fix test_launch_ps test=develop (#23333)

python/paddle/fluid/tests/unittests/CMakeLists.txt

@@ -302,7 +302,7 @@ if(WITH_DISTRIBUTE)
             # NOTE. test_launch only work in gpu collective mode
             bash_test_modules(test_launch MODULES test_launch.sh  ENVS PADDLE_BINARY_DIR=${PADDLE_BINARY_DIR})
         endif()
-        bash_test_modules(test_launch_ps MODULES test_launch_ps.sh)
+        bash_test_modules(test_launch_ps MODULES test_launch_ps.sh ENVS PADDLE_BINARY_DIR=${PADDLE_BINARY_DIR})
 
         set(dist_ut_port 1000)
         foreach(TEST_OP ${DIST_TEST_OPS})

python/paddle/fluid/tests/unittests/test_launch_ps.sh

 #!/bin/bash
 set -e
 # use default values
-python -m paddle.distributed.launch_ps fleet_ps_training.py 2> ut.elog
+launch_py=${PADDLE_BINARY_DIR}/python/paddle/distributed/launch_ps.py
+python ${launch_py} fleet_ps_training.py 2> ut.elog
 
 if grep -q "server are killed" ut.elog; then
     echo "succeed"