From ca00fcb68533765c92b91df8e975e13a4caf5a2c Mon Sep 17 00:00:00 2001
From: Alexander Wanyoike <wanyoike.alexander@gmail.com>
Date: Thu, 15 Apr 2021 13:13:18 +0100
Subject: [PATCH] Return null for empty segment sets

---
 tests/unit/SegmentSetTest.php | 8 ++++++++
 1 file changed, 8 insertions(+)

diff --git a/tests/unit/SegmentSetTest.php b/tests/unit/SegmentSetTest.php
index 314cd1e..cad4fba 100644
--- a/tests/unit/SegmentSetTest.php
+++ b/tests/unit/SegmentSetTest.php
@@ -93,4 +93,12 @@ public function testFirst()
         $actual = $segments->first();
         self::assertTrue($actual->equals($price));
     }
+
+    public function testFirstWithEmptySegmentSet()
+    {
+        $segments = SegmentSet::of([]);
+
+        $actual = $segments->first();
+        self::assertNull($actual);
+    }
 }
\ No newline at end of file