Created more tests on CLI module

module/CLI/test/ConfigProviderTest.php

@@ -0,0 +1,30 @@
+<?php
+namespace ShlinkioTest\Shlink\CLI;
+
+use PHPUnit_Framework_TestCase as TestCase;
+use Shlinkio\Shlink\CLI\ConfigProvider;
+
+class ConfigProviderTest extends TestCase
+{
+    /**
+     * @var ConfigProvider
+     */
+    protected $configProvider;
+
+    public function setUp()
+    {
+        $this->configProvider = new ConfigProvider();
+    }
+
+    /**
+     * @test
+     */
+    public function confiIsProperlyReturned()
+    {
+        $config = $this->configProvider->__invoke();
+
+        $this->assertArrayHasKey('cli', $config);
+        $this->assertArrayHasKey('services', $config);
+        $this->assertArrayHasKey('translator', $config);
+    }
+}