Merge pull request #187 from skeleton/issue-183

Fix line breaks on CSV reader

.gitattributes

@@ -0,0 +1,11 @@
+# Ignore all test and documentation for archive
+/tests              export-ignore
+/.editorconfig      export-ignore
+/.gitattributes     export-ignore
+/.gitignore         export-ignore
+/.scrutinizer.yml   export-ignore
+/.travis.yml        export-ignore
+/composer.lock      export-ignore
+/CONTRIBUTING.md    export-ignore
+/logo.png           export-ignore
+/phpunit.xml        export-ignore

src/Spout/Common/Helper/GlobalFunctionsHelper.php

@@ -281,32 +281,14 @@ class GlobalFunctionsHelper
     }
 
     /**
-     * Wrapper around global function stream_get_line()
+     * Wrapper around global function stream_get_wrappers()
-     * @see stream_get_line()
+     * @see stream_get_wrappers()
      *
-     * @param resource $handle
-     * @param int $length
-     * @param string|void $ending
-     * @return string|bool
-     */
-    public function stream_get_line($handle, $length, $ending = null)
-    {
-        return stream_get_line($handle, $length, $ending);
-    }
-
-    /**
-     * Wrapper around global function str_getcsv()
-     * @see str_getcsv()
-     *
-     * @param string $input
-     * @param string|void $delimiter
-     * @param string|void $enclosure
-     * @param string|void $escape
      * @return array
      */
-    public function str_getcsv($input, $delimiter = null, $enclosure = null, $escape = null)
+    public function stream_get_wrappers()
     {
-        return str_getcsv($input, $delimiter, $enclosure, $escape);
+        return stream_get_wrappers();
     }
 
     /**

src/Spout/Reader/AbstractReader.php

@@ -19,6 +19,13 @@ abstract class AbstractReader implements ReaderInterface
     /** @var \Box\Spout\Common\Helper\GlobalFunctionsHelper Helper to work with global functions */
     protected $globalFunctionsHelper;
 
+    /**
+     * Returns whether stream wrappers are supported
+     *
+     * @return bool
+     */
+    abstract protected function doesSupportStreamWrapper();
+
     /**
      * Opens the file at the given file path to make it ready to be read
      *
@@ -62,6 +69,10 @@ abstract class AbstractReader implements ReaderInterface
      */
     public function open($filePath)
     {
+        if ($this->isStreamWrapper($filePath) && (!$this->doesSupportStreamWrapper() || !$this->isSupportedStreamWrapper($filePath))) {
+            throw new IOException("Could not open $filePath for reading! Stream wrapper used is not supported for this type of file.");
+        }
+
         if (!$this->isPhpStream($filePath)) {
             // we skip the checks if the provided file path points to a PHP stream
             if (!$this->globalFunctionsHelper->file_exists($filePath)) {
@@ -72,8 +83,7 @@ abstract class AbstractReader implements ReaderInterface
         }
 
         try {
-            // Need to use realpath to fix "Can't open file" on some Windows setup
+            $fileRealPath = $this->getFileRealPath($filePath);
-            $fileRealPath = realpath($filePath);
             $this->openReader($fileRealPath);
             $this->isStreamOpened = true;
         } catch (\Exception $exception) {
@@ -81,6 +91,67 @@ abstract class AbstractReader implements ReaderInterface
         }
     }
 
