TEST(Zhiltsov_Max_ComplexNumberTest, LimitingValueAddition_Correct) {
const ComplexNumber z(std::numeric_limits<double>::max(), 0);
ComplexNumber sum = z + z;
EXPECT_TRUE(std::isinf(sum.getRe()));
}
TEST(Zhiltsov_Max_ComplexNumberTest, Multiplication_Correct) {
const ComplexNumber z1(1.0e100, 0);
const ComplexNumber z2(2.0, 0);
ComplexNumber result = z1 * z2;
EXPECT_DOUBLE_EQ(2.0e100, result.getRe());
}
TEST(Zhiltsov_Max_ComplexNumberTest, DISABLED_LimitingValueAddition_Incorrect) {
const ComplexNumber z1(std::numeric_limits<double>::max(), 0);
const ComplexNumber z2(1.0, 0.0);
ComplexNumber sum = z1 + z2;
/*
Failure because of IEEE754 floating point format and
addition algorithm in particular.
Expected result is at least "+inf" value
instead of the same value as bigger operand.
Possible solution:
a) try to use a safe arihmetics algorithms
b) throw an expection
*/
EXPECT_TRUE(std::isinf(sum.getRe()));
}
