lua proc started only if lua test items present.

doc/examples/example_simple.tum

@@ -22,5 +22,6 @@ main:
 
       - sleep:
           name: sleep item
-          dialog: True
+          dialog: true
           timeout: 3600
+          no_fail: true

doc/examples/param.yaml

@@ -9,9 +9,9 @@ global_loop_param_num: [1, 2, 3]
 # Plot parameters
 plot_log_path: /tmp/testium_plot/$(testrun_date)/$(testrun_time)/
 
-python_path: $(home)/tmp/tum_venv/bin/python3
+# python_path: $(home)/tmp/tum_venv/bin/python3
 
-lua_path: /usr/bin/lua
+# lua_path: /usr/bin/lua
 lua_env:
   LUA_PATH: /usr/share/lua/5.4/?.lua;/usr/local/share/lua/5.4/?.lua;/usr/local/share/lua/5.4/?/init.lua;/usr/share/lua/5.4/?/init.lua;/usr/local/lib/lua/5.4/?.lua;/usr/local/lib/lua/5.4/?/init.lua;/usr/lib/lua/5.4/?.lua;/usr/lib/lua/5.4/?/init.lua;./?.lua;./?/init.lua;/home/francois/.luarocks/share/lua/5.4/?.lua;/home/francois/.luarocks/share/lua/5.4/?/init.lua
   LUA_CPATH: /usr/local/lib/lua/5.4/?.so;/usr/lib/lua/5.4/?.so;/usr/local/lib/lua/5.4/loadall.so;/usr/lib/lua/5.4/loadall.so;./?.so;/home/francois/.luarocks/lib/lua/5.4/?.so

src/testium/interpreter/process.py

@@ -9,6 +9,7 @@ import traceback
 import libs.testium as tm
 from interpreter.utils.params import expanse
 from interpreter.utils.string_queue import StringQueue
+from interpreter.utils.tum_except import ETUMRuntimeError
 from interpreter.utils.test_ctrl import TestSetController
 from interpreter.utils.test_init import (
     env_init,
@@ -19,6 +20,7 @@ from interpreter.utils.test_init import (
     backup_gd,
     restore_gd,
 )
+from interpreter.utils.constants import TestItemType as cst_type
 from interpreter.test_set import TestSet
 from interpreter.utils.stdout_redirect import stdio_redir
 from interpreter.utils.tum_except import print_exception
@@ -62,7 +64,8 @@ class TestProcess(Process):
 
                 # Load the test file
                 test_dict, cfg_files = load_test(
-                    self.__fname, test_dir, self.__cfgf, self.__defs)
+                    self.__fname, test_dir, self.__cfgf, self.__defs
+                )
 
                 # Backup the global dict in case of restart of the test
                 gdict = backup_gd()
@@ -76,15 +79,19 @@ class TestProcess(Process):
                 # Thread for incoming control commands
                 self.init_commands(test_set)
                 self.cmd_th = Thread(
-                    target=self.process_control_commands, args=[self.__tctrl])
+                    target=self.process_control_commands,
-                self.cmd_th.daemon = True
+                    args=[self.__tctrl],
+                    daemon=True,
+                )
                 self.cmd_th.start()
 
                 test_set.report_path = locate_report_file(test_set.report_path)
 
                 # Python & lua functions call subprocess initialization
                 py_fproc = py_func_call_init(tm.gd("python_path", ""), api_request)
-                lua_fproc = lua_func_call_init(tm.gd("lua_path", "/usr/bin/lua"), api_request)
+                lua_fproc = None
+                if test_set.isTestTypePresent(cst_type.TYPE_LUA_FUNCTION):
+                    lua_fproc = lua_func_call_init(tm.gd("lua_path", ""), api_request)
 
