How to disable 'zip' warning in bash?

I want to zip a file using bash shell, so I used:

echo -n 'Insert the file path:'
read path
echo 'Hello World' > ${path}
zip -u ${path}.zip ${path}

When I run this script, it gives me a warning:

zip warning: test.zip not found or empty
adding: test (deflated 66%)

It works just fine but how can I disable this warning? Am I using zip in right way?