From 2a9507b42617016dc1ef71a29dca780b393fd7f3 Mon Sep 17 00:00:00 2001
From: =?UTF-8?q?Maur=C3=ADcio=20Meneghini=20Fauth?= <mauricio@mfauth.net>
Date: Tue, 3 Feb 2026 19:41:29 -0300
Subject: [PATCH] Add some unit tests for Providers\ServerVariables classes
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Signed-off-by: Maurício Meneghini Fauth <mauricio@mfauth.net>
---
 .../ServerVariablesProviderTest.php           | 22 +++++++++++++++++++
 .../ServerVariables/VoidProviderTest.php      | 22 +++++++++++++++++++
 2 files changed, 44 insertions(+)
 create mode 100644 tests/unit/Providers/ServerVariables/ServerVariablesProviderTest.php
 create mode 100644 tests/unit/Providers/ServerVariables/VoidProviderTest.php

diff --git a/tests/unit/Providers/ServerVariables/ServerVariablesProviderTest.php b/tests/unit/Providers/ServerVariables/ServerVariablesProviderTest.php
new file mode 100644
index 0000000000..bf806b86ee
--- /dev/null
+++ b/tests/unit/Providers/ServerVariables/ServerVariablesProviderTest.php
@@ -0,0 +1,22 @@
+<?php
+
+declare(strict_types=1);
+
+namespace PhpMyAdmin\Tests\Providers\ServerVariables;
+
+use PhpMyAdmin\Providers\ServerVariables\ServerVariablesProvider;
+use PHPUnit\Framework\Attributes\CoversClass;
+use PHPUnit\Framework\TestCase;
+use ReflectionProperty;
+
+#[CoversClass(ServerVariablesProvider::class)]
+final class ServerVariablesProviderTest extends TestCase
+{
+    public function testUniqueness(): void
+    {
+        (new ReflectionProperty(ServerVariablesProvider::class, 'instance'))->setValue(null, null);
+        $instanceOne = ServerVariablesProvider::getImplementation();
+        $instanceTwo = ServerVariablesProvider::getImplementation();
+        self::assertSame($instanceOne, $instanceTwo);
+    }
+}
diff --git a/tests/unit/Providers/ServerVariables/VoidProviderTest.php b/tests/unit/Providers/ServerVariables/VoidProviderTest.php
new file mode 100644
index 0000000000..715f1f7b6d
--- /dev/null
+++ b/tests/unit/Providers/ServerVariables/VoidProviderTest.php
@@ -0,0 +1,22 @@
+<?php
+
+declare(strict_types=1);
+
+namespace PhpMyAdmin\Tests\Providers\ServerVariables;
+
+use PhpMyAdmin\Providers\ServerVariables\VoidProvider;
+use PHPUnit\Framework\Attributes\CoversClass;
+use PHPUnit\Framework\TestCase;
+
+#[CoversClass(VoidProvider::class)]
+final class VoidProviderTest extends TestCase
+{
+    public function testVoidProvider(): void
+    {
+        $provider = new VoidProvider();
+        self::assertNull($provider->getVariableType('test'));
+        self::assertSame([], $provider->getStaticVariables());
+        self::assertNull($provider->getDocLinkByNameMariaDb('test'));
+        self::assertNull($provider->getDocLinkByNameMysql('test'));
+    }
+}