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prathameshniumprathameshnium
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mock time.sleep
mock time.sleep
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‎tests/test_deep_simulation.py‎

Lines changed: 67 additions & 68 deletions
Original file line numberDiff line numberDiff line change
@@ -1,12 +1,10 @@
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import unittest
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import sys
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import os
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import types
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from unittest.mock import MagicMock, patch, call
4+
from unittest.mock import MagicMock, patch, mock_open
65

76
# -------------------------------------------------------------------------
8-
# 1. SETUP & GLOBAL MOCKS
9-
# We mock the GUI libraries so they don't interfere with the backend logic.
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# 1. GLOBAL MOCKS
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# -------------------------------------------------------------------------
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sys.modules['tkinter'] = MagicMock()
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sys.modules['tkinter.ttk'] = MagicMock()
@@ -18,141 +16,142 @@
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class TestDeepSimulation(unittest.TestCase):
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2018
def setUp(self):
21-
# Add project root to path so we can import your scripts
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self.root_dir = os.path.abspath(os.path.join(os.path.dirname(__file__), '..'))
2320
if self.root_dir not in sys.path:
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sys.path.insert(0, self.root_dir)
2522

2623
# =========================================================================
27-
# TEST 1: KEITHLEY 2400 I-V SWEEP LOGIC
28-
# Purpose: Verify the exact sequence of current sourcing and voltage measuring.
24+
# TEST 1: KEITHLEY 2400 (PASSED previously, kept same)
2925
# =========================================================================
3026
def test_keithley2400_iv_protocol(self):
3127
print("\n[SIMULATION] Testing Keithley 2400 I-V Protocol...")
32-
33-
# A. Mock the PyMeasure Keithley object
3428
with patch('pymeasure.instruments.keithley.Keithley2400') as MockK2400:
35-
36-
# Create the 'Spy' instrument
3729
spy_inst = MockK2400.return_value
38-
# Simulate a voltage reading of 1.23 Volts whenever asked
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spy_inst.voltage = 1.23
40-
41-
# B. Mock User Inputs (Current Limit=100uA, Step=10uA, File='test')
4231
fake_inputs = ['100', '10', 'test_output']
4332

44-
# C. Mock File Saving (Prevent creating real .txt files)
4533
with patch('builtins.input', side_effect=fake_inputs), \
4634
patch('pandas.DataFrame.to_csv') as mock_save:
4735

48-
# D. Run the Backend Script
4936
module_name = "Keithley_2400.Backends.IV_K2400_Loop_Backend_v10"
5037
if module_name in sys.modules: del sys.modules[module_name]
5138
try:
5239
__import__(module_name)
53-
except Exception as e:
54-
print(f" [Note] Script finished with: {e} (Expected if script exits)")
40+
except Exception:
41+
pass
5542

56-
# =============================================================
57-
# THE "HARD" TESTS (Behavior Verification)
58-
# =============================================================
59-
60-
# 1. Did we turn the output ON?
6143
spy_inst.enable_source.assert_called()
6244
print(" -> Verified: Source Output Enabled")
63-
64-
# 2. Did we ramp current?
65-
self.assertTrue(spy_inst.ramp_to_current.called, "Failed to ramp current")
45+
self.assertTrue(spy_inst.ramp_to_current.called)
6646
print(" -> Verified: Current Ramping Active")
67-
68-
# 3. Did we turn it OFF safely at the end?
6947
spy_inst.shutdown.assert_called()
7048
print(" -> Verified: Safety Shutdown Triggered")
7149

7250
# =========================================================================
73-
# TEST 2: LAKESHORE 350 TEMPERATURE CONTROL
74-
# Purpose: Verify it reads temperature and sets heater ranges via PyVISA.
51+
# TEST 2: LAKESHORE 350 (FIXED with Circuit Breaker)
7552
# =========================================================================
7653
def test_lakeshore_visa_communication(self):
7754
print("\n[SIMULATION] Testing Lakeshore 350 SCPI Commands...")
7855

79-
# A. Mock PyVISA Resource Manager
8056
with patch('pyvisa.ResourceManager') as MockRM:
8157
mock_rm_instance = MockRM.return_value
8258
spy_instr = MagicMock()
8359
mock_rm_instance.open_resource.return_value = spy_instr
8460

85-
# Simulate the Instrument responding to "*IDN?"
86-
spy_instr.query.return_value = "LSCI,MODEL350,123456,1.0"
87-
88-
# B. Run the Lakeshore Module
89-
module_name = "Lakeshore_350_340.Backends.T_Control_L350_Simple_Backend_v10"
90-
91-
# --- FIX IS HERE: Valid inputs (Start < End < Cutoff) ---
92-
# Inputs: Start=10, End=300, Rate=10, Safety=350
93-
fake_inputs = ['10', '300', '10', '350']
61+
# 1. Mock Instrument Responses
62+
# We provide a sequence of responses: IDN, then Temperature readings
63+
spy_instr.query.side_effect = [
64+
"LSCI,MODEL350,123456,1.0", # *IDN? response
65+
"10.0", # Initial Temp
66+
"10.0", # Loop 1 Temp
67+
"10.1", # Loop 2 Temp
68+
"10.1", # Loop 3 Temp
69+
"10.1", # Loop 4 Temp
70+
"10.1", # Loop 5 Temp
71+
"300.0" # Ramp Target (if it gets there)
72+
]
73+
74+
# 2. Mock Inputs (Start=10, End=300, Rate=10, Cutoff=350)
75+
fake_inputs = ['10', '300', '10', '350']
9476

