Adding a test

python/test_transcripts.py

+import unittest
+import transcripts
+
+
+class TestTranscripts(unittest.TestCase):
+    def test_txt_to_tex(self):
+        text = "A\\${}_#"
+        tex = transcripts.txt_to_tex(text)
+        self.assertEqual(tex, "A\\textbackslash\\$\\{\\}\\_\\#")
+
+
+if __name__ == "__main__":
+    unittest.main()
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