diff --git a/tests/test_image_captcha.py b/tests/test_image_captcha.py
index 0804737..9da51db 100644
--- a/tests/test_image_captcha.py
+++ b/tests/test_image_captcha.py
@@ -1,5 +1,8 @@
+from unittest.mock import AsyncMock, MagicMock
+
 from tests.conftest import BaseTest
 from python3_anticaptcha.image_captcha import ImageToTextCaptcha
+from python3_anticaptcha.core.serializer import GetTaskResultResponseSer
 
 
 class TestImageCaptcha(BaseTest):
@@ -27,3 +30,47 @@ class TestImageCaptcha(BaseTest):
     def test_args(self):
         instance = ImageToTextCaptcha(api_key=self.API_KEY)
         assert instance.create_task_payload.clientKey == self.API_KEY
+
+    def test_kwargs(self, mocker):
+        mocked_method: MagicMock = mocker.patch("python3_anticaptcha.core.base.BaseCaptcha._body_file_processing")
+
+        instance = ImageToTextCaptcha(api_key=self.API_KEY)
+        instance.captcha_handler(**self.kwargs_params)
+
+        assert mocked_method.call_count == 1
+
+        assert set(self.kwargs_params.keys()).issubset(set(instance.task_params.keys()))
+        assert set(self.kwargs_params.values()).issubset(set(instance.task_params.values()))
+
+    async def test_aio_kwargs(self, mocker):
+        mocked_method: AsyncMock = mocker.patch("python3_anticaptcha.core.base.BaseCaptcha._aio_body_file_processing")
+
+        instance = ImageToTextCaptcha(api_key=self.API_KEY)
+        await instance.aio_captcha_handler(**self.kwargs_params)
+
+        assert mocked_method.call_count == 1
+
+        assert set(self.kwargs_params.keys()).issubset(set(instance.task_params.keys()))
+        assert set(self.kwargs_params.values()).issubset(set(instance.task_params.values()))
+
+    def test_result_with_errorId(self, mocker):
+        mocked_method: MagicMock = mocker.patch("python3_anticaptcha.core.base.BaseCaptcha._body_file_processing")
+
+        instance = ImageToTextCaptcha(api_key=self.API_KEY)
+        instance.result.errorId = 1
+        result = instance.captcha_handler(**self.kwargs_params)
+
+        assert mocked_method.call_count == 1
+        assert isinstance(result, dict)
+        assert result == GetTaskResultResponseSer(**result).to_dict()
+
+    async def test_aio_result_with_errorId(self, mocker):
+        mocked_method: AsyncMock = mocker.patch("python3_anticaptcha.core.base.BaseCaptcha._aio_body_file_processing")
+
+        instance = ImageToTextCaptcha(api_key=self.API_KEY)
+        instance.result.errorId = 1
+        result = await instance.aio_captcha_handler(**self.kwargs_params)
+
+        assert mocked_method.call_count == 1
+        assert isinstance(result, dict)
+        assert result == GetTaskResultResponseSer(**result).to_dict()