1 files changed, 181 insertions, 0 deletions
diff --git a/tests/lib/ConfigTest.php b/tests/lib/ConfigTest.php
new file mode 100644
index 00000000000..b2a52dbd6a4
--- /dev/null
+++ b/tests/lib/ConfigTest.php
@@ -0,0 +1,181 @@
+<?php
+
+/**
+ * SPDX-FileCopyrightText: 2016-2024 Nextcloud GmbH and Nextcloud contributors
+ * SPDX-FileCopyrightText: 2016 ownCloud, Inc.
+ * SPDX-License-Identifier: AGPL-3.0-or-later
+ */
+
+namespace Test;
+
+use OC\Config;
+use OCP\ITempManager;
+use OCP\Server;
+
+class ConfigTest extends TestCase {
+	public const TESTCONTENT = '<?php $CONFIG=array("foo"=>"bar", "beers" => array("Appenzeller", "Guinness", "Kölsch"), "alcohol_free" => false);';
+
+	/** @var array */
+	private $initialConfig = ['foo' => 'bar', 'beers' => ['Appenzeller', 'Guinness', 'Kölsch'], 'alcohol_free' => false];
+	/** @var string */
+	private $configFile;
+	/** @var string */
+	private $randomTmpDir;
+
+	protected function setUp(): void {
+		parent::setUp();
+
+		$this->randomTmpDir = Server::get(ITempManager::class)->getTemporaryFolder();
+		$this->configFile = $this->randomTmpDir . 'testconfig.php';
+		file_put_contents($this->configFile, self::TESTCONTENT);
+	}
+
+	protected function tearDown(): void {
+		unlink($this->configFile);
+		parent::tearDown();
+	}
+
+	private function getConfig(): Config {
+		return new Config($this->randomTmpDir, 'testconfig.php');
+	}
+
+	public function testGetKeys(): void {
+		$expectedConfig = ['foo', 'beers', 'alcohol_free'];
+		$this->assertSame($expectedConfig, $this->getConfig()->getKeys());
+	}
+
+	public function testGetKeysReturnsEnvironmentKeysIfSet() {
+		$expectedConfig = ['foo', 'beers', 'alcohol_free', 'taste'];
+		putenv('NC_taste=great');
+		$this->assertSame($expectedConfig, $this->getConfig()->getKeys());
+		putenv('NC_taste');
+	}
+
+	public function testGetValue(): void {
+		$config = $this->getConfig();
+		$this->assertSame('bar', $config->getValue('foo'));
+		$this->assertSame(null, $config->getValue('bar'));
+		$this->assertSame('moo', $config->getValue('bar', 'moo'));
+		$this->assertSame(false, $config->getValue('alcohol_free', 'someBogusValue'));
+		$this->assertSame(['Appenzeller', 'Guinness', 'Kölsch'], $config->getValue('beers', 'someBogusValue'));
+		$this->assertSame(['Appenzeller', 'Guinness', 'Kölsch'], $config->getValue('beers'));
+	}
+
+	public function testGetValueReturnsEnvironmentValueIfSet(): void {
+		$config = $this->getConfig();
+		$this->assertEquals('bar', $config->getValue('foo'));
+
+		putenv('NC_foo=baz');
+		$config = $this->getConfig();
+		$this->assertEquals('baz', $config->getValue('foo'));
+		putenv('NC_foo'); // unset the env variable
+	}
+
+	public function testGetValueReturnsEnvironmentValueIfSetToZero(): void {
+		$config = $this->getConfig();
+		$this->assertEquals('bar', $config->getValue('foo'));
+
+		putenv('NC_foo=0');
+		$config = $this->getConfig();
+		$this->assertEquals('0', $config->getValue('foo'));
+		putenv('NC_foo'); // unset the env variable
+	}
+
+	public function testGetValueReturnsEnvironmentValueIfSetToFalse(): void {
+		$config = $this->getConfig();
+		$this->assertEquals('bar', $config->getValue('foo'));
+
+		putenv('NC_foo=false');
+		$config = $this->getConfig();
+		$this->assertEquals('false', $config->getValue('foo'));
+		putenv('NC_foo'); // unset the env variable
+	}
+
+	public function testSetValue(): void {
+		$config = $this->getConfig();
+		$config->setValue('foo', 'moo');
+		$this->assertSame('moo', $config->getValue('foo'));
+
+		$content = file_get_contents($this->configFile);
+		$expected = "<?php\n\$CONFIG = array (\n  'foo' => 'moo',\n  'beers' => \n  array (\n    0 => 'Appenzeller',\n  "
