Added new test cases for s3 gate, delete marker feature

pytest_tests/testsuites/services/s3_gate/test_s3_object.py

@@ -949,3 +949,54 @@ class TestS3GateObject(TestS3GateBase):
         with allure.step("Put object"):
             s3_gate_object.put_object_s3(self.s3_client, bucket, file_path_1)
             check_objects_in_bucket(self.s3_client, bucket, [file_name])
+
+    @allure.title("Test S3: Delete non-existing object from empty bucket")
+    def test_s3_delete_non_existing_object(self, bucket):
+        set_bucket_versioning(self.s3_client, bucket, s3_gate_bucket.VersioningStatus.ENABLED)
+
+        objects_list = s3_gate_object.list_objects_versions_s3(self.s3_client, bucket)
+        assert not objects_list, f"Expected empty bucket, got {objects_list}"
+
+        obj_key = "fake_object_key"
+
+        with allure.step("Delete non-existing object"):
+            delete_obj = s3_gate_object.delete_object_s3(self.s3_client, bucket, obj_key)
+            # there should be no objects or delete markers in the bucket
+            assert "DeleteMarkers" not in delete_obj.keys(), "Delete markers not found"
+            objects_list = s3_gate_object.list_objects_versions_s3(self.s3_client, bucket)
+            assert not objects_list, f"Expected empty bucket, got {objects_list}"
+
+    @allure.title("Test S3: Delete the same object twice")
+    def test_s3_delete_twice(self, bucket, simple_object_size):
+        set_bucket_versioning(self.s3_client, bucket, s3_gate_bucket.VersioningStatus.ENABLED)
+        objects_list = s3_gate_object.list_objects_s3(self.s3_client, bucket)
+        assert not objects_list, f"Expected empty bucket, got {objects_list}"
+
+        file_path = generate_file(simple_object_size)
+        file_name = self.object_key_from_file_path(file_path)
+
+        with allure.step("Put object into one bucket"):
+            s3_gate_object.put_object_s3(self.s3_client, bucket, file_path)
+
+        with allure.step("Delete the object from the bucket"):
+            delete_object = s3_gate_object.delete_object_s3(self.s3_client, bucket, file_name)
+            versions = s3_gate_object.list_objects_versions_s3(self.s3_client, bucket)
+
+            obj_versions = {
+                version.get("VersionId") for version in versions if version.get("Key") == file_name
+            }
+            assert obj_versions, f"Object versions were not found {objects_list}"
+            assert "DeleteMarkers" not in delete_object.keys(), "Delete markers not found"
+
+        with allure.step("Delete the object from the bucket again"):
+            delete_object_2nd_attempt = s3_gate_object.delete_object_s3(
+                self.s3_client, bucket, file_name
+            )
+            versions_2nd_attempt = s3_gate_object.list_objects_versions_s3(self.s3_client, bucket)
+
+            assert (
+                delete_object.keys() == delete_object_2nd_attempt.keys()
+            ), "Delete markers are not the same"
+            # check that nothing was changed
+            # checking here not VersionId only, but all data (for example LastModified)
+            assert versions == versions_2nd_attempt, "Versions are not the same"