Additional test

tests/RatingTest.php

@@ -0,0 +1,32 @@
+<?php
+
+namespace DNW\Skills\Tests;
+
+use DNW\Skills\Rating;
+
+class RatingTest extends TestCase
+{
+    public function testGetRatingParameters(): void
+    {
+        $rating = new Rating(100, 10, 5);
+        $this->assertEquals(100, $rating->getMean());
+        $this->assertEquals(10, $rating->getStandardDeviation());
+        $this->assertEquals(50, $rating->getConservativeRating());
+        $this->assertEquals("mean=100.0000, standardDeviation=10.0000", (string)$rating);
+    }
+
+    public function testPartialUpdate(): void
+    {
+        $rating = new Rating(100, 10, 5);
+        $rating_prior = new Rating(100, 10, 5);
+        $rating_new = new Rating(200, 10, 5);
+
+        $rating_partial = $rating ->getPartialUpdate($rating_prior, $rating_new, 0.5);
+
+
+        $this->assertEquals(150, $rating_partial->getMean());
+        $this->assertEquals(10, $rating_partial->getStandardDeviation());
+        $this->assertEquals(100, $rating_partial->getConservativeRating());
+        $this->assertEquals("mean=150.0000, standardDeviation=10.0000", (string)$rating_partial);
+    }
+}