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# from evalidate import ExecutionException, ValidationException, Expr, base_eval_model
from evalidate import Expr, base_eval_model, ValidationException, ExecutionException
from copy import deepcopy
from collections import UserDict
class TestNoMutation():
def test_no_mutation_globals(self):
expr = Expr('a + b')
ctx = dict(a=1, b=2)
ctx_orig = deepcopy(ctx)
result = expr.eval(ctx_globals=ctx)
assert result == 3
assert ctx == ctx_orig
def test_no_mutation_locals(self):
expr = Expr('a + b')
ctx = dict(a=1, b=2)
ctx_orig = deepcopy(ctx)
result = expr.eval(ctx_locals=ctx)
assert result == 3
assert ctx == ctx_orig
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