move stl ebu 1991 tests to pycaption / enable python 3.12

Author: sannies

pycaption/stl/ebu_stl_reader.py

@@ -238,7 +238,7 @@ def decode(self, input, errors="strict"):
         return output, len(input)
 
     def search(name):
-        if name in ("iso6937", "iso_6937-2"):
+        if name in ("iso6937", "iso_6937-2", "iso_6937_2"):
             return codecs.CodecInfo(
                 name="iso_6937-2",
                 encode=iso6937().encode,

tests/ebu1991/test.stl

@@ -0,0 +1,15 @@
+import unittest
+from os.path import join, dirname, abspath
+
+from pycaption.stl.ebu_stl_reader import STLReader
+
+
+class SRTtoWebVTTTestCase(unittest.TestCase):
+    directory = join(dirname(abspath(__file__)))
+    def test_stl(self):
+        stl = STLReader()
+        content = open(join(self.directory, "ebu1991", "test.stl"), "rb").read()
+        self.assertTrue(stl.detect(content))
+        captions = stl.read(content)
+
+        self.assertEqual(len(captions.get_captions("de")), 494)