Test for rr

rr_test.cc

#include<gtest/gtest.h>

TEST(Rr, Empty) 
{
    std::string str("");
    unsigned int num = reverse_and_replace(str);

    EXPECT_EQ(0, num);
    EXPECT_EQ("", str); 
}

TEST(Rr, Odd) 
{
    std::string str("abc\\123");
    unsigned int num = reverse_and_replace(str);

    EXPECT_EQ(1, num);
    EXPECT_EQ("321/cba", str); 
}

TEST(Rr, Even) 
{
    std::string str("ab\\c\\01234");
    unsigned int num = reverse_and_replace(str);

    EXPECT_EQ(2, num);
    EXPECT_EQ("43210/c/ba", str); 
}