Added tests for SystemLanguagesToServiceRector

tests/Rector/SystemLanguagesToServiceRector/SystemLanguagesToServiceRectorTest.php

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+<?php
+
+declare(strict_types=1);
+
+namespace Contao\Rector\Tests\Rector\SystemLanguagesToServiceRector;
+
+use Iterator;
+use PHPUnit\Framework\Attributes\DataProvider;
+use Rector\Testing\PHPUnit\AbstractRectorTestCase;
+
+final class SystemLanguagesToServiceRectorTest extends AbstractRectorTestCase
+{
+    #[DataProvider('provideData')]
+    public function test(string $filePath): void
+    {
+        $this->doTestFile($filePath);
+    }
+
+    public static function provideData(): Iterator
+    {
+        return self::yieldFilesFromDirectory(__DIR__ . '/fixture');
+    }
+
+    public function provideConfigFilePath(): string
+    {
+        return __DIR__ . '/config/config.php';
+    }
+}

tests/Rector/SystemLanguagesToServiceRector/config/config.php

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+<?php
+
+declare(strict_types=1);
+
+use Contao\Rector\Rector\SystemLanguagesToServiceRector;
+use Rector\Config\RectorConfig;
+
+return static function (RectorConfig $rectorConfig): void {
+    $rectorConfig->rule(SystemLanguagesToServiceRector::class);
+};

tests/Rector/SystemLanguagesToServiceRector/fixture/basic.php.inc

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+<?php
+
+class Foo
+{
+    public function bar()
+    {
+        $languages = \Contao\System::getLanguages();
+    }
+}
+?>
+-----
+<?php
+
+class Foo
+{
+    public function bar()
+    {
+        $languages = \Contao\System::getContainer()->get('contao.intl.locales')->getLocales(null, true);
+    }
+}
+?>

tests/Rector/SystemLanguagesToServiceRector/fixture/dca.php.inc

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+<?php
+
+class Foo
+{
+    public function bar()
+    {
+        $GLOBALS['TL_DCA']['tl_foo']['fields']['languages'] = [
+            'label' => &$GLOBALS['TL_LANG']['MSC']['geoip_countries'],
+            'exclude' => true,
+            'inputType' => 'select',
+            'options_callback' => static fn () => \Contao\System::getLanguages(),
+            'eval' => ['includeBlankOption' => true, 'mandatory' => true, 'multiple' => true, 'chosen' => true, 'csv' => ',', 'tl_class' => 'w50',],
+            'sql' => ['type' => 'string', 'length' => 255, 'default' => ''],
+        ];
+    }
+}
+?>
+-----
+<?php
+
+class Foo
+{
+    public function bar()
+    {
+        $GLOBALS['TL_DCA']['tl_foo']['fields']['languages'] = [
+            'label' => &$GLOBALS['TL_LANG']['MSC']['geoip_countries'],
+            'exclude' => true,
+            'inputType' => 'select',
+            'options_callback' => static fn () => \Contao\System::getContainer()->get('contao.intl.locales')->getLocales(null, true),
+            'eval' => ['includeBlankOption' => true, 'mandatory' => true, 'multiple' => true, 'chosen' => true, 'csv' => ',', 'tl_class' => 'w50',],
+            'sql' => ['type' => 'string', 'length' => 255, 'default' => ''],
+        ];
+    }
+}
+?>

tests/Rector/SystemLanguagesToServiceRector/fixture/installed_only.php.inc

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+<?php
+
+class Foo
+{
+    public function bar()
+    {
+        $languages = \Contao\System::getLanguages(true);
+    }
+}
+?>
+-----
+<?php
+
+class Foo
+{
+    public function bar()
+    {
+        $languages = \Contao\System::getContainer()->get('contao.intl.locales')->getEnabledLocales(null, true);
+    }
+}
+?>