Cleaning up what was created...

Test that the saving happened

Test that the new image has the right name and is in the right directory

Test that the new image is created on request

Test that an image can be renamed correctly

Now add a simple size, and test that the resizing system works

Tests that even by brutally calling convert_to_png, the method will throw an exception since an image with the same name already exis

Tests the gaussian blur

Test that applying a filter results in a new image created correctly.

Test that applying a filter results in a new image created correctly.

Test that renaming another image with the same name of an existing one will trigger an exception

Test that when an image is upscaled, the info is saved onto the db