doc: add new doc with test scenarios for different modes

Author: guggero

doc/testing.md

@@ -0,0 +1,89 @@
+# Test scenarios
+
+The possible number of combinations of local/remote configurations has become
+quite large over time.
+
+The following tests should be run whenever something in the local/remote config
+or proxying changes:
+
+## `lnd` integrated
+
+### All daemons integrated
+
+```shell
+--httpslisten=[::]:8443
+--uipassword=testnet3
+--network=regtest
+--lnd-mode=integrated
+...
+```
+
+1. Open UI, make sure Loop and Pool calls are served correctly
+2. Use `lncli` against LiT
+   `lncli --network regtest getinfo`
+3. Use `pool` and `loop` CLI against `lnd` main gRPC server (port `10009`) 
+   - `loop --rpcserver=localhost:10009 --tlscertpath=~/.lnd/tls.cert --macaroonpath=~/.loop/regtest/loop.macaroon terms`
+   - `pool --rpcserver=localhost:10009 --tlscertpath=~/.lnd/tls.cert --macaroonpath=~/.pool/regtest/pool.macaroon getinfo`
+4. Use `pool` and `loop` CLI against  LiT proxy server (port `8443`)
+   - `loop --rpcserver=localhost:8443 --tlscertpath=~/.lnd/tls.cert --macaroonpath=~/.loop/regtest/loop.macaroon terms`
+   - `pool --rpcserver=localhost:8443 --tlscertpath=~/.lnd/tls.cert --macaroonpath=~/.pool/regtest/pool.macaroon getinfo`
+
+### Loop daemon remote
+
+```shell
+--httpslisten=[::]:8443
+--uipassword=testnet3
+--network=regtest
+--lnd-mode=integrated
+--loop-mode=remote
+...
+```
+
+1. Open UI, make sure Loop and Pool calls are served correctly
+2. Use `lncli` against LiT
+   `lncli --network regtest getinfo`
+3. Use `pool` and `loop` CLI against `lnd` main gRPC server (port `10009`)
+   - `loop --rpcserver=localhost:10009 --tlscertpath=~/.lnd/tls.cert --macaroonpath=~/.loop/regtest/loop.macaroon terms`
+     **Expect to get an `unknown service` error!**
+   - `pool --rpcserver=localhost:10009 --tlscertpath=~/.lnd/tls.cert --macaroonpath=~/.pool/regtest/pool.macaroon getinfo`
+     **Expect to get an `unknown service` error!**
+4. Use `pool` and `loop` CLI against  LiT proxy server (port `8443`)
+   - `loop --rpcserver=localhost:8443 --tlscertpath=~/.lnd/tls.cert --macaroonpath=~/.loop/regtest/loop.macaroon terms`
+   - `pool --rpcserver=localhost:8443 --tlscertpath=~/.lnd/tls.cert --macaroonpath=~/.pool/regtest/pool.macaroon getinfo`
+
+## `lnd` remote
+
+### All daemons integrated
+
+```shell
+--httpslisten=[::]:8443
+--uipassword=testnet3
+--network=regtest
+--remote.lnd.rpcserver=localhost:10009
+...
+```
+
+1. Open UI, make sure Loop and Pool calls are served correctly
+2. Use `lncli` against LiT
+   `lncli --network regtest --rpcserver=localhost:8443 --tlscertpath=~/.lit/tls.cert --macaroonpath=~/.lnd/data/chain/bitcoin/regtest/admin.macaroon getinfo`
+3. Use `pool` and `loop` CLI against LiT proxy server (port `8443`)
+   - `loop --rpcserver=localhost:8443 --tlscertpath=~/.lit/tls.cert --macaroonpath=~/.loop/regtest/loop.macaroon terms`
+   - `pool --rpcserver=localhost:8443 --tlscertpath=~/.lit/tls.cert --macaroonpath=~/.pool/regtest/pool.macaroon getinfo`
+
+### Loop daemon remote
+
+```shell
+--httpslisten=[::]:8443
+--uipassword=testnet3
+--network=regtest
+--remote.lnd.rpcserver=localhost:10009
+--loop-mode=remote
+...
+```
+
+1. Open UI, make sure Loop and Pool calls are served correctly
+2. Use `lncli` against LiT
+   `lncli --network regtest --rpcserver=localhost:8443 --tlscertpath=~/.lit/tls.cert --macaroonpath=~/.lnd/data/chain/bitcoin/regtest/admin.macaroon getinfo`
+3. Use `pool` and `loop` CLI against LiT proxy server (port `8443`)
+   - `loop --rpcserver=localhost:8443 --tlscertpath=~/.lit/tls.cert --macaroonpath=~/.loop/regtest/loop.macaroon terms`
+   - `pool --rpcserver=localhost:8443 --tlscertpath=~/.lit/tls.cert --macaroonpath=~/.pool/regtest/pool.macaroon getinfo`