def SSE(dp, var, equ):
if !checkDPFormat(dp):
print "ERROR: invalid dotplot (dp) format in SSE"
return -1
if !calc.checkVarFormat(var):
print "ERROR: invalid var format in SSE"
return -2
if 'x' not in equ:
print "ERROR: must have x in equ. in SSE"
return -3
r = 0
for i in dp:
var["x"] = i[0]
r += (i[1] - calc.solve(var, equ)) ** 2
return r
def test_calc(expr: str, result: str):
assert solve(expr) == result
def test_exception_not_found(expr: str):
with pytest.raises(AssertionError):
solve(expr)
def test_solve_5():
assert solve([
25, 4, '*', 3, '*', 10, '/', 5, 6, '*', 3, '/', 4, '*', '-', 10, 11,
'*', 12, '*', 15, '/', '+'
]) == 78
def test_solve_4():
assert solve([1, 2, '*', 3, '*', 4, '*', 5, '*']) == 120
def test_solve_3():
assert solve([45, 5, '-']) == 40
def test_solve_1():
assert solve([45, 5, '+']) == 50
def test_solve_0():
assert solve([45, 5, 9, '*', '-', 6, 2, '/', '+']) == 3