diff --git a/core/command/config/app/deleteconfig.php b/core/command/config/app/deleteconfig.php
new file mode 100644
index 0000000000..0031142358
--- /dev/null
+++ b/core/command/config/app/deleteconfig.php
@@ -0,0 +1,81 @@
+<?php
+/**
+ * @author Joas Schilling <nickvergessen@owncloud.com>
+ *
+ * @copyright Copyright (c) 2015, ownCloud, Inc.
+ * @license AGPL-3.0
+ *
+ * This code is free software: you can redistribute it and/or modify
+ * it under the terms of the GNU Affero General Public License, version 3,
+ * as published by the Free Software Foundation.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
+ * GNU Affero General Public License for more details.
+ *
+ * You should have received a copy of the GNU Affero General Public License, version 3,
+ * along with this program.  If not, see <http://www.gnu.org/licenses/>
+ *
+ */
+
+namespace OC\Core\Command\Config\App;
+
+use OC\Core\Command\Base;
+use OCP\IConfig;
+use Symfony\Component\Console\Input\InputArgument;
+use Symfony\Component\Console\Input\InputInterface;
+use Symfony\Component\Console\Input\InputOption;
+use Symfony\Component\Console\Output\OutputInterface;
+
+class DeleteConfig extends Base {
+	/** * @var IConfig */
+	protected $config;
+
+	/**
+	 * @param IConfig $config
+	 */
+	public function __construct(IConfig $config) {
+		parent::__construct();
+		$this->config = $config;
+	}
+
+	protected function configure() {
+		parent::configure();
+
+		$this
+			->setName('config:app:delete')
+			->setDescription('Delete an app config value')
+			->addArgument(
+				'app',
+				InputArgument::REQUIRED,
+				'Name of the app'
+			)
+			->addArgument(
+				'name',
+				InputArgument::REQUIRED,
+				'Name of the config to delete'
+			)
+			->addOption(
+				'error-if-not-exists',
+				null,
+				InputOption::VALUE_NONE,
+				'Checks whether the config exists before deleting it'
+			)
+		;
+	}
+
+	protected function execute(InputInterface $input, OutputInterface $output) {
+		$appName = $input->getArgument('app');
+		$configName = $input->getArgument('name');
+
+		if ($input->hasParameterOption('--error-if-not-exists') && !in_array($configName, $this->config->getAppKeys($appName))) {
+			$output->writeln('<error>Config ' . $configName . ' could not be deleted because it did not exist</error>');
+			return 1;
+		}
+
+		$this->config->deleteAppValue($appName, $configName);
+		$output->writeln('<info>System config value ' . $configName . ' deleted</info>');
+		return 0;
+	}
+}
diff --git a/core/command/config/app/getconfig.php b/core/command/config/app/getconfig.php
new file mode 100644
index 0000000000..08b263627e
--- /dev/null
+++ b/core/command/config/app/getconfig.php
@@ -0,0 +1,93 @@
+<?php
+/**
+ * @author Joas Schilling <nickvergessen@owncloud.com>
+ *
+ * @copyright Copyright (c) 2015, ownCloud, Inc.
+ * @license AGPL-3.0
+ *
+ * This code is free software: you can redistribute it and/or modify
+ * it under the terms of the GNU Affero General Public License, version 3,
+ * as published by the Free Software Foundation.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
+ * GNU Affero General Public License for more details.
+ *
+ * You should have received a copy of the GNU Affero General Public License, version 3,
+ * along with this program.  If not, see <http://www.gnu.org/licenses/>
+ *
+ */
+
+namespace OC\Core\Command\Config\App;
+
+use OC\Core\Command\Base;
+use OCP\IConfig;
+use Symfony\Component\Console\Input\InputArgument;
+use Symfony\Component\Console\Input\InputInterface;
+use Symfony\Component\Console\Input\InputOption;
+use Symfony\Component\Console\Output\OutputInterface;
+
+class GetConfig extends Base {
+	/** * @var IConfig */
+	protected $config;
+
+	/**
+	 * @param IConfig $config
+	 */
+	public function __construct(IConfig $config) {
+		parent::__construct();
+		$this->config = $config;
+	}
+
+	protected function configure() {
+		parent::configure();
+
+		$this
+			->setName('config:app:get')
+			->setDescription('Set an app config value')
+			->addArgument(
+				'app',
+				InputArgument::REQUIRED,
+				'Name of the app'
+			)
+			->addArgument(
+				'name',
+				InputArgument::REQUIRED,
+				'Name of the config to get'
+			)
+			->addOption(
+				'default-value',
+				null,
+				InputOption::VALUE_OPTIONAL,
+				'If no default value is set and the config does not exist, the command will exit with 1'
+			)
+		;
+	}
+
+	/**
+	 * Executes the current command.