+    /**
+     * Returns the real path of the given path.
+     * If the given path is a valid stream wrapper, returns the path unchanged.
+     *
+     * @param string $filePath
+     * @return string
+     */
+    protected function getFileRealPath($filePath)
+    {
+        if ($this->isSupportedStreamWrapper($filePath)) {
+            return $filePath;
+        }
+
+        // Need to use realpath to fix "Can't open file" on some Windows setup
+        return realpath($filePath);
+    }
+
+    /**
+     * Returns the scheme of the custom stream wrapper, if the path indicates a stream wrapper is used.
+     * For example, php://temp => php, s3://path/to/file => s3...
+     *
+     * @param string $filePath Path of the file to be read
+     * @return string|null The stream wrapper scheme or NULL if not a stream wrapper
+     */
+    protected function getStreamWrapperScheme($filePath)
+    {
+        $streamScheme = null;
+        if (preg_match('/^(\w+):\/\//', $filePath, $matches)) {
+            $streamScheme = $matches[1];
+        }
+        return $streamScheme;
+    }
+
+    /**
+     * Checks if the given path is an unsupported stream wrapper
+     * (like local path, php://temp, mystream://foo/bar...).
+     *
+     * @param string $filePath Path of the file to be read
+     * @return bool Whether the given path is an unsupported stream wrapper
+     */
+    protected function isStreamWrapper($filePath)
+    {
+        return ($this->getStreamWrapperScheme($filePath) !== null);
+    }
+
+    /**
+     * Checks if the given path is an supported stream wrapper
+     * (like php://temp, mystream://foo/bar...).
+     * If the given path is a local path, returns true.
+     *
+     * @param string $filePath Path of the file to be read
+     * @return bool Whether the given path is an supported stream wrapper
+     */
+    protected function isSupportedStreamWrapper($filePath)
+    {
+        $streamScheme = $this->getStreamWrapperScheme($filePath);
+        return ($streamScheme !== null) ?
+            in_array($streamScheme, $this->globalFunctionsHelper->stream_get_wrappers()) :
+            true;
+    }
+
     /**
      * Checks if a path is a PHP stream (like php://output, php://memory, ...)
      *
@@ -89,7 +160,8 @@ abstract class AbstractReader implements ReaderInterface
      */
     protected function isPhpStream($filePath)
     {
-        return (strpos($filePath, 'php://') === 0);
+        $streamScheme = $this->getStreamWrapperScheme($filePath);
+        return ($streamScheme === 'php');
     }
 
     /**

src/Spout/Reader/CSV/Reader.php

@@ -32,6 +32,9 @@ class Reader extends AbstractReader
     /** @var string Defines the End of line */
     protected $endOfLineCharacter = "\n";
 
+    /** @var string */
+    protected $autoDetectLineEndings;
+
     /**
      * Sets the field delimiter for the CSV.
      * Needs to be called before opening the reader.
@@ -84,6 +87,16 @@ class Reader extends AbstractReader
         return $this;
     }
 
+    /**
+     * Returns whether stream wrappers are supported
+     *
+     * @return bool
+     */
+    protected function doesSupportStreamWrapper()
+    {
+        return true;
+    }
+
     /**
      * Opens the file at the given path to make it ready to be read.
      * If setEncoding() was not called, it assumes that the file is encoded in UTF-8.
@@ -94,6 +107,9 @@ class Reader extends AbstractReader
      */
     protected function openReader($filePath)
     {
+        $this->autoDetectLineEndings = ini_get('auto_detect_line_endings');
+        ini_set('auto_detect_line_endings', '1');
+
         $this->filePointer = $this->globalFunctionsHelper->fopen($filePath, 'r');
         if (!$this->filePointer) {
             throw new IOException("Could not open file $filePath for reading.");
@@ -130,5 +146,7 @@ class Reader extends AbstractReader
         if ($this->filePointer) {
             $this->globalFunctionsHelper->fclose($this->filePointer);
         }
+
+        ini_set('auto_detect_line_endings', $this->autoDetectLineEndings);
     }
 }

src/Spout/Reader/CSV/RowIterator.php

@@ -14,7 +14,7 @@ use Box\Spout\Common\Helper\EncodingHelper;
 class RowIterator implements IteratorInterface
 {
     /**
-     * If no value is given to stream_get_line(), it defaults to 8192 (which may be too low).
+     * If no value is given to fgetcsv(), it defaults to 8192 (which may be too low).
      * Alignement with other functions like fgets() is discussed here: https://bugs.php.net/bug.php?id=48421
      */
     const MAX_READ_BYTES_PER_LINE = 32768;
@@ -128,16 +128,12 @@ class RowIterator implements IteratorInterface
         }
 
         do {
-            $lineData = false;
+            $rowData = $this->getNextUTF8EncodedRow();
-            $utf8EncodedLineData = $this->getNextUTF8EncodedLine();
-            if ($utf8EncodedLineData !== false) {
-                $lineData = $this->globalFunctionsHelper->str_getcsv($utf8EncodedLineData, $this->fieldDelimiter, $this->fieldEnclosure);
-            }
             $hasNowReachedEndOfFile = $this->globalFunctionsHelper->feof($this->filePointer);
-        } while (($lineData === false && !$hasNowReachedEndOfFile) || $this->isEmptyLine($lineData));
+        } while (($rowData === false && !$hasNowReachedEndOfFile) || $this->isEmptyLine($rowData));
 
