Number of tests: 3395 Source: https://www.ontario.ca/page/2019-novel-coronavirus Population: 14,659,616 (estimated for 2019-Q4 found on Wikipedia)
The source for each of the figures is in the last column of the table.
Did you just want to post Ontario's numbers (Canada was not in the table at all) or are you questioning the accuracy of the worldometers page?
Number of tests: 3395 Source: https://www.ontario.ca/page/2019-novel-coronavirus Population: 14,659,616 (estimated for 2019-Q4 found on Wikipedia)