Merge JoinMarket-Org/joinmarket-clientserver#1433: Tests: Use different jm_test_datadir for each local user

1370c12a5a Use different jm_test_datadir for each local user (Kristaps Kaupe)

Pull request description:

  Otherwise will have permission denied errors when trying to run tests from a different local users on the same system.

ACKs for top commit:
  AdamISZ:
    tACK 1370c12a5a

Tree-SHA512: f99ca2b10fc7a35f6001e9191ad5374222fd19072a48bd0a8a0c516c69a2d8b53233b8c9308d90f48a3d4419995c75ab8662dec26b47aba230d5ed0ca838ca0f

test/run_tests.sh

@@ -195,7 +195,7 @@ run_jm_tests ()
     fi
     for dir in '/dev/shm' '/Volumes/ramdisk' '/tmp' "${jm_source}/test"; do
         if [[ -d "${dir}" && -r "${dir}" && -w "${dir}" && -x "${dir}" ]]; then
-            jm_test_datadir="${dir}/jm_test_home/.bitcoin"
+            jm_test_datadir="${dir}/jm_test_home-$(whoami)/.bitcoin"
             break
         fi
     done