-        if ($lineData !== false) {
+        if ($rowData !== false) {
-            $this->rowDataBuffer = $lineData;
+            $this->rowDataBuffer = $rowData;
             $this->numReadRows++;
         } else {
             // If we reach this point, it means end of file was reached.
@@ -147,24 +143,39 @@ class RowIterator implements IteratorInterface
     }
 
     /**
-     * Returns the next line, converted if necessary to UTF-8.
+     * Returns the next row, converted if necessary to UTF-8.
-     * Neither fgets nor fgetcsv don't work with non UTF-8 data... so we need to do some things manually.
+     * As fgetcsv() does not manage correctly encoding for non UTF-8 data,
+     * we remove manually whitespace with ltrim or rtrim (depending on the order of the bytes)
      *
-     * @return string|false The next line for the current file pointer, encoded in UTF-8 or FALSE if nothing to read
+     * @return array|false The row for the current file pointer, encoded in UTF-8 or FALSE if nothing to read
      * @throws \Box\Spout\Common\Exception\EncodingConversionException If unable to convert data to UTF-8
      */
-    protected function getNextUTF8EncodedLine()
+    protected function getNextUTF8EncodedRow()
     {
-        // Read until the EOL delimiter or EOF is reached. The delimiter's encoding needs to match the CSV's encoding.
+        $encodedRowData = fgetcsv($this->filePointer, self::MAX_READ_BYTES_PER_LINE, $this->fieldDelimiter, $this->fieldEnclosure);
-        $encodedEOLDelimiter = $this->getEncodedEOLDelimiter();
+        if (false === $encodedRowData) {
-        $encodedLineData = $this->globalFunctionsHelper->stream_get_line($this->filePointer, self::MAX_READ_BYTES_PER_LINE, $encodedEOLDelimiter);
+            return false;
+        }
 
-        // If the line could have been read, it can be converted to UTF-8
+        foreach ($encodedRowData as $cellIndex => $cellValue) {
-        $utf8EncodedLineData = ($encodedLineData !== false) ?
+            switch($this->encoding) {
-            $this->encodingHelper->attemptConversionToUTF8($encodedLineData, $this->encoding) :
+                case EncodingHelper::ENCODING_UTF16_LE:
-            false;
+                case EncodingHelper::ENCODING_UTF32_LE:
+                    // remove whitespace from the beginning of a string as fgetcsv() add extra whitespace when it try to explode non UTF-8 data
+                    $cellValue = ltrim($cellValue);
+                    break;
 
-        return $utf8EncodedLineData;
+                case EncodingHelper::ENCODING_UTF16_BE:
+                case EncodingHelper::ENCODING_UTF32_BE:
+                    // remove whitespace from the end of a string as fgetcsv() add extra whitespace when it try to explode non UTF-8 data
+                    $cellValue = rtrim($cellValue);
+                    break;
+            }
+
+            $encodedRowData[$cellIndex] = $this->encodingHelper->attemptConversionToUTF8($cellValue, $this->encoding);
+        }
+
+        return $encodedRowData;
     }
 
     /**

src/Spout/Reader/ODS/Reader.php

@@ -19,6 +19,16 @@ class Reader extends AbstractReader
     /** @var SheetIterator To iterator over the ODS sheets */
     protected $sheetIterator;
 
