Added readme and fixed logger class name

Author: norberttech

CHANGELOG.md

@@ -0,0 +1,48 @@
+# ETL Adapter: Logger
+
+[![Minimum PHP Version](https://img.shields.io/badge/php-%3E%3D%207.4-8892BF.svg)](https://php.net/)
+
+## Description
+
+ETL Adapter that provides PSR Logger support for ETL.
+
+## Loader - PsrLogger
+
+Load each row into PsrLoggerInterface implementation.
+
+```php
+<?php
+
+$logger = new TestLogger();
+
+$loader = new PsrLoggerLoader($logger, 'row log', LogLevel::ERROR);
+
+$loader->load(new Rows(
+    Row::create(
+        new Row\Entry\IntegerEntry('id', 12345),
+        Row\Entry\StringEntry::lowercase('name', 'Norbert')
+    )
+));
+
+$this->assertTrue($logger->hasErrorRecords());
+$this->assertTrue($logger->hasError('row log'));
+```
+
+## Development
+
+In order to install dependencies please, launch following commands:
+
+```bash
+composer install
+```
+
+## Run Tests
+
+In order to execute full test suite, please launch following command:
+
+```bash
+composer build
+```
+
+It's recommended to use [pcov](https://pecl.php.net/package/pcov) for code coverage however you can also use
+xdebug by setting `XDEBUG_MODE=coverage` env variable.

README.md

@@ -18,14 +18,14 @@
   },
   "mutators": {
     "@default": true,
-    "DecrementInteger": {
+    "MethodCallRemoval": {
       "ignore": [
-        "Flow\\ETL\\Extractor\\MemoryExtractor::extract"
+        "Flow\\ETL\\Adapter\\Logger\\Logger\\DumpLogger::log"
       ]
     },
-    "IncrementInteger": {
+    "ArrayItemRemoval": {
       "ignore": [
-        "Flow\\ETL\\Extractor\\MemoryExtractor::extract"
+        "Flow\\ETL\\Adapter\\Logger\\Logger\\DumpLogger::log"
       ]
     }
   },

infection.json

@@ -8,13 +8,14 @@
 
 final class DumpLogger extends AbstractLogger
 {
-    public function log($level, $message, array $context = array())
+    public function log($level, $message, array $context = []) : void
     {
         if (\class_exists('\\Symfony\\Component\\VarDumper\\VarDumper')) {
+            /** @psalm-suppress UndefinedClass */
             \Symfony\Component\VarDumper\VarDumper::dump([$message => $context]);
         } else {
             /** @psalm-suppress ForbiddenCode */
-            var_dump([$message => $context]);
+            \var_dump([$message => $context]);
         }
     }
-}
+}

src/Flow/ETL/Adapter/Logger/Logger/DumpLogger.php

@@ -10,7 +10,7 @@
 use Psr\Log\LoggerInterface;
 use Psr\Log\LogLevel;
 
-final class PSRLoggerLoader implements Loader
+final class PsrLoggerLoader implements Loader
 {
     private LoggerInterface $logger;
 

…w/ETL/Adapter/Logger/PSRLoggerLoader.php …w/ETL/Adapter/Logger/PsrLoggerLoader.phpsrc/Flow/ETL/Adapter/Logger/PSRLoggerLoader.php renamed to src/Flow/ETL/Adapter/Logger/PsrLoggerLoader.php src/Flow/ETL/Adapter/Logger/PSRLoggerLoader.php renamed to src/Flow/ETL/Adapter/Logger/PsrLoggerLoader.php

@@ -16,9 +16,10 @@ public function test_logger() : void
         \ob_start();
         $logger->error('error', ['id' => 1]);
         $output = \ob_get_contents();
-        \ob_end_clean();;
+        \ob_end_clean();
 
-        $this->assertStringContainsString(<<<OUTPUT
+        $this->assertStringContainsString(
+            <<<'OUTPUT'
 array(1) {
   ["error"]=>
   array(1) {
@@ -30,4 +31,4 @@ public function test_logger() : void
             $output
         );
     }
-}
+}

tests/Flow/ETL/Tests/Unit/Adapter/Logger/Logger/DumpLoggerTest.php

@@ -4,20 +4,20 @@
 
 namespace Flow\ETL\Tests\Unit\Adapter\Logger;
 
-use Flow\ETL\Adapter\Logger\PSRLoggerLoader;
+use Flow\ETL\Adapter\Logger\PsrLoggerLoader;
 use Flow\ETL\Row;
 use Flow\ETL\Rows;
 use PHPUnit\Framework\TestCase;
 use Psr\Log\LogLevel;
 use Psr\Log\Test\TestLogger;
 
-final class PSRLoggerLoaderTest extends TestCase
+final class PsrLoggerLoaderTest extends TestCase
 {
     public function test_psr_logger_loader() : void
     {
         $logger = new TestLogger();
 
-        $loader = new PSRLoggerLoader($logger, 'row log', LogLevel::ERROR);
+        $loader = new PsrLoggerLoader($logger, 'row log', LogLevel::ERROR);
 
         $loader->load(new Rows(
             Row::create(