Test against newer PHP versions and use require/autoload-dev

Author: mikehaertl

.travis.yml

@@ -1,6 +1,9 @@
 language: php
 dist: trusty
 php:
+  - "7.4"
+  - "7.3"
+  - "7.2"
   - "7.1"
   - "7.0"
   - "5.6"

composer.json

@@ -9,9 +9,17 @@
             "email": "haertl.mike@gmail.com"
         }
     ],
+    "require-dev": {
+        "phpunit/phpunit": ">4.0 <8"
+    },
     "autoload": {
         "psr-4": {
             "mikehaertl\\tmp\\": "src/"
         }
+    },
+    "autoload-dev": {
+        "psr-4": {
+            "tests\\": "tests"
+        }
     }
 }

tests/FileTest.php

@@ -1,7 +1,10 @@
 <?php
+namespace tests;
+
+use PHPUnit\Framework\TestCase;
 use mikehaertl\tmp\File;
 
-class FileTest extends \PHPUnit\Framework\TestCase
+class FileTest extends TestCase
 {
     public function testCanCreateFile()
     {