+	 *
+	 * @param InputInterface  $input  An InputInterface instance
+	 * @param OutputInterface $output An OutputInterface instance
+	 * @return null|int null or 0 if everything went fine, or an error code
+	 */
+	protected function execute(InputInterface $input, OutputInterface $output) {
+		$appName = $input->getArgument('app');
+		$configName = $input->getArgument('name');
+		$defaultValue = $input->getOption('default-value');
+
+		if (!in_array($configName, $this->config->getAppKeys($appName)) && !$input->hasParameterOption('--default-value')) {
+			return 1;
+		}
+
+		if (!in_array($configName, $this->config->getAppKeys($appName))) {
+			$configValue = $defaultValue;
+		} else {
+			$configValue = $this->config->getAppValue($appName, $configName);
+		}
+
+		$this->writeMixedInOutputFormat($input, $output, $configValue);
+		return 0;
+	}
+}
diff --git a/core/command/config/app/setconfig.php b/core/command/config/app/setconfig.php
new file mode 100644
index 0000000000..91775094fd
--- /dev/null
+++ b/core/command/config/app/setconfig.php
@@ -0,0 +1,89 @@
+<?php
+/**
+ * @author Joas Schilling <nickvergessen@owncloud.com>
+ *
+ * @copyright Copyright (c) 2015, ownCloud, Inc.
+ * @license AGPL-3.0
+ *
+ * This code is free software: you can redistribute it and/or modify
+ * it under the terms of the GNU Affero General Public License, version 3,
+ * as published by the Free Software Foundation.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
+ * GNU Affero General Public License for more details.
+ *
+ * You should have received a copy of the GNU Affero General Public License, version 3,
+ * along with this program.  If not, see <http://www.gnu.org/licenses/>
+ *
+ */
+
+namespace OC\Core\Command\Config\App;
+
+use OC\Core\Command\Base;
+use OCP\IConfig;
+use Symfony\Component\Console\Input\InputArgument;
+use Symfony\Component\Console\Input\InputInterface;
+use Symfony\Component\Console\Input\InputOption;
+use Symfony\Component\Console\Output\OutputInterface;
+
+class SetConfig extends Base {
+	/** * @var IConfig */
+	protected $config;
+
+	/**
+	 * @param IConfig $config
+	 */
+	public function __construct(IConfig $config) {
+		parent::__construct();
+		$this->config = $config;
+	}
+
+	protected function configure() {
+		parent::configure();
+
+		$this
+			->setName('config:app:set')
+			->setDescription('Set an app config value')
+			->addArgument(
+				'app',
+				InputArgument::REQUIRED,
+				'Name of the app'
+			)
+			->addArgument(
+				'name',
+				InputArgument::REQUIRED,
+				'Name of the config to set'
+			)
+			->addOption(
+				'value',
+				null,
+				InputOption::VALUE_REQUIRED,
+				'The new value of the config'
+			)
+			->addOption(
+				'update-only',
+				null,
+				InputOption::VALUE_NONE,
+				'Only updates the value, if it is not set before, it is not being added'
+			)
+		;
+	}
+
+	protected function execute(InputInterface $input, OutputInterface $output) {
+		$appName = $input->getArgument('app');
+		$configName = $input->getArgument('name');
+
+		if (!in_array($configName, $this->config->getAppKeys($appName)) && $input->hasParameterOption('--update-only')) {
+			$output->writeln('<comment>Value not updated, as it has not been set before.</comment>');
+			return 1;
+		}
+
+		$configValue = $input->getOption('value');
+		$this->config->setAppValue($appName, $configName, $configValue);
+
+		$output->writeln('<info>Config value ' . $configName . ' for app ' . $appName . ' set to ' . $configValue . '</info>');
