fix dual chan wip

config/label_templates/203/LabelCARRIERI.prn

@@ -0,0 +1,28 @@
+CT~~CD,~CC^~CT~
+^XA
+~TA000
+~JSN
+^LT0
+^MNW
+^MTT
+^PON
+^PMN
+^LH0,0
+^JMA
+^PR2,2
+~SD20
+^JUS
+^LRN
+^CI27
+^PA0,1,1,0
+^XZ
+^XA
+^MMT
+^PW240
+^LL128
+^LS0
+^FT75,107^BQN,2,2
+^FH\^FDLA,<CN>HOSE<PN>5803647057|<RV>000|<BL>0000|<SC>B1|<AC>YES|<PC>YES|<TN>Errecinque srl|<SN>00001|<OCG>OCG36006208|<DT>16-16-2026|<LT>000000PART|<LV>000^FS
+^FT20,124^A0N,17,25^FH\^CI28^FD{PART}_C1^FS^CI27
+^PQ1,0,1,Y
+^XZ

config/machine_settings/st-ten-6.ini

@@ -17,8 +17,9 @@ digital_io: absent
 digital_io_flush_blow: present
 second_leak_test: present
 barcode_recipe_selection: present
-external_flush_blow: present # EXTERNAL BOX CONTROLLING MULTI-CHANNEL TEST (IF PRESENT), BLOW-CLEANING AND EXTERNAL FLUSH
+external_flush_blow: absent # EXTERNAL BOX CONTROLLING MULTI-CHANNEL TEST (IF PRESENT), BLOW-CLEANING AND EXTERNAL FLUSH
 dual_channel: present
+freefall: absent
 #fixture_id: present
 
 [tecna_t3]
@@ -55,6 +56,7 @@ blow_led:7 # CLEAN INDICATOR
 ch1_led:6 # CHANNEL 1 ACTIVE INDICATOR
 ch2_led:5 # CHANNEL 2 ACTIVE INDICATOR
 flush_led:4 # FLUSH INDICATOR
+#first_output: 8 # Added first_output for freefall
 
 [recipe]
 recipe_name_field: codice_ricetta
@@ -63,6 +65,7 @@ label_template_field: modello_etichetta
 description_field: descrizione
 
 [recipes_defaults]
+tester_discharge_enable: yes
 dimensione_lotto_abilitata:
 tempo_soffiaggio: 5
 tempo_pre_riempimento: 0
@@ -109,7 +112,7 @@ settling_pressure_max_percent: 5
 test_pressure: 7000
 test_time: 10
 test_pressure_qpos: 5 #Q+ Upper test leak limit
-test_pressure_qneg: 15 #Q- Lower test leak limit
+test_pressure_qneg: 15 #Q- Lower test leak limit (tube-tube)
 test_pressure_tt_qpos: 1 # Q+ Upper test leak limit (tube-tube)
 test_pressure_tt_qneg: 5 # Q- Lower test leak limit (tube-tube)
 flush_time: 1

src/scripts/print_labels_csv.py

@@ -1,4 +1,4 @@
-import csv
+import sys
 import time
 from datetime import datetime
 
@@ -7,38 +7,87 @@ from PyQt5.QtWidgets import QApplication
 from src.components.os_label_printer import *
 from src.lib.helpers import ConfigReader
 
-SYSTEM_ID = "test-linux"
+# --- Product Data ---
-CSV_PATH="tmp/promatec.csv"
+PRODUCTS = {
-TEMPLATE="ferrari_flag_qr_only.prn"
+    "5803647057": {"CN": "pressure-hose_SG", "RV": "000", "BL": "00001", "SC": "B1", "AC": "YES", "PC": "NO", "LT": "000000PART", "LV": "000"},
-#TEMPLATE="ferrari_30x16_203.prn"
+    "5803647058": {"CN": "Return-hose-SG", "RV": "000", "BL": "00001", "SC": "B1", "AC": "YES", "PC": "NO", "LT": "000000PART", "LV": "000"},
+    "5803647061": {"CN": "pressure-hose-fn4", "RV": "000", "BL": "00001", "SC": "B1", "AC": "YES", "PC": "NO", "LT": "000000PART", "LV": "000"},
+    "5803648415": {"CN": "NVH-HOSE", "RV": "000", "BL": "00001", "SC": "B1", "AC": "YES", "PC": "NO", "LT": "000000PART", "LV": "000"},
+    "5803688601": {"CN": "NVH-HOSE-xc13-fn4", "RV": "000", "BL": "00001", "SC": "B1", "AC": "YES", "PC": "NO", "LT": "000000PART", "LV": "000"},
+    "5803610921": {"CN": "NVH-HOSE-ESRA", "RV": "000", "BL": "00001", "SC": "B1", "AC": "YES", "PC": "NO", "LT": "000000PART", "LV": "000"},
+    "5803610922": {"CN": "NVH-HOSE-ESRA", "RV": "000", "BL": "00001", "SC": "B1", "AC": "YES", "PC": "NO", "LT": "000000PART", "LV": "000"},
+    "5803610923": {"CN": "NVH-HOSE-ESRA", "RV": "000", "BL": "00001", "SC": "B1", "AC": "YES", "PC": "NO", "LT": "000000PART", "LV": "000"},
+}
 
