[Nostromo] Add tests

src/Mage/Tests/Command/BuiltIn/VersionCommandTest.php

@@ -0,0 +1,30 @@
+<?php
+namespace Mage\Tests\Command\BuiltIn;
+
+
+use Mage\Command\BuiltIn\VersionCommand;
+use Mage\Command\AbstractCommand;
+use Mage\Tests\MageTestApplication;
+use Mage\Tests\Runtime\RuntimeMockup;
+use Mage\Mage;
+use Symfony\Component\Console\Tester\CommandTester;
+use PHPUnit\Framework\TestCase;
+
+class VersionCommandTest extends TestCase
+{
+    public function testVersionOutput()
+    {
+        $application = new MageTestApplication();
+        $application->add(new VersionCommand());
+        
+        /** @var AbstractCommand $command */
+        $command = $application->find('version');
+        $command->setRuntime(new RuntimeMockup());
+
+        $tester = new CommandTester($command);
+        $tester->execute(['command' => $command->getName()]);
+
+        $output = trim($tester->getDisplay());
+        $this->assertEquals(sprintf('Magallanes v%s [%s]', Mage::VERSION, Mage::CODENAME), $output);
+    }
+}