Added setSnapshotId method to easily override the snapshot identifier

Author: buismaarten

src/Concerns/SnapshotIdAware.php

@@ -6,14 +6,25 @@
 
 trait SnapshotIdAware
 {
+    private ?string $snapshotId = null;
+
     /*
      * Determines the snapshot's id. By default, the test case's class and
      * method names are used.
      */
     protected function getSnapshotId(): string
     {
+        if ($this->snapshotId !== null) {
+            return $this->snapshotId;
+        }
+
         return (new ReflectionClass($this))->getShortName().'__'.
             $this->nameWithDataSet().'__'.
             $this->snapshotIncrementor;
     }
+
+    protected function setSnapshotId(string $snapshotId): void
+    {
+        $this->snapshotId = $snapshotId;
+    }
 }