+		return 0;
+	}
+}
diff --git a/core/command/config/system/deleteconfig.php b/core/command/config/system/deleteconfig.php
index c4930a8d3a..49bc2bc8c0 100644
--- a/core/command/config/system/deleteconfig.php
+++ b/core/command/config/system/deleteconfig.php
@@ -49,7 +49,7 @@ class DeleteConfig extends Base {
 			->addArgument(
 				'name',
 				InputArgument::REQUIRED,
-				'Name of the config to set'
+				'Name of the config to delete'
 			)
 			->addOption(
 				'error-if-not-exists',
diff --git a/core/command/config/system/getconfig.php b/core/command/config/system/getconfig.php
index 1ed3b36da3..df9b1a96ef 100644
--- a/core/command/config/system/getconfig.php
+++ b/core/command/config/system/getconfig.php
@@ -55,7 +55,7 @@ class GetConfig extends Base {
 				'default-value',
 				null,
 				InputOption::VALUE_OPTIONAL,
-				'If no default value is set and the config does not exist, an error is thrown'
+				'If no default value is set and the config does not exist, the command will exit with 1'
 			)
 		;
 	}
diff --git a/core/command/config/system/setconfig.php b/core/command/config/system/setconfig.php
index 6eda9db8f9..cb2f9fe616 100644
--- a/core/command/config/system/setconfig.php
+++ b/core/command/config/system/setconfig.php
@@ -70,7 +70,7 @@ class SetConfig extends Base {
 		$configName = $input->getArgument('name');
 
 		if (!in_array($configName, $this->systemConfig->getKeys()) && $input->hasParameterOption('--update-only')) {
-			$output->writeln('<comment>Value has not been updated, as it has not been set before.</comment>');
+			$output->writeln('<comment>Value not updated, as it has not been set before.</comment>');
 			return 1;
 		}
 		$configValue = $input->getOption('value');
diff --git a/core/register_command.php b/core/register_command.php
index 2f057ed56a..8815eca6b6 100644
--- a/core/register_command.php
+++ b/core/register_command.php
@@ -40,6 +40,9 @@ if (\OC::$server->getConfig()->getSystemValue('installed', false)) {
 	$application->add(new OC\Core\Command\Background\WebCron(\OC::$server->getConfig()));
 	$application->add(new OC\Core\Command\Background\Ajax(\OC::$server->getConfig()));
 
+	$application->add(new OC\Core\Command\Config\App\DeleteConfig(\OC::$server->getConfig()));
+	$application->add(new OC\Core\Command\Config\App\GetConfig(\OC::$server->getConfig()));
+	$application->add(new OC\Core\Command\Config\App\SetConfig(\OC::$server->getConfig()));
 	$application->add(new OC\Core\Command\Config\Import(\OC::$server->getConfig()));
 	$application->add(new OC\Core\Command\Config\ListConfigs(\OC::$server->getSystemConfig(), \OC::$server->getAppConfig()));
 	$application->add(new OC\Core\Command\Config\System\DeleteConfig(\OC::$server->getSystemConfig()));
diff --git a/tests/core/command/config/app/deleteconfigtest.php b/tests/core/command/config/app/deleteconfigtest.php
new file mode 100644
index 0000000000..3f369e8f40
--- /dev/null
+++ b/tests/core/command/config/app/deleteconfigtest.php
@@ -0,0 +1,123 @@
+<?php
+/**
+ * @author Joas Schilling <nickvergessen@owncloud.com>
+ *
+ * @copyright Copyright (c) 2015, ownCloud, Inc.
+ * @license AGPL-3.0
+ *
+ * This code is free software: you can redistribute it and/or modify
+ * it under the terms of the GNU Affero General Public License, version 3,
+ * as published by the Free Software Foundation.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
+ * GNU Affero General Public License for more details.
