enhance test run (#193)

tests/TestCase.php

@@ -0,0 +1,27 @@
+<?php
+
+declare(strict_types=1);
+
+namespace Tests;
+
+use Prophecy\Prophet;
+
+/**
+ * @internal
+ */
+class TestCase extends \PHPUnit\Framework\TestCase
+{
+    protected Prophet $prophet;
+
+    protected function setUp(): void
+    {
+        parent::setUp();
+        $this->prophet = new Prophet();
+    }
+
+    protected function tearDown(): void
+    {
+        parent::tearDown();
+        $this->prophet->checkPredictions();
+    }
+}