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83 lines
4 KiB
Python
83 lines
4 KiB
Python
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import unittest
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import pytest
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from conditionals import (is_criticality_balanced,
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reactor_efficiency,
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fail_safe)
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class MeltdownMitigationTest(unittest.TestCase):
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"""Test cases for Meltdown mitigation exercise.
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"""
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@pytest.mark.task(taskno=1)
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def test_is_criticality_balanced(self):
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"""Testing border cases around typical points.
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T, n == (800, 500), (625, 800), (500, 1000), etc.
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"""
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test_data = ((750, 650, True), (799, 501, True), (500, 600, True),
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(1000, 800, False), (800, 500, False), (800, 500.01, False),
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(799.99, 500, False), (500.01, 999.99, False), (625, 800, False),
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(625.99, 800, False), (625.01, 799.99, False), (799.99, 500.01, True),
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(624.99, 799.99, True), (500, 1000, False), (500.01, 1000, False),
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(499.99, 1000, True))
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for variant, data in enumerate(test_data, start=1):
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temp, neutrons_emitted, expected = data
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with self.subTest(f'variation #{variant}', temp=temp, neutrons_emitted=neutrons_emitted, expected=expected):
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# pylint: disable=assignment-from-no-return
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actual_result = is_criticality_balanced(temp, neutrons_emitted)
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failure_message = (f'Called is_criticality_balanced({temp}, {neutrons_emitted}). '
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f' The function returned {actual_result}, '
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f'but the test expected {expected} as the return value.')
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self.assertEqual(actual_result, expected, failure_message)
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@pytest.mark.task(taskno=2)
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def test_reactor_efficiency(self):
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voltage = 10
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theoretical_max_power = 10000
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# The numbers are chosen so that current == 10 x percentage
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test_data = ((1000, 'green'), (999, 'green'), (800, 'green'),
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(799, 'orange'), (700, 'orange'), (600, 'orange'),
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(599, 'red'), (560, 'red'), (400, 'red'), (300, 'red'),
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(299, 'black'), (200, 'black'), (0, 'black'))
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for variant, data in enumerate(test_data, start=1):
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current, expected = data
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with self.subTest(f'variation #{variant}', voltage=voltage, current=current,
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theoretical_max_power=theoretical_max_power, expected=expected):
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# pylint: disable=assignment-from-no-return
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actual_result = reactor_efficiency(voltage, current, theoretical_max_power)
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failure_message =(f'Called reactor_efficiency({voltage}, {current}, {theoretical_max_power}). '
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f'The function returned {actual_result}, '
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f'but the test expected {expected} as the return value.')
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self.assertEqual(actual_result, expected, failure_message)
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@pytest.mark.task(taskno=3)
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def test_fail_safe(self):
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temp = 10
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threshold = 10000
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test_data = ((399, 'LOW'), (300, 'LOW'), (1, 'LOW'),
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(0, 'LOW'), (901, 'NORMAL'), (1000, 'NORMAL'),
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(1099, 'NORMAL'), (899, 'LOW'), (700, 'LOW'),
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(400, 'LOW'), (1101, 'DANGER'), (1200, 'DANGER'))
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for variant, (neutrons_per_second, expected) in enumerate(test_data, start=1):
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with self.subTest(f'variation #{variant}', temp=temp, neutrons_per_second=neutrons_per_second,
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threshold=threshold, expected=expected):
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# pylint: disable=assignment-from-no-return
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actual_result = fail_safe(temp, neutrons_per_second, threshold)
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failure_message = (f'Called fail_safe({temp}, {neutrons_per_second}, {threshold}). '
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f'The function returned {actual_result}, '
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f'but the test expected {expected} as the return value.')
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self.assertEqual(actual_result, expected, failure_message)
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