test: Only mess with PATH inside test environment

test/setup-root.sh

@@ -14,12 +14,12 @@ if [ ! -f "$srcdir"/../config.status ]; then
     cp "${srcdir}/test-root/Makefile" test-root/
     make -C test-root/
     config_h='./config.h'
-    echo "export PATH=/bin:/sbin" > test.env
+    echo "export TESTENV_PATH=/bin:/sbin" > test.env
 else
     make -C ../ DESTDIR="$(pwd)/test-root/" install
     FINITBIN=../../src/finit make -C test-root/
     config_h='../config.h'
-    echo "export PATH=/bin:/sbin:$PREFIX/sbin:$PREFIX/bin" > test.env
+    echo "export TESTENV_PATH=/bin:/sbin:$PREFIX/sbin:$PREFIX/bin" > test.env
 fi
 
 echo "export FINIT_CONF=$(grep FINIT_CONF $config_h | cut -d' ' -f3 | cut -d'"' -f2)" >> test.env

test/testenv_enter.sh

@@ -20,4 +20,7 @@ else
     exit 1
 fi
 
+PATH="$TESTENV_PATH"
+export PATH
+
 "$(dirname "$0")"/testenv_exec.sh "$target" "$cmd" "$@"

test/testenv_exec.sh

@@ -21,6 +21,9 @@ export PS2='> '
 export PS3='#? '
 export PS4='+ '
 
+PATH="$TESTENV_PATH"
+export PATH
+
 "$nsenter" \
     --preserve-credentials \
     --user \

test/testenv_start.sh

@@ -13,6 +13,9 @@ export PS2='> '
 export PS3='#? '
 export PS4='+ '
 
+PATH="$TESTENV_PATH"
+export PATH
+
 # Not supported by Busybox unshare:
 #  --cgroup --time
 exec "$unshare" \