[FEATURE] Add functional tests for CommandContext

Add functional tests to ensure `CommandContext` works as expected.
Tests include validating the return types of `getIo`, `getInput`,
and `getOutput` methods with proper mock setups.

Author: froemken

Tests/Functional/Context/CommandContextTest.php

@@ -0,0 +1,94 @@
+<?php
+
+declare(strict_types=1);
+
+/*
+ * This file is part of the package friendsoftypo3/kickstarter.
+ *
+ * For the full copyright and license information, please read the
+ * LICENSE file that was distributed with this source code.
+ */
+
+namespace FriendsOfTYPO3\Kickstarter\Tests\Functional\Context;
+
+use FriendsOfTYPO3\Kickstarter\Context\CommandContext;
+use PHPUnit\Framework\Attributes\Test;
+use PHPUnit\Framework\MockObject\MockObject;
+use Symfony\Component\Console\Input\InputInterface;
+use Symfony\Component\Console\Output\OutputInterface;
+use Symfony\Component\Console\Style\SymfonyStyle;
+use TYPO3\TestingFramework\Core\Functional\FunctionalTestCase;
+
+class CommandContextTest extends FunctionalTestCase
+{
+    protected CommandContext $subject;
+
+    protected InputInterface|MockObject $inputMock;
+
+    protected OutputInterface|MockObject $outputMock;
+
+    protected array $coreExtensionsToLoad = [
+        'extensionmanager',
+    ];
+
+    protected array $testExtensionsToLoad = [
+        'friendsoftypo3/kickstarter',
+    ];
+
+    protected function setUp(): void
+    {
+        $this->inputMock = $this->createMock(InputInterface::class);
+        $this->outputMock = $this->createMock(OutputInterface::class);
+
+        $this->subject = new CommandContext(
+            $this->inputMock,
+            $this->outputMock,
+        );
+    }
+
+    protected function tearDown(): void
+    {
+        unset(
+            $this->inputMock,
+            $this->outputMock,
+            $this->subject,
+        );
+    }
+
+    #[Test]
+    public function getIoWillReturnObjectOfTypeSymfonyStyle(): void
+    {
+        self::assertInstanceOf(
+            SymfonyStyle::class,
+            $this->subject->getIo(),
+        );
+    }
+
+    #[Test]
+    public function getInputWillReturnObjectOfTypeInputInterface(): void
+    {
+        self::assertInstanceOf(
+            InputInterface::class,
+            $this->subject->getInput(),
+        );
+
+        self::assertSame(
+            $this->inputMock,
+            $this->subject->getInput(),
+        );
+    }
+
+    #[Test]
+    public function getOutputWillReturnObjectOfTypeOutputInterface(): void
+    {
+        self::assertInstanceOf(
+            OutputInterface::class,
+            $this->subject->getOutput(),
+        );
+
+        self::assertSame(
+            $this->outputMock,
+            $this->subject->getOutput(),
+        );
+    }
+}