diff --git a/tests/Spout/Reader/Wrapper/XMLReaderTest.php b/tests/Spout/Reader/Wrapper/XMLReaderTest.php
index b16c648..3b22378 100644
--- a/tests/Spout/Reader/Wrapper/XMLReaderTest.php
+++ b/tests/Spout/Reader/Wrapper/XMLReaderTest.php
@@ -138,11 +138,12 @@ class XMLReaderTest extends \PHPUnit_Framework_TestCase
     public function dataProviderForTestGetRealPathURIForFileInZip()
     {
         $tempFolder = realpath(sys_get_temp_dir());
+        $tempFolderName = basename($tempFolder);
         $expectedRealPathURI = 'zip://' . $tempFolder . '/test.xlsx#test.xml';
 
         return [
             [$tempFolder, "$tempFolder/test.xlsx", 'test.xml', $expectedRealPathURI],
-            [$tempFolder, "/../../../$tempFolder/test.xlsx", 'test.xml', $expectedRealPathURI],
+            [$tempFolder, "$tempFolder/../$tempFolderName/test.xlsx", 'test.xml', $expectedRealPathURI],
         ];
     }
 
@@ -162,7 +163,11 @@ class XMLReaderTest extends \PHPUnit_Framework_TestCase
         $xmlReader = new XMLReader();
         $realPathURI = \ReflectionHelper::callMethodOnObject($xmlReader, 'getRealPathURIForFileInZip', $zipFilePath, $fileInsideZipPath);
 
-        $this->assertEquals($expectedRealPathURI, $realPathURI);
+        // Normalizing path separators for Windows support
+        $normalizedRealPathURI = str_replace('\\', '/', $realPathURI);
+        $normalizedExpectedRealPathURI = str_replace('\\', '/', $expectedRealPathURI);
+
+        $this->assertEquals($normalizedExpectedRealPathURI, $normalizedRealPathURI);
 
         unlink($tempFolder . '/test.xlsx');
     }
diff --git a/tests/Spout/TestUsingResource.php b/tests/Spout/TestUsingResource.php
index ec183b9..17c37b5 100644
--- a/tests/Spout/TestUsingResource.php
+++ b/tests/Spout/TestUsingResource.php
@@ -7,8 +7,8 @@ namespace Box\Spout;
  *
  * @package Box\Spout
  */
-trait TestUsingResource {
-
+trait TestUsingResource
+{
     /** @var string Path to the test resources folder */
     private $resourcesPath = 'tests/resources';
 
@@ -70,6 +70,11 @@ trait TestUsingResource {
      */
     protected function createUnwritableFolderIfNeeded()
     {
+        // On Windows, chmod() or the mkdir's mode is ignored
+        if ($this->isWindows()) {
+            $this->markTestSkipped('Skipping because Windows cannot create read-only folders through PHP');
+        }
+
         if (!file_exists($this->generatedUnwritableResourcesPath)) {
             // Make sure generated folder exists first
             if (!file_exists($this->generatedResourcesPath)) {
@@ -80,4 +85,12 @@ trait TestUsingResource {
             mkdir($this->generatedUnwritableResourcesPath, 0444, true);
         }
     }
+
+    /**
+     * @return bool Whether the OS on which PHP is installed is Windows
+     */
+    protected function isWindows()
+    {
+        return strtoupper(substr(PHP_OS, 0, 3)) === 'WIN';
+    }
 }
diff --git a/tests/Spout/Writer/CSV/WriterTest.php b/tests/Spout/Writer/CSV/WriterTest.php
index 77a6638..1a95012 100644
--- a/tests/Spout/Writer/CSV/WriterTest.php
+++ b/tests/Spout/Writer/CSV/WriterTest.php
@@ -22,7 +22,7 @@ class WriterTest extends \PHPUnit_Framework_TestCase
     public function testWriteShouldThrowExceptionIfCannotOpenFileForWriting()
     {
         $fileName = 'file_that_wont_be_written.csv';
-        $this->createUnwritableFolderIfNeeded($fileName);
+        $this->createUnwritableFolderIfNeeded();
         $filePath = $this->getGeneratedUnwritableResourcePath($fileName);
 
         $writer = WriterFactory::create(Type::CSV);