-config = ConfigReader(system_id=SYSTEM_ID)
+def generate_qr_code(product_pn, product_data, ocg, supplier_name, date_obj, serial_number):
-printer=Os_Label_Printer(config=config,name="label_printer")
+    # Format date as day/week_number/year, e.g., 09/15/2026
+    date_str = date_obj.strftime("%d/%W/%Y")
 
+    qr_string = (
+        f"<CN>{product_data['CN']}|<PN>{product_pn}|<RV>{product_data['RV']}|"
+        f"<BL>{product_data['BL']}|<SC>{product_data['SC']}|<AC>{product_data['AC']}|"
+        f"<PC>{product_data['PC']}|<TN>{supplier_name}|<SN>{serial_number:05d}|"
+        f"<OCG>{ocg}|<DT>{date_str}|<LT>{product_data['LT']}|<LV>{product_data['LV']}"
+    )
+    return qr_string
 
-# timenow = datetime.now()
+def main():
-app = QApplication(sys.argv)
+    SYSTEM_ID = "st-ten-7"
+    TEMPLATE = "LabelCARRIERI.prn"
+    FIXED_OCG = "OCG36006208"
+    
+    config = ConfigReader(system_id=SYSTEM_ID)
+    printer = Os_Label_Printer(config=config, name="label_printer")
+    
+    app = QApplication(sys.argv)
 
-with open(CSV_PATH, "r", encoding="utf-8-sig") as f:
+    while True:
-    reader = csv.DictReader(f)
+        print("\n--- New Label Printing Session ---")
-    for row in reader:
+        print("Available Part Numbers:")
-        START_SN = 1
+        for pn in PRODUCTS.keys():
-        STOP_SN = int(row["quantity"])
+            print(f"- {pn}")
-        PN = row["part_number"]
+        
-        print(f"PART NUMBER # {PN}")
+        selected_pn = ""
+        while selected_pn not in PRODUCTS:
+            selected_pn = input("Enter the Part Number to print: ")
+            if selected_pn not in PRODUCTS:
+                print("Invalid Part Number. Please choose from the list above.")
+
+        product_info = PRODUCTS[selected_pn]
+
+        supplier_name = input("Enter the supplier name: ")
+
+        while True:
+            try:
+                quantity_str = input("Enter the number of labels to print [15]: ")
+                if not quantity_str:
+                    quantity = 15
+                    break
+                quantity = int(quantity_str)
+                if quantity > 0:
+                    break
+                else:
+                    print("Please enter a positive number.")
+            except ValueError:
+                print("Invalid number.")
+
+        print(f"Printing {quantity} labels for PART NUMBER # {selected_pn}")
         input("Press Enter to continue...")
-        for sn in range(START_SN,STOP_SN+2):
+
+        last_label_context = None
+        for sn in range(1, quantity + 1):
             timenow = datetime.now()
             print(f"PRINTING LABEL # {sn}")
+
+            # Pass the incrementing serial number 'sn' to the QR code generator
+            qr_code = generate_qr_code(selected_pn, product_info, FIXED_OCG, supplier_name, timenow, sn)
+
+            # The context now contains the full QR_CODE string with the correct SN,
+            # and a separate SN for any human-readable fields on the label.
             context = {
-                # RECIPE DATA
+                "QR_CODE": qr_code,
-                "PART": PN,
+                "PART": selected_pn,
-                # SERIAL DEFINITION
+                "SN": f"{sn:05d}",
-                "SN": str(sn),
-                "SN4": f"{sn:0>4}",
-                "SN5": f"{sn:0>5}",
-                "SN6": f"{sn:0>6}",
-                # TIME DEFINITION
                 "DATETIME": timenow.strftime("%d/%m/%Y %H:%M:%S"),
                 "DATE": timenow.strftime("%d/%m/%Y"),
                 "TIME": timenow.strftime("%H:%M:%S"),
@@ -51,6 +100,29 @@ with open(CSV_PATH, "r", encoding="utf-8-sig") as f:
                 "SS": timenow.strftime("%S"),
                 "JJJ": timenow.strftime("%j"),
             }
-            printer.print_label(TEMPLATE,context)
+            printer.print_label(TEMPLATE, context)
+            last_label_context = context
+            time.sleep(0.5)
 
