gtest expect_streq

//run ok
char *string = "abc";

char *IsNULL() { return NULL; }
char *IsNULL2() { return string; }

TEST(EXPECT_EQ_TEST, IsNULL)
{
    EXPECT_STRNE("", IsNULL());
    EXPECT_STREQ(NULL, IsNULL());
    EXPECT_EQ(NULL, IsNULL());
}

TEST(EXPECT_EQ_TEST, IsNULL2)
{
    EXPECT_STREQ(string, IsNULL2());
    EXPECT_STRNE("", IsNULL2());
    EXPECT_STRNE(NULL, IsNULL2());
}