added version command and api endpoint (#321)

tests/Command/VersionCommandTest.php

@@ -0,0 +1,67 @@
+<?php
+
+/*
+ * This file is part of the Kimai time-tracking app.
+ *
+ * For the full copyright and license information, please view the LICENSE
+ * file that was distributed with this source code.
+ */
+
+namespace App\Tests\Command;
+
+use App\Command\VersionCommand;
+use App\Constants;
+use Symfony\Bundle\FrameworkBundle\Console\Application;
+use Symfony\Bundle\FrameworkBundle\Test\KernelTestCase;
+use Symfony\Component\Console\Tester\CommandTester;
+
+/**
+ * @coversDefaultClass \App\Command\VersionCommand
+ * @group integration
+ */
+class VersionCommandTest extends KernelTestCase
+{
+    /**
+     * @var Application
+     */
+    protected $application;
+
+    protected function setUp()
+    {
+        $kernel = self::bootKernel();
+        $this->application = new Application($kernel);
+
+        $this->application->add(new VersionCommand());
+    }
+
+    /**
+     * @dataProvider getTestData
+     */
+    public function testVersion(array $options, $result)
+    {
+        $commandTester = $this->getCommandTester($options);
+        $output = $commandTester->getDisplay();
+        $this->assertEquals($result . PHP_EOL, $output);
+    }
+
+    public function getTestData()
+    {
+        return [
+            [[], 'Kimai 2 - ' . Constants::VERSION . ' ' . Constants::STATUS . ' (' . Constants::NAME . ') by Kevin Papst and contributors.'],
+            [['--name' => true], Constants::NAME],
+            [['--candidate' => true], Constants::STATUS],
+            [['--short' => true], Constants::VERSION],
+            [['--semver' => true], Constants::VERSION . '-' . Constants::STATUS],
+        ];
+    }
+
+    protected function getCommandTester(array $options = [])
+    {
+        $command = $this->application->find('kimai:version');
+        $commandTester = new CommandTester($command);
+        $inputs = array_merge(['command' => $command->getName()], $options);
+        $commandTester->execute($inputs);
+
+        return $commandTester;
+    }
+}