-            time.sleep(.5)
+        while True:
+            action = input("\nReprint last label (r), print another product (a), or exit (e)? ").lower()
+            if action == 'r':
+                if last_label_context:
+                    print("Reprinting last label...")
+                    printer.print_label(TEMPLATE, last_label_context)
+                    time.sleep(0.5)
+                else:
+                    print("No label has been printed in this session to reprint.")
+            elif action == 'a':
+                break 
+            elif action == 'e':
+                print("Exiting.")
+                return
+            else:
+                print("Invalid option. Please enter 'r', 'a', or 'e'.")
+        
+        if action == 'a':
+            continue
+
+if __name__ == "__main__":
+    main()

src/ui/test/test.py

@@ -1122,7 +1122,12 @@ class Test(Widget):
 
         # Process any {M43:X:Y} patterns in the barcode format
         processed_barcode_format = self.process_m43_patterns(self.barcode_format, context)
+
+        if processed_barcode_format is None:
+            processed_barcode_format = self.print_step.spec.get("barcode", "-")
+
         formatted_barcode = processed_barcode_format.format(**context)
+
         context['BCODE'] = formatted_barcode
         self.printed_barcode = formatted_barcode
         if self.archived is not None:

src/ui/test_leak/test_leak.py

@@ -24,69 +24,91 @@ class Test_Leak(Test_Test):
         self.recipe_written = False
         self.start_b.clicked.connect(self.start_test)
         self.stop_b.clicked.connect(self.stop_test)
-        self.show_instruction_b.setVisible("show_instructions" in self.parent.config["hardware_config"].keys())
+
+        hardware_config = self.config.get("hardware_config", {})
+        self.show_instruction_b.setVisible("show_instructions" in hardware_config)
         self.show_instruction_b.clicked.connect(self.show_instruction)
 
         # Connect to the tecna_error_signal to handle connection issues
-        self.components[self.tester_component].tecna_error_signal.connect(self.handle_modbus_error)
+        if self.tester_component in self.components:
+            self.components[self.tester_component].tecna_error_signal.connect(self.handle_modbus_error)
 
     def show_instruction(self):
         dialog=Dialog()
-        dialog.setCentralWidget(Test_Instructions_Reminder(recipe=self.parent.recipe,bench_name=self.parent.config.machine_id))
+        dialog.setCentralWidget(Test_Instructions_Reminder(recipe=self.recipe,bench_name=self.config.get("machine_id", "")))
         dialog.show()
 
     def reset(self):
-        self.components[self.tester_component].stop_test()
+        if self.tester_component in self.components:
+            self.components[self.tester_component].stop_test()
         super().reset()
 
     def stop_test(self):
-        self.components[self.tester_component].stop_test()
+        if self.tester_component in self.components:
+            self.components[self.tester_component].stop_test()
         self.display_text(text="PROVA INTERROTTA", bg_color="yellow")
         time.sleep(1)
         self.start_b.setEnabled(True)
         self.stop_b.setEnabled(False)
 
     def start_test(self):
-        if self.step.step_type == "test_freefall_leak":
+        # 1. HANDLE FREEFALL SPECIFIC OUTPUTS
-            self.set_digital_out("first_output", 1) # Set high
+        hardware_config = self.config.get("hardware_config", [])
-        # print extra labels
+        if self.step.step_type == "test_freefall_leak" and hardware_config.get("freefall") == "present":
+            self.set_digital_out("first_output", 1, component_name="digital_io_flush_blow")
+        else:
+            self.log.info("Skipping Bit 8: Freefall hardware is absent.")
+        # 2. PRINT LABELS IF NECESSARY
         if self.step.step_type == "leak_1":
             self.parent.print_extra_labels()
 
