test: long blur parameter

tests/unit/mocked/test_client_advanced_behavior.py

@@ -1,6 +1,6 @@
 from unittest.mock import ANY
-from image_go_nord_client.main import main
 
+from image_go_nord_client.main import main
 
 from .unit_test_base_class import UnitTestBaseClass
 
@@ -32,6 +32,15 @@ def test_convert_to_nord_palette_using_long_no_avg_pixels_parameter(self):
             ANY, save_path="output.jpg"
         )
 
+    def test_convert_to_nord_palette_using_long_blur_parameter(self):
+        main(argv=["image-go-nord-client", "--blur", "-i=file3.png"])
+        self.mock_gn_instance.disable_avg_algorithm.assert_not_called()
+        self.mock_gn_instance.enable_gaussian_blur.assert_called_once()
+        self.mock_gn_instance.open_image.assert_called_with("file3.png")
+        self.mock_gn_instance.convert_image.assert_called_with(
+            ANY, save_path=self.DEFAULT_OUTPUT_FILE_NAME
+        )
+
     def test_convert_to_nord_palette_using_short_blur_parameter(self):
         main(argv=["image-go-nord-client", "-b", "-i=file3.png"])
         self.mock_gn_instance.disable_avg_algorithm.assert_not_called()