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https://github.com/cea-sec/miasm
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Ajax
68 lines
1.7 KiB
Python
68 lines
1.7 KiB
Python
#
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# Expression regression tests #
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#
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from pdb import pm
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from miasm2.expression.expression import *
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from miasm2.expression.expression_helper import *
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# Expression comparison
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assert(ExprInt(-1, 64) != ExprInt(-2, 64))
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assert(ExprInt(1, 64) != ExprInt(1, 32))
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# Expression size
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big_cst = ExprInt(1, size=0x1000)
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assert big_cst.size == 0x1000
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# Possible values
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#- Common constants
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A = ExprId("A")
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cond1 = ExprId("cond1", 1)
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cond2 = ExprId("cond2", 16)
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cst1 = ExprInt(1, 32)
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cst2 = ExprInt(2, 32)
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cst3 = ExprInt(3, 32)
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cst4 = ExprInt(4, 32)
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#- Launch tests
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for expr in [
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cst1,
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A,
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ExprMem(cst1, 32),
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ExprCond(cond1, cst1, cst2),
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ExprMem(ExprCond(cond1, cst1, cst2), 16),
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ExprCond(cond1,
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ExprCond(cond2, cst3, cst4),
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cst2),
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A + cst1,
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A + ExprCond(cond1, cst1, cst2),
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ExprCond(cond1, cst1, cst2) + ExprCond(cond2, cst3, cst4),
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ExprCompose(A, cst1),
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ExprCompose(ExprCond(cond1, cst1, cst2), A),
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ExprCompose(ExprCond(cond1, cst1, cst2),
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ExprCond(cond2, cst3, cst4)),
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ExprCond(ExprCond(cond1, cst1, cst2), cst3, cst4),
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]:
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print "*" * 80
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print expr
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sol = possible_values(expr)
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print sol
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print "Resulting constraints:"
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for consval in sol:
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print "For value %s" % consval.value
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for constraint in consval.constraints:
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print "\t%s" % constraint.to_constraint()
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# Repr
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for expr in [
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cst1,
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A,
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ExprMem(cst1, 32),
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ExprCond(cond1, cst1, cst2),
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A + cst1,
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ExprCompose(A, cst1),
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A.msb(),
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ExprAff(A, cst1),
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]:
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print repr(expr)
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assert expr == eval(repr(expr))
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