No confirmed coronavirus cases were found during the testing period, which ended on Monday, the paper said.
Chinese authorities categorise as confirmed coronavirus cases patients who have both tested positive and shown symptoms such as a cough and fever.
The mass testing was intended to assuage public concerns after a cluster of six new cases were reported in the city following 35 days of no new reported infections.
Authorities used sample pooling, in which they collected individual samples but processed up to 10 of them together in a single nucleic-acid test.
The same method has been used in the United States and Germany to track coronavirus cases albeit on a smaller scale.
China on Tuesday said it was monitoring 73 active coronavirus cases across the country, including five new infections identified over the previous day among travelers returning from abroad.