Update the test version requirement

rtheunissen · rtheunissen · commit 64dcf5e2b880 · 2017-08-03T14:05:41.000+12:00
diff --git a/composer.json b/composer.json
@@ -9,7 +9,7 @@
         }
     ],
     "require-dev": {
-        "php-ds/tests": "^1.1"
+        "php-ds/tests": "^1.2"
     },
     "scripts": {
         "test"   : "php test.php",