-        # SELECT TEST CHANNEL
+        # 3. CHANNEL SELECTION (with defensive checks)
-        if self.parent.config["hardware_config"].get("external_flush_blow", None) == "present":
+        hardware_config = self.config.get("hardware_config", {})
-            if self.parent.config["hardware_config"].get("dual_channel", None) == "present":
+        if hardware_config.get("dual_channel") == "present":
-                chan_sel = self.step.spec["chan_sel"] # 0=CH1, 1=CH2
+            is_freefall_machine = hardware_config.get("freefall") == "present"
-                self.set_digital_out("out_channel_select", chan_sel)
+            chan_sel = self.step.spec.get("chan_sel", 0)
-                self.set_digital_out("in_channel_select", chan_sel)
-                time.sleep(VALVE_TIME)
 
-                # SET LED INDICATORS
+            if is_freefall_machine:
-                if chan_sel == 0:
+                chan_sel = 1 - chan_sel
-                    self.set_digital_out("ch1_led", True)
-                else:
-                    self.set_digital_out("ch2_led", True)
 
-            self.blow_on=True
+            self.set_digital_out("out_channel_select", chan_sel, component_name="digital_io_flush_blow")
+            self.set_digital_out("in_channel_select", chan_sel, component_name="digital_io_flush_blow")
+
+            if chan_sel == 0:
+                self.set_digital_out("ch1_led", True, component_name="digital_io_flush_blow")
+                self.set_digital_out("ch2_led", False, component_name="digital_io_flush_blow")
+            else:
+                self.set_digital_out("ch2_led", True, component_name="digital_io_flush_blow")
+                self.set_digital_out("ch1_led", False, component_name="digital_io_flush_blow")
+
+            time.sleep(VALVE_TIME)
+
+        # 4. EXTERNAL FLUSH / BLOW LOGIC
+        if hardware_config.get("external_flush_blow") == "present":
+            self.blow_on = True
             self.display_text("SOFFIAGGIO IN CORSO...")
-            self.set_digital_out("blow_led",True)
+            self.set_digital_out("blow_led", True, component_name="digital_io_flush_blow")
-            self.set_digital_out("blow_on",True)
+            self.set_digital_out("blow_on", True, component_name="digital_io_flush_blow")
             time.sleep(VALVE_TIME)
-            self.set_digital_out("flush_on", True)
+            self.set_digital_out("flush_on", True, component_name="digital_io_flush_blow")
-            blow_time=int(self.step.spec.get('ext_blow_time',3))
+
-            self.set_digital_out("blow_led", True)
+            blow_time = int(self.step.spec.get('ext_blow_time', 3))
             time.sleep(blow_time)
-            self.set_digital_out("blow_led", False)
+
-            self.set_digital_out("blow_on", False)
+            self.set_digital_out("blow_led", False, component_name="digital_io_flush_blow")
+            self.set_digital_out("blow_on", False, component_name="digital_io_flush_blow")
             time.sleep(VALVE_TIME)
-            self.set_digital_out("flush_on", False)
+            self.set_digital_out("flush_on", False, component_name="digital_io_flush_blow")
 
-            if self.parent.config["hardware_config"].get("dual_channel", None) != "present":
+        # 5. FALLBACK LED FOR SINGLE CHANNEL MACHINES
-                self.set_digital_out("ch1_led", True)
+        elif hardware_config.get("dual_channel") != "present":
+            self.set_digital_out("ch1_led", True, component_name="digital_io")
 
+        # 6. TRIGGER PHYSICAL TESTER
         self.blow_on = False
         if not self.simulate:
-            self.components[self.tester_component].start_test()
+            if self.tester_component in self.components:
+                self.components[self.tester_component].start_test()
 
 
     def start(self, recipe=None, step=None, pieces=None):
@@ -138,15 +160,18 @@ class Test_Leak(Test_Test):
         if self.step.spec.get("autotest", False):  # IF AUTOTESTING UPLOAD RECIPE EVERY TIME
             self.recipe_written = False
 
-        if self.parent.config["hardware_config"].get("second_leak_test", "absent") == "present":  # IF SECOND LEAK TEST ENABLED UPLOAD RECIPE EVERY TIME
+        hardware_config = self.config.get("hardware_config", {})
+        if hardware_config.get("second_leak_test") == "present":  # IF SECOND LEAK TEST ENABLED UPLOAD RECIPE EVERY TIME
             self.recipe_written = False
 
         if not self.recipe_written:
-            self.components[self.tester_component].write_recipe(self.recipe, self.step)
+            if self.tester_component in self.components:
+                self.components[self.tester_component].write_recipe(self.recipe, self.step)
             self.recipe_written=True
 
