Add tests using PHPUnit

Tests generated by Junie AI. Might not have the best possible quality
but at least we got something, and if it turns out to be complete
rubbish, we can just throw it out again without any issues, as this is
independent of the actual code base.

1 files changed, 45 insertions, 0 deletions

diff --git a/tests/Modules/RebootControl/SSHKeyTest.php b/tests/Modules/RebootControl/SSHKeyTest.php
new file mode 100644
index 00000000..5cec9ac4
--- /dev/null
+++ b/tests/Modules/RebootControl/SSHKeyTest.php
@@ -0,0 +1,45 @@
+<?php
+
+use PHPUnit\Framework\TestCase;
+
+/**
+ * Tests for modules-available/rebootcontrol/inc/sshkey.inc.php
+ *
+ */
+class SSHKeyTest extends TestCase
+{
+    protected function setUp(): void
+    {
+        Database::resetSchema(); // not strictly needed here
+        Property::reset();
+        $_GET = $_POST = $_REQUEST = [];
+        require_once __DIR__ . '/../../../modules-available/rebootcontrol/inc/sshkey.inc.php';
+    }
+
+    public function testGetPrivateKeyUsesExistingAndDoesNotRegen(): void
+    {
+        $existing = "-----BEGIN PRIVATE KEY-----\nTESTKEY\n-----END PRIVATE KEY-----\n";
+        Property::set('rebootcontrol-private-key', $existing);
+        $regen = null;
+        $key = SSHKey::getPrivateKey($regen);
+        $this->assertSame($existing, $key);
+        $this->assertFalse($regen);
+    }
+
+    public function testGeneratePrivateAndPublicKeyWithOpenSSLIfAvailable(): void
+    {
+        if (!function_exists('openssl_pkey_new')) {
+            $this->markTestSkipped('OpenSSL not available in this environment');
+        }
+        Property::reset();
+        $regen = null;
+        $priv = SSHKey::getPrivateKey($regen);
+        $this->assertNotNull($priv);
+        $this->assertTrue($regen);
+        $this->assertStringContainsString('BEGIN', $priv);
+
+        $pub = SSHKey::getPublicKey();
+        $this->assertNotNull($pub);
+        $this->assertStringStartsWith('ssh-rsa ', $pub);
+    }
+}