Makes latest version code testable

app/Commands/Concerns/InteractsWithVersions.php

@@ -4,14 +4,21 @@
 
 trait InteractsWithVersions
 {
+    /**
+     * The latest version resolver.
+     *
+     * @var callable|null
+     */
+    protected static $latestVersionResolver = null;
+
     /**
      * Warns the user about the latest version of Forge CLI.
      *
      * @return void
      */
     protected function ensureLatestVersion()
     {
-        $current = 'v' . config('app.version');
+        $current = 'v'.config('app.version');
 
         if (version_compare($remote = $this->getLatestVersion(), $current) > 0) {
             $this->warnStep(['You are using an outdated version %s of Forge CLI. Please update to %s.', $current, $remote]);
@@ -25,7 +32,7 @@ protected function ensureLatestVersion()
      */
     protected function getLatestVersion()
     {
-        $resolver = function () {
+        $resolver = static::$latestVersionResolver ?? function () {
             $package = json_decode(file_get_contents(
                 'https://packagist.org/p2/laravel/forge-cli.json'
             ), true);
@@ -49,4 +56,15 @@ protected function getLatestVersion()
 
         return $this->config->get('latest_version');
     }
+
+    /**
+     * Sets the latest version resolver.
+     *
+     * @param  callable  $resolver
+     * @return void
+     */
+    public static function resolveLatestVersionUsing($resolver)
+    {
+        static::$latestVersionResolver = $resolver;
+    }
 }

app/Repositories/ConfigRepository.php

@@ -61,7 +61,7 @@ public function flush()
      * @param string $key
      * @param mixed  $default
      *
-     * @return array|int|string
+     * @return array|int|string|null
      */
     public function get($key, $default = null)
     {

tests/Feature/CommandTest.php

@@ -0,0 +1,46 @@
+<?php
+
+use App\Commands\Command;
+
+beforeEach(function () {
+    $this->client->shouldReceive('servers')->andReturn([
+        (object) ['id' => 1, 'name' => 'production', 'ipAddress' => '123.456.789.000'],
+    ]);
+});
+
+afterEach(function () {
+    Command::resolveLatestVersionUsing(null);
+});
+
+it('warns the user about the latest unstable versions', function () {
+    config()->set('app.version', '0.2.1');
+
+    Command::resolveLatestVersionUsing(function () {
+        return 'v0.2.2';
+    });
+
+    $this->artisan('server:list')
+        ->expectsOutput('==> You Are Using An Outdated Version [v0.2.1] Of Forge CLI. Please Update To [v0.2.2].');
+});
+
+it('warns the user about the latest stable versions', function () {
+    config()->set('app.version', '0.2.1');
+
+    Command::resolveLatestVersionUsing(function () {
+        return 'v1.0.0';
+    });
+
+    $this->artisan('server:list')
+        ->expectsOutput('==> You Are Using An Outdated Version [v0.2.1] Of Forge CLI. Please Update To [v1.0.0].');
+});
+
+it('do not warns the user if the version is already up-to-date', function () {
+    config()->set('app.version', '1.0.1');
+
+    Command::resolveLatestVersionUsing(function () {
+        return 'v1.0.1';
+    });
+
+    $this->artisan('server:list')
+        ->doesntExpectOutput('==> You Are Using An Outdated Version [v1.0.1] Of Forge CLI. Please Update To [v1.0.1].');
+});

tests/Pest.php

@@ -1,6 +1,7 @@
 <?php
 
 use App\Clients\Forge;
+use App\Commands\Command;
 use App\Repositories\ConfigRepository;
 use App\Repositories\ForgeRepository;
 use App\Repositories\KeyRepository;
@@ -41,6 +42,10 @@
         );
 
         $this->remote = resolve(RemoteRepository::class);
+
+        Command::resolveLatestVersionUsing(function () {
+            return config('app.version');
+        });
     })->afterEach(function () {
         (new Filesystem)->deleteDirectory(base_path('tests/.laravel-forge'));
     })->in('Feature', 'Unit');