-        self.get_connection = self.components[self.tester_component].out.connect(self.get)
+        if self.tester_component in self.components:
-        self.components[self.tester_component].resume()
+            self.get_connection = self.components[self.tester_component].out.connect(self.get)
+            self.components[self.tester_component].resume()
         if self.parent_assembly_widget is not None:
             self.display_text(text="ATTENDERE")
         self.start_b.setEnabled(False)
@@ -216,7 +241,8 @@ class Test_Leak(Test_Test):
 
         # AUTO START SECOND TEST
         if step.step_type == "leak_2":
-            if self.config["hardware_config"].get("dual_channel", "absent") == "present":
+            hardware_config = self.config.get("hardware_config", {})
+            if hardware_config.get("dual_channel") == "present":
                 self.recipe_written = False
                 time.sleep(1)
                 self.start_b.setEnabled(True)
@@ -230,10 +256,12 @@ class Test_Leak(Test_Test):
 
     def stop(self):
         # disable test loop
-        self.components[self.tester_component].stop_test()
+        if self.tester_component in self.components:
-        self.components[self.tester_component].pause()
+            self.components[self.tester_component].stop_test()
-        self.disconnect(self.get_connection)
+            self.components[self.tester_component].pause()
-        self.set_digital_out("first_output", 0) # Set low when test stops
+        if self.get_connection:
+            self.disconnect(self.get_connection)
+        self.set_digital_out("first_output", 0, component_name="digital_io_flush_blow") # Set low when test stops
         super().stop()
         self.start_b.setEnabled(False)
         self.stop_b.setEnabled(False)
@@ -305,7 +333,7 @@ class Test_Leak(Test_Test):
                         # Let end-of-measure be derived by saver when possible
                     }
 
-        if "Running test: result" in data[self.tester_component]:
+        if self.tester_component in data and "Running test: result" in data[self.tester_component]:
             # TEST ENDED, CHECK RESULT
             result = data[self.tester_component]["Running test: result"]
             step=self.step.spec.get("autotest", "")
@@ -333,26 +361,27 @@ class Test_Leak(Test_Test):
                     self.parent.autostart_next_step = True
 
             # SET DIGITAL OUTPUTS
-
+            hardware_config = self.config.get("hardware_config", {})
-            if self.parent.config["hardware_config"].get("external_flush_blow", None) == "present":
+            if hardware_config.get("external_flush_blow") == "present":
                 self.blow_on = True
-                if self.parent.config["hardware_config"].get("dual_channel", None) != "present":
+                if hardware_config.get("dual_channel") != "present":
-                    self.set_digital_out("ch1_led", False)
+                    # Corrected: Use 'digital_io' for single-channel machines
+                    self.set_digital_out("ch1_led", False, component_name="digital_io")
 
                 self.display_text("SCARICO ESTERNO IN CORSO...")
-                self.set_digital_out("flush_led", True)
+                self.set_digital_out("flush_led", True, component_name="digital_io_flush_blow")
-                self.set_digital_out("flush_on", True)
+                self.set_digital_out("flush_on", True, component_name="digital_io_flush_blow")
                 time.sleep(VALVE_TIME)
                 flush_time = int(self.step.spec.get('ext_flush_time',3))
                 time.sleep(flush_time)
-                self.set_digital_out("flush_led", False)
+                self.set_digital_out("flush_led", False, component_name="digital_io_flush_blow")
                 #self.set_digital_out("flush_on", False)
 
-            if self.parent.config["hardware_config"].get("dual_channel", None) == "present":
+            if hardware_config.get("dual_channel") == "present":
-                self.set_digital_out("out_channel_select", False)
+                self.set_digital_out("out_channel_select", False, component_name="digital_io_flush_blow")
-                self.set_digital_out("in_channel_select", False)
+                self.set_digital_out("in_channel_select", False, component_name="digital_io_flush_blow")
-                self.set_digital_out("ch1_led", False)
+                self.set_digital_out("ch1_led", False, component_name="digital_io_flush_blow")
-                self.set_digital_out("ch2_led", False)
+                self.set_digital_out("ch2_led", False, component_name="digital_io_flush_blow")
         else:
             #result = None
             ok = None
@@ -389,7 +418,7 @@ class Test_Leak(Test_Test):
             l.setText(str(v))
 
