fix: snapshot key on retry / repeat

tests/Features/Flaky.php

@@ -1,5 +1,6 @@
 <?php
 
+use Pest\TestSuite;
 use Symfony\Component\Process\Process;
 
 it('passes on first try', function (): void {
@@ -231,6 +232,41 @@ it('does not leak mock objects between retries', function (): void {
     expect($mock->count())->toBe(1);
 })->flaky(tries: 3);
 
+it('resolves the same snapshot ordinals on every retry', function (): void {
+    $file = sys_get_temp_dir().'/pest_flaky_snapshot_ordinals';
+    $count = file_exists($file) ? (int) file_get_contents($file) : 0;
+    file_put_contents($file, (string) ++$count);
+
+    $snapshots = TestSuite::getInstance()->snapshots;
+
+    expect($snapshots->next()->path())->toEndWith('resolves_the_same_snapshot_ordinals_on_every_retry.snap')
+        ->and($snapshots->next()->path())->toEndWith('resolves_the_same_snapshot_ordinals_on_every_retry__2.snap');
+
+    if ($count < 3) {
+        throw new Exception('Flaky snapshot ordinals');
+    }
+
+    @unlink($file);
+})->flaky(tries: 3);
+
+it('matches the same snapshot on every retry', function (): void {
+    $file = sys_get_temp_dir().'/pest_flaky_snapshot_match';
+    $count = file_exists($file) ? (int) file_get_contents($file) : 0;
+    file_put_contents($file, (string) ++$count);
+
+    $snapshots = TestSuite::getInstance()->snapshots;
+    $snapshots->current()->write('the same on every attempt');
+
+    expect('the same on every attempt')->toMatchSnapshot()
+        ->and($snapshots->current()->path())->toEndWith('matches_the_same_snapshot_on_every_retry.snap');
+
+    if ($count < 2) {
+        throw new Exception('Flaky snapshot match');
+    }
+
+    @unlink($file);
+})->flaky(tries: 3);
+
 it('does not stop retrying when snapshot changes are absent', function (): void {
     $file = sys_get_temp_dir().'/pest_flaky_no_snapshot';
     $count = file_exists($file) ? (int) file_get_contents($file) : 0;