1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
|
/*******************************************************************\
Module: Tests for constant_abstract_valuet::to_predicate
Author: Jez Higgins
\*******************************************************************/
#include <util/arith_tools.h>
#include <util/bitvector_types.h>
#include <util/namespace.h>
#include <util/symbol_table.h>
#include <analyses/variable-sensitivity/abstract_environment.h>
#include <analyses/variable-sensitivity/constant_abstract_value.h>
#include <analyses/variable-sensitivity/variable_sensitivity_object_factory.h>
#include <analyses/variable-sensitivity/variable_sensitivity_test_helpers.h>
#include <testing-utils/use_catch.h>
SCENARIO(
"constant_abstract_value to predicate",
"[core][analyses][variable-sensitivity][constant_abstract_value][to_"
"predicate]")
{
const typet type = signedbv_typet(32);
const exprt val2 = from_integer(2, type);
const exprt x_name = symbol_exprt("x", type);
auto config = vsd_configt::constant_domain();
config.context_tracking.data_dependency_context = false;
config.context_tracking.last_write_context = false;
auto object_factory =
variable_sensitivity_object_factoryt::configured_with(config);
abstract_environmentt environment{object_factory};
environment.make_top();
symbol_tablet symbol_table;
namespacet ns(symbol_table);
GIVEN("constant_abstract_value")
{
WHEN("it is TOP")
{
auto obj = make_top_constant();
THEN_PREDICATE(obj, "TRUE");
}
WHEN("it is BOTTOM")
{
auto obj = make_bottom_constant();
THEN_PREDICATE(obj, "FALSE");
}
WHEN("x = 2")
{
auto obj = make_constant(val2, environment, ns);
THEN_PREDICATE(obj, "x == 2");
}
WHEN("(1 + 2) = 3")
{
auto val1 = from_integer(1, type);
auto c3 = make_constant(from_integer(3, type), environment, ns);
auto pred = c3->to_predicate(plus_exprt(val1, val2));
THEN("predicate is (1 + 2) = 3")
{
auto repr = expr_to_str(pred);
REQUIRE(repr == "1 + 2 == 3");
}
}
}
}
|
