diff --git a/tests/test_call.py b/tests/test_call.py
index e180e7a..3dce9a0 100644
--- a/tests/test_call.py
+++ b/tests/test_call.py
@@ -12,7 +12,6 @@
 ###########################################################
 
 
-# split_cigarのテスト
 @pytest.mark.parametrize(
     "cigar, expected",
     [
@@ -45,7 +44,6 @@ def testparse_md(md_input, expected_output):
     assert parse_md(md_input) == expected_output
 
 
-# join_cigarのテスト
 @pytest.mark.parametrize(
     "cigar_tuples, expected",
     [
@@ -63,7 +61,6 @@ def testjoin_cigar(cigar_tuples, expected):
     assert join_cigar(cigar_tuples) == expected
 
 
-# trim_clipsのテスト
 @pytest.mark.parametrize(
     "cigar, seq, expected_cigar, expected_seq",
     [
diff --git a/tests/test_to_vcf.py b/tests/test_to_vcf.py
index 567039e..a080e49 100644
--- a/tests/test_to_vcf.py
+++ b/tests/test_to_vcf.py
@@ -25,7 +25,6 @@ class Vcf(NamedTuple):
     info: VcfInfo = VcfInfo()
 
 
-# find_ref_for_insertionのテスト
 def test_find_ref_for_insertion():
     assert find_ref_for_insertion(["=ACGT", "*ga", "+a"], 0) is None
     assert find_ref_for_insertion(["=ACGT", "*ga", "+a"], 1) == "T"
@@ -33,7 +32,6 @@ def test_find_ref_for_insertion():
     assert find_ref_for_insertion(["=AC", "=GT", "-g", "+a"], 3) == "G"
 
 
-# find_ref_for_deletionのテスト
 def test_find_ref_for_deletion():
     assert find_ref_for_deletion(["=AC", "-g"], 1) == "CG"
     assert find_ref_for_deletion(["=ACGT", "*ga", "-a"], 2) == "GA"
@@ -41,7 +39,6 @@ def test_find_ref_for_deletion():
     assert find_ref_for_deletion(["=AC", "=GT", "+a", "-a"], 3) == "TA"
 
 
-# get_variant_annotationsのテスト
 def test_get_variant_annotations():
     default_info = VcfInfo()
     # single mutation
@@ -83,7 +80,6 @@ def test_get_variant_annotations():
     ]
 
 
-# process_cs_tag関数のテスト
 def test_process_cs_tag():
     cs_tag1 = "=AC*gt=T-gg=C+tt=A"
     chrom1 = "chr1"