+			. "  1 => 'Guinness',\n    2 => 'Kölsch',\n  ),\n  'alcohol_free' => false,\n);\n";
+		$this->assertEquals($expected, $content);
+
+		$config->setValue('bar', 'red');
+		$config->setValue('apps', ['files', 'gallery']);
+		$this->assertSame('red', $config->getValue('bar'));
+		$this->assertSame(['files', 'gallery'], $config->getValue('apps'));
+
+		$content = file_get_contents($this->configFile);
+
+		$expected = "<?php\n\$CONFIG = array (\n  'foo' => 'moo',\n  'beers' => \n  array (\n    0 => 'Appenzeller',\n  "
+			. "  1 => 'Guinness',\n    2 => 'Kölsch',\n  ),\n  'alcohol_free' => false,\n  'bar' => 'red',\n  'apps' => \n "
+			. " array (\n    0 => 'files',\n    1 => 'gallery',\n  ),\n);\n";
+		$this->assertEquals($expected, $content);
+	}
+
+	public function testSetValues(): void {
+		$config = $this->getConfig();
+		$content = file_get_contents($this->configFile);
+		$this->assertEquals(self::TESTCONTENT, $content);
+
+		// Changing configs to existing values and deleting non-existing once
+		// should not rewrite the config.php
+		$config->setValues([
+			'foo' => 'bar',
+			'not_exists' => null,
+		]);
+
+		$this->assertSame('bar', $config->getValue('foo'));
+		$this->assertSame(null, $config->getValue('not_exists'));
+		$content = file_get_contents($this->configFile);
+		$this->assertEquals(self::TESTCONTENT, $content);
+
+		$config->setValues([
+			'foo' => 'moo',
+			'alcohol_free' => null,
+		]);
+		$this->assertSame('moo', $config->getValue('foo'));
+		$this->assertSame(null, $config->getValue('not_exists'));
+
+		$content = file_get_contents($this->configFile);
+		$expected = "<?php\n\$CONFIG = array (\n  'foo' => 'moo',\n  'beers' => \n  array (\n    0 => 'Appenzeller',\n  "
+			. "  1 => 'Guinness',\n    2 => 'Kölsch',\n  ),\n);\n";
+		$this->assertEquals($expected, $content);
+	}
+
+	public function testDeleteKey(): void {
+		$config = $this->getConfig();
+		$config->deleteKey('foo');
+		$this->assertSame('this_was_clearly_not_set_before', $config->getValue('foo', 'this_was_clearly_not_set_before'));
+		$content = file_get_contents($this->configFile);
+
+		$expected = "<?php\n\$CONFIG = array (\n  'beers' => \n  array (\n    0 => 'Appenzeller',\n  "
+			. "  1 => 'Guinness',\n    2 => 'Kölsch',\n  ),\n  'alcohol_free' => false,\n);\n";
+		$this->assertEquals($expected, $content);
+	}
+
+	public function testConfigMerge(): void {
+		// Create additional config
+		$additionalConfig = '<?php $CONFIG=array("php53"=>"totallyOutdated");';
+		$additionalConfigPath = $this->randomTmpDir . 'additionalConfig.testconfig.php';
+		file_put_contents($additionalConfigPath, $additionalConfig);
+
+		// Reinstantiate the config to force a read-in of the additional configs
+		$config = new Config($this->randomTmpDir, 'testconfig.php');
+
+		// Ensure that the config value can be read and the config has not been modified
+		$this->assertSame('totallyOutdated', $config->getValue('php53', 'bogusValue'));
+		$this->assertEquals(self::TESTCONTENT, file_get_contents($this->configFile));
+
+		// Write a new value to the config
+		$config->setValue('CoolWebsites', ['demo.owncloud.org', 'owncloud.org', 'owncloud.com']);
+		$expected = "<?php\n\$CONFIG = array (\n  'foo' => 'bar',\n  'beers' => \n  array (\n    0 => 'Appenzeller',\n  "
+			. "  1 => 'Guinness',\n    2 => 'Kölsch',\n  ),\n  'alcohol_free' => false,\n  'php53' => 'totallyOutdated',\n  'CoolWebsites' => \n  array (\n  "
+			. "  0 => 'demo.owncloud.org',\n    1 => 'owncloud.org',\n    2 => 'owncloud.com',\n  ),\n);\n";
+		$this->assertEquals($expected, file_get_contents($this->configFile));
+
+		// Cleanup
+		unlink($additionalConfigPath);
+	}
+}