From 0aa90d9aa7210ab4df4b96f23a9fc8045e572131 Mon Sep 17 00:00:00 2001
From: Andreas Gohr <andi@splitbrain.org>
Date: Thu, 9 May 2013 14:53:36 +0200
Subject: tar library: another fix for lone zero blocks

---
 _test/tests/inc/tar.test.php | 44 ++++++++++++++++++++++++++++++++++++++++++++
 1 file changed, 44 insertions(+)

(limited to '_test')

diff --git a/_test/tests/inc/tar.test.php b/_test/tests/inc/tar.test.php
index e8805a75d..90bc2e49e 100644
--- a/_test/tests/inc/tar.test.php
+++ b/_test/tests/inc/tar.test.php
@@ -316,4 +316,48 @@ class Tar_TestCase extends DokuWikiTest {
 
         TestUtils::rdelete($out);
     }
+
+    /**
+     * A single zero file should be just a header block + the footer
+     */
+    public function test_zerofile(){
+        $dir = dirname(__FILE__).'/tar';
+        $tar = new Tar();
+        $tar->create();
+        $tar->addFile("$dir/zero.txt", 'zero.txt');
+        $file = $tar->getArchive(Tar::COMPRESS_NONE);
+
+        $this->assertEquals(512*3, strlen($file)); // 1 header block + 2 footer blocks
+    }
+
+    public function test_zerodata(){
+        $tar = new Tar();
+        $tar->create();
+        $tar->addData('zero.txt','');
+        $file = $tar->getArchive(Tar::COMPRESS_NONE);
+
+        $this->assertEquals(512*3, strlen($file)); // 1 header block + 2 footer blocks
+    }
+
+    /**
+     * A file of exactly one block should be just a header block + data block + the footer
+     */
+    public function test_blockfile(){
+        $dir = dirname(__FILE__).'/tar';
+        $tar = new Tar();
+        $tar->create();
+        $tar->addFile("$dir/block.txt", 'block.txt');
+        $file = $tar->getArchive(Tar::COMPRESS_NONE);
+
+        $this->assertEquals(512*4, strlen($file)); // 1 header block + data block + 2 footer blocks
+    }
+
+    public function test_blockdata(){
+        $tar = new Tar();
+        $tar->create();
+        $tar->addData('block.txt', str_pad('', 512, 'x'));
+        $file = $tar->getArchive(Tar::COMPRESS_NONE);
+
+        $this->assertEquals(512*4, strlen($file)); // 1 header block + data block + 2 footer blocks
+    }
 }
\ No newline at end of file
-- 
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