+    /**
+     * Returns whether stream wrappers are supported
+     *
+     * @return bool
+     */
+    protected function doesSupportStreamWrapper()
+    {
+        return false;
+    }
+
     /**
      * Opens the file at the given file path to make it ready to be read.
      *

src/Spout/Reader/ODS/RowIterator.php

@@ -20,6 +20,7 @@ class RowIterator implements IteratorInterface
     const XML_NODE_TABLE = 'table:table';
     const XML_NODE_ROW = 'table:table-row';
     const XML_NODE_CELL = 'table:table-cell';
+    const MAX_COLUMNS_EXCEL = 16384;
 
     /** Definition of XML attribute used to parse data */
     const XML_ATTRIBUTE_NUM_COLUMNS_REPEATED = 'table:number-columns-repeated';
@@ -127,22 +128,23 @@ class RowIterator implements IteratorInterface
 
                 } else if ($this->xmlReader->isPositionedOnEndingNode(self::XML_NODE_ROW)) {
                     // End of the row description
-                    $isEmptyRow = ($numCellsRead <= 1 && empty($cellValue));
+                    $isEmptyRow = ($numCellsRead <= 1 && $this->isEmptyCellValue($cellValue));
                     if ($isEmptyRow) {
                         // skip empty rows
                         $this->next();
                         return;
                     }
 
-                    // Only add value if the last read cell is not empty or does not need to repeat cell values.
+                    // Only add the value if the last read cell is not a trailing empty cell repeater in Excel.
+                    // The current count of read columns is determined by counting the values in $rowData.
                     // This is to avoid creating a lot of empty cells, as Excel adds a last empty "<table:table-cell>"
                     // with a number-columns-repeated value equals to the number of (supported columns - used columns).
-                    // In Excel, the number of supported columns is 16384, but we don't want to returns rows with always 16384 cells.
+                    // In Excel, the number of supported columns is 16384, but we don't want to returns rows with
-                    if (!empty($cellValue) || $numColumnsRepeated === 1) {
+                    // always 16384 cells.
+                    if ((count($rowData) + $numColumnsRepeated) !== self::MAX_COLUMNS_EXCEL) {
                         for ($i = 0; $i < $numColumnsRepeated; $i++) {
                             $rowData[] = $cellValue;
                         }
-
                         $this->numReadRows++;
                     }
                     break;
@@ -181,6 +183,17 @@ class RowIterator implements IteratorInterface
         return $this->cellValueFormatter->extractAndFormatNodeValue($node);
     }
 
+    /**
+     * empty() replacement that honours 0 as a valid value
+     *
+     * @param $value The cell value
+     * @return bool
+     */
+    protected function isEmptyCellValue($value)
+    {
+        return (!isset($value) || trim($value) === '');
+    }
+
     /**
      * Return the current element, from the buffer.
      * @link http://php.net/manual/en/iterator.current.php

src/Spout/Reader/XLSX/Reader.php

@@ -37,6 +37,16 @@ class Reader extends AbstractReader
         return $this;
     }
 
+    /**
+     * Returns whether stream wrappers are supported
+     *
+     * @return bool
+     */
+    protected function doesSupportStreamWrapper()
+    {
+        return false;
+    }
+
     /**
      * Opens the file at the given file path to make it ready to be read.
      * It also parses the sharedStrings.xml file to get all the shared strings available in memory

src/Spout/Writer/AbstractWriter.php

@@ -319,6 +319,11 @@ abstract class AbstractWriter implements WriterInterface
     public function close()
     {
         $this->closeWriter();
+
+        if (is_resource($this->filePointer)) {
+            $this->globalFunctionsHelper->fclose($this->filePointer);
+        }
+
         $this->isWriterOpened = false;
     }
 }

src/Spout/Writer/CSV/Writer.php

@@ -96,10 +96,6 @@ class Writer extends AbstractWriter
      */
     protected function closeWriter()
     {
-        if ($this->filePointer) {
-            $this->globalFunctionsHelper->fclose($this->filePointer);
-        }
-
         $this->lastWrittenRowIndex = 0;
     }
 }

