This is a community contribution.  

Install MathWallet Chrome Extension


In [Settings]-[Networks], open: Binance Smart Chain – Testnet

Click Switch Network and select 'Binance Smart Chain – Testnet'

Click + button, create a new wallet address

Copy the wallet address, and you can get test token in link below:

Check the address in Bscscan whether the test BNB arrives

Open Remix IDE

In deploy tab, select Injected Web3, Remix will connect to the test wallet automatically