Add tests

Change-Id: I9395db27c7c4f40ea1f27b189471ecef6925ef6d
diff --git a/Makefile.PL b/Makefile.PL
index f891546..a711f65 100644
--- a/Makefile.PL
+++ b/Makefile.PL
@@ -5,19 +5,21 @@
 use ExtUtils::MakeMaker;
 
 WriteMakefile(
-  NAME         => 'korapxml2conllu',
-  AUTHOR       => 'Marc Kupietz',
-  ABSTRACT     => 'Conversion from KorAP-XML zip files to CoNLL-U format',
-  VERSION      => '0.1',
-  LICENSE      => 'freebsd',
-  BUILD_REQUIRES => {
-  },
-  PREREQ_PM => {
-    'POSIX'=> 0,
-    'Getopt::Std' => 0,
-    'Encode' => 0,
-    'List::Util' => 0
-  },
-  MIN_PERL_VERSION => '5.016',
-  EXE_FILES => ['./script/korapxml2conllu']
+    NAME             => 'korapxml2conllu',
+    AUTHOR           => 'Marc Kupietz',
+    ABSTRACT         => 'Conversion from KorAP-XML zip files to CoNLL-U format',
+    VERSION          => '0.1',
+    LICENSE          => 'freebsd',
+    BUILD_REQUIRES   => {
+    },
+    PREREQ_PM        => {
+        'POSIX'        => 0,
+        'Getopt::Std'  => 0,
+        'Encode'       => 0,
+        'List::Util'   => 0,
+        'Test::More'   => 0,
+        'Test::Script' => 0
+    },
+    MIN_PERL_VERSION => '5.016',
+    EXE_FILES        => [ './script/korapxml2conllu' ]
 );