src/Spout/Writer/XLSX/Internal/Worksheet.php

@@ -146,7 +146,7 @@ EOD;
                     $cellXML .= ' t="s"><v>' . $sharedStringId . '</v></c>';
                 }
             } else if (CellHelper::isBoolean($cellValue)) {
-                $cellXML .= ' t="b"><v>' . $cellValue . '</v></c>';
+                    $cellXML .= ' t="b"><v>' . intval($cellValue) . '</v></c>';
             } else if (CellHelper::isNumeric($cellValue)) {
                 $cellXML .= '><v>' . $cellValue . '</v></c>';
             } else if (empty($cellValue)) {

tests/Spout/Reader/CSV/ReaderTest.php

@@ -204,6 +204,15 @@ class ReaderTest extends \PHPUnit_Framework_TestCase
         $this->assertEquals('This is, a comma', $allRows[0][0]);
     }
 
+    /**
+     * @return void
+     */
+    public function testReadShouldNotTruncateLineBreak()
+    {
+        $allRows = $this->getAllRowsForFile('csv_with_line_breaks.csv', ',');
+        $this->assertEquals("This is,\na comma", $allRows[0][0]);
+    }
+
     /**
      * @return array
      */
@@ -343,6 +352,38 @@ class ReaderTest extends \PHPUnit_Framework_TestCase
         $this->assertEquals($expectedRows, $allRows);
     }
 
+    /**
+     * https://github.com/box/spout/issues/184
+     * @return void
+     */
+    public function testReadShouldInludeRowsWithZerosOnly()
+    {
+        $allRows = $this->getAllRowsForFile('sheet_with_zeros_in_row.csv');
+
+        $expectedRows = [
+            ['A', 'B', 'C'],
+            ['1', '2', '3'],
+            ['0', '0', '0']
+        ];
+        $this->assertEquals($expectedRows, $allRows, 'There should be only 3 rows, because zeros (0) are valid values');
+    }
+
+    /**
+     * https://github.com/box/spout/issues/184
+     * @return void
+     */
+    public function testReadShouldCreateOutputEmptyCellPreserved()
+    {
+        $allRows = $this->getAllRowsForFile('sheet_with_empty_cells.csv');
+
+        $expectedRows = [
+            ['A', 'B', 'C'],
+            ['0', '', ''],
+            ['1', '1', '']
+        ];
+        $this->assertEquals($expectedRows, $allRows, 'There should be 3 rows, with equal length');
+    }
+
     /**
      * @param string $fileName
      * @param string|void $fieldDelimiter
@@ -423,4 +464,50 @@ class ReaderTest extends \PHPUnit_Framework_TestCase
         $this->assertEquals($expectedRows, $allRows);
     }
 
+    /**
+     * @return void
+     */
+    public function testReadCustomStreamWrapper()
+    {
+        $allRows = [];
+        $resourcePath = 'spout://csv_standard';
+
+        // register stream wrapper
+        stream_wrapper_register('spout', SpoutTestStream::CLASS_NAME);
+
+        /** @var \Box\Spout\Reader\CSV\Reader $reader */
+        $reader = ReaderFactory::create(Type::CSV);
+        $reader->open($resourcePath);
+
+        foreach ($reader->getSheetIterator() as $sheet) {
+            foreach ($sheet->getRowIterator() as $row) {
+                $allRows[] = $row;
+            }
+        }
+
+        $reader->close();
+
+        $expectedRows = [
+            ['csv--11', 'csv--12', 'csv--13'],
+            ['csv--21', 'csv--22', 'csv--23'],
+            ['csv--31', 'csv--32', 'csv--33'],
+        ];
+        $this->assertEquals($expectedRows, $allRows);
+
+        // cleanup
+        stream_wrapper_unregister('spout');
+    }
+
+    /**
+     * @expectedException \Box\Spout\Common\Exception\IOException
+     *
+     * @return void
+     */
+    public function testReadWithUnsupportedCustomStreamWrapper()
+    {
+        /** @var \Box\Spout\Reader\CSV\Reader $reader */
+        $reader = ReaderFactory::create(Type::CSV);
+        $reader->open('unsupported://foobar');
+    }
+
 }

