Update to allow version check to work with php 8

.travis.yml

@@ -35,9 +35,15 @@ matrix:
       env: COMPOSER_VERSION=2.*@dev
     - php: 7.4
       env: COMPOSER_VERSION=dev-master
+#    - php: 8.0
+#      env: COMPOSER_VERSION=1.*
+#    - php: 8.0
+#      env: COMPOSER_VERSION=2.*@dev
+#    - php: 8.0
+#      env: COMPOSER_VERSION=dev-master
   allow_failures:
     - php: nightly
-    - env: COMPOSER_VERSION=dev-master
+      env: COMPOSER_VERSION=2.*@dev
 
 sudo: false
 

composer.json

@@ -11,7 +11,7 @@
         }
     ],
     "require": {
-        "php": "^5.3 || ^7.0",
+        "php": "^5.3 || ^7.0 || ^8.0",
         "composer-plugin-api": "^1.0 || ^2.0"
     },
     "require-dev": {

src/VersionsCheck.php

@@ -34,8 +34,7 @@ public function checkPackages(ArrayRepository $distRepository, WritableRepositor
             // Old composer versions BC
             $versionConstraint = class_exists('Composer\Semver\Constraint\Constraint')
                 ? new Constraint('>', $package->getVersion())
-                : new VersionConstraint('>', $package->getVersion())
-            ;
+                : new VersionConstraint('>', $package->getVersion());
 
             $higherPackages = $distRepository->findPackages($package->getName(), $versionConstraint);
 
@@ -50,11 +49,24 @@ public function checkPackages(ArrayRepository $distRepository, WritableRepositor
             if (\count($higherPackages) > 0) {
                 // Sort packages by highest version to lowest
                 usort($higherPackages, function (PackageInterface $p1, PackageInterface $p2) {
-                    return Comparator::compare($p1->getVersion(), '<', $p2->getVersion());
+                    if (Comparator::compare($p1->getVersion(), '=', $p2->getVersion())) {
+                        return 0;
+                    }
+                    if (Comparator::compare($p1->getVersion(), '<', $p2->getVersion())) {
+                        return 1;
+                    }
+                    return -1;
                 });
 
                 // Push actual and last package on outdated array
-                array_push($this->outdatedPackages, new OutdatedPackage($package, $higherPackages[0], $this->getPackageDepends($localRepository, $package)));
+                array_push(
+                    $this->outdatedPackages,
+                    new OutdatedPackage(
+                        $package,
+                        $higherPackages[0],
+                        $this->getPackageDepends($localRepository, $package)
+                    )
+                );
             }
         }
     }
@@ -74,7 +86,7 @@ public function getOutput($showDepends = true)
             $this->createNotUpToDateOutput($output, $showDepends);
         }
 
-        return implode(PHP_EOL, $output).PHP_EOL;
+        return implode(PHP_EOL, $output) . PHP_EOL;
     }
 
     /**

tests/OutdatedPackageTest.php

@@ -15,9 +15,9 @@ public function testCreation()
         $actual = new Package('foo/bar', '1.0.0', 'v1.0.0');
         $last = new Package('foo/bar', '2.4.3', 'v2.4.3');
         $links = array(
-            $this->getMock('Composer\Package\PackageInterface'),
-            $this->getMock('Composer\Package\PackageInterface'),
-            $this->getMock('Composer\Package\PackageInterface'),
+            $this->createMock('Composer\Package\PackageInterface'),
+            $this->createMock('Composer\Package\PackageInterface'),
+            $this->createMock('Composer\Package\PackageInterface'),
         );
 
         $outdatedPackage = new OutdatedPackage($actual, $last, $links);

tests/VersionsCheckPluginTest.php

@@ -49,7 +49,7 @@ class VersionsCheckPluginTest extends \PHPUnit_Framework_TestCase
     protected function setUp()
     {
         $this->io = new BufferIO();
-        $this->composer = $this->getMock('Composer\Composer');
+        $this->composer = $this->createMock('Composer\Composer');
         $this->config = new Config(false);
 
         $this->composer->expects($this->any())->method('getConfig')