Require Laravel 5.7 and PHP 7.1

Due to some changes in the Laravel internals in regard with handling
eager loading, upgrading the library to Laravel 5.7 is required. Also,
nobody should be on PHP < 7 anyway. So now is a good time, if any...

Author: Ciaro

composer.json

@@ -1,6 +1,6 @@
 {
     "name": "kalnoy/nestedset",
-    "description": "Nested Set Model for Laravel 4-5",
+    "description": "Nested Set Model for Laravel 5.7 and up",
     "keywords": ["laravel", "nested sets", "nsm", "database", "hierarchy"],
     "license": "MIT",
 
@@ -12,10 +12,10 @@
     ],
 
     "require": {
-        "php": ">=5.5.9",
-        "illuminate/support": "5.2 - 5.8",
-        "illuminate/database": "5.2 - 5.8",
-        "illuminate/events": "5.2 - 5.8"
+        "php": ">=7.1.3",
+        "illuminate/support": "~5.7.0|~5.8.0",
+        "illuminate/database": "~5.7.0|~5.8.0",
+        "illuminate/events": "~5.7.0|~5.8.0"
     },
 
     "autoload": {
@@ -25,7 +25,7 @@
     },
 
     "require-dev": {
-        "phpunit/phpunit": "4.8.*"
+        "phpunit/phpunit": "7.*"
     },
 
     "minimum-stability": "dev",

phpunit.xml

@@ -8,7 +8,6 @@
          convertWarningsToExceptions="true"
          processIsolation="false"
          stopOnFailure="true"
-         syntaxCheck="false"
 >
     <testsuites>
         <testsuite name="Package Test Suite">

tests/NodeTest.php

@@ -3,7 +3,7 @@
 use Illuminate\Database\Capsule\Manager as Capsule;
 use Kalnoy\Nestedset\NestedSet;
 
-class NodeTest extends PHPUnit_Framework_TestCase
+class NodeTest extends PHPUnit\Framework\TestCase
 {
     public static function setUpBeforeClass()
     {

tests/ScopedNodeTest.php

@@ -3,7 +3,7 @@
 use Illuminate\Database\Capsule\Manager as Capsule;
 use Kalnoy\Nestedset\NestedSet;
 
-class ScopedNodeTest extends PHPUnit_Framework_TestCase
+class ScopedNodeTest extends PHPUnit\Framework\TestCase
 {
     public static function setUpBeforeClass()
     {