Add first rake test

tests/test_rake.py

@@ -1,8 +1,11 @@
 from rake_new2 import Rake
 
-r = Rake()
 
-text = "How are your children ?"
-r.get_keywords_from_raw_text(text)
+def test_first_rake_test():
+    r = Rake()
 
-print(r.get_keywords_with_scores())
+    text = "How are your children ?"
+    r.get_keywords_from_raw_text(text)
+
+    result = r.get_keywords_with_scores()
+    assert result == {(1.0, 'children')}