From 01 AUG 2020 all passengers flying with Emirates and Etihad from any airport outside of the UAE must provide a negative COVID-19 test certificate to fly. This means you have to take a test before you travel. It needs to be taken a maximum of 96 hours before you’re due to depart, and is not required for children under the age of 12 and passengers with a severe or moderate disability.
In most countries, there are designated testing labs. If you’re in a country where a testing lab has not been designated, you’ll need to use another accredited testing lab.