         # Check if there's a connection issue before displaying test status
-        if hasattr(self.components[self.tester_component], 'connection_lost') and self.components[self.tester_component].connection_lost:
+        if self.tester_component in self.components and hasattr(self.components[self.tester_component], 'connection_lost') and self.components[self.tester_component].connection_lost:
             # Connection is lost, don't display test status
             # The handle_modbus_error method will display the appropriate message
             # Just ensure buttons are in the correct state
@@ -398,7 +427,7 @@ class Test_Leak(Test_Test):
             return
 
         # Check if the connection was just restored
-        if hasattr(self.components[self.tester_component], '_previous_connection_lost') and self.components[self.tester_component]._previous_connection_lost:
+        if self.tester_component in self.components and hasattr(self.components[self.tester_component], '_previous_connection_lost') and self.components[self.tester_component]._previous_connection_lost:
             # Connection was just restored, don't display test status yet
             # The handle_modbus_error method will display the appropriate message
             # Just ensure buttons are in the correct state
@@ -410,7 +439,7 @@ class Test_Leak(Test_Test):
         if d.get("Running test: active phase", None) in {
             "WAITING START",
             "ATTESA START",
-            "END TEST, WAITING THE START OF A NEW TEST"
+            "END TEST, WAITING THE START OF A NEW TEST",
             "FINE TEST",
             "STANDBY",
             "PRESSIONE BASSA",
@@ -469,12 +498,26 @@ class Test_Leak(Test_Test):
             QApplication.processEvents()
 
     def set_digital_out(self,out_name=None,state=1,component_name="digital_io"):
+        # First, check if the component is even loaded for this machine
+        if component_name not in self.components:
+            # If not, just ignore the call. This is the expected behavior for machines
+            # without this specific hardware.
+            return
+
         if self.io_ok:
-            bit = int(self.parent.config[component_name][out_name])
+            component_config = self.config.get(component_name, {})
-            ret = self.components[component_name].set_bit_verify(0,bit,state)
+            bit_val = component_config.get(out_name)
-            if not ret:
+            if bit_val is not None:
-                QMessageBox.critical(None, "ERRORE", f"ERRORE I/O DIGITALE - VERIFICARE CONNESSIONE USB")
+                bit = int(bit_val)
-                self.io_ok = False
+                # Now we can safely access the component
+                ret = self.components[component_name].set_bit_verify(0,bit,state)
+                if not ret:
+                    QMessageBox.critical(None, "ERRORE", f"ERRORE I/O DIGITALE - VERIFICARE CONNESSIONE USB")
+                    self.io_ok = False
+            else:
+                # This warning is still useful for debugging configurations
+                print(f"Warning: Output '{out_name}' not found in '{component_name}' config for this machine.")
+
 
     def save_last(self):
         if self.last is None:
@@ -502,7 +545,8 @@ class Test_Leak(Test_Test):
                         bg_color="red", text_color="white"
                     )
                 # Stop the test when a connection error is detected
-                self.parent.fail_cycle()
+                if self.parent:
+                    self.parent.fail_cycle()
                 # Always disable start button and enable stop button during connection issues
                 self.start_b.setEnabled(False)
                 self.stop_b.setEnabled(True)
@@ -525,7 +569,8 @@ class Test_Leak(Test_Test):
                     bg_color="green", text_color="white"
                 )
             # Reset the flag immediately to ensure the reconnection message is displayed
-            self.components[self.tester_component]._previous_connection_lost = False
+            if self.tester_component in self.components:
+                self.components[self.tester_component]._previous_connection_lost = False
             # Force a UI update to ensure the message is displayed
             QApplication.processEvents()
             # Always disable start button and enable stop button during connection issues

src/ui/test_test/test_test.py

@@ -236,8 +236,18 @@ class Test_Test(Widget):
             return
 
     def resizeEvent(self, event=None):
-        if hasattr(self, "img_l"):
+        # 1. Check if the label widget exists
-            self.img_l.setPixmap(self.img.scaled(self.img_l.width(), self.img_l.height(), Qt.KeepAspectRatio, Qt.SmoothTransformation))
+        # 2. Check if the image attribute has been initialized
+        # 3. Check if the image is not None
+        if hasattr(self, "img_l") and hasattr(self, "img") and self.img is not None:
+            # Ensure the label has a valid width/height to avoid scaling errors
+            if self.img_l.width() > 0 and self.img_l.height() > 0:
+                self.img_l.setPixmap(self.img.scaled(
+                    self.img_l.width(),
+                    self.img_l.height(),
+                    Qt.KeepAspectRatio,
+                    Qt.SmoothTransformation
+                ))
 
     def challenge_admin(self, info):
         if not self.admin_challenged: