feature #18781 [Console] Display errors in quiet mode (multi-io)

This PR was squashed before being merged into the 3.2-dev branch (closes #18781).

Discussion
----------

[Console] Display errors in quiet mode

| Q             | A
| ------------- | ---
| Branch?       | 2.8
| Bug fix?      | yes
| New feature?  | no
| BC breaks?    | no
| Deprecations? | no
| Tests pass?   | yes
| Fixed tickets | #18767
| License       | MIT
| Doc PR        |

- map VERBOSITY_QUIET normally, rather than suppressing all output
  without override

- ensure that we do write to the output if we've determined (via
  verbosityLevelMap) that we should

About the second point, it seems ConsoleLogger has the same issue (https://github.com/symfony/symfony/blob/2.8/src/Symfony/Component/Console/Logger/ConsoleLogger.php#L92), but since we're not using that, I haven't checked it.

Commits
-------

278c26f [Console] Display errors in quiet mode

src/Symfony/Bridge/Monolog/Handler/ConsoleHandler.php

@@ -49,6 +49,7 @@ class ConsoleHandler extends AbstractProcessingHandler implements EventSubscribe
      * @var array
      */
     private $verbosityLevelMap = array(
+        OutputInterface::VERBOSITY_QUIET => Logger::ERROR,
         OutputInterface::VERBOSITY_NORMAL => Logger::WARNING,
         OutputInterface::VERBOSITY_VERBOSE => Logger::NOTICE,
         OutputInterface::VERBOSITY_VERY_VERBOSE => Logger::INFO,
@@ -154,7 +155,8 @@ public static function getSubscribedEvents()
      */
     protected function write(array $record)
     {
-        $this->output->write((string) $record['formatted']);
+        // at this point we've determined for sure that we want to output the record, so use the output's own verbosity
+        $this->output->write((string) $record['formatted'], false, $this->output->getVerbosity());
     }
 
     /**
@@ -172,10 +174,11 @@ protected function getDefaultFormatter()
      */
     private function updateLevel()
     {
-        if (null === $this->output || OutputInterface::VERBOSITY_QUIET === $verbosity = $this->output->getVerbosity()) {
+        if (null === $this->output) {
             return false;
         }
 
+        $verbosity = $this->output->getVerbosity();
         if (isset($this->verbosityLevelMap[$verbosity])) {
             $this->setLevel($this->verbosityLevelMap[$verbosity]);
         } else {

src/Symfony/Bridge/Monolog/Tests/Handler/ConsoleHandlerTest.php

@@ -55,12 +55,35 @@ public function testVerbosityMapping($verbosity, $level, $isHandling, array $map
         $this->assertSame($isHandling, $handler->isHandling(array('level' => $level)),
             '->isHandling returns correct value depending on console verbosity and log level'
         );
+
+        // check that the handler actually outputs the record if it handles it
+        $levelName = Logger::getLevelName($level);
+
+        $realOutput = $this->getMock('Symfony\Component\Console\Output\Output', array('doWrite'));
+        $realOutput->setVerbosity($verbosity);
+        $realOutput
+            ->expects($isHandling ? $this->once() : $this->never())
+            ->method('doWrite')
+            ->with("[2013-05-29 16:21:54] app.$levelName: My info message  \n", false);
+        $handler = new ConsoleHandler($realOutput, true, $map);
+
+        $infoRecord = array(
+            'message' => 'My info message',
+            'context' => array(),
+            'level' => $level,
+            'level_name' => Logger::getLevelName($level),
+            'channel' => 'app',
+            'datetime' => new \DateTime('2013-05-29 16:21:54'),
+            'extra' => array(),
+        );
+        $this->assertFalse($handler->handle($infoRecord), 'The handler finished handling the log.');
     }
 
