diff --git a/tests/plat/build.lua b/tests/plat/build.lua
index 26676b0b1..813a298ba 100644
--- a/tests/plat/build.lua
+++ b/tests/plat/build.lua
@@ -51,16 +51,23 @@ definerule("plat_testsuite",
 				}
 			}
 
+			local methoddep = nil
+			local methodpath = e.method
+			if e.method:find("%+") then
+				methoddep = e.method
+				methodpath = "%{ins[4]}"
+			end
 			tests[#tests+1] = normalrule {
 				name = fs,
 				outleaves = { e.plat.."-"..fs.."-testlog.txt" },
 				ins = {
 					bin,
 					"tests/plat/testdriver.sh",
-					"util/build+testrunner"
+					"util/build+testrunner",
+					methoddep,
 				},
 				commands = {
-					"%{ins[2]} "..e.method.." %{ins[1]} 15 %{ins[3]} > %{outs}; true",
+					"%{ins[2]} "..methodpath.." %{ins[1]} 15 %{ins[3]} > %{outs}; true",
 				}
 			}
 		end
diff --git a/tests/plat/testdriver.sh b/tests/plat/testdriver.sh
index 07f206a5e..1a4568db7 100755
--- a/tests/plat/testdriver.sh
+++ b/tests/plat/testdriver.sh
@@ -4,6 +4,8 @@ img=$2
 timeout=$3
 timeoutprog=$4
 
+set -e
+
 errcho() {
     >&2 echo "$*"
 }
@@ -36,8 +38,7 @@ get_test_output() {
             ;;
 
         *)
-            errcho "Error: $method not known by testdriver"
-            exit 1
+			$timeoutprog -t $timeout -- $method $img 2>&1
             ;;
     esac
 }