77+
# 3. Configure File Dialog Mock to return a valid string (Not a Mock Object)
78+
sys.modules['tkinter'].filedialog.asksaveasfilename.return_value = "dummy_log.csv"
79+
80+
# 4. THE TRICK: Mock time.sleep to break the infinite loop
81+
# After 3 calls, it raises an exception to exit the script gracefully
82+
mock_sleep = MagicMock(side_effect=[None, None, Exception("Force Test Exit")])
83+
84+
# 5. Mock open() so no CSV is actually created
9585
with patch('builtins.input', side_effect=fake_inputs), \
96-
patch('pandas.DataFrame.to_csv'):
86+
patch('builtins.open', mock_open()), \
87+
patch('time.sleep', mock_sleep):
9788

89+
module_name = "Lakeshore_350_340.Backends.T_Control_L350_Simple_Backend_v10"
9890
if module_name in sys.modules: del sys.modules[module_name]
91+
9992
try:
10093
__import__(module_name)
101-
except:
102-
pass # Scripts usually exit or hit EOF on mock inputs
94+
except Exception:
95+
# We expect the "Force Test Exit" exception here
96+
pass
10397

10498
# =============================================================
105-
# THE "HARD" TESTS
99+
# ASSERTIONS
106100
# =============================================================
107101

108-
# 1. Verify Connection Query
109-
# Did it ask "Who are you?" (*IDN?)
110-
# Note: We accept ANY call that contains *IDN?
102+
# 1. Did we ask for the ID? (Proves connection)
103+
# using assert_any_call because query is called many times
111104
spy_instr.query.assert_any_call('*IDN?')
112105
print(" -> Verified: *IDN? Query Sent")
113106

114-
# 2. Verify Heater Logic (Advanced)
115-
if spy_instr.write.called:
116-
args, _ = spy_instr.write.call_args
117-
print(f" -> Verified: Command sent to instrument: '{args[0]}'")
107+
# 2. Did we send the Heater Setup command?
108+
# The script sends: HTRSET 1,1,2,0,1
109+
# We check if ANY write command started with HTRSET
110+
htrset_sent = any("HTRSET" in str(call) for call in spy_instr.write.mock_calls)
111+
if htrset_sent:
112+
print(" -> Verified: Heater Configuration Sent (HTRSET)")
118113
else:
119-
print(" [Note] No write commands detected (Check mock setup if this persists)")
114+
print(" [Warn] HTRSET command not detected (Check strict string matching)")
115+
116+
# 3. Did we set the Setpoint?
117+
# Script: SETP 1,10.0
118+
setp_sent = any("SETP" in str(call) for call in spy_instr.write.mock_calls)
119+
if setp_sent:
120+
print(" -> Verified: Setpoint Command Sent (SETP)")
121+
122+
# 4. Crucial: Did the 'finally' block run and turn off the heater?
123+
# The script calls self.set_heater_range(HEATER_OUTPUT, 'off') -> 'RANGE 1,0'
124+
shutdown_sent = any("RANGE 1,0" in str(call) for call in spy_instr.write.mock_calls)
125+
if shutdown_sent:
126+
print(" -> Verified: Safe Shutdown Command Sent (RANGE 1,0)")
127+
else:
128+
# Fallback check: did we close the instrument?
129+
if spy_instr.close.called:
130+
print(" -> Verified: Instrument Connection Closed")
131+
else:
132+
self.fail("Safety Shutdown failed: Heater not turned off and connection not closed.")
120133

121134
# =========================================================================
122-
# TEST 3: GPIB SCANNER UTILITY
123-
# Purpose: Verify the scanner iterates addresses and queries them.
135+
# TEST 3: GPIB SCANNER (PASSED previously, kept same)
124136
# =========================================================================
125137
def test_gpib_scanner_loop(self):
126138
print("\n[SIMULATION] Testing GPIB Scanner Loop...")
127-
128139
with patch('pyvisa.ResourceManager') as MockRM:
129140
rm = MockRM.return_value
130-
131-
# 1. Simulate finding 2 instruments connected
132141
rm.list_resources.return_value = ('GPIB0::24::INSTR', 'GPIB0::12::INSTR')
133-
134-
# 2. Mock the instrument connection
135142
spy_inst = MagicMock()
136143
rm.open_resource.return_value.__enter__.return_value = spy_inst
137144

138-
# 3. Run the Scanner Frontend (Logic part)
139145
try:
140146
import Utilities.GPIB_Instrument_Scanner_Frontend_v4 as scanner
141-
142147
if hasattr(scanner, 'GPIBScannerWindow'):
143-
# Initialize the window (which triggers the scan)
144148
scanner.GPIBScannerWindow(MagicMock(), MagicMock())
145-
146-
# ASSERTION: Did it ask for the list of resources?
147149
rm.list_resources.assert_called()
148150
print(" -> Verified: Scanner requested resource list")
149-
150-
# ASSERTION: Did it try to open the found resources?
151151
rm.open_resource.assert_any_call('GPIB0::24::INSTR')
152152
print(" -> Verified: Scanner attempted connection to GPIB::24")
153-
154153
except ImportError:
155-
print(" [Skip] Scanner module not found/importable")
154+
pass
156155

157156
if __name__ == '__main__':
158157
unittest.main()

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