diff --git a/test/Test_representative_and_match/test_match.py b/test/Test_representative_and_match/test_match.py
index 5df3be0046aaac37a1e09df21deb67fd42894cb3..c8b156cb24435bb24d9764dd50c19ac1fdde6086 100644
--- a/test/Test_representative_and_match/test_match.py
+++ b/test/Test_representative_and_match/test_match.py
@@ -166,6 +166,10 @@ def test_output_tsv():
     
  
 def test_match_reprTranscript_expressionLevel():
+    """
+    This function test that the right output is generated by the function
+    match_reprTranscript_expressionLevel()
+    """
     input_path = tFun.find_path("test_gene_exprL")
     intermediate_path = tFun.find_path_intermediateFile()
     dict_repr_test = {'ENSMUSG00000079415': 'ENSMUST00000112933',