     public function provideVerbosityMappingTests()
     {
         return array(
-            array(OutputInterface::VERBOSITY_QUIET, Logger::ERROR, false),
+            array(OutputInterface::VERBOSITY_QUIET, Logger::ERROR, true),
+            array(OutputInterface::VERBOSITY_QUIET, Logger::WARNING, false),
             array(OutputInterface::VERBOSITY_NORMAL, Logger::WARNING, true),
             array(OutputInterface::VERBOSITY_NORMAL, Logger::NOTICE, false),
             array(OutputInterface::VERBOSITY_VERBOSE, Logger::NOTICE, true),

src/Symfony/Component/Console/Logger/ConsoleLogger.php

@@ -88,8 +88,10 @@ public function log($level, $message, array $context = array())
             $output = $this->output;
         }
 
+        // the if condition check isn't necessary -- it's the same one that $output will do internally anyway.
+        // We only do it for efficiency here as the message formatting is relatively expensive.
         if ($output->getVerbosity() >= $this->verbosityLevelMap[$level]) {
-            $output->writeln(sprintf('<%1$s>[%2$s] %3$s</%1$s>', $this->formatLevelMap[$level], $level, $this->interpolate($message, $context)));
+            $output->writeln(sprintf('<%1$s>[%2$s] %3$s</%1$s>', $this->formatLevelMap[$level], $level, $this->interpolate($message, $context)), $this->verbosityLevelMap[$level]);
         }
     }
 

src/Symfony/Component/Console/Tests/Logger/ConsoleLoggerTest.php

@@ -14,6 +14,7 @@
 use Psr\Log\Test\LoggerInterfaceTest;
 use Psr\Log\LogLevel;
 use Symfony\Component\Console\Logger\ConsoleLogger;
+use Symfony\Component\Console\Output\BufferedOutput;
 use Symfony\Component\Console\Tests\Fixtures\DummyOutput;
 use Symfony\Component\Console\Output\OutputInterface;
 
@@ -55,4 +56,36 @@ public function getLogs()
     {
         return $this->output->getLogs();
     }
+
+    /**
+     * @dataProvider provideOutputMappingParams
+     */
+    public function testOutputMapping($logLevel, $outputVerbosity, $isOutput, $addVerbosityLevelMap = array())
+    {
+        $out = new BufferedOutput($outputVerbosity);
+        $logger = new ConsoleLogger($out, $addVerbosityLevelMap);
+        $logger->log($logLevel, 'foo bar');
+        $logs = $out->fetch();
+        $this->assertEquals($isOutput ? "[$logLevel] foo bar\n" : '', $logs);
+    }
+
+    public function provideOutputMappingParams()
+    {
+        $quietMap = array(LogLevel::EMERGENCY => OutputInterface::VERBOSITY_QUIET);
+
+        return array(
+            array(LogLevel::EMERGENCY, OutputInterface::VERBOSITY_NORMAL, true),
+            array(LogLevel::WARNING, OutputInterface::VERBOSITY_NORMAL, true),
+            array(LogLevel::INFO, OutputInterface::VERBOSITY_NORMAL, false),
+            array(LogLevel::DEBUG, OutputInterface::VERBOSITY_NORMAL, false),
+            array(LogLevel::INFO, OutputInterface::VERBOSITY_VERBOSE, false),
+            array(LogLevel::INFO, OutputInterface::VERBOSITY_VERY_VERBOSE, true),
+            array(LogLevel::DEBUG, OutputInterface::VERBOSITY_VERY_VERBOSE, false),
+            array(LogLevel::DEBUG, OutputInterface::VERBOSITY_DEBUG, true),
+            array(LogLevel::ALERT, OutputInterface::VERBOSITY_QUIET, false),
+            array(LogLevel::EMERGENCY, OutputInterface::VERBOSITY_QUIET, false),
+            array(LogLevel::ALERT, OutputInterface::VERBOSITY_QUIET, false, $quietMap),
+            array(LogLevel::EMERGENCY, OutputInterface::VERBOSITY_QUIET, true, $quietMap),
+        );
+    }
 }