image = Image::query()->with(['bestProduct'])->findOrFail($product->getKey());
         self::assertInstanceOf(Product::class, $image->bestProduct);
@@ -43,6 +44,7 @@ public function testLazyLoading(): void
             ->attach(Image::query()->create([
                 'url' => $url,
             ]), []);
+
         /** @var \Zing\LaravelEloquentRelationships\Tests\Models\Image $image */
         $image = Image::query()->findOrFail($product->getKey());
         self::assertInstanceOf(Product::class, $image->bestProduct);
@@ -77,6 +79,7 @@ public function testOfMany(): void
         ]);
         $product->images()
             ->attach($image, []);
+
         /** @var \Zing\LaravelEloquentRelationships\Tests\Models\Image $image */
         $image = Image::query()->findOrFail($product->getKey());
         self::assertSame('bestProduct', $image->bestProduct()->getRelationName());
@@ -103,7 +106,7 @@ public function testRetrievedTimes(): void
         ) use (&$retrievedLogins): void {
             foreach ($models as $model) {
                 if ($model instanceof \Zing\LaravelEloquentRelationships\Tests\Models\Product) {
-                    $retrievedLogins++;
+                    ++$retrievedLogins;
                 }
             }
         });
@@ -142,6 +145,7 @@ public function testReceivingModel(): void
             ->create([
                 'name' => 'test',
             ]);
+
         /** @var \Zing\LaravelEloquentRelationships\Tests\Models\Product $product */
         $product = $image->bestProduct;
         $this->assertNotNull($product);
@@ -170,6 +174,7 @@ public function testMorphType(): void
             ->updateExistingPivot($product->getKey(), [
                 'imageable_type' => 'bar',
             ]);
+
         /** @var \Zing\LaravelEloquentRelationships\Tests\Models\Product $product */
         $product = $image->bestProduct;
         $this->assertNotNull($product);