deepstate/examples/IntegerArithmetic.cpp

47 lines
1.4 KiB
C++

/*
* Copyright (c) 2017 Trail of Bits, Inc.
*
* Licensed under the Apache License, Version 2.0 (the "License");
* you may not use this file except in compliance with the License.
* You may obtain a copy of the License at
*
* http://www.apache.org/licenses/LICENSE-2.0
*
* Unless required by applicable law or agreed to in writing, software
* distributed under the License is distributed on an "AS IS" BASIS,
* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
* See the License for the specific language governing permissions and
* limitations under the License.
*/
#include <deepstate/DeepState.hpp>
using namespace deepstate;
DEEPSTATE_NOINLINE int add(int x, int y) {
return x + y;
}
TEST(Arithmetic, AdditionIsCommutative) {
ForAll<int, int>([] (int x, int y) {
ASSERT_EQ(add(x, y), add(y, x))
<< "Addition of signed integers must commute.";
});
}
TEST(Arithmetic, AdditionIsAssociative) {
ForAll<int, int, int>([] (int x, int y, int z) {
ASSERT_EQ(add(x, add(y, z)), add(add(x, y), z))
<< "Addition of signed integers must associate.";
});
}
TEST(Arithmetic, InvertibleMultiplication_CanFail) {
ForAll<int, int>([] (int x, int y) {
ASSUME_NE(y, 0)
<< "Assumed non-zero value for y: " << y;
ASSERT_EQ(x, (x / y) * y)
<< x << " != (" << x << " / " << y << ") * " << y;
});
}