mutation.Mutant

mutation.Mutant(id, line, operator, original, mutated, source)

One planted change of a module.

Attributes

Name	Type	Description
id	str	M001, M002, … in source order.
line	int	Line of the changed node in the original module.
operator	str	compare, boolean, negation, condition, constant, operator, statement, raise or return.
original	str	The changed expression or statement before the change.
mutated	str	The same after the change.
source	str	The whole mutated module.

Examples

from spotregen.mutation import generate_mutants

mutant = generate_mutants("def f(x):\n    return x < 1\n")[0]
print(mutant.id, mutant.line, mutant.operator, mutant.original, "->", mutant.mutated)

M001 2 return return x < 1 -> return None