Correct PIPEWAIT and add test for trait

src/CurlInstance.php

@@ -94,18 +94,18 @@ private static function setupCurl(string $curlVersion): array
         if (!defined('CURLMOPT_MAX_TOTAL_CONNECTIONS')) {
             define('CURLMOPT_MAX_TOTAL_CONNECTIONS', 13);
         }
-        if (!defined('CURL_PIPEWAIT')) {
-            define('CURL_PIPEWAIT', 237);
+        if (!defined('CURLOPT_PIPEWAIT')) {
+            define('CURLOPT_PIPEWAIT', 237);
         }
         $curlOptions = [
             CURLOPT_CONNECTTIMEOUT => 10,
             CURLOPT_RETURNTRANSFER => true,
         ];
         if (
-            version_compare('7.0', PHP_VERSION) <= 0 &&
-            version_compare('7.43.0', $curlVersion) <= 0
+            version_compare('7.0', PHP_VERSION, '<=') &&
+            version_compare('7.43.0', $curlVersion, '<=')
         ) {
-            $curlOptions[CURL_PIPEWAIT] = true;
+            $curlOptions[CURLOPT_PIPEWAIT] = true;
         }
         return $curlOptions;
     }

tests/CurlInstanceTest.php

@@ -0,0 +1,30 @@
+<?php
+
+namespace whikloj\BagItTools\Test;
+
+use whikloj\BagItTools\CurlInstance;
+
+class CurlInstanceTest extends BagItTestFramework
+{
+    public function testCreateCurl()
+    {
+        $mock = new class
+        {
+            use CurlInstance;
+        }; // anonymous class
+
+        $handle = $mock->createCurl('http://example.com');
+        $this->assertInstanceOf(\CurlHandle::class, $handle);
+    }
+
+    public function testCurlMulti()
+    {
+        $mock = new class
+        {
+            use CurlInstance;
+        }; // anonymous class
+
+        $handle = $mock->createMultiCurl();
+        $this->assertInstanceOf(\CurlMultiHandle::class, $handle);
+    }
+}