#include int add(int a, int b) { return a + b; } TEST(AddTest, PositiveNumbers) { EXPECT_EQ(add(1, 2), 3); EXPECT_EQ(add(2, 3), 5); } TEST(AddTest, NegativeNumbers) { EXPECT_EQ(add(-1, -1), -2); EXPECT_EQ(add(-1, 1), 0); }