diff --git a/ecs/crm-datafetch/tests/aws/test_s3.py b/ecs/crm-datafetch/tests/aws/test_s3.py
index 7153d2a0..e30deaa7 100644
--- a/ecs/crm-datafetch/tests/aws/test_s3.py
+++ b/ecs/crm-datafetch/tests/aws/test_s3.py
@@ -1,5 +1,5 @@
 import pytest
-from src.aws.s3 import ConfigBucket, S3Resource
+from src.aws.s3 import ConfigBucket, DataBucket, S3Resource
 
 
 @pytest.fixture
@@ -157,3 +157,61 @@ class TestConfigBucket:
         sut = ConfigBucket()
 
         assert str(sut) == bucket_name
+
+
+class TestDataBucket:
+
+    def test_put_csv(self, s3_test, s3_client, bucket_name, monkeypatch):
+        """
+        Cases:
+            任意のファイルをPUTできること
+        Arranges:
+
+        Expects:
+            PUTしたファイルが存在する
+        """
+        monkeypatch.setattr('src.aws.s3.IMPORT_DATA_BUCKET', bucket_name)
+        monkeypatch.setattr('src.aws.s3.CRM_IMPORT_DATA_FOLDER', 'crm/target')
+
+        sut = DataBucket()
+        actual = sut.put_csv('test.csv', 'test,test,test')
+
+        actual = s3_client.get_object(Bucket=bucket_name, Key=f'crm/target/test.csv')
+        assert actual['Body'].read().decode('utf-8') == 'test,test,test'
+
+    def test_put_csv_from(self, s3_test, s3_client, bucket_name, monkeypatch):
+        """
+        Cases:
+            他のバケットから任意のファイルをコピーできること
+        Arranges:
+
+        Expects:
+            コピーしたファイルが存在する
+        """
+        for_copy_bucket = 'for-copy-bucket'
+        s3_client.create_bucket(Bucket=for_copy_bucket)
+        s3_client.put_object(Bucket=bucket_name, Key='hogehoge/test.csv', Body=b'test,test,test')
+
+        monkeypatch.setattr('src.aws.s3.IMPORT_DATA_BUCKET', for_copy_bucket)
+        monkeypatch.setattr('src.aws.s3.CRM_IMPORT_DATA_FOLDER', 'crm/target')
+
+        sut = DataBucket()
+        sut.put_csv_from(bucket_name, 'hogehoge/test.csv')
+        actual = s3_client.get_object(Bucket=for_copy_bucket, Key=f'crm/target/test.csv')
+
+        assert actual['Body'].read().decode('utf-8') == 'test,test,test'
+
+    def test_data_bucket_str(self, s3_test, s3_client, bucket_name, monkeypatch):
+        """
+        Cases:
+            設定ファイル配置バケットを文字列化したとき、バケット名が取得できること
+        Arranges:
+
+        Expects:
+            環境変数の設定ファイル配置バケット名と一致する
+        """
+        monkeypatch.setattr('src.aws.s3.IMPORT_DATA_BUCKET', bucket_name)
+
+        sut = DataBucket()
+
+        assert str(sut) == bucket_name