Merge pull request php-debugbar#246 from darwish/format-negative-bytes

Added support for negative numbers in DataFormatter::formatBytes()

Author: barryvdh

src/DebugBar/DataFormatter/DataFormatter.php

@@ -70,8 +70,12 @@ public function formatBytes($size, $precision = 2)
         if ($size === 0 || $size === null) {
             return "0B";
         }
+
+        $sign = $size < 0 ? '-' : '';
+        $size = abs($size);
+
         $base = log($size) / log(1024);
         $suffixes = array('B', 'KB', 'MB', 'GB', 'TB');
-        return round(pow(1024, $base - floor($base)), $precision) . $suffixes[floor($base)];
+        return $sign . round(pow(1024, $base - floor($base)), $precision) . $suffixes[floor($base)];
     }
 }

tests/DebugBar/Tests/DataFormatter/DataFormatterTest.php

@@ -29,5 +29,8 @@ public function testFormatBytes()
         $this->assertEquals("1B", $f->formatBytes(1));
         $this->assertEquals("1KB", $f->formatBytes(1024));
         $this->assertEquals("1MB", $f->formatBytes(1024 * 1024));
+        $this->assertEquals("-1B", $f->formatBytes(-1));
+        $this->assertEquals("-1KB", $f->formatBytes(-1024));
+        $this->assertEquals("-1MB", $f->formatBytes(-1024 * 1024));
     }
 }