All airline passengers (including transit passengers) who arrive in Germany after March 30, 2021 must present a negative COVID-19 test result to the airline prior to boarding. The swabbing must be done no more than 48 hours prior to entering Germany. PCR tests as well as rapid antigen tests are accepted.
Please note that testing is still mandatory even if you are vaccinated or previously had COVID.
Please read all information here: https://canada.diplo.de/ca-en/consular-services/-/2369946