From d1df3c143b3ce56167b5d8aec84c15e8b281f875 Mon Sep 17 00:00:00 2001
From: Josh Lockhart <hello@joshlockhart.com>
Date: Tue, 31 Mar 2015 13:13:30 -0400
Subject: [PATCH] Add tests for new Last-Modified logic

---
 tests/CacheTest.php | 32 ++++++++++++++++++++++++++++++++
 1 file changed, 32 insertions(+)

diff --git a/tests/CacheTest.php b/tests/CacheTest.php
index d26bf06..efa937c 100644
--- a/tests/CacheTest.php
+++ b/tests/CacheTest.php
@@ -64,6 +64,38 @@ public function testLastModifiedWithCacheHit()
         $this->assertEquals(304, $res->getStatusCode());
     }
 
+    public function testLastModifiedWithCacheHitAndNewerDate()
+    {
+        $now = time();
+        $lastModified = gmdate('D, d M Y H:i:s T', $now + 86400);
+        $ifModifiedSince = gmdate('D, d M Y H:i:s T', $now + 172800); // <-- Newer date
+        $cache = new Cache('public', 86400);
+        $req = $this->requestFactory()->withHeader('If-Modified-Since', $ifModifiedSince);
+        $res = new Response();
+        $next = function (Request $req, Response $res) use ($lastModified) {
+            return $res->withHeader('Last-Modified', $lastModified);
+        };
+        $res = $cache($req, $res, $next);
+
+        $this->assertEquals(304, $res->getStatusCode());
+    }
+
+    public function testLastModifiedWithCacheHitAndOlderDate()
+    {
+        $now = time();
+        $lastModified = gmdate('D, d M Y H:i:s T', $now + 86400);
+        $ifModifiedSince = gmdate('D, d M Y H:i:s T', $now); // <-- Older date
+        $cache = new Cache('public', 86400);
+        $req = $this->requestFactory()->withHeader('If-Modified-Since', $ifModifiedSince);
+        $res = new Response();
+        $next = function (Request $req, Response $res) use ($lastModified) {
+            return $res->withHeader('Last-Modified', $lastModified);
+        };
+        $res = $cache($req, $res, $next);
+
+        $this->assertEquals(200, $res->getStatusCode());
+    }
+
     public function testLastModifiedWithCacheMiss()
     {
         $now = time();