tests/Spout/Reader/CSV/SpoutTestStream.php

@@ -0,0 +1,120 @@
+<?php
+
+namespace Box\Spout\Reader\CSV;
+
+/**
+ * Class SpoutTestStream
+ * Custom stream that reads CSV files located in the tests/resources/csv folder.
+ * For example: spout://foobar will point to tests/resources/csv/foobar.csv
+ *
+ * @package Box\Spout\Reader\CSV
+ */
+class SpoutTestStream
+{
+    const CLASS_NAME = __CLASS__;
+
+    const PATH_TO_CSV_RESOURCES = 'tests/resources/csv/';
+    const CSV_EXTENSION = '.csv';
+
+    /** @var int $position */
+    private $position;
+
+    /** @var resource $fileHandle */
+    private $fileHandle;
+
+    /**
+     * @param string $path
+     * @param int $flag
+     * @return array
+     */
+    public function url_stat($path, $flag)
+    {
+        $filePath = $this->getFilePathFromStreamPath($path);
+        return stat($filePath);
+    }
+
+    /**
+     * @param string $streamPath
+     * @return string
+     */
+    private function getFilePathFromStreamPath($streamPath)
+    {
+        $fileName = parse_url($streamPath, PHP_URL_HOST);
+        return self::PATH_TO_CSV_RESOURCES . $fileName . self::CSV_EXTENSION;
+    }
+
+    /**
+     * @param string $path
+     * @param string $mode
+     * @param int $options
+     * @param string $opened_path
+     * @return bool
+     */
+    public function stream_open($path, $mode, $options, &$opened_path)
+    {
+        $this->position = 0;
+
+        // the path is like "spout://csv_name" so the actual file name correspond the name of the host.
+        $filePath = $this->getFilePathFromStreamPath($path);
+        $this->fileHandle = fopen($filePath, $mode);
+
+        return true;
+    }
+
+    /**
+     * @param int $numBytes
+     * @return string
+     */
+    public function stream_read($numBytes)
+    {
+        $this->position += $numBytes;
+        return fread($this->fileHandle, $numBytes);
+    }
+
+    /**
+     * @return int
+     */
+    public function stream_tell()
+    {
+        return $this->position;
+    }
+
+    /**
+     * @param int $offset
+     * @param int|void $whence
+     * @return bool
+     */
+    public function stream_seek($offset, $whence = SEEK_SET)
+    {
+        $result = fseek($this->fileHandle, $offset, $whence);
+        if ($result === -1) {
+            return false;
+        }
+
+        if ($whence === SEEK_SET) {
+            $this->position = $offset;
+        } else if ($whence === SEEK_CUR) {
+            $this->position += $offset;
+        } else {
+            // not implemented
+        }
+
+        return true;
+    }
+
+    /**
+     * @return bool
+     */
+    public function stream_close()
+    {
+        return fclose($this->fileHandle);
+    }
+
+    /**
+     * @return bool
+     */
+    public function stream_eof()
+    {
+        return feof($this->fileHandle);
+    }
+}

tests/Spout/Reader/ODS/ReaderTest.php

@@ -363,6 +363,62 @@ class ReaderTest extends \PHPUnit_Framework_TestCase
         $this->assertEquals($expectedRows, $allRows);
     }
 
+    /**
+     * @expectedException \Box\Spout\Common\Exception\IOException
+     *
+     * @return void
+     */
+    public function testReadWithUnsupportedCustomStreamWrapper()
+    {
+        /** @var \Box\Spout\Reader\ODS\Reader $reader */
+        $reader = ReaderFactory::create(Type::ODS);
+        $reader->open('unsupported://foobar');
+    }
+
+    /**
+     * @expectedException \Box\Spout\Common\Exception\IOException
+     *
+     * @return void
+     */
+    public function testReadWithSupportedCustomStreamWrapper()
+    {
+        /** @var \Box\Spout\Reader\ODS\Reader $reader */
+        $reader = ReaderFactory::create(Type::ODS);
+        $reader->open('php://memory');
+    }
+
+    /**
+     * https://github.com/box/spout/issues/184
+     * @return void
+     */
+    public function testReadShouldInludeRowsWithZerosOnly()
+    {
+        $allRows = $this->getAllRowsForFile('sheet_with_zeros_in_row.ods');
+
+        $expectedRows = [
+            ['A', 'B', 'C'],
+            ['1', '2', '3'],
+            ['0', '0', '0']
+        ];
+        $this->assertEquals($expectedRows, $allRows, 'There should be only 3 rows, because zeros (0) are valid values');
+    }
+
+    /**
+     * https://github.com/box/spout/issues/184
+     * @return void
+     */
+    public function testReadShouldCreateOutputEmptyCellPreserved()
+    {
+        $allRows = $this->getAllRowsForFile('sheet_with_empty_cells.ods');
+
+        $expectedRows = [
+            ['A', 'B', 'C'],
+            ['0', '', ''],
+            ['1', '1', '']
+        ];
+        $this->assertEquals($expectedRows, $allRows, 'There should be 3 rows, with equal length');
+    }
+
     /**
      * @param string $fileName
      * @return array All the read rows the given file

