fix bug that bytesLeft() returned void when created with filename but…

… no compression prefix

CHANGELOG.md

@@ -13,7 +13,8 @@
 
   ### Other changes
 
-    * fixed `stubbles\streams\InputStreamIterator` swalling the last line
+ * fixed `stubbles\streams\InputStreamIterator` swalling the last line
+ * fixed `stubbles\streams\file\FileInputStream::bytesLeft()` returning void when created with filename but not prefixed with _compress.*://_
 
 
 7.0.0 (2016-01-11)

src/main/php/file/FileInputStream.php

@@ -110,6 +110,8 @@ protected function getResourceLength(): int
         } elseif (substr($this->fileName, 0, 17) === 'compress.bzip2://') {
             return filesize(substr($this->fileName, 17));
         }
+
+        return parent::getResourceLength();
     }
 
     /**

src/test/php/file/FileInputStreamTest.php

@@ -118,6 +118,46 @@ public function castFromAnythingElseThrowsInvalidArgumentException()
                 ->throws(\InvalidArgumentException::class);
     }
 
+    /**
+     * @test
+     * @since  8.0.0
+     */
+    public function reportsBytesLeft()
+    {
+        $fileInputStream = new FileInputStream(vfsStream::url('home/test.txt'));
+        assert($fileInputStream->bytesLeft(), equals(3));
+    }
+
+    /**
+     * @test
+     * @since  8.0.0
+     */
+    public function reportsBytesLeftWhenConstructedWithResource()
+    {
+        $fileInputStream = new FileInputStream(fopen(vfsStream::url('home/test.txt'), 'rb'));
+        assert($fileInputStream->bytesLeft(), equals(3));
+    }
+
+    /**
+     * @test
+     * @since  8.0.0
+     */
+    public function reportsBytesLeftForGzCompressedFilesBasedOnFilesize()
+    {
+        $fileInputStream = new FileInputStream('compress.zlib://' . __DIR__ . '/../../resources/file.gz');
+        assert($fileInputStream->bytesLeft(), equals(37));
+    }
+
+    /**
+     * @test
+     * @since  8.0.0
+     */
+    public function reportsBytesLeftForBzCompressedFilesBasedOnFilesize()
+    {
+        $fileInputStream = new FileInputStream('compress.bzip2://' . __DIR__ . '/../../resources/file.bz2');
+        assert($fileInputStream->bytesLeft(), equals(46));
+    }
+
     /**
      * @test
      */