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Unit tests for length_of_decimal_int

This commit is contained in:
Joel Allred 2019-06-11 17:35:30 +01:00
parent f61877a01a
commit 710b1c831f
2 changed files with 69 additions and 0 deletions
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1
unit/Makefile
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@ -49,6 +49,7 @@ SRC += analyses/ai/ai.cpp \
solvers/strings/string_constraint_generator_valueof/get_numeric_value_from_character.cpp \
solvers/strings/string_constraint_generator_valueof/is_digit_with_radix.cpp \
solvers/strings/string_format_builtin_function/length_for_format_specifier.cpp \
solvers/strings/string_format_builtin_function/length_of_decimal_int.cpp \
solvers/strings/string_refinement/concretize_array.cpp \
solvers/strings/string_refinement/sparse_array.cpp \
solvers/strings/string_refinement/substitute_array_list.cpp \

68
unit/solvers/strings/string_format_builtin_function/length_of_decimal_int.cpp Normal file
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@ -0,0 +1,68 @@
/*******************************************************************\
Module: Unit tests for length_of_decimal_int in
solvers/refinement/string_format_builtin_function.cpp
Author: Diffblue Ltd.
\*******************************************************************/
#include <testing-utils/use_catch.h>
#include <solvers/strings/string_format_builtin_function.h>
#include <util/simplify_expr.h>
#include <util/symbol_table.h>
SCENARIO(
"length_of_decimal_int",
"[core][solvers][strings][string_format_builtin_function]")
{
const typet type = signedbv_typet(32);
const symbol_tablet symbol_table;
const namespacet ns{symbol_table};
const std::vector<mp_integer> input_values = {
0, 1, 10, 15, 999, 1000000001, -1, -21111111, -1234567890};
const std::vector<int> oracles_for_base_10 = {1, 1, 2, 2, 3, 10, 2, 9, 11};
const std::vector<int> oracles_for_base_16 = {1, 1, 1, 1, 3, 8, 2, 8, 9};
WHEN("base = 10")
{
for(size_t i = 0; i < input_values.size(); i++)
{
exprt input_expr = from_integer(input_values[i], type);
WHEN("input exprt = " << input_values[i])
{
const exprt actual = length_of_decimal_int(input_expr, type, 10);
const int oracle = oracles_for_base_10[i];
THEN("length expression is " << oracle)
{
const int actual_int =
numeric_cast<int>(to_constant_expr(simplify_expr(actual, ns)))
.value();
REQUIRE(actual_int == oracle);
}
}
}
}
WHEN("base = 16")
{
for(size_t i = 0; i < input_values.size(); i++)
{
exprt input_expr = from_integer(input_values[i], type);
WHEN("input exprt = " << input_values[i])
{
const exprt actual = length_of_decimal_int(input_expr, type, 16);
const int oracle = oracles_for_base_16[i];
THEN("length expression is " << oracle)
{
const int actual_int =
*numeric_cast<int>(to_constant_expr(simplify_expr(actual, ns)));
REQUIRE(actual_int == oracle);
}
}
}
}
}