def test_06(self):
""" Cube """
#self.loadAndRun('Cube')
junctions = {'A', 'B', 'C', 'D', 'E', 'F', 'G', 'H'}
wires = {('B', 'F'): ('B', 'F'), ('A', 'B'): ('A', 'B'),
('B', 'C'): ('B', 'C'), ('E', 'F'): ('E', 'F'),
('D', 'H'): ('D', 'H'), ('G', 'H'): ('G', 'H'),
('C', 'D'): ('C', 'D'), ('D', 'A'): ('D', 'A'),
('H', 'E'): ('H', 'E'), ('C', 'G'): ('C', 'G'),
('F', 'G'): ('F', 'G'), ('A', 'E'): ('A', 'E'),
'battery': ('A', 'G')}
resistances = {('B', 'F'): 30, ('A', 'B'): 30, ('B', 'C'): 30,
('E', 'F'): 30, ('D', 'H'): 30, ('G', 'H'): 30,
('C', 'D'): 30, ('D', 'A'): 30, ('H', 'E'): 30,
('C', 'G'): 30, ('F', 'G'): 30, ('A', 'E'): 30,
'battery': 0}
voltages = {('B', 'F'): 0, ('A', 'B'): 0, ('B', 'C'): 0,
('E', 'F'): 0, ('D', 'H'): 0, ('G', 'H'): 0,
('C', 'D'): 0, ('D', 'A'): 0, ('H', 'E'): 0,
('C', 'G'): 0, ('F', 'G'): 0, ('A', 'E'): 0,
'battery': -300}
soln = {('A', 'B'): 4.0, ('B', 'C'): 2.0, ('C', 'D'): -2.0, ('D', 'A'): -4.0,
('E', 'F'): 2.0, ('F', 'G'): 4.0, ('G', 'H'): -4.0, ('H', 'E'): -2.0,
('A', 'E'): 4.0, ('B', 'F'): 2.0, ('C', 'G'): 4.0, ('D', 'H'): 2.0,
'battery': -12.0}
sub = lab.solveCircuit(junctions, wires, resistances, voltages)
self.validateEqual(soln, sub)
junctions = {'A', 'B', 'C', 'D', 'E', 'F', 'G', 'H'}
wires = {('D', 'H'): ('D', 'H'), ('A', 'E'): ('A', 'E'),
('C', 'D'): ('C', 'D'), ('E', 'F'): ('E', 'F'),
('G', 'H'): ('G', 'H'), ('B', 'F'): ('B', 'F'),
('C', 'G'): ('C', 'G'), ('F', 'G'): ('F', 'G'),
('H', 'E'): ('H', 'E'), ('B', 'C'): ('B', 'C'),
('D', 'A'): ('D', 'A'), ('A', 'B'): ('A', 'B'),
'battery': ('A', 'G')}
resistances = {('D', 'H'): 60, ('A', 'E'): 9, ('C', 'D'): 60, ('E', 'F'): 60,
('G', 'H'): 36, ('B', 'F'): 60, ('C', 'G'): 36, ('F', 'G'): 36,
('H', 'E'): 60, ('B', 'C'): 60, ('D', 'A'): 9, ('A', 'B'): 9,
'battery': 0}
voltages = {('D', 'H'): 0, ('A', 'E'): 0, ('C', 'D'): 0, ('E', 'F'): 0,
('G', 'H'): 0, ('B', 'F'): 0, ('C', 'G'): 0, ('F', 'G'): 0,
('H', 'E'): 0, ('B', 'C'): 0, ('D', 'A'): 0, ('A', 'B'): 0,
'battery': -300}
soln = {('A', 'B'): 4.0, ('B', 'C'): 2.0, ('C', 'D'): -2.0, ('D', 'A'): -4.0,
('E', 'F'): 2.0, ('F', 'G'): 4.0, ('G', 'H'): -4.0, ('H', 'E'): -2.0,
('A', 'E'): 4.0, ('B', 'F'): 2.0, ('C', 'G'): 4.0, ('D', 'H'): 2.0,
'battery': -12.0}
sub = lab.solveCircuit(junctions, wires, resistances, voltages)
self.validateEqual(soln, sub)
def loadAndRun(self, file):
num = 0
print()
for testCase in loadData('SolveCircuit_' + file + '.pickle'):
num += 1
print("Running sub-test", num)
sub = lab.solveCircuit(testCase['junctions'], testCase['wires'], testCase['resistances'], testCase['voltages'])
self.validateEqual(testCase['soln'], sub)
def test_03(self):
""" Parallel with multiple batteries """
#self.loadAndRun('MultiBatteryParallel')
junctions = {'A', 'B'}
wires = {'0': ('A', 'B'), '1': ('A', 'B'), '2': ('A', 'B')}
resistances = {'0': 2, '1': 4, '2': 4}
voltages = {'0': 6, '1': 12, '2': 16}
soln = {'0': -2, '1': 0.5, '2': 1.5}
sub = lab.solveCircuit(junctions, wires, resistances, voltages)
self.validateEqual(soln, sub)
def test_02(self):
""" Parallel with single battery """
#self.loadAndRun('SingleBatteryParallel')
junctions = {'A', 'B'}
wires = {'0': ('A', 'B'), '1': ('A', 'B'), '2': ('A', 'B')}
resistances = {'0': 2, '1': 4, '2': 4}
voltages = {'0': 5, '1': 0, '2': 0}
soln = {'0': 1.25, '1': -0.625, '2': -0.625}
sub = lab.solveCircuit(junctions, wires, resistances, voltages)
self.validateEqual(soln, sub)
def test_01(self):
""" Series triangle """
#self.loadAndRun('SeriesTriangle')
junctions = {'A', 'B', 'C'}
wires = {'0': ('A', 'B'), '1': ('B', 'C'), '2': ('C', 'A')}
resistances = {'0': 0, '1': 2, '2': 3}
voltages = {'0': 5, '1': 0, '2': 0}
soln = {'0': 1, '1': 1, '2': 1}
sub = lab.solveCircuit(junctions, wires, resistances, voltages)
self.validateEqual(soln, sub)
def test_05(self):
""" Short circuit """
#self.loadAndRun('ShortCircuit')
junctions = {'A', 'B'}
wires = {'0': ('A', 'B'), '1': ('A', 'B'), '2': ('A', 'B'), '3': ('B', 'A')}
resistances = {'0': 7, '1': 17.34348, '2': 420.6921, '3': 0}
voltages = {'0': 21, '1': 0, '2': 0, '3': 0}
soln = {'0': 3.0, '1': 0.0, '2': 0.0, '3': 3.0}
sub = lab.solveCircuit(junctions, wires, resistances, voltages)
self.validateEqual(soln, sub)
def test_04(self):
""" Wire sticking out of triangle """
#self.loadAndRun('StrayWire')
junctions = {'A', 'B', 'C', 'D'}
wires = {'0': ('A', 'B'), '1': ('B', 'C'), '2': ('C', 'A'), '3': ('C', 'D')}
resistances = {'0': 1.5, '1': 2.0, '2': 0, '3': 0}
voltages = {'0': 30, '1': 20, '2': 20, '3': 1000000}
soln = {'0': 20.0, '1': 20.0, '2': 20.0, '3': 0.0}
sub = lab.solveCircuit(junctions, wires, resistances, voltages)
self.validateEqual(soln, sub)