Test other than PCR test are currently not accepted. If a passenger does not arrive with a negative COVID-19 test, a rapid COVID-19 test will be performed at the airport, at a cost of 90,000 CFA (approximately 155 US Dollars) and the passenger will be detained until results are available.
Children under the age of 2 are exempt from presenting a COVID-19 test.
Travelers with proof of recovery from the virus within the last 90 days prior to boarding. Proof of a recent positive viral test and a letter from your healthcare provider or a public health official stating that you were cleared to travel.
More info at the CDC site
Travelers who did not get tested, are advised to stay home and self-quarantine for 10 days after travel.