add precision option

Author: patinthehat

src/Commands/CheckCoverageCommand.php

@@ -29,6 +29,7 @@ protected function configure(): void
             ->addOption('require', 'r', InputOption::VALUE_REQUIRED, 'Require a minimum code coverage percentage', null)
             ->addOption('metric', 'm', InputOption::VALUE_REQUIRED, 'Use a specific metric field (element, statement, or method)')
             ->addOption('coverage-only', 'C', InputOption::VALUE_NONE, 'Display only the code coverage percentage')
+            ->addOption('precision', 'p', InputOption::VALUE_REQUIRED, 'Precision to use when rounding the code coverage percentage', 4)
             ->setDescription('Checks a clover-format coverage file for a minimum coverage percentage and optionally enforces it.');
     }
 

src/Configuration/Configuration.php

@@ -19,13 +19,17 @@ class Configuration
     /** @var string */
     public $metricField;
 
-    public function __construct(string $filename, bool $requireMode, $required, bool $displayCoverageOnly, string $metricField)
+    /** @var int */
+    public $precision;
+
+    public function __construct(string $filename, bool $requireMode, $required, bool $displayCoverageOnly, string $metricField, int $precision)
     {
         $this->filename = $filename;
         $this->required = $required;
         $this->requireMode = $requireMode;
         $this->displayCoverageOnly = $displayCoverageOnly;
         $this->metricField = rtrim(strtolower($metricField), 's');
+        $this->precision = $precision;
     }
 
     public function validate(): void

src/Configuration/ConfigurationFactory.php

@@ -12,12 +12,13 @@ public static function create(InputInterface $input): Configuration
         $requireMode = $input->hasOption('require') && $input->getOption('require') !== null;
         $percentage = $requireMode ? (float)$input->getOption('require') : null;
         $displayCoverageOnly = $input->hasOption('coverage-only') && $input->getOption('coverage-only') === true;
+        $precision = $input->hasOption('precision') ? (int)$input->getOption('precision') : 4;
         $metricField = 'element';
 
         if ($input->hasOption('metric') && $input->getOption('metric') !== null) {
             $metricField = $input->getOption('metric');
         }
 
-        return new Configuration($filename, $requireMode, $percentage, $displayCoverageOnly, $metricField);
+        return new Configuration($filename, $requireMode, $percentage, $displayCoverageOnly, $metricField, $precision);
     }
 }

src/CoverageChecker.php

@@ -39,7 +39,7 @@ public function getCoveragePercent(): float
         $totalElements = $this->getMetricFieldSum($metrics, $totalName);
         $checkedElements = $this->getMetricFieldSum($metrics, $coveredName);
 
-        return round(($checkedElements / $totalElements) * 100, 4);
+        return round(($checkedElements / $totalElements) * 100, $this->config->precision);
     }
 
     public function check(float $minPercentage): bool