Conditional logging

 * Log condition for log level increase based on conditions. Once one of these
   conditions is met, the required log level is set to debug. This allows to
   debug specific requests, users or apps

 * Supported conditions (setting `log_condition` in `config.php`):
    - `shared_secret`: if a request parameter with the name `log_secret` is set to
                this value the condition is met
    - `users`:  if the current request is done by one of the specified users,
                this condition is met
    - `apps`:   if the log message is invoked by one of the specified apps,
                this condition is met
 * fix unit test and add app log condition test

1 files changed, 27 insertions, 3 deletions

diff --git a/tests/lib/logger.php b/tests/lib/logger.php
index 700a847917b..9a9f5be12fc 100644
--- a/tests/lib/logger.php
+++ b/tests/lib/logger.php
@@ -21,14 +21,38 @@ class Logger extends TestCase {
 		parent::setUp();
 
 		self::$logs = array();
-		$this->logger = new Log('Test\Logger');
+		$this->config = $this->getMockBuilder(
+			'\OC\SystemConfig')
+			->disableOriginalConstructor()
+			->getMock();
+		$this->logger = new Log('Test\Logger', $this->config);
 	}
 
 	public function testInterpolation() {
 		$logger = $this->logger;
-		$logger->info('{Message {nothing} {user} {foo.bar} a}', array('user' => 'Bob', 'foo.bar' => 'Bar'));
+		$logger->warning('{Message {nothing} {user} {foo.bar} a}', array('user' => 'Bob', 'foo.bar' => 'Bar'));
 
-		$expected = array('1 {Message {nothing} Bob Bar a}');
+		$expected = array('2 {Message {nothing} Bob Bar a}');
+		$this->assertEquals($expected, $this->getLogs());
+	}
+
+	public function testAppCondition() {
+		$this->config->expects($this->any())
+			->method('getValue')
+			->will(($this->returnValueMap([
+				['loglevel', \OC_Log::WARN, \OC_Log::WARN],
+				['log.condition', [], ['apps' => ['files']]]
+			])));
+		$logger = $this->logger;
+
+		$logger->info('Don\'t display info messages');
+		$logger->info('Show info messages of files app', ['app' => 'files']);
+		$logger->warning('Show warning messages of other apps');
+
+		$expected = [
+			'1 Show info messages of files app',
+			'2 Show warning messages of other apps',
+		];
 		$this->assertEquals($expected, $this->getLogs());
 	}