tests/Spout/Reader/XLSX/ReaderTest.php

@@ -404,6 +404,63 @@ class ReaderTest extends \PHPUnit_Framework_TestCase
         $this->assertEquals($expectedRows, $allRows);
     }
 
+    /**
+     * @expectedException \Box\Spout\Common\Exception\IOException
+     *
+     * @return void
+     */
+    public function testReadWithUnsupportedCustomStreamWrapper()
+    {
+        /** @var \Box\Spout\Reader\XLSX\Reader $reader */
+        $reader = ReaderFactory::create(Type::XLSX);
+        $reader->open('unsupported://foobar');
+    }
+
+    /**
+     * @expectedException \Box\Spout\Common\Exception\IOException
+     *
+     * @return void
+     */
+    public function testReadWithSupportedCustomStreamWrapper()
+    {
+        /** @var \Box\Spout\Reader\XLSX\Reader $reader */
+        $reader = ReaderFactory::create(Type::XLSX);
+        $reader->open('php://memory');
+    }
+
+    /**
+     * https://github.com/box/spout/issues/184
+     * @return void
+     */
+    public function testReadShouldInludeRowsWithZerosOnly()
+    {
+        $allRows = $this->getAllRowsForFile('sheet_with_zeros_in_row.xlsx');
+
+        $expectedRows = [
+            ['A', 'B', 'C'],
+            ['1', '2', '3'],
+            ['0', '0', '0']
+        ];
+        $this->assertEquals($expectedRows, $allRows, 'There should be only 3 rows, because zeros (0) are valid values');
+    }
+
+    /**
+     * https://github.com/box/spout/issues/184
+     * @return void
+     */
+    public function testReadShouldCreateOutputEmptyCellPreserved()
+    {
+        $allRows = $this->getAllRowsForFile('sheet_with_empty_cells.xlsx');
+
+        $expectedRows = [
+            ['A', 'B', 'C'],
+            ['0', '', ''],
+            ['1', '1', '']
+        ];
+        $this->assertEquals($expectedRows, $allRows, 'There should be 3 rows, with equal length');
+    }
+
+
     /**
      * @param string $fileName
      * @return array All the read rows the given file

tests/bootstrap.php

@@ -3,6 +3,7 @@ require_once(dirname(__DIR__) . '/vendor/autoload.php');
 
 require_once(dirname(__DIR__) . '/tests/Spout/TestUsingResource.php');
 require_once(dirname(__DIR__) . '/tests/Spout/ReflectionHelper.php');
+require_once(dirname(__DIR__) . '/tests/Spout/Reader/CSV/SpoutTestStream.php');
 
 // Make sure a timezone is set to be able to work with dates
 date_default_timezone_set('UTC');

tests/resources/csv/csv_with_line_breaks.csv

@@ -0,0 +1,2 @@
+"This is,
+a comma",csv--12

tests/resources/csv/sheet_with_empty_cells.csv

@@ -0,0 +1,3 @@
+"A","B","C"
+0,,
+1,1,

tests/resources/csv/sheet_with_zeros_in_row.csv

@@ -0,0 +1,3 @@
+"A","B","C"
+1,2,3
+0,0,0