26     android::String8 str("hello");  in TEST_F()  local
27     ASSERT_TRUE(StringUtil::compare(str, "hello") == 0);  in TEST_F()
28     ASSERT_TRUE(StringUtil::compare(str, "hi") != 0);  in TEST_F()
32     android::String8 str("hello there");  in TEST_F()  local
34     android::String8 sub1 = StringUtil::substr(str, 0, 5);  in TEST_F()
37     android::String8 sub2 = StringUtil::substr(str, 10, 5);  in TEST_F()
40     android::String8 sub3 = StringUtil::substr(str, 6, 5);  in TEST_F()
43     android::String8 sub4 = StringUtil::substr(str, 100, 5);  in TEST_F()
48     android::String8 str("hello there");  in TEST_F()  local
49     ASSERT_TRUE(StringUtil::endsWith(str, "there"));  in TEST_F()
50     ASSERT_TRUE(StringUtil::endsWith(str, "hello there"));  in TEST_F()
51     ASSERT_TRUE(!StringUtil::endsWith(str, "not there"));  in TEST_F()
55     android::String8 str("hello:there:break:this:");  in TEST_F()  local
56     std::vector<android::String8>* tokens = StringUtil::split(str, ':');  in TEST_F()