Test worked Locally 1

Author: prathameshnium

Utilities/GPIB_Instrument_Scanner_GUI_v4.py

@@ -26,7 +26,7 @@
 # -------------------------------------------------------------------------------
 
 
-class GpibScannerGUI:
+class GPIB_Instrument_Scanner_GUI:
     """The main GUI application class for scanning VISA instruments."""
     PROGRAM_VERSION = "2.0"
     # --- Styling constants from PICA Launcher ---
@@ -285,7 +285,7 @@ def run_scan_thread(self):
 def main():
     """Initializes the application."""
     root = tk.Tk()
-    GpibScannerGUI(root)
+    GPIB_Instrument_Scanner_GUI(root)
     root.mainloop()
 
 

deployment/Picachu.py

@@ -1,12 +1,60 @@
+# tests/conftest.py
+"""
+This file contains shared fixtures for the PICA test suite.
+Fixtures defined here are automatically available to all test files.
+"""
 import pytest
-import matplotlib
+from unittest.mock import MagicMock, patch
+import sys
 
-# Force matplotlib to not use any X11/Windows GUI backend
-# This prevents "KeyError" and display issues during testing
-matplotlib.use('Agg')
 
+@pytest.fixture
+def mock_tkinter():
+    """
+    A comprehensive pytest fixture that mocks essential libraries (tkinter,
+    matplotlib, pyvisa, etc.) to prevent any actual GUI rendering or hardware
+    communication during tests. This is crucial for CI/CD environments.
 
-@pytest.fixture(autouse=True)
-def reset_matplotlib_params():
-    """Ensures matplotlib config is clean for every test."""
-    matplotlib.rcdefaults()
+    It correctly mocks matplotlib as a package to allow submodule imports
+    like 'from matplotlib.figure import Figure'.
+    """
+    # Create a mock for matplotlib that acts like a package
+    mock_matplotlib = MagicMock()
+    mock_matplotlib.figure.Figure = MagicMock()
+    mock_matplotlib.backends.backend_tkagg.FigureCanvasTkAgg = MagicMock(
+        return_value=MagicMock(get_tk_widget=MagicMock())
+    )
+
+    # Create a mock for pymeasure that acts like a package
+    mock_pymeasure = MagicMock()
+    mock_pymeasure.instruments.keithley.Keithley2400 = MagicMock()
+    mock_pymeasure.instruments.keithley.Keithley6517B = MagicMock()
+    mock_pymeasure.instruments.agilent.AgilentE4980 = MagicMock()
+    
+    # Mock libraries that would otherwise create windows or require hardware
+    mocked_modules = {
+        'tkinter': MagicMock(),
+        'tkinter.ttk': MagicMock(),
+        'tkinter.messagebox': MagicMock(),
+        'tkinter.filedialog': MagicMock(),
+        'tkinter.simpledialog': MagicMock(),
+        'tkinter.font': MagicMock(),
+        'matplotlib': mock_matplotlib,
+        'matplotlib.pyplot': MagicMock(),
+        'matplotlib.figure': mock_matplotlib.figure,
+        'matplotlib.backends': mock_matplotlib.backends,
+        'matplotlib.backends.backend_tkagg': mock_matplotlib.backends.backend_tkagg,
+        'pyvisa': MagicMock(), # Mock pyvisa
+        'pymeasure': mock_pymeasure,
+        'pymeasure.instruments': mock_pymeasure.instruments,
+        'pymeasure.instruments.keithley': mock_pymeasure.instruments.keithley,
+        'PIL': MagicMock(),
+        'PIL.Image': MagicMock(),
+        'PIL.ImageTk': MagicMock(),
+    }
+    with patch.dict('sys.modules', {
+        **mocked_modules,
+        'sys': sys.modules['sys'],
+        'warnings': sys.modules['warnings'],
+    }) as patched_modules:
+        yield