+ *
+ * You should have received a copy of the GNU Affero General Public License, version 3,
+ * along with this program.  If not, see <http://www.gnu.org/licenses/>
+ *
+ */
+
+namespace Tests\Core\Command\Config\App;
+
+
+use OC\Core\Command\Config\App\DeleteConfig;
+use Test\TestCase;
+
+class DeleteConfigTest extends TestCase {
+	/** @var \PHPUnit_Framework_MockObject_MockObject */
+	protected $config;
+
+	/** @var \PHPUnit_Framework_MockObject_MockObject */
+	protected $consoleInput;
+	/** @var \PHPUnit_Framework_MockObject_MockObject */
+	protected $consoleOutput;
+
+	/** @var \Symfony\Component\Console\Command\Command */
+	protected $command;
+
+	protected function setUp() {
+		parent::setUp();
+
+		$config = $this->config = $this->getMockBuilder('OCP\IConfig')
+			->disableOriginalConstructor()
+			->getMock();
+		$this->consoleInput = $this->getMock('Symfony\Component\Console\Input\InputInterface');
+		$this->consoleOutput = $this->getMock('Symfony\Component\Console\Output\OutputInterface');
+
+		/** @var \OCP\IConfig $config */
+		$this->command = new DeleteConfig($config);
+	}
+
+
+	public function deleteData() {
+		return [
+			[
+				'name',
+				true,
+				true,
+				0,
+				'info',
+			],
+			[
+				'name',
+				true,
+				false,
+				0,
+				'info',
+			],
+			[
+				'name',
+				false,
+				false,
+				0,
+				'info',
+			],
+			[
+				'name',
+				false,
+				true,
+				1,
+				'error',
+			],
+		];
+	}
+
+	/**
+	 * @dataProvider deleteData
+	 *
+	 * @param string $configName
+	 * @param bool $configExists
+	 * @param bool $checkIfExists
+	 * @param int $expectedReturn
+	 * @param string $expectedMessage
+	 */
+	public function testDelete($configName, $configExists, $checkIfExists, $expectedReturn, $expectedMessage) {
+		$this->config->expects(($checkIfExists) ? $this->once() : $this->never())
+			->method('getAppKeys')
+			->with('app-name')
+			->willReturn($configExists ? [$configName] : []);
+
+		$this->config->expects(($expectedReturn === 0) ? $this->once() : $this->never())
+			->method('deleteAppValue')
+			->with('app-name', $configName);
+
+		$this->consoleInput->expects($this->exactly(2))
+			->method('getArgument')
+			->willReturnMap([
+				['app', 'app-name'],
+				['name', $configName],
+			]);
+		$this->consoleInput->expects($this->any())
+			->method('hasParameterOption')
+			->with('--error-if-not-exists')
+			->willReturn($checkIfExists);
+
+		$this->consoleOutput->expects($this->any())
+			->method('writeln')
+			->with($this->stringContains($expectedMessage));
+
+		$this->assertSame($expectedReturn, \Test_Helper::invokePrivate($this->command, 'execute', [$this->consoleInput, $this->consoleOutput]));
+	}
+}
diff --git a/tests/core/command/config/app/getconfigtest.php b/tests/core/command/config/app/getconfigtest.php
new file mode 100644
index 0000000000..81d0eb7447
--- /dev/null
+++ b/tests/core/command/config/app/getconfigtest.php
@@ -0,0 +1,163 @@
+<?php
+/**
+ * @author Joas Schilling <nickvergessen@owncloud.com>
+ *
+ * @copyright Copyright (c) 2015, ownCloud, Inc.
+ * @license AGPL-3.0
+ *
+ * This code is free software: you can redistribute it and/or modify
+ * it under the terms of the GNU Affero General Public License, version 3,
+ * as published by the Free Software Foundation.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
+ * GNU Affero General Public License for more details.
+ *
+ * You should have received a copy of the GNU Affero General Public License, version 3,
+ * along with this program.  If not, see <http://www.gnu.org/licenses/>
+ *
+ */
+
+namespace Tests\Core\Command\Config\App;
+
+
+use OC\Core\Command\Config\App\GetConfig;
+use Test\TestCase;
+
+class GetConfigTest extends TestCase {
+	/** @var \PHPUnit_Framework_MockObject_MockObject */
+	protected $config;
+
+	/** @var \PHPUnit_Framework_MockObject_MockObject */
+	protected $consoleInput;
+	/** @var \PHPUnit_Framework_MockObject_MockObject */
+	protected $consoleOutput;
+
+	/** @var \Symfony\Component\Console\Command\Command */
+	protected $command;
+
+	protected function setUp() {
+		parent::setUp();
+
+		$config = $this->config = $this->getMockBuilder('OCP\IConfig')
+			->disableOriginalConstructor()
+			->getMock();
+		$this->consoleInput = $this->getMock('Symfony\Component\Console\Input\InputInterface');
+		$this->consoleOutput = $this->getMock('Symfony\Component\Console\Output\OutputInterface');
+
+		/** @var \OCP\IConfig $config */
+		$this->command = new GetConfig($config);
+	}
+
+
+	public function getData() {
+		return [
+			// String output as json
+			['name', 'newvalue', true, null, false, 'json', 0, json_encode('newvalue')],
+			// String output as plain text
+			['name', 'newvalue', true, null, false, 'plain', 0, 'newvalue'],
+			// String falling back to default output as json
+			['name', null, false, 'newvalue', true, 'json', 0, json_encode('newvalue')],
+			// String falling back without default: error
+			['name', null, false, null, false, 'json', 1, null],
+
+			// Int "0" output as json/plain
+			['name', 0, true, null, false, 'json', 0, json_encode(0)],
+			['name', 0, true, null, false, 'plain', 0, '0'],
+			// Int "1" output as json/plain
+			['name', 1, true, null, false, 'json', 0, json_encode(1)],
+			['name', 1, true, null, false, 'plain', 0, '1'],
+
+			// Bool "true" output as json/plain
+			['name', true, true, null, false, 'json', 0, json_encode(true)],
+			['name', true, true, null, false, 'plain', 0, 'true'],
+			// Bool "false" output as json/plain
+			['name', false, true, null, false, 'json', 0, json_encode(false)],
+			['name', false, true, null, false, 'plain', 0, 'false'],
+
+			// Null output as json/plain
+			['name', null, true, null, false, 'json', 0, json_encode(null)],
+			['name', null, true, null, false, 'plain', 0, 'null'],
+
+			// Array output as json/plain
+			['name', ['a', 'b'], true, null, false, 'json', 0, json_encode(['a', 'b'])],
+			['name', ['a', 'b'], true, null, false, 'plain', 0, "a\nb"],
+			// Key array output as json/plain
+			['name', [0 => 'a', 1 => 'b'], true, null, false, 'json', 0, json_encode(['a', 'b'])],
+			['name', [0 => 'a', 1 => 'b'], true, null, false, 'plain', 0, "a\nb"],
+			// Associative array output as json/plain
+			['name', ['a' => 1, 'b' => 2], true, null, false, 'json', 0, json_encode(['a' => 1, 'b' => 2])],
+			['name', ['a' => 1, 'b' => 2], true, null, false, 'plain', 0, "a: 1\nb: 2"],
+
+		];
+	}
+
+	/**
+	 * @dataProvider getData
+	 *
+	 * @param string $configName
+	 * @param mixed $value
+	 * @param bool $configExists
+	 * @param mixed $defaultValue
+	 * @param bool $hasDefault
+	 * @param string $outputFormat
+	 * @param int $expectedReturn
+	 * @param string $expectedMessage
+	 */
+	public function testGet($configName, $value, $configExists, $defaultValue, $hasDefault, $outputFormat, $expectedReturn, $expectedMessage) {
+		$this->config->expects($this->atLeastOnce())
+			->method('getAppKeys')
+			->with('app-name')
+			->willReturn($configExists ? [$configName] : []);
+
+		if (!$expectedReturn) {
+			if ($configExists) {
+				$this->config->expects($this->once())
+					->method('getAppValue')
+					->with('app-name', $configName)
+					->willReturn($value);
+			}
+		}
+
+		$this->consoleInput->expects($this->exactly(2))
+			->method('getArgument')
+			->willReturnMap([
+				['app', 'app-name'],
+				['name', $configName],
+			]);
+		$this->consoleInput->expects($this->any())
+			->method('getOption')
+			->willReturnMap([
+				['default-value', $defaultValue],
+				['output', $outputFormat],
+			]);
+		$this->consoleInput->expects($this->any())
+			->method('hasParameterOption')
+			->willReturnMap([
+				['--output', true],
+				['--default-value', $hasDefault],
+			]);
+
+		if ($expectedMessage !== null) {
+			global $output;
+
+			$output = '';
+			$this->consoleOutput->expects($this->any())
+				->method('writeln')
+				->willReturnCallback(function($value) {
+					global $output;
+					$output .= $value . "\n";
+					return $output;
+				});
+		}
+
+		$this->assertSame($expectedReturn, \Test_Helper::invokePrivate($this->command, 'execute', [$this->consoleInput, $this->consoleOutput]));
+
+		if ($expectedMessage !== null) {
+			global $output;
+			// Remove the trailing newline
+			$this->assertSame($expectedMessage, substr($output, 0, -1));
+		}
+	}
+}
diff --git a/tests/core/command/config/app/setconfigtest.php b/tests/core/command/config/app/setconfigtest.php
new file mode 100644
index 0000000000..0c4aa6850c
--- /dev/null
+++ b/tests/core/command/config/app/setconfigtest.php
@@ -0,0 +1,118 @@
+<?php
+/**
+ * @author Joas Schilling <nickvergessen@owncloud.com>
+ *
+ * @copyright Copyright (c) 2015, ownCloud, Inc.
+ * @license AGPL-3.0
+ *
+ * This code is free software: you can redistribute it and/or modify
+ * it under the terms of the GNU Affero General Public License, version 3,
+ * as published by the Free Software Foundation.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
+ * GNU Affero General Public License for more details.
+ *
+ * You should have received a copy of the GNU Affero General Public License, version 3,
+ * along with this program.  If not, see <http://www.gnu.org/licenses/>
+ *
+ */
+
+namespace Tests\Core\Command\Config\App;
+
+
+use OC\Core\Command\Config\App\SetConfig;
+use Test\TestCase;
+
+class SetConfigTest extends TestCase {
+	/** @var \PHPUnit_Framework_MockObject_MockObject */
+	protected $config;
+
+	/** @var \PHPUnit_Framework_MockObject_MockObject */
+	protected $consoleInput;
+	/** @var \PHPUnit_Framework_MockObject_MockObject */
+	protected $consoleOutput;
+
+	/** @var \Symfony\Component\Console\Command\Command */
+	protected $command;
+
+	protected function setUp() {
+		parent::setUp();
+
+		$config = $this->config = $this->getMockBuilder('OCP\IConfig')
+			->disableOriginalConstructor()
+			->getMock();
+		$this->consoleInput = $this->getMock('Symfony\Component\Console\Input\InputInterface');
+		$this->consoleOutput = $this->getMock('Symfony\Component\Console\Output\OutputInterface');
+
+		/** @var \OCP\IConfig $config */
+		$this->command = new SetConfig($config);
+	}
+
+
+	public function setData() {
+		return [
+			[
+				'name',
+				'newvalue',
+				true,
+				true,
+				true,
+				'info',
+			],
+			[
+				'name',
+				'newvalue',
+				false,
+				true,
+				false,
+				'comment',
+			],
+		];
+	}
+
+	/**
+	 * @dataProvider setData
+	 *
+	 * @param string $configName
+	 * @param mixed $newValue
+	 * @param bool $configExists
+	 * @param bool $updateOnly
+	 * @param bool $updated
+	 * @param string $expectedMessage
+	 */
+	public function testSet($configName, $newValue, $configExists, $updateOnly, $updated, $expectedMessage) {
+		$this->config->expects($this->once())
+			->method('getAppKeys')
+			->with('app-name')
+			->willReturn($configExists ? [$configName] : []);
+
+		if ($updated) {
+			$this->config->expects($this->once())
+				->method('setAppValue')
+				->with('app-name', $configName, $newValue);
+		}
+
+		$this->consoleInput->expects($this->exactly(2))
+			->method('getArgument')
+			->willReturnMap([
+				['app', 'app-name'],
+				['name', $configName],
+			]);
+		$this->consoleInput->expects($this->any())
+			->method('getOption')
+			->with('value')
+			->willReturn($newValue);
+		$this->consoleInput->expects($this->any())
+			->method('hasParameterOption')
+			->with('--update-only')
+			->willReturn($updateOnly);
+
+		$this->consoleOutput->expects($this->any())
+			->method('writeln')
+			->with($this->stringContains($expectedMessage));
+
+		\Test_Helper::invokePrivate($this->command, 'execute', [$this->consoleInput, $this->consoleOutput]);
+	}
+}