                 self.__loaded = True
 
@@ -101,10 +108,22 @@ class TestProcess(Process):
                             try:
                                 test_run_init()
                                 print(test_run_header())
+                                # start the process for executing external python
                                 py_fproc.start()
-                                lua_fproc.start()
+                                if not py_fproc.wait_ready(10):
-                                lua_fproc.wait_ready()
+                                    raise ETUMRuntimeError(
-                                py_fproc.wait_ready()
+                                        f"""Impossible to start the external python execution process.
+Is the python path correct ?
+python_path = {tm.gd("python_path", "no python path defined")}"""
+                                    )
+                                if lua_fproc is not None:
+                                    lua_fproc.start()
+                                    if not lua_fproc.wait_ready(10):
+                                        raise ETUMRuntimeError(
+                                            f"""Impossible to start the external lua execution process.
+Is the lua path correct ?
+lua_path = {tm.gd("lua_path", "no lua path defined")}"""
+                                        )
                                 test_set.execute()
                             finally:
                                 if test_set.success():
@@ -116,9 +135,10 @@ class TestProcess(Process):
                         finally:
                             # Stop function execution process
                             py_fproc.stop()
-                            lua_fproc.stop()
-                            lua_fproc.join()
                             py_fproc.join()
+                            if lua_fproc is not None:
+                                lua_fproc.stop()
+                                lua_fproc.join()
                             self.__exec = False
                             # Sends signal to the GUI
                             self.send_finished()
@@ -162,9 +182,7 @@ class TestProcess(Process):
         stdio_redir.stop()
 
     def send_finished(self):
-        status = {'id': None,
+        status = {"id": None, "name": "test_process", "status": "finished"}
-                  'name': "test_process",
-                  'status': 'finished'}
         self.__squeue.put(status)
 
     def execute(self):

src/testium/interpreter/test_set.py

@@ -224,7 +224,9 @@ class TestSet:
 
         return res
 
-    def __findItemByIdRecursively(self, item_id, parent):
+    def __findItemById(self, item_id, parent=None):
+        if parent is None:
+            parent = self._rootItem
         res = None
         i = 0
         while (res is None) and (i < parent.childCount()):
@@ -239,9 +241,21 @@ class TestSet:
 
         return res
 
-    def __findItemById(self, item_id):
+    def isTestTypePresent(self, test_type: cst_type, parent=None):
-        item = self.__findItemByIdRecursively(item_id, self._rootItem)
+        if parent is None:
-        return item
+            parent = self._rootItem
+        res = False
+        i = 0
+        while (not res) and (i < parent.childCount()):
+            if parent.child(i).type() == test_type.item_name:
+                res = True
+            i = i + 1
+
+        i = 0
+        while (not res) and (i < parent.childCount()):
+            res = self.isTestTypePresent(test_type, parent.child(i))
+            i = i + 1
+        return res
 
     def getEnabledState(self, item_id):
         """Return True if the item is enabled, False otherwise."""

src/testium/interpreter/utils/lua_func_exec.py

@@ -44,15 +44,19 @@ def is_lua_interpreter(path: str, timeout=2) -> bool:
 class LuaFuncExecEngine:
 
     def __init__(self, lua_path="", request_handler=None):
-        if shutil.which(lua_path) is None:
+        if lua_path != "":
-            raise ETUMRuntimeError(
+            if shutil.which(lua_path) is None:
-                f"The passed lua path is not pointing to an executable: '{lua_path}'"
+                raise ETUMRuntimeError(
-            )
+                    f"The passed lua path is not pointing to an executable: '{lua_path}'"
+                )
 
-        if not is_lua_interpreter(lua_path):
+            if not is_lua_interpreter(lua_path):
-            raise ETUMRuntimeError(
+                raise ETUMRuntimeError(
-                f"The passed executable is not a lua interpreter: '{lua_path}'"
+                    f"The passed executable is not a lua interpreter: '{lua_path}'"
-            )
+                )
+        else:
+            lua_path = "/usr/bin/lua"
+            tm.setgd("lua_path", lua_path)
 
         self._lpath = lua_path
         self._req_handler = request_handler

src/testium/interpreter/utils/py_func_exec.py

@@ -57,6 +57,7 @@ class PyFuncExecEngine:
 
         else:
             python_path = sys.executable
+            tm.setgd("python_path", python_path)
 
         self._ppath = python_path
         self._req_handler = request_handler