Fix exceeded() to fall back to configured interval when Retry-After is missing

src/Limit.php

@@ -130,8 +130,10 @@ public function exceeded(?int $releaseInSeconds = null): void
 
         $this->hits = $this->allow;
 
-        if (isset($releaseInSeconds)) {
-            $interval = DateInterval::createFromDateString($releaseInSeconds . ' seconds');
+        $seconds = $releaseInSeconds ?? $this->releaseInSeconds;
+
+        if ($seconds > 0) {
+            $interval = DateInterval::createFromDateString($seconds . ' seconds');
 
             if ($interval === false) {
                 return;

tests/Unit/LimitTest.php

@@ -100,3 +100,31 @@
 
     expect($limit->getReleaseInSeconds())->toEqual($seconds);
 });
+
+test('exceeded without releaseInSeconds falls back to the configured interval', function () {
+    $limit = Limit::allow(10)->everySeconds(120);
+
+    $limit->exceeded();
+
+    expect($limit->wasManuallyExceeded())->toBeTrue()
+        ->and($limit->getHits())->toBe(10)
+        ->and($limit->getRemainingSeconds())->toBe(120);
+});
+
+test('exceeded with explicit releaseInSeconds uses the provided value', function () {
+    $limit = Limit::allow(10)->everySeconds(120);
+
+    $limit->exceeded(releaseInSeconds: 300);
+
+    expect($limit->wasManuallyExceeded())->toBeTrue()
+        ->and($limit->getRemainingSeconds())->toBe(300);
+});
+
+test('custom limiter exceeded without releaseInSeconds falls back to default 60 seconds', function () {
+    $limit = Limit::custom(function () {});
+
+    $limit->exceeded();
+
+    expect($limit->wasManuallyExceeded())->toBeTrue()
+        ->and($limit->getRemainingSeconds())->toBe(60);
+});