fix tests

Algorithm/Clustering/AffinityPropagation.php

@@ -188,7 +188,7 @@ final class AffinityPropagation implements ClusteringInterface
     /**
      * Find the nearest group for a point
      *
-     * @param array<int, array<int, int|float>> $similarityMatrix Similarity matrix
+     * @param array<int, Point> $similarityMatrix Similarity matrix
      * @param int               $point            Point id in the similarity matrix to compare
      *
      * @return int

Algorithm/Clustering/AgglomerativeClustering.php

@@ -42,7 +42,7 @@ final class AgglomerativeClustering implements ClusteringInterface
      * @var \Closure
      * @since 1.0.0
      */
-    private \Closure $metric;
+    public \Closure $metric;
 
     /**
      * Metric to calculate the distance between two points
@@ -50,7 +50,7 @@ final class AgglomerativeClustering implements ClusteringInterface
      * @var \Closure
      * @since 1.0.0
      */
-    private \Closure $linkage;
+    public \Closure $linkage;
 
     /**
      * Constructor

Algorithm/Clustering/Point.php

@@ -89,7 +89,7 @@ class Point implements PointInterface
     /**
      * {@inheritdoc}
      */
-    public function isEquals(PointInterface $point) : bool
+    public function isEquals(Point $point) : bool
     {
         return $this->name === $point->name && $this->coordinates === $point->coordinates;
     }

Algorithm/Clustering/PointInterface.php

@@ -67,11 +67,11 @@ interface PointInterface
     /**
      * Check if two points are equal
      *
-     * @param self $point Point to compare with
+     * @param Point $point Point to compare with
      *
      * @return bool
      *
      * @since 1.0.0
      */
-    public function isEquals(self $point) : bool;
+    public function isEquals(Point $point) : bool;
 }

Business/Finance/Loan.php

@@ -139,8 +139,8 @@ final class Loan
      *
      * @param float $loan     Loan amount
      * @param float $r        Rate
-     * @param float $duration Loan duration
-     * @param float $interval Payment interval
+     * @param int   $duration Loan duration
+     * @param int   $interval Payment interval
      *
      * @return float
      *
@@ -156,7 +156,7 @@ final class Loan
      *
      * @param float $loan     Loan amount
      * @param float $r        Rate
-     * @param float $interval Payment interval
+     * @param int   $interval Payment interval
      *
      * @return float
      *
@@ -171,7 +171,7 @@ final class Loan
      * Calculate the principal for amortization loans
      *
      * @param float $payment  Total payment
-     * @param float $interval Payment interval
+     * @param float $interest Interest payment
      *
      * @return float
      *
@@ -183,6 +183,8 @@ final class Loan
     }
 
     /**
+     * Calculate schedule for amortization loan
+     *
      * @param float $loan     Loan amount
      * @param float $r        Borrowing rate (annual)
      * @param int   $duration Loan duration in months

Utils/Barcode/CodeAbstract.php

@@ -217,6 +217,9 @@ abstract class CodeAbstract
     public function saveToPngFile(string $file) : void
     {
         $res = $this->get();
+        if ($res === null) {
+            return;
+        }
 
         \imagepng($res, $file);
         \imagedestroy($res);
@@ -234,6 +237,9 @@ abstract class CodeAbstract
     public function saveToJpgFile(string $file) : void
     {
         $res = $this->get();
+        if ($res === null) {
+            return;
+        }
 
         \imagejpeg($res, $file);
         \imagedestroy($res);