test(executor): sentencizer trimming spaces

Test the functionality of trimming spaces at the beginning
and end of the chunks.
Ignoring chunks with only spaces.
It also works with tabs because the code is using the regex
expression '\s' that includes all blank characters.

tests/executors/crafters/nlp/split.py

@@ -32,6 +32,17 @@ def test_sentencier_en_float_numbers(self):
         crafted_chunk_list = sentencizer.craft(raw_bytes, 0)
         self.assertEqual(len(crafted_chunk_list), 2)
 
+    def test_sentencier_en_trim_spaces(self):
+        """
+        Trimming all spaces at the beginning an end of the chunks.
+        Keeping extra spaces inside chunks.
+        Ignoring chunks with only spaces.
+        """
+        sentencizer = Sentencizer()
+        raw_bytes = b'  This ,  text is...  . Amazing !!'
+        chunks = [i["text"] for i in sentencizer.craft(raw_bytes, 0)]
+        self.assertListEqual(chunks, ["This ,  text is", "Amazing"])
+
     def test_sentencier_cn(self):
         sentencizer = Sentencizer()
         raw_bytes = '今天是个大晴天！安迪回来以后，我们